./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3d9847fe213bf8df5d23c53d2bc8b53fb384c85820b87c09591484702dabefc3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:28:13,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:28:14,036 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:28:14,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:28:14,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:28:14,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:28:14,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:28:14,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:28:14,080 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:28:14,080 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:28:14,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:28:14,080 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:28:14,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:28:14,081 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:28:14,081 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:28:14,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:28:14,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:28:14,081 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:28:14,081 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:28:14,082 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:28:14,082 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:28:14,082 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:28:14,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:28:14,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:28:14,082 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:28:14,082 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:28:14,083 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:28:14,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:28:14,083 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:28:14,083 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:28:14,083 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:28:14,083 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:28:14,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:28:14,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:28:14,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:28:14,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:28:14,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:28:14,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:28:14,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:28:14,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:28:14,085 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:28:14,085 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:28:14,085 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:28:14,085 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:28:14,085 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:28:14,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:28:14,085 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:28:14,086 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:28:14,086 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:28:14,086 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:28:14,086 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d9847fe213bf8df5d23c53d2bc8b53fb384c85820b87c09591484702dabefc3 [2024-11-28 04:28:14,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:28:14,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:28:14,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:28:14,472 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:28:14,473 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:28:14,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound10.c [2024-11-28 04:28:18,050 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/data/d3857032a/ffc35b8e40c04c9e88a18b8c9852df52/FLAG08422a9d3 [2024-11-28 04:28:18,351 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:28:18,352 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound10.c [2024-11-28 04:28:18,362 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/data/d3857032a/ffc35b8e40c04c9e88a18b8c9852df52/FLAG08422a9d3 [2024-11-28 04:28:18,623 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/data/d3857032a/ffc35b8e40c04c9e88a18b8c9852df52 [2024-11-28 04:28:18,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:28:18,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:28:18,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:28:18,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:28:18,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:28:18,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:28:18" (1/1) ... [2024-11-28 04:28:18,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1437f1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18, skipping insertion in model container [2024-11-28 04:28:18,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:28:18" (1/1) ... [2024-11-28 04:28:18,661 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:28:18,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:28:18,892 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:28:18,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:28:18,939 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:28:18,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18 WrapperNode [2024-11-28 04:28:18,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:28:18,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:28:18,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:28:18,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:28:18,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18" (1/1) ... [2024-11-28 04:28:18,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18" (1/1) ... [2024-11-28 04:28:19,008 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 118 [2024-11-28 04:28:19,008 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:28:19,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:28:19,012 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:28:19,012 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:28:19,028 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18" (1/1) ... [2024-11-28 04:28:19,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18" (1/1) ... [2024-11-28 04:28:19,031 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18" (1/1) ... [2024-11-28 04:28:19,045 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:28:19,046 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18" (1/1) ... [2024-11-28 04:28:19,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18" (1/1) ... [2024-11-28 04:28:19,050 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18" (1/1) ... [2024-11-28 04:28:19,051 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18" (1/1) ... [2024-11-28 04:28:19,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18" (1/1) ... [2024-11-28 04:28:19,060 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18" (1/1) ... [2024-11-28 04:28:19,061 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18" (1/1) ... [2024-11-28 04:28:19,067 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:28:19,068 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:28:19,068 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:28:19,068 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:28:19,070 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18" (1/1) ... [2024-11-28 04:28:19,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:28:19,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:19,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:28:19,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:28:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:28:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:28:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:28:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:28:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:28:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:28:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:28:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:28:19,233 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:28:19,235 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:28:19,857 INFO L? ?]: Removed 157 outVars from TransFormulas that were not future-live. [2024-11-28 04:28:19,857 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:28:19,874 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:28:19,875 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:28:19,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:28:19 BoogieIcfgContainer [2024-11-28 04:28:19,875 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:28:19,878 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:28:19,878 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:28:19,885 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:28:19,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:28:18" (1/3) ... [2024-11-28 04:28:19,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f772849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:28:19, skipping insertion in model container [2024-11-28 04:28:19,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:18" (2/3) ... [2024-11-28 04:28:19,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f772849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:28:19, skipping insertion in model container [2024-11-28 04:28:19,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:28:19" (3/3) ... [2024-11-28 04:28:19,888 INFO L128 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound10.c [2024-11-28 04:28:19,910 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:28:19,912 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd-ll_valuebound10.c that has 3 procedures, 143 locations, 1 initial locations, 1 loop locations, and 56 error locations. [2024-11-28 04:28:19,997 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:28:20,017 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@52987df2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:28:20,018 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-11-28 04:28:20,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 73 states have (on average 1.8493150684931507) internal successors, (135), 129 states have internal predecessors, (135), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 04:28:20,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 04:28:20,032 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:20,034 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:20,034 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:20,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:20,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2059565640, now seen corresponding path program 1 times [2024-11-28 04:28:20,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:20,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841475512] [2024-11-28 04:28:20,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:20,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:28:20,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:20,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841475512] [2024-11-28 04:28:20,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841475512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:20,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445970148] [2024-11-28 04:28:20,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:20,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:20,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:20,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:20,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:28:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:20,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:28:20,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:20,389 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:28:20,389 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:20,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445970148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:20,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:28:20,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:28:20,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545784649] [2024-11-28 04:28:20,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:20,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:28:20,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:20,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:28:20,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:28:20,426 INFO L87 Difference]: Start difference. First operand has 143 states, 73 states have (on average 1.8493150684931507) internal successors, (135), 129 states have internal predecessors, (135), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:28:20,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:20,493 INFO L93 Difference]: Finished difference Result 282 states and 320 transitions. [2024-11-28 04:28:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:28:20,496 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2024-11-28 04:28:20,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:20,510 INFO L225 Difference]: With dead ends: 282 [2024-11-28 04:28:20,510 INFO L226 Difference]: Without dead ends: 136 [2024-11-28 04:28:20,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:28:20,521 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:20,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:28:20,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-28 04:28:20,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-11-28 04:28:20,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 68 states have (on average 1.838235294117647) internal successors, (125), 123 states have internal predecessors, (125), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:28:20,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 145 transitions. [2024-11-28 04:28:20,587 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 145 transitions. Word has length 25 [2024-11-28 04:28:20,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:20,587 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 145 transitions. [2024-11-28 04:28:20,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:28:20,588 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 145 transitions. [2024-11-28 04:28:20,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 04:28:20,592 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:20,592 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:20,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:28:20,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:20,798 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:20,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:20,799 INFO L85 PathProgramCache]: Analyzing trace with hash 811223820, now seen corresponding path program 1 times [2024-11-28 04:28:20,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:20,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266702786] [2024-11-28 04:28:20,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:20,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:20,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [659590047] [2024-11-28 04:28:20,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:20,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:20,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:20,838 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:20,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:28:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:20,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:28:20,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:20,967 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:28:20,968 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:20,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:20,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266702786] [2024-11-28 04:28:20,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:20,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659590047] [2024-11-28 04:28:20,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659590047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:20,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:20,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:28:20,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711276223] [2024-11-28 04:28:20,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:20,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:20,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:20,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:20,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:20,972 INFO L87 Difference]: Start difference. First operand 136 states and 145 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:28:21,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:21,473 INFO L93 Difference]: Finished difference Result 220 states and 268 transitions. [2024-11-28 04:28:21,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:21,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 25 [2024-11-28 04:28:21,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:21,476 INFO L225 Difference]: With dead ends: 220 [2024-11-28 04:28:21,477 INFO L226 Difference]: Without dead ends: 216 [2024-11-28 04:28:21,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:21,478 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 73 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:21,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 146 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:28:21,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-28 04:28:21,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 174. [2024-11-28 04:28:21,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 101 states have (on average 1.8514851485148516) internal successors, (187), 156 states have internal predecessors, (187), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 04:28:21,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 217 transitions. [2024-11-28 04:28:21,502 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 217 transitions. Word has length 25 [2024-11-28 04:28:21,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:21,502 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 217 transitions. [2024-11-28 04:28:21,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:28:21,503 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 217 transitions. [2024-11-28 04:28:21,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-28 04:28:21,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:21,504 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:21,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:28:21,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:21,704 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:21,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:21,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2097955250, now seen corresponding path program 1 times [2024-11-28 04:28:21,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:21,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732302081] [2024-11-28 04:28:21,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:21,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:21,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409725249] [2024-11-28 04:28:21,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:21,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:21,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:21,753 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:21,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:28:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:21,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:28:21,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:21,830 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:28:21,830 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:21,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:21,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732302081] [2024-11-28 04:28:21,830 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:21,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409725249] [2024-11-28 04:28:21,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409725249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:21,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:21,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:28:21,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730514953] [2024-11-28 04:28:21,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:21,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:21,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:21,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:21,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:21,833 INFO L87 Difference]: Start difference. First operand 174 states and 217 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:28:22,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:22,112 INFO L93 Difference]: Finished difference Result 274 states and 340 transitions. [2024-11-28 04:28:22,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:22,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2024-11-28 04:28:22,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:22,115 INFO L225 Difference]: With dead ends: 274 [2024-11-28 04:28:22,115 INFO L226 Difference]: Without dead ends: 266 [2024-11-28 04:28:22,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:22,116 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 84 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:22,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 206 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:28:22,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-28 04:28:22,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 226. [2024-11-28 04:28:22,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 147 states have (on average 1.8027210884353742) internal successors, (265), 202 states have internal predecessors, (265), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 04:28:22,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 307 transitions. [2024-11-28 04:28:22,145 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 307 transitions. Word has length 27 [2024-11-28 04:28:22,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:22,145 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 307 transitions. [2024-11-28 04:28:22,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:28:22,146 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 307 transitions. [2024-11-28 04:28:22,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 04:28:22,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:22,146 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:22,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:28:22,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:22,351 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:22,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:22,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1795331696, now seen corresponding path program 1 times [2024-11-28 04:28:22,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:22,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233529050] [2024-11-28 04:28:22,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:22,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:22,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1213999827] [2024-11-28 04:28:22,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:22,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:22,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:22,407 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:22,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:28:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:22,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:28:22,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:22,568 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:28:22,568 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:22,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:22,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233529050] [2024-11-28 04:28:22,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:22,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213999827] [2024-11-28 04:28:22,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213999827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:22,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:22,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:28:22,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917469525] [2024-11-28 04:28:22,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:22,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:22,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:22,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:22,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:22,572 INFO L87 Difference]: Start difference. First operand 226 states and 307 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:28:22,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:22,961 INFO L93 Difference]: Finished difference Result 260 states and 326 transitions. [2024-11-28 04:28:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:22,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2024-11-28 04:28:22,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:22,964 INFO L225 Difference]: With dead ends: 260 [2024-11-28 04:28:22,964 INFO L226 Difference]: Without dead ends: 246 [2024-11-28 04:28:22,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:22,965 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 61 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:22,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 132 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:28:22,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-28 04:28:22,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 192. [2024-11-28 04:28:22,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 118 states have (on average 1.7203389830508475) internal successors, (203), 173 states have internal predecessors, (203), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:28:22,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 235 transitions. [2024-11-28 04:28:22,980 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 235 transitions. Word has length 29 [2024-11-28 04:28:22,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:22,981 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 235 transitions. [2024-11-28 04:28:22,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 04:28:22,981 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 235 transitions. [2024-11-28 04:28:22,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 04:28:22,982 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:22,982 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:22,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:28:23,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:23,183 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:23,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:23,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2135988288, now seen corresponding path program 1 times [2024-11-28 04:28:23,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:23,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327741612] [2024-11-28 04:28:23,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:23,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:23,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [141405743] [2024-11-28 04:28:23,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:23,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:23,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:23,214 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:23,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:28:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:23,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:28:23,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:23,306 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:28:23,306 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:23,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:23,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327741612] [2024-11-28 04:28:23,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:23,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141405743] [2024-11-28 04:28:23,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141405743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:23,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:23,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:28:23,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655480426] [2024-11-28 04:28:23,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:23,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:23,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:23,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:23,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:23,311 INFO L87 Difference]: Start difference. First operand 192 states and 235 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:28:23,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:23,562 INFO L93 Difference]: Finished difference Result 352 states and 452 transitions. [2024-11-28 04:28:23,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:23,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2024-11-28 04:28:23,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:23,566 INFO L225 Difference]: With dead ends: 352 [2024-11-28 04:28:23,566 INFO L226 Difference]: Without dead ends: 344 [2024-11-28 04:28:23,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:23,569 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 84 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:23,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 200 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:28:23,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-28 04:28:23,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 269. [2024-11-28 04:28:23,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 186 states have (on average 1.7043010752688172) internal successors, (317), 241 states have internal predecessors, (317), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:23,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 367 transitions. [2024-11-28 04:28:23,623 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 367 transitions. Word has length 36 [2024-11-28 04:28:23,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:23,623 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 367 transitions. [2024-11-28 04:28:23,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:28:23,625 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 367 transitions. [2024-11-28 04:28:23,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 04:28:23,626 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:23,627 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:23,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 04:28:23,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:23,827 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:23,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:23,828 INFO L85 PathProgramCache]: Analyzing trace with hash -309620702, now seen corresponding path program 1 times [2024-11-28 04:28:23,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:23,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376702633] [2024-11-28 04:28:23,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:23,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:23,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1733192649] [2024-11-28 04:28:23,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:23,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:23,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:23,860 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:23,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:28:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:23,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:28:23,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:24,057 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:28:24,058 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:24,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:24,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376702633] [2024-11-28 04:28:24,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:24,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733192649] [2024-11-28 04:28:24,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733192649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:24,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:24,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:24,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456614942] [2024-11-28 04:28:24,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:24,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:24,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:24,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:24,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:24,063 INFO L87 Difference]: Start difference. First operand 269 states and 367 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:28:24,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:24,500 INFO L93 Difference]: Finished difference Result 322 states and 432 transitions. [2024-11-28 04:28:24,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:24,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2024-11-28 04:28:24,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:24,503 INFO L225 Difference]: With dead ends: 322 [2024-11-28 04:28:24,503 INFO L226 Difference]: Without dead ends: 320 [2024-11-28 04:28:24,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:24,504 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 230 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:24,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 143 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:28:24,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-28 04:28:24,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 269. [2024-11-28 04:28:24,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 186 states have (on average 1.6827956989247312) internal successors, (313), 241 states have internal predecessors, (313), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:24,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 363 transitions. [2024-11-28 04:28:24,526 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 363 transitions. Word has length 38 [2024-11-28 04:28:24,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:24,526 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 363 transitions. [2024-11-28 04:28:24,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:28:24,527 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 363 transitions. [2024-11-28 04:28:24,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 04:28:24,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:24,528 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:24,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:28:24,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 04:28:24,729 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:24,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:24,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1008307103, now seen corresponding path program 1 times [2024-11-28 04:28:24,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:24,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52870065] [2024-11-28 04:28:24,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:24,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:24,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [909754705] [2024-11-28 04:28:24,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:24,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:24,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:24,781 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:24,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:28:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:24,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:28:24,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:24,964 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:28:24,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:24,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:24,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52870065] [2024-11-28 04:28:24,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:24,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909754705] [2024-11-28 04:28:24,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909754705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:24,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:24,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:24,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243021754] [2024-11-28 04:28:24,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:24,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:24,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:24,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:24,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:24,971 INFO L87 Difference]: Start difference. First operand 269 states and 363 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:28:25,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:25,385 INFO L93 Difference]: Finished difference Result 322 states and 428 transitions. [2024-11-28 04:28:25,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:25,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2024-11-28 04:28:25,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:25,390 INFO L225 Difference]: With dead ends: 322 [2024-11-28 04:28:25,391 INFO L226 Difference]: Without dead ends: 320 [2024-11-28 04:28:25,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:25,392 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 169 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:25,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 160 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:28:25,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-28 04:28:25,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 269. [2024-11-28 04:28:25,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 186 states have (on average 1.6612903225806452) internal successors, (309), 241 states have internal predecessors, (309), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:25,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 359 transitions. [2024-11-28 04:28:25,421 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 359 transitions. Word has length 39 [2024-11-28 04:28:25,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:25,421 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 359 transitions. [2024-11-28 04:28:25,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:28:25,422 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 359 transitions. [2024-11-28 04:28:25,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 04:28:25,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:25,423 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:25,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 04:28:25,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 04:28:25,627 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:25,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:25,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1192749052, now seen corresponding path program 1 times [2024-11-28 04:28:25,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:25,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864353819] [2024-11-28 04:28:25,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:25,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:25,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [734347816] [2024-11-28 04:28:25,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:25,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:25,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:25,658 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:25,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:28:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:25,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:28:25,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:25,770 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:28:25,770 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:25,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:25,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864353819] [2024-11-28 04:28:25,771 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:25,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734347816] [2024-11-28 04:28:25,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734347816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:25,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:25,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:25,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988060552] [2024-11-28 04:28:25,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:25,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:25,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:25,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:25,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:25,773 INFO L87 Difference]: Start difference. First operand 269 states and 359 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:28:26,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:26,276 INFO L93 Difference]: Finished difference Result 342 states and 432 transitions. [2024-11-28 04:28:26,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:26,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2024-11-28 04:28:26,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:26,279 INFO L225 Difference]: With dead ends: 342 [2024-11-28 04:28:26,279 INFO L226 Difference]: Without dead ends: 340 [2024-11-28 04:28:26,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:26,280 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 84 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:26,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 221 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:28:26,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-28 04:28:26,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 270. [2024-11-28 04:28:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 187 states have (on average 1.641711229946524) internal successors, (307), 242 states have internal predecessors, (307), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:26,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 357 transitions. [2024-11-28 04:28:26,300 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 357 transitions. Word has length 40 [2024-11-28 04:28:26,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:26,301 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 357 transitions. [2024-11-28 04:28:26,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:28:26,301 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 357 transitions. [2024-11-28 04:28:26,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 04:28:26,302 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:26,302 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:26,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:28:26,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-28 04:28:26,503 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:26,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:26,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1679485123, now seen corresponding path program 1 times [2024-11-28 04:28:26,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:26,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609588381] [2024-11-28 04:28:26,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:26,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:26,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1473646363] [2024-11-28 04:28:26,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:26,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:26,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:26,530 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:26,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:28:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:26,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:28:26,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:26,687 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:28:26,687 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:26,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:26,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609588381] [2024-11-28 04:28:26,688 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:26,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473646363] [2024-11-28 04:28:26,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473646363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:26,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:26,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:26,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067286636] [2024-11-28 04:28:26,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:26,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:26,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:26,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:26,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:26,692 INFO L87 Difference]: Start difference. First operand 270 states and 357 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:28:27,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:27,548 INFO L93 Difference]: Finished difference Result 342 states and 428 transitions. [2024-11-28 04:28:27,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:27,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2024-11-28 04:28:27,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:27,551 INFO L225 Difference]: With dead ends: 342 [2024-11-28 04:28:27,552 INFO L226 Difference]: Without dead ends: 340 [2024-11-28 04:28:27,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:27,553 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 84 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:27,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 224 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:28:27,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-28 04:28:27,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 271. [2024-11-28 04:28:27,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 188 states have (on average 1.622340425531915) internal successors, (305), 243 states have internal predecessors, (305), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:27,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 355 transitions. [2024-11-28 04:28:27,573 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 355 transitions. Word has length 41 [2024-11-28 04:28:27,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:27,573 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 355 transitions. [2024-11-28 04:28:27,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:28:27,573 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 355 transitions. [2024-11-28 04:28:27,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 04:28:27,575 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:27,575 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:27,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 04:28:27,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:27,779 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:27,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:27,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2075591644, now seen corresponding path program 1 times [2024-11-28 04:28:27,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:27,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056467179] [2024-11-28 04:28:27,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:27,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:27,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641967273] [2024-11-28 04:28:27,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:27,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:27,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:27,805 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:27,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:28:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:27,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:28:27,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:27,998 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:28:27,998 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:27,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:27,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056467179] [2024-11-28 04:28:27,999 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:27,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641967273] [2024-11-28 04:28:27,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641967273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:27,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:27,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:28,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645044473] [2024-11-28 04:28:28,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:28,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:28,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:28,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:28,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:28,001 INFO L87 Difference]: Start difference. First operand 271 states and 355 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:28:28,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:28,308 INFO L93 Difference]: Finished difference Result 293 states and 374 transitions. [2024-11-28 04:28:28,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:28,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 49 [2024-11-28 04:28:28,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:28,311 INFO L225 Difference]: With dead ends: 293 [2024-11-28 04:28:28,311 INFO L226 Difference]: Without dead ends: 291 [2024-11-28 04:28:28,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:28,312 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 154 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:28,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 171 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:28:28,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-28 04:28:28,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 272. [2024-11-28 04:28:28,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 189 states have (on average 1.6084656084656084) internal successors, (304), 244 states have internal predecessors, (304), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:28,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 354 transitions. [2024-11-28 04:28:28,335 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 354 transitions. Word has length 49 [2024-11-28 04:28:28,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:28,335 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 354 transitions. [2024-11-28 04:28:28,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:28:28,335 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 354 transitions. [2024-11-28 04:28:28,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-28 04:28:28,341 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:28,341 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:28,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:28:28,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 04:28:28,542 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:28,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:28,542 INFO L85 PathProgramCache]: Analyzing trace with hash 81168556, now seen corresponding path program 1 times [2024-11-28 04:28:28,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:28,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790498967] [2024-11-28 04:28:28,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:28,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:28,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [933352780] [2024-11-28 04:28:28,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:28,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:28,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:28,586 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:28,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:28:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:28,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:28:28,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:28,756 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:28:28,757 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:28,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:28,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790498967] [2024-11-28 04:28:28,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:28,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933352780] [2024-11-28 04:28:28,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933352780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:28,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:28,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:28,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780732641] [2024-11-28 04:28:28,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:28,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:28,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:28,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:28,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:28,760 INFO L87 Difference]: Start difference. First operand 272 states and 354 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:28:29,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:29,053 INFO L93 Difference]: Finished difference Result 293 states and 371 transitions. [2024-11-28 04:28:29,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:29,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 50 [2024-11-28 04:28:29,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:29,058 INFO L225 Difference]: With dead ends: 293 [2024-11-28 04:28:29,058 INFO L226 Difference]: Without dead ends: 291 [2024-11-28 04:28:29,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:29,060 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 206 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:29,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 153 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:28:29,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-28 04:28:29,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 273. [2024-11-28 04:28:29,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 190 states have (on average 1.5947368421052632) internal successors, (303), 245 states have internal predecessors, (303), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:29,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 353 transitions. [2024-11-28 04:28:29,080 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 353 transitions. Word has length 50 [2024-11-28 04:28:29,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:29,080 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 353 transitions. [2024-11-28 04:28:29,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:28:29,080 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 353 transitions. [2024-11-28 04:28:29,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 04:28:29,081 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:29,082 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:29,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 04:28:29,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:29,282 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:29,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:29,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1778741978, now seen corresponding path program 1 times [2024-11-28 04:28:29,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:29,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867643578] [2024-11-28 04:28:29,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:29,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:29,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472548960] [2024-11-28 04:28:29,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:29,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:29,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:29,306 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:29,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:28:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:29,358 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:28:29,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:29,414 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:28:29,414 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:29,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:29,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867643578] [2024-11-28 04:28:29,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:29,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472548960] [2024-11-28 04:28:29,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472548960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:29,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:29,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:29,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871799709] [2024-11-28 04:28:29,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:29,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:29,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:29,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:29,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:29,416 INFO L87 Difference]: Start difference. First operand 273 states and 353 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:28:29,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:29,776 INFO L93 Difference]: Finished difference Result 301 states and 360 transitions. [2024-11-28 04:28:29,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:29,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2024-11-28 04:28:29,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:29,778 INFO L225 Difference]: With dead ends: 301 [2024-11-28 04:28:29,778 INFO L226 Difference]: Without dead ends: 299 [2024-11-28 04:28:29,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:29,779 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 126 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:29,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 199 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:28:29,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-28 04:28:29,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 274. [2024-11-28 04:28:29,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 191 states have (on average 1.581151832460733) internal successors, (302), 246 states have internal predecessors, (302), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:29,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 352 transitions. [2024-11-28 04:28:29,799 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 352 transitions. Word has length 51 [2024-11-28 04:28:29,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:29,800 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 352 transitions. [2024-11-28 04:28:29,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:28:29,800 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 352 transitions. [2024-11-28 04:28:29,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-28 04:28:29,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:29,801 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:29,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 04:28:30,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 04:28:30,002 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:30,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:30,002 INFO L85 PathProgramCache]: Analyzing trace with hash 693573614, now seen corresponding path program 1 times [2024-11-28 04:28:30,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:30,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636624463] [2024-11-28 04:28:30,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:30,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:30,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2046094495] [2024-11-28 04:28:30,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:30,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:30,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:30,048 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:30,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:28:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:30,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:28:30,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:30,215 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:28:30,215 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:30,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:30,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636624463] [2024-11-28 04:28:30,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:30,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046094495] [2024-11-28 04:28:30,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046094495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:30,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:30,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:30,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834273620] [2024-11-28 04:28:30,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:30,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:30,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:30,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:30,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:30,218 INFO L87 Difference]: Start difference. First operand 274 states and 352 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:28:30,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:30,839 INFO L93 Difference]: Finished difference Result 301 states and 357 transitions. [2024-11-28 04:28:30,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:30,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2024-11-28 04:28:30,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:30,841 INFO L225 Difference]: With dead ends: 301 [2024-11-28 04:28:30,841 INFO L226 Difference]: Without dead ends: 299 [2024-11-28 04:28:30,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:30,842 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 76 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:30,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 251 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:28:30,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-28 04:28:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 275. [2024-11-28 04:28:30,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 192 states have (on average 1.5677083333333333) internal successors, (301), 247 states have internal predecessors, (301), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:30,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 351 transitions. [2024-11-28 04:28:30,861 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 351 transitions. Word has length 52 [2024-11-28 04:28:30,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:30,862 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 351 transitions. [2024-11-28 04:28:30,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:28:30,862 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 351 transitions. [2024-11-28 04:28:30,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 04:28:30,863 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:30,863 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:30,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 04:28:31,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 04:28:31,064 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:31,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:31,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1166201914, now seen corresponding path program 1 times [2024-11-28 04:28:31,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:31,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042920048] [2024-11-28 04:28:31,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:31,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:31,166 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:28:31,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:31,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042920048] [2024-11-28 04:28:31,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042920048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:31,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:31,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:28:31,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028657800] [2024-11-28 04:28:31,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:31,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:31,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:31,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:31,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:31,170 INFO L87 Difference]: Start difference. First operand 275 states and 351 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 04:28:31,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:31,232 INFO L93 Difference]: Finished difference Result 275 states and 351 transitions. [2024-11-28 04:28:31,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:31,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 59 [2024-11-28 04:28:31,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:31,234 INFO L225 Difference]: With dead ends: 275 [2024-11-28 04:28:31,235 INFO L226 Difference]: Without dead ends: 273 [2024-11-28 04:28:31,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:31,236 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 46 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:31,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 207 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:28:31,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-28 04:28:31,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2024-11-28 04:28:31,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 192 states have (on average 1.5364583333333333) internal successors, (295), 245 states have internal predecessors, (295), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:31,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 345 transitions. [2024-11-28 04:28:31,255 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 345 transitions. Word has length 59 [2024-11-28 04:28:31,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:31,256 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 345 transitions. [2024-11-28 04:28:31,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 04:28:31,256 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 345 transitions. [2024-11-28 04:28:31,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 04:28:31,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:31,258 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:31,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:28:31,259 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:31,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:31,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1792520839, now seen corresponding path program 1 times [2024-11-28 04:28:31,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:31,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016236367] [2024-11-28 04:28:31,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:31,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:31,361 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:28:31,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:31,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016236367] [2024-11-28 04:28:31,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016236367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:31,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:31,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:28:31,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101725165] [2024-11-28 04:28:31,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:31,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:31,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:31,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:31,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:31,363 INFO L87 Difference]: Start difference. First operand 273 states and 345 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 04:28:31,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:31,422 INFO L93 Difference]: Finished difference Result 273 states and 345 transitions. [2024-11-28 04:28:31,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:31,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 60 [2024-11-28 04:28:31,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:31,425 INFO L225 Difference]: With dead ends: 273 [2024-11-28 04:28:31,425 INFO L226 Difference]: Without dead ends: 271 [2024-11-28 04:28:31,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:31,426 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 45 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:31,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 206 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:28:31,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-28 04:28:31,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-28 04:28:31,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 192 states have (on average 1.4947916666666667) internal successors, (287), 243 states have internal predecessors, (287), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:31,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 337 transitions. [2024-11-28 04:28:31,446 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 337 transitions. Word has length 60 [2024-11-28 04:28:31,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:31,446 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 337 transitions. [2024-11-28 04:28:31,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 04:28:31,446 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 337 transitions. [2024-11-28 04:28:31,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 04:28:31,447 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:31,447 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:31,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:28:31,448 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:31,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:31,449 INFO L85 PathProgramCache]: Analyzing trace with hash 266470676, now seen corresponding path program 1 times [2024-11-28 04:28:31,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:31,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544996705] [2024-11-28 04:28:31,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:31,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:31,646 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:28:31,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:31,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544996705] [2024-11-28 04:28:31,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544996705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:31,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:31,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:28:31,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272392327] [2024-11-28 04:28:31,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:31,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:28:31,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:31,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:28:31,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:28:31,648 INFO L87 Difference]: Start difference. First operand 271 states and 337 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:28:32,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:32,191 INFO L93 Difference]: Finished difference Result 272 states and 337 transitions. [2024-11-28 04:28:32,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:28:32,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 61 [2024-11-28 04:28:32,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:32,194 INFO L225 Difference]: With dead ends: 272 [2024-11-28 04:28:32,194 INFO L226 Difference]: Without dead ends: 271 [2024-11-28 04:28:32,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:28:32,195 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 273 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:32,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 161 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:28:32,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-28 04:28:32,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-28 04:28:32,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 192 states have (on average 1.4895833333333333) internal successors, (286), 243 states have internal predecessors, (286), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:32,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 336 transitions. [2024-11-28 04:28:32,216 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 336 transitions. Word has length 61 [2024-11-28 04:28:32,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:32,216 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 336 transitions. [2024-11-28 04:28:32,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:28:32,217 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 336 transitions. [2024-11-28 04:28:32,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 04:28:32,218 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:32,218 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:32,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:28:32,218 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:32,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:32,219 INFO L85 PathProgramCache]: Analyzing trace with hash 266456774, now seen corresponding path program 1 times [2024-11-28 04:28:32,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:32,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719382730] [2024-11-28 04:28:32,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:32,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:32,380 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:28:32,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:32,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719382730] [2024-11-28 04:28:32,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719382730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:32,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:32,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:28:32,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110249291] [2024-11-28 04:28:32,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:32,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:28:32,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:32,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:28:32,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:28:32,383 INFO L87 Difference]: Start difference. First operand 271 states and 336 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:28:32,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:32,910 INFO L93 Difference]: Finished difference Result 274 states and 339 transitions. [2024-11-28 04:28:32,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:28:32,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 61 [2024-11-28 04:28:32,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:32,914 INFO L225 Difference]: With dead ends: 274 [2024-11-28 04:28:32,914 INFO L226 Difference]: Without dead ends: 273 [2024-11-28 04:28:32,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:28:32,915 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 273 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:32,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 161 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:28:32,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-28 04:28:32,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2024-11-28 04:28:32,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 194 states have (on average 1.4845360824742269) internal successors, (288), 245 states have internal predecessors, (288), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:32,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 338 transitions. [2024-11-28 04:28:32,939 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 338 transitions. Word has length 61 [2024-11-28 04:28:32,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:32,940 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 338 transitions. [2024-11-28 04:28:32,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:28:32,940 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 338 transitions. [2024-11-28 04:28:32,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 04:28:32,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:32,941 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:32,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:28:32,942 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:32,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:32,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1328457983, now seen corresponding path program 1 times [2024-11-28 04:28:32,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:32,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803197305] [2024-11-28 04:28:32,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:32,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:33,079 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:28:33,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:33,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803197305] [2024-11-28 04:28:33,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803197305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:33,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:33,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:28:33,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832776591] [2024-11-28 04:28:33,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:33,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:33,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:33,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:33,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:33,081 INFO L87 Difference]: Start difference. First operand 273 states and 338 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:33,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:33,395 INFO L93 Difference]: Finished difference Result 330 states and 406 transitions. [2024-11-28 04:28:33,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:33,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2024-11-28 04:28:33,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:33,398 INFO L225 Difference]: With dead ends: 330 [2024-11-28 04:28:33,398 INFO L226 Difference]: Without dead ends: 326 [2024-11-28 04:28:33,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:33,399 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 43 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:33,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 148 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:28:33,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-28 04:28:33,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 283. [2024-11-28 04:28:33,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 204 states have (on average 1.4656862745098038) internal successors, (299), 255 states have internal predecessors, (299), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:33,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 349 transitions. [2024-11-28 04:28:33,425 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 349 transitions. Word has length 64 [2024-11-28 04:28:33,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:33,426 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 349 transitions. [2024-11-28 04:28:33,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:33,427 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 349 transitions. [2024-11-28 04:28:33,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 04:28:33,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:33,428 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:33,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:28:33,428 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:33,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:33,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1042838488, now seen corresponding path program 1 times [2024-11-28 04:28:33,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:33,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101820458] [2024-11-28 04:28:33,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:33,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:33,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523849629] [2024-11-28 04:28:33,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:33,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:33,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:33,465 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:33,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:28:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:33,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:28:33,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:33,810 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:28:33,811 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:28:34,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:34,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101820458] [2024-11-28 04:28:34,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:34,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523849629] [2024-11-28 04:28:34,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523849629] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:34,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:28:34,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-28 04:28:34,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187416413] [2024-11-28 04:28:34,098 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:28:34,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:34,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:34,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:34,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:28:34,099 INFO L87 Difference]: Start difference. First operand 283 states and 349 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:34,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:34,517 INFO L93 Difference]: Finished difference Result 324 states and 400 transitions. [2024-11-28 04:28:34,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:34,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-28 04:28:34,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:34,520 INFO L225 Difference]: With dead ends: 324 [2024-11-28 04:28:34,520 INFO L226 Difference]: Without dead ends: 322 [2024-11-28 04:28:34,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:28:34,521 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 36 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:34,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 186 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:28:34,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-28 04:28:34,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 284. [2024-11-28 04:28:34,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 205 states have (on average 1.4585365853658536) internal successors, (299), 256 states have internal predecessors, (299), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:34,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 349 transitions. [2024-11-28 04:28:34,549 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 349 transitions. Word has length 66 [2024-11-28 04:28:34,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:34,550 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 349 transitions. [2024-11-28 04:28:34,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:34,550 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 349 transitions. [2024-11-28 04:28:34,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 04:28:34,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:34,551 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:34,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 04:28:34,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:34,756 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:34,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:34,756 INFO L85 PathProgramCache]: Analyzing trace with hash -2031745190, now seen corresponding path program 1 times [2024-11-28 04:28:34,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:34,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119781087] [2024-11-28 04:28:34,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:34,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:34,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1826977776] [2024-11-28 04:28:34,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:34,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:34,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:34,784 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:34,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:28:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:34,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:28:34,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:35,120 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:28:35,120 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:28:35,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:35,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119781087] [2024-11-28 04:28:35,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:35,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826977776] [2024-11-28 04:28:35,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826977776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:35,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:28:35,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-28 04:28:35,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041410866] [2024-11-28 04:28:35,367 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:28:35,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:35,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:35,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:35,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:28:35,368 INFO L87 Difference]: Start difference. First operand 284 states and 349 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:35,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:35,813 INFO L93 Difference]: Finished difference Result 324 states and 398 transitions. [2024-11-28 04:28:35,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:35,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2024-11-28 04:28:35,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:35,816 INFO L225 Difference]: With dead ends: 324 [2024-11-28 04:28:35,816 INFO L226 Difference]: Without dead ends: 322 [2024-11-28 04:28:35,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:28:35,817 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 36 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:35,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 188 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:28:35,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-28 04:28:35,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 285. [2024-11-28 04:28:35,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 206 states have (on average 1.4514563106796117) internal successors, (299), 257 states have internal predecessors, (299), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:35,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 349 transitions. [2024-11-28 04:28:35,839 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 349 transitions. Word has length 67 [2024-11-28 04:28:35,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:35,840 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 349 transitions. [2024-11-28 04:28:35,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:35,840 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 349 transitions. [2024-11-28 04:28:35,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 04:28:35,841 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:35,841 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:35,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:28:36,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:36,042 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:36,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:36,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1253198940, now seen corresponding path program 1 times [2024-11-28 04:28:36,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:36,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414437025] [2024-11-28 04:28:36,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:36,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:36,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887257880] [2024-11-28 04:28:36,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:36,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:36,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:36,072 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:36,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:28:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:36,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:28:36,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:36,225 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-28 04:28:36,225 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:36,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:36,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414437025] [2024-11-28 04:28:36,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:36,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887257880] [2024-11-28 04:28:36,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887257880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:36,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:36,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:36,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436337890] [2024-11-28 04:28:36,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:36,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:36,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:36,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:36,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:36,228 INFO L87 Difference]: Start difference. First operand 285 states and 349 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:36,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:36,641 INFO L93 Difference]: Finished difference Result 337 states and 396 transitions. [2024-11-28 04:28:36,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:36,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-11-28 04:28:36,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:36,643 INFO L225 Difference]: With dead ends: 337 [2024-11-28 04:28:36,643 INFO L226 Difference]: Without dead ends: 336 [2024-11-28 04:28:36,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:36,645 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 109 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:36,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 166 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:28:36,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-28 04:28:36,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 285. [2024-11-28 04:28:36,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 206 states have (on average 1.4466019417475728) internal successors, (298), 257 states have internal predecessors, (298), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:36,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 348 transitions. [2024-11-28 04:28:36,668 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 348 transitions. Word has length 70 [2024-11-28 04:28:36,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:36,669 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 348 transitions. [2024-11-28 04:28:36,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:36,669 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 348 transitions. [2024-11-28 04:28:36,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 04:28:36,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:36,670 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:36,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-28 04:28:36,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:36,871 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:36,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:36,871 INFO L85 PathProgramCache]: Analyzing trace with hash 2050031118, now seen corresponding path program 1 times [2024-11-28 04:28:36,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:36,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660537952] [2024-11-28 04:28:36,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:36,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:37,055 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:28:37,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:37,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660537952] [2024-11-28 04:28:37,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660537952] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:37,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753427939] [2024-11-28 04:28:37,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:37,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:37,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:37,058 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:37,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:28:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:37,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:28:37,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:37,410 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:28:37,410 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:37,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753427939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:37,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:28:37,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 04:28:37,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235470001] [2024-11-28 04:28:37,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:37,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:37,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:37,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:37,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:28:37,413 INFO L87 Difference]: Start difference. First operand 285 states and 348 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:28:38,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:38,119 INFO L93 Difference]: Finished difference Result 321 states and 395 transitions. [2024-11-28 04:28:38,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:28:38,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 72 [2024-11-28 04:28:38,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:38,122 INFO L225 Difference]: With dead ends: 321 [2024-11-28 04:28:38,122 INFO L226 Difference]: Without dead ends: 320 [2024-11-28 04:28:38,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:28:38,124 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 62 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:38,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 135 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:28:38,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-28 04:28:38,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 286. [2024-11-28 04:28:38,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 207 states have (on average 1.4396135265700483) internal successors, (298), 258 states have internal predecessors, (298), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:38,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 348 transitions. [2024-11-28 04:28:38,149 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 348 transitions. Word has length 72 [2024-11-28 04:28:38,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:38,150 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 348 transitions. [2024-11-28 04:28:38,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:28:38,150 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 348 transitions. [2024-11-28 04:28:38,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 04:28:38,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:38,151 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:38,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-28 04:28:38,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:38,352 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:38,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:38,353 INFO L85 PathProgramCache]: Analyzing trace with hash 194461534, now seen corresponding path program 1 times [2024-11-28 04:28:38,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:38,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366878503] [2024-11-28 04:28:38,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:38,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:38,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41992098] [2024-11-28 04:28:38,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:38,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:38,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:38,383 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:38,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:28:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:38,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:28:38,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:38,590 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 04:28:38,590 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:38,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:38,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366878503] [2024-11-28 04:28:38,591 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:38,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41992098] [2024-11-28 04:28:38,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41992098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:38,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:38,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:38,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239834190] [2024-11-28 04:28:38,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:38,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:38,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:38,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:38,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:38,594 INFO L87 Difference]: Start difference. First operand 286 states and 348 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:39,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:39,024 INFO L93 Difference]: Finished difference Result 339 states and 393 transitions. [2024-11-28 04:28:39,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:39,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2024-11-28 04:28:39,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:39,027 INFO L225 Difference]: With dead ends: 339 [2024-11-28 04:28:39,027 INFO L226 Difference]: Without dead ends: 336 [2024-11-28 04:28:39,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:39,028 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 109 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:39,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 170 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:28:39,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-28 04:28:39,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 289. [2024-11-28 04:28:39,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 210 states have (on average 1.4333333333333333) internal successors, (301), 261 states have internal predecessors, (301), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:39,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 351 transitions. [2024-11-28 04:28:39,050 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 351 transitions. Word has length 71 [2024-11-28 04:28:39,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:39,051 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 351 transitions. [2024-11-28 04:28:39,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:28:39,051 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 351 transitions. [2024-11-28 04:28:39,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 04:28:39,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:39,053 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:39,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 04:28:39,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:39,254 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:39,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:39,254 INFO L85 PathProgramCache]: Analyzing trace with hash -873544638, now seen corresponding path program 1 times [2024-11-28 04:28:39,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:39,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311963063] [2024-11-28 04:28:39,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:39,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:28:39,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:39,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311963063] [2024-11-28 04:28:39,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311963063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:39,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318942909] [2024-11-28 04:28:39,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:39,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:39,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:39,424 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:39,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:28:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:39,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:28:39,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:39,761 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:28:39,762 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:39,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318942909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:39,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:28:39,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 04:28:39,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410746782] [2024-11-28 04:28:39,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:39,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:39,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:39,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:39,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:28:39,764 INFO L87 Difference]: Start difference. First operand 289 states and 351 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:28:40,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:40,440 INFO L93 Difference]: Finished difference Result 321 states and 390 transitions. [2024-11-28 04:28:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:40,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 73 [2024-11-28 04:28:40,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:40,443 INFO L225 Difference]: With dead ends: 321 [2024-11-28 04:28:40,443 INFO L226 Difference]: Without dead ends: 320 [2024-11-28 04:28:40,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:28:40,444 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 59 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:40,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 143 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:28:40,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-28 04:28:40,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 290. [2024-11-28 04:28:40,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 211 states have (on average 1.4265402843601895) internal successors, (301), 262 states have internal predecessors, (301), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:28:40,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 351 transitions. [2024-11-28 04:28:40,465 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 351 transitions. Word has length 73 [2024-11-28 04:28:40,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:40,465 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 351 transitions. [2024-11-28 04:28:40,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:28:40,465 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 351 transitions. [2024-11-28 04:28:40,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 04:28:40,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:40,466 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:40,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-28 04:28:40,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:40,671 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:40,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:40,671 INFO L85 PathProgramCache]: Analyzing trace with hash 978192934, now seen corresponding path program 1 times [2024-11-28 04:28:40,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:40,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623619306] [2024-11-28 04:28:40,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:40,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:40,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [952830067] [2024-11-28 04:28:40,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:40,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:40,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:40,696 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:40,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:28:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:40,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:28:40,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:41,381 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:28:41,381 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:28:41,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:41,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623619306] [2024-11-28 04:28:41,633 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:41,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952830067] [2024-11-28 04:28:41,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952830067] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:41,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:28:41,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:28:41,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821812611] [2024-11-28 04:28:41,634 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:28:41,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:28:41,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:41,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:28:41,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:28:41,635 INFO L87 Difference]: Start difference. First operand 290 states and 351 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:28:42,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:42,936 INFO L93 Difference]: Finished difference Result 452 states and 581 transitions. [2024-11-28 04:28:42,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:28:42,936 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 77 [2024-11-28 04:28:42,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:42,939 INFO L225 Difference]: With dead ends: 452 [2024-11-28 04:28:42,939 INFO L226 Difference]: Without dead ends: 450 [2024-11-28 04:28:42,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:28:42,942 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 415 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:42,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 366 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:28:42,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-28 04:28:42,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 358. [2024-11-28 04:28:42,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 271 states have (on average 1.4649446494464944) internal successors, (397), 322 states have internal predecessors, (397), 33 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 04:28:42,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 463 transitions. [2024-11-28 04:28:42,977 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 463 transitions. Word has length 77 [2024-11-28 04:28:42,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:42,977 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 463 transitions. [2024-11-28 04:28:42,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:28:42,978 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 463 transitions. [2024-11-28 04:28:42,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 04:28:42,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:42,979 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:42,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 04:28:43,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:43,183 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:43,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:43,184 INFO L85 PathProgramCache]: Analyzing trace with hash 259209945, now seen corresponding path program 1 times [2024-11-28 04:28:43,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:43,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771500336] [2024-11-28 04:28:43,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:43,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:43,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1974384367] [2024-11-28 04:28:43,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:43,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:43,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:43,208 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:43,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:28:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:43,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:28:43,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:43,846 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:28:43,847 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:28:46,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:46,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771500336] [2024-11-28 04:28:46,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:46,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974384367] [2024-11-28 04:28:46,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974384367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:46,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:28:46,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:28:46,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238680254] [2024-11-28 04:28:46,818 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:28:46,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:28:46,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:46,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:28:46,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=101, Unknown=1, NotChecked=0, Total=132 [2024-11-28 04:28:46,820 INFO L87 Difference]: Start difference. First operand 358 states and 463 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:28:48,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:48,521 INFO L93 Difference]: Finished difference Result 471 states and 610 transitions. [2024-11-28 04:28:48,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:28:48,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 78 [2024-11-28 04:28:48,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:48,524 INFO L225 Difference]: With dead ends: 471 [2024-11-28 04:28:48,524 INFO L226 Difference]: Without dead ends: 464 [2024-11-28 04:28:48,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=97, Invalid=244, Unknown=1, NotChecked=0, Total=342 [2024-11-28 04:28:48,525 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 426 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:48,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 361 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:28:48,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-28 04:28:48,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 417. [2024-11-28 04:28:48,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 324 states have (on average 1.4969135802469136) internal successors, (485), 375 states have internal predecessors, (485), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 04:28:48,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 563 transitions. [2024-11-28 04:28:48,564 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 563 transitions. Word has length 78 [2024-11-28 04:28:48,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:48,564 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 563 transitions. [2024-11-28 04:28:48,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:28:48,565 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 563 transitions. [2024-11-28 04:28:48,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 04:28:48,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:48,566 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:48,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-28 04:28:48,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 04:28:48,770 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:48,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:48,771 INFO L85 PathProgramCache]: Analyzing trace with hash -554426232, now seen corresponding path program 1 times [2024-11-28 04:28:48,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:48,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252173818] [2024-11-28 04:28:48,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:48,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:48,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073560660] [2024-11-28 04:28:48,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:48,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:48,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:48,794 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:48,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:28:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:48,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:28:48,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:49,521 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:28:49,521 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:28:49,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:49,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252173818] [2024-11-28 04:28:49,738 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:49,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073560660] [2024-11-28 04:28:49,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073560660] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:49,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:28:49,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:28:49,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471269293] [2024-11-28 04:28:49,738 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:28:49,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:28:49,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:49,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:28:49,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:28:49,739 INFO L87 Difference]: Start difference. First operand 417 states and 563 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:28:50,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:50,941 INFO L93 Difference]: Finished difference Result 463 states and 596 transitions. [2024-11-28 04:28:50,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:28:50,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 79 [2024-11-28 04:28:50,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:50,944 INFO L225 Difference]: With dead ends: 463 [2024-11-28 04:28:50,944 INFO L226 Difference]: Without dead ends: 457 [2024-11-28 04:28:50,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:28:50,946 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 443 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:50,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 246 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:28:50,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-28 04:28:50,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 415. [2024-11-28 04:28:50,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 322 states have (on average 1.4565217391304348) internal successors, (469), 373 states have internal predecessors, (469), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 04:28:50,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 547 transitions. [2024-11-28 04:28:50,981 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 547 transitions. Word has length 79 [2024-11-28 04:28:50,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:50,982 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 547 transitions. [2024-11-28 04:28:50,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:28:50,982 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 547 transitions. [2024-11-28 04:28:50,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 04:28:50,983 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:50,983 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:50,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-28 04:28:51,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 04:28:51,188 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:51,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:51,188 INFO L85 PathProgramCache]: Analyzing trace with hash -7343941, now seen corresponding path program 1 times [2024-11-28 04:28:51,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:51,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128573877] [2024-11-28 04:28:51,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:51,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:51,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918922656] [2024-11-28 04:28:51,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:51,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:51,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:51,207 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:51,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:28:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:51,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:28:51,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:51,872 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:28:51,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:28:52,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:52,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128573877] [2024-11-28 04:28:52,168 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:52,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918922656] [2024-11-28 04:28:52,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918922656] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:52,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:28:52,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:28:52,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754253161] [2024-11-28 04:28:52,168 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:28:52,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:28:52,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:52,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:28:52,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:28:52,170 INFO L87 Difference]: Start difference. First operand 415 states and 547 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:28:53,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:53,190 INFO L93 Difference]: Finished difference Result 516 states and 681 transitions. [2024-11-28 04:28:53,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:28:53,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 80 [2024-11-28 04:28:53,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:53,192 INFO L225 Difference]: With dead ends: 516 [2024-11-28 04:28:53,193 INFO L226 Difference]: Without dead ends: 514 [2024-11-28 04:28:53,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:28:53,194 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 470 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:53,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 256 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:28:53,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-28 04:28:53,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 449. [2024-11-28 04:28:53,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 352 states have (on average 1.4517045454545454) internal successors, (511), 403 states have internal predecessors, (511), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-28 04:28:53,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 597 transitions. [2024-11-28 04:28:53,232 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 597 transitions. Word has length 80 [2024-11-28 04:28:53,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:53,233 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 597 transitions. [2024-11-28 04:28:53,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:28:53,233 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 597 transitions. [2024-11-28 04:28:53,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 04:28:53,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:53,234 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:53,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 04:28:53,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 04:28:53,453 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:53,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:53,453 INFO L85 PathProgramCache]: Analyzing trace with hash -227662102, now seen corresponding path program 1 times [2024-11-28 04:28:53,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:53,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717419651] [2024-11-28 04:28:53,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:53,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:53,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621517096] [2024-11-28 04:28:53,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:53,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:53,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:53,473 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:53,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:28:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:53,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:28:53,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:54,505 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:28:54,505 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:28:54,920 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:28:54,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:54,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717419651] [2024-11-28 04:28:54,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:28:54,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621517096] [2024-11-28 04:28:54,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621517096] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:28:54,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:28:54,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2024-11-28 04:28:54,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558463876] [2024-11-28 04:28:54,921 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:28:54,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:28:54,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:54,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:28:54,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:28:54,922 INFO L87 Difference]: Start difference. First operand 449 states and 597 transitions. Second operand has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:28:57,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:57,526 INFO L93 Difference]: Finished difference Result 567 states and 766 transitions. [2024-11-28 04:28:57,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:28:57,527 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) Word has length 81 [2024-11-28 04:28:57,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:57,528 INFO L225 Difference]: With dead ends: 567 [2024-11-28 04:28:57,528 INFO L226 Difference]: Without dead ends: 561 [2024-11-28 04:28:57,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=149, Invalid=357, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:28:57,529 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 721 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:57,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 276 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 04:28:57,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-11-28 04:28:57,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 519. [2024-11-28 04:28:57,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 418 states have (on average 1.4162679425837321) internal successors, (592), 468 states have internal predecessors, (592), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:28:57,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 688 transitions. [2024-11-28 04:28:57,580 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 688 transitions. Word has length 81 [2024-11-28 04:28:57,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:57,581 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 688 transitions. [2024-11-28 04:28:57,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:28:57,581 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 688 transitions. [2024-11-28 04:28:57,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:28:57,582 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:57,582 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:57,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 04:28:57,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 04:28:57,783 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:28:57,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:57,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1351580398, now seen corresponding path program 1 times [2024-11-28 04:28:57,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:57,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524573382] [2024-11-28 04:28:57,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:57,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:28:57,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [386624407] [2024-11-28 04:28:57,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:57,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:57,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:57,803 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:57,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:28:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:57,865 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:28:57,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:58,450 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 04:28:58,450 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:01,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:01,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524573382] [2024-11-28 04:29:01,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:29:01,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386624407] [2024-11-28 04:29:01,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386624407] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:01,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:29:01,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:29:01,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502088699] [2024-11-28 04:29:01,401 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:01,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:29:01,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:01,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:29:01,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=139, Unknown=1, NotChecked=0, Total=182 [2024-11-28 04:29:01,402 INFO L87 Difference]: Start difference. First operand 519 states and 688 transitions. Second operand has 10 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 04:29:02,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:02,469 INFO L93 Difference]: Finished difference Result 653 states and 880 transitions. [2024-11-28 04:29:02,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:29:02,470 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 88 [2024-11-28 04:29:02,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:02,473 INFO L225 Difference]: With dead ends: 653 [2024-11-28 04:29:02,473 INFO L226 Difference]: Without dead ends: 651 [2024-11-28 04:29:02,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=95, Invalid=246, Unknown=1, NotChecked=0, Total=342 [2024-11-28 04:29:02,475 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 260 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:02,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 397 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:29:02,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-28 04:29:02,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 620. [2024-11-28 04:29:02,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 508 states have (on average 1.4409448818897639) internal successors, (732), 558 states have internal predecessors, (732), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 04:29:02,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 850 transitions. [2024-11-28 04:29:02,553 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 850 transitions. Word has length 88 [2024-11-28 04:29:02,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:02,553 INFO L471 AbstractCegarLoop]: Abstraction has 620 states and 850 transitions. [2024-11-28 04:29:02,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 04:29:02,553 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 850 transitions. [2024-11-28 04:29:02,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 04:29:02,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:02,555 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:02,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-28 04:29:02,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:02,755 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:02,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:02,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1050680546, now seen corresponding path program 1 times [2024-11-28 04:29:02,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:02,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623768948] [2024-11-28 04:29:02,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:02,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:29:02,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1012150059] [2024-11-28 04:29:02,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:02,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:02,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:02,784 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:02,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 04:29:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:02,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:29:02,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:03,427 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 6 proven. 22 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 04:29:03,427 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:05,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:05,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623768948] [2024-11-28 04:29:05,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:29:05,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012150059] [2024-11-28 04:29:05,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012150059] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:05,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:29:05,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:29:05,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84713983] [2024-11-28 04:29:05,284 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:05,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:29:05,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:05,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:29:05,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:29:05,286 INFO L87 Difference]: Start difference. First operand 620 states and 850 transitions. Second operand has 10 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 04:29:06,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:06,870 INFO L93 Difference]: Finished difference Result 655 states and 883 transitions. [2024-11-28 04:29:06,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:29:06,871 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 89 [2024-11-28 04:29:06,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:06,873 INFO L225 Difference]: With dead ends: 655 [2024-11-28 04:29:06,873 INFO L226 Difference]: Without dead ends: 648 [2024-11-28 04:29:06,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=162, Invalid=390, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:29:06,873 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 575 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:06,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 326 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:29:06,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2024-11-28 04:29:06,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 614. [2024-11-28 04:29:06,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 508 states have (on average 1.4074803149606299) internal successors, (715), 552 states have internal predecessors, (715), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 04:29:06,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 833 transitions. [2024-11-28 04:29:06,942 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 833 transitions. Word has length 89 [2024-11-28 04:29:06,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:06,943 INFO L471 AbstractCegarLoop]: Abstraction has 614 states and 833 transitions. [2024-11-28 04:29:06,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 04:29:06,943 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 833 transitions. [2024-11-28 04:29:06,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:29:06,944 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:06,945 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:06,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-28 04:29:07,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:07,146 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:07,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:07,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1788641520, now seen corresponding path program 1 times [2024-11-28 04:29:07,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:07,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984654414] [2024-11-28 04:29:07,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:07,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:29:07,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1210904246] [2024-11-28 04:29:07,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:07,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:07,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:07,175 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:07,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:29:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:07,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:29:07,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:07,680 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 04:29:07,680 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:07,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:07,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984654414] [2024-11-28 04:29:07,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:29:07,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210904246] [2024-11-28 04:29:07,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210904246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:07,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:29:07,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:29:07,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826488079] [2024-11-28 04:29:07,838 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:07,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:29:07,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:07,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:29:07,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:29:07,839 INFO L87 Difference]: Start difference. First operand 614 states and 833 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:29:08,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:08,167 INFO L93 Difference]: Finished difference Result 614 states and 833 transitions. [2024-11-28 04:29:08,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:29:08,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 90 [2024-11-28 04:29:08,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:08,170 INFO L225 Difference]: With dead ends: 614 [2024-11-28 04:29:08,170 INFO L226 Difference]: Without dead ends: 608 [2024-11-28 04:29:08,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:29:08,173 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 101 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:08,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 167 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:29:08,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-28 04:29:08,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 535. [2024-11-28 04:29:08,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 442 states have (on average 1.339366515837104) internal successors, (592), 480 states have internal predecessors, (592), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:29:08,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 696 transitions. [2024-11-28 04:29:08,254 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 696 transitions. Word has length 90 [2024-11-28 04:29:08,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:08,255 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 696 transitions. [2024-11-28 04:29:08,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:29:08,255 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 696 transitions. [2024-11-28 04:29:08,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 04:29:08,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:08,257 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:08,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 04:29:08,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:08,458 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:08,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:08,458 INFO L85 PathProgramCache]: Analyzing trace with hash -386687648, now seen corresponding path program 1 times [2024-11-28 04:29:08,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:08,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419867009] [2024-11-28 04:29:08,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:08,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:29:08,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936863461] [2024-11-28 04:29:08,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:08,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:08,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:08,477 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:08,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 04:29:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:08,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:29:08,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:09,006 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 04:29:09,006 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:09,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:09,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419867009] [2024-11-28 04:29:09,319 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:29:09,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936863461] [2024-11-28 04:29:09,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936863461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:09,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:29:09,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:29:09,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978840763] [2024-11-28 04:29:09,319 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:09,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:29:09,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:09,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:29:09,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:29:09,320 INFO L87 Difference]: Start difference. First operand 535 states and 696 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:29:09,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:09,797 INFO L93 Difference]: Finished difference Result 639 states and 838 transitions. [2024-11-28 04:29:09,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:29:09,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 91 [2024-11-28 04:29:09,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:09,801 INFO L225 Difference]: With dead ends: 639 [2024-11-28 04:29:09,801 INFO L226 Difference]: Without dead ends: 637 [2024-11-28 04:29:09,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:29:09,802 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 227 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:09,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 263 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:29:09,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-11-28 04:29:09,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 589. [2024-11-28 04:29:09,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 490 states have (on average 1.3653061224489795) internal successors, (669), 528 states have internal predecessors, (669), 58 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-28 04:29:09,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 785 transitions. [2024-11-28 04:29:09,866 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 785 transitions. Word has length 91 [2024-11-28 04:29:09,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:09,866 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 785 transitions. [2024-11-28 04:29:09,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:29:09,866 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 785 transitions. [2024-11-28 04:29:09,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 04:29:09,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:09,867 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:09,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-28 04:29:10,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-28 04:29:10,072 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:10,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:10,072 INFO L85 PathProgramCache]: Analyzing trace with hash 897584882, now seen corresponding path program 1 times [2024-11-28 04:29:10,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:10,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017933954] [2024-11-28 04:29:10,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:10,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:29:10,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1953021185] [2024-11-28 04:29:10,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:10,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:10,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:10,101 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:10,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:29:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:10,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:29:10,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:10,897 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:29:10,897 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:11,425 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:29:11,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:11,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017933954] [2024-11-28 04:29:11,426 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:29:11,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953021185] [2024-11-28 04:29:11,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953021185] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:29:11,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:29:11,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-28 04:29:11,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317966811] [2024-11-28 04:29:11,427 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:11,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:29:11,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:11,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:29:11,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:29:11,428 INFO L87 Difference]: Start difference. First operand 589 states and 785 transitions. Second operand has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 04:29:13,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:13,568 INFO L93 Difference]: Finished difference Result 662 states and 883 transitions. [2024-11-28 04:29:13,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:29:13,569 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 92 [2024-11-28 04:29:13,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:13,572 INFO L225 Difference]: With dead ends: 662 [2024-11-28 04:29:13,572 INFO L226 Difference]: Without dead ends: 631 [2024-11-28 04:29:13,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:29:13,573 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 671 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:13,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 198 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:29:13,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-28 04:29:13,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 610. [2024-11-28 04:29:13,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 511 states have (on average 1.3718199608610568) internal successors, (701), 548 states have internal predecessors, (701), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 04:29:13,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 819 transitions. [2024-11-28 04:29:13,634 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 819 transitions. Word has length 92 [2024-11-28 04:29:13,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:13,635 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 819 transitions. [2024-11-28 04:29:13,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 04:29:13,635 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 819 transitions. [2024-11-28 04:29:13,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 04:29:13,636 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:13,636 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:13,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 04:29:13,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-28 04:29:13,840 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:13,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:13,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2055327650, now seen corresponding path program 1 times [2024-11-28 04:29:13,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:13,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775983907] [2024-11-28 04:29:13,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:13,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:29:13,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1110113092] [2024-11-28 04:29:13,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:13,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:13,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:13,859 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:13,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 04:29:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:13,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:29:13,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:14,644 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 38 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:29:14,644 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:15,564 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 38 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:29:15,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:15,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775983907] [2024-11-28 04:29:15,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:29:15,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110113092] [2024-11-28 04:29:15,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110113092] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:29:15,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:29:15,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 18 [2024-11-28 04:29:15,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45718038] [2024-11-28 04:29:15,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:15,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:29:15,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:15,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:29:15,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:29:15,567 INFO L87 Difference]: Start difference. First operand 610 states and 819 transitions. Second operand has 19 states, 16 states have (on average 6.8125) internal successors, (109), 15 states have internal predecessors, (109), 10 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-28 04:29:22,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:29:23,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:23,291 INFO L93 Difference]: Finished difference Result 765 states and 1046 transitions. [2024-11-28 04:29:23,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:29:23,291 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 6.8125) internal successors, (109), 15 states have internal predecessors, (109), 10 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) Word has length 93 [2024-11-28 04:29:23,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:23,293 INFO L225 Difference]: With dead ends: 765 [2024-11-28 04:29:23,294 INFO L226 Difference]: Without dead ends: 763 [2024-11-28 04:29:23,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=181, Invalid=575, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:29:23,295 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 1105 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:23,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 401 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-28 04:29:23,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-28 04:29:23,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 676. [2024-11-28 04:29:23,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 572 states have (on average 1.3881118881118881) internal successors, (794), 608 states have internal predecessors, (794), 65 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 04:29:23,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 924 transitions. [2024-11-28 04:29:23,359 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 924 transitions. Word has length 93 [2024-11-28 04:29:23,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:23,359 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 924 transitions. [2024-11-28 04:29:23,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 6.8125) internal successors, (109), 15 states have internal predecessors, (109), 10 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-28 04:29:23,360 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 924 transitions. [2024-11-28 04:29:23,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 04:29:23,360 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:23,360 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:23,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-28 04:29:23,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-28 04:29:23,562 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:23,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:23,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1317502574, now seen corresponding path program 1 times [2024-11-28 04:29:23,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:23,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480629683] [2024-11-28 04:29:23,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:23,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:23,734 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:23,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:23,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480629683] [2024-11-28 04:29:23,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480629683] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:23,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341781314] [2024-11-28 04:29:23,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:23,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:23,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:23,737 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:23,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:29:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:23,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:29:23,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:24,145 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:24,146 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:24,391 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:24,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341781314] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:29:24,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:29:24,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-28 04:29:24,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393025855] [2024-11-28 04:29:24,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:24,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:29:24,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:24,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:29:24,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:29:24,395 INFO L87 Difference]: Start difference. First operand 676 states and 924 transitions. Second operand has 13 states, 12 states have (on average 13.25) internal successors, (159), 13 states have internal predecessors, (159), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-28 04:29:25,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:25,906 INFO L93 Difference]: Finished difference Result 1237 states and 1687 transitions. [2024-11-28 04:29:25,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-28 04:29:25,906 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 13.25) internal successors, (159), 13 states have internal predecessors, (159), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 102 [2024-11-28 04:29:25,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:25,910 INFO L225 Difference]: With dead ends: 1237 [2024-11-28 04:29:25,911 INFO L226 Difference]: Without dead ends: 1236 [2024-11-28 04:29:25,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:29:25,912 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 703 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:25,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 660 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:29:25,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2024-11-28 04:29:26,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 930. [2024-11-28 04:29:26,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 800 states have (on average 1.44625) internal successors, (1157), 836 states have internal predecessors, (1157), 91 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-28 04:29:26,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1339 transitions. [2024-11-28 04:29:26,008 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1339 transitions. Word has length 102 [2024-11-28 04:29:26,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:26,008 INFO L471 AbstractCegarLoop]: Abstraction has 930 states and 1339 transitions. [2024-11-28 04:29:26,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 13.25) internal successors, (159), 13 states have internal predecessors, (159), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-28 04:29:26,009 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1339 transitions. [2024-11-28 04:29:26,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 04:29:26,009 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:26,010 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:26,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-28 04:29:26,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-28 04:29:26,210 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:26,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:26,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1383490030, now seen corresponding path program 1 times [2024-11-28 04:29:26,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:26,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120398087] [2024-11-28 04:29:26,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:26,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:26,345 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:26,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:26,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120398087] [2024-11-28 04:29:26,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120398087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:26,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369842875] [2024-11-28 04:29:26,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:26,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:26,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:26,348 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:26,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 04:29:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:26,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:29:26,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:26,675 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:26,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:26,917 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:26,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369842875] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:29:26,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:29:26,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-28 04:29:26,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127966134] [2024-11-28 04:29:26,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:26,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:29:26,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:26,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:29:26,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:29:26,921 INFO L87 Difference]: Start difference. First operand 930 states and 1339 transitions. Second operand has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 14 states have internal predecessors, (160), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-28 04:29:28,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:28,167 INFO L93 Difference]: Finished difference Result 1212 states and 1694 transitions. [2024-11-28 04:29:28,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-28 04:29:28,168 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 14 states have internal predecessors, (160), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 102 [2024-11-28 04:29:28,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:28,174 INFO L225 Difference]: With dead ends: 1212 [2024-11-28 04:29:28,174 INFO L226 Difference]: Without dead ends: 1211 [2024-11-28 04:29:28,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=572, Invalid=1498, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 04:29:28,176 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 1377 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:28,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 478 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:29:28,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2024-11-28 04:29:28,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 995. [2024-11-28 04:29:28,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 858 states have (on average 1.4487179487179487) internal successors, (1243), 894 states have internal predecessors, (1243), 98 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-28 04:29:28,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1439 transitions. [2024-11-28 04:29:28,322 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1439 transitions. Word has length 102 [2024-11-28 04:29:28,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:28,323 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1439 transitions. [2024-11-28 04:29:28,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 14 states have internal predecessors, (160), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-28 04:29:28,323 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1439 transitions. [2024-11-28 04:29:28,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 04:29:28,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:28,324 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:28,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 04:29:28,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-28 04:29:28,525 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:28,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:28,525 INFO L85 PathProgramCache]: Analyzing trace with hash 2107524241, now seen corresponding path program 1 times [2024-11-28 04:29:28,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:28,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428195847] [2024-11-28 04:29:28,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:28,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:28,644 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:28,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:28,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428195847] [2024-11-28 04:29:28,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428195847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:28,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385489762] [2024-11-28 04:29:28,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:28,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:28,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:28,647 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:28,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:29:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:28,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:29:28,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:29,007 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:29,007 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:29,212 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:29,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385489762] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:29:29,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:29:29,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-28 04:29:29,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886190604] [2024-11-28 04:29:29,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:29,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:29:29,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:29,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:29:29,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:29:29,214 INFO L87 Difference]: Start difference. First operand 995 states and 1439 transitions. Second operand has 8 states, 7 states have (on average 22.714285714285715) internal successors, (159), 8 states have internal predecessors, (159), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:29:29,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:29,928 INFO L93 Difference]: Finished difference Result 1531 states and 2218 transitions. [2024-11-28 04:29:29,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:29:29,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 22.714285714285715) internal successors, (159), 8 states have internal predecessors, (159), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 103 [2024-11-28 04:29:29,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:29,935 INFO L225 Difference]: With dead ends: 1531 [2024-11-28 04:29:29,935 INFO L226 Difference]: Without dead ends: 1529 [2024-11-28 04:29:29,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:29:29,936 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 292 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:29,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 328 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:29:29,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2024-11-28 04:29:30,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1261. [2024-11-28 04:29:30,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 1097 states have (on average 1.4612579762989972) internal successors, (1603), 1133 states have internal predecessors, (1603), 125 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-28 04:29:30,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1853 transitions. [2024-11-28 04:29:30,126 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1853 transitions. Word has length 103 [2024-11-28 04:29:30,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:30,126 INFO L471 AbstractCegarLoop]: Abstraction has 1261 states and 1853 transitions. [2024-11-28 04:29:30,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 22.714285714285715) internal successors, (159), 8 states have internal predecessors, (159), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:29:30,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1853 transitions. [2024-11-28 04:29:30,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 04:29:30,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:30,128 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:30,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-28 04:29:30,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 04:29:30,329 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:30,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:30,330 INFO L85 PathProgramCache]: Analyzing trace with hash 631255205, now seen corresponding path program 1 times [2024-11-28 04:29:30,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:30,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335331230] [2024-11-28 04:29:30,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:30,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:30,461 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:30,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:30,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335331230] [2024-11-28 04:29:30,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335331230] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:30,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961069804] [2024-11-28 04:29:30,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:30,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:30,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:30,464 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:30,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 04:29:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:30,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:29:30,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:30,828 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:30,829 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:31,021 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:31,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961069804] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:29:31,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:29:31,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-28 04:29:31,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272753922] [2024-11-28 04:29:31,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:31,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:29:31,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:31,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:29:31,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:29:31,023 INFO L87 Difference]: Start difference. First operand 1261 states and 1853 transitions. Second operand has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:29:31,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:31,820 INFO L93 Difference]: Finished difference Result 1798 states and 2645 transitions. [2024-11-28 04:29:31,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:29:31,820 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 105 [2024-11-28 04:29:31,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:31,827 INFO L225 Difference]: With dead ends: 1798 [2024-11-28 04:29:31,827 INFO L226 Difference]: Without dead ends: 1796 [2024-11-28 04:29:31,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:29:31,829 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 372 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:31,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 282 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:29:31,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2024-11-28 04:29:32,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1449. [2024-11-28 04:29:32,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1266 states have (on average 1.4565560821484993) internal successors, (1844), 1302 states have internal predecessors, (1844), 144 states have call successors, (144), 2 states have call predecessors, (144), 2 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-28 04:29:32,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 2132 transitions. [2024-11-28 04:29:32,022 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 2132 transitions. Word has length 105 [2024-11-28 04:29:32,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:32,022 INFO L471 AbstractCegarLoop]: Abstraction has 1449 states and 2132 transitions. [2024-11-28 04:29:32,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:29:32,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 2132 transitions. [2024-11-28 04:29:32,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 04:29:32,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:32,024 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:32,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-28 04:29:32,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-28 04:29:32,225 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:32,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:32,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1720305254, now seen corresponding path program 1 times [2024-11-28 04:29:32,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:32,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18791525] [2024-11-28 04:29:32,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:32,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:29:32,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [514155203] [2024-11-28 04:29:32,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:32,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:32,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:32,251 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:32,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:29:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:32,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:29:32,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:32,777 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:32,777 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:32,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:32,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18791525] [2024-11-28 04:29:32,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:29:32,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514155203] [2024-11-28 04:29:32,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514155203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:32,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:29:32,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:29:32,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201027505] [2024-11-28 04:29:32,869 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:32,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:29:32,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:32,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:29:32,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:29:32,870 INFO L87 Difference]: Start difference. First operand 1449 states and 2132 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:29:33,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:33,942 INFO L93 Difference]: Finished difference Result 1547 states and 2265 transitions. [2024-11-28 04:29:33,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:29:33,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 107 [2024-11-28 04:29:33,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:33,946 INFO L225 Difference]: With dead ends: 1547 [2024-11-28 04:29:33,946 INFO L226 Difference]: Without dead ends: 1543 [2024-11-28 04:29:33,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:29:33,947 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 200 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:33,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 259 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:29:33,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2024-11-28 04:29:34,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1445. [2024-11-28 04:29:34,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1266 states have (on average 1.3996840442338072) internal successors, (1772), 1298 states have internal predecessors, (1772), 144 states have call successors, (144), 2 states have call predecessors, (144), 2 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-28 04:29:34,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2060 transitions. [2024-11-28 04:29:34,158 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2060 transitions. Word has length 107 [2024-11-28 04:29:34,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:34,160 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 2060 transitions. [2024-11-28 04:29:34,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:29:34,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2060 transitions. [2024-11-28 04:29:34,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 04:29:34,161 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:34,161 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:34,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-28 04:29:34,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 04:29:34,362 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:34,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:34,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1789855272, now seen corresponding path program 1 times [2024-11-28 04:29:34,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:34,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114396374] [2024-11-28 04:29:34,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:34,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:29:34,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [788168647] [2024-11-28 04:29:34,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:34,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:34,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:34,385 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:34,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 04:29:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:34,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:29:34,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:35,078 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:35,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:35,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114396374] [2024-11-28 04:29:35,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:29:35,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788168647] [2024-11-28 04:29:35,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788168647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:35,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:29:35,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:29:35,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210883067] [2024-11-28 04:29:35,310 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:35,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:29:35,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:35,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:29:35,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:29:35,311 INFO L87 Difference]: Start difference. First operand 1445 states and 2060 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:29:36,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:36,015 INFO L93 Difference]: Finished difference Result 1503 states and 2131 transitions. [2024-11-28 04:29:36,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:36,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 108 [2024-11-28 04:29:36,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:36,022 INFO L225 Difference]: With dead ends: 1503 [2024-11-28 04:29:36,022 INFO L226 Difference]: Without dead ends: 1499 [2024-11-28 04:29:36,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:29:36,023 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 145 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:36,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 224 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:29:36,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2024-11-28 04:29:36,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1453. [2024-11-28 04:29:36,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1273 states have (on average 1.4006284367635506) internal successors, (1783), 1305 states have internal predecessors, (1783), 145 states have call successors, (145), 2 states have call predecessors, (145), 2 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-28 04:29:36,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2073 transitions. [2024-11-28 04:29:36,168 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2073 transitions. Word has length 108 [2024-11-28 04:29:36,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:36,168 INFO L471 AbstractCegarLoop]: Abstraction has 1453 states and 2073 transitions. [2024-11-28 04:29:36,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:29:36,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2073 transitions. [2024-11-28 04:29:36,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 04:29:36,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:36,169 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:36,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-28 04:29:36,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-28 04:29:36,369 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:36,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:36,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1406392500, now seen corresponding path program 2 times [2024-11-28 04:29:36,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:36,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112817552] [2024-11-28 04:29:36,370 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:29:36,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:36,392 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:29:36,392 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:29:36,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [968219681] [2024-11-28 04:29:36,393 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:29:36,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:36,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:36,397 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:36,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 04:29:36,472 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:29:36,472 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:29:36,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:29:36,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:36,991 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:36,991 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:37,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:37,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112817552] [2024-11-28 04:29:37,168 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:29:37,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968219681] [2024-11-28 04:29:37,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968219681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:37,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:29:37,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:29:37,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656362514] [2024-11-28 04:29:37,168 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:37,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:29:37,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:37,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:29:37,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:29:37,169 INFO L87 Difference]: Start difference. First operand 1453 states and 2073 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:29:37,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:37,832 INFO L93 Difference]: Finished difference Result 1522 states and 2157 transitions. [2024-11-28 04:29:37,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:29:37,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 108 [2024-11-28 04:29:37,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:37,837 INFO L225 Difference]: With dead ends: 1522 [2024-11-28 04:29:37,837 INFO L226 Difference]: Without dead ends: 1520 [2024-11-28 04:29:37,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:29:37,838 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 95 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:37,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 243 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:29:37,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2024-11-28 04:29:37,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1469. [2024-11-28 04:29:37,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1287 states have (on average 1.3978243978243978) internal successors, (1799), 1319 states have internal predecessors, (1799), 147 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2024-11-28 04:29:37,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2093 transitions. [2024-11-28 04:29:37,999 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2093 transitions. Word has length 108 [2024-11-28 04:29:37,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:37,999 INFO L471 AbstractCegarLoop]: Abstraction has 1469 states and 2093 transitions. [2024-11-28 04:29:37,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:29:37,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2093 transitions. [2024-11-28 04:29:38,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 04:29:38,000 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:38,000 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:38,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-28 04:29:38,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-28 04:29:38,201 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:38,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:38,201 INFO L85 PathProgramCache]: Analyzing trace with hash -2063996326, now seen corresponding path program 1 times [2024-11-28 04:29:38,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:38,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228471487] [2024-11-28 04:29:38,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:38,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:29:38,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [913031860] [2024-11-28 04:29:38,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:38,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:38,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:38,230 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:38,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 04:29:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:38,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:29:38,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:38,829 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:38,830 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:39,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:39,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228471487] [2024-11-28 04:29:39,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:29:39,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913031860] [2024-11-28 04:29:39,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913031860] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:39,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:29:39,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 04:29:39,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312736170] [2024-11-28 04:29:39,098 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:39,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:29:39,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:39,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:29:39,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:29:39,100 INFO L87 Difference]: Start difference. First operand 1469 states and 2093 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:29:40,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:40,039 INFO L93 Difference]: Finished difference Result 1504 states and 2133 transitions. [2024-11-28 04:29:40,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:40,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 110 [2024-11-28 04:29:40,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:40,045 INFO L225 Difference]: With dead ends: 1504 [2024-11-28 04:29:40,046 INFO L226 Difference]: Without dead ends: 1502 [2024-11-28 04:29:40,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:29:40,047 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 89 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:40,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 237 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:29:40,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2024-11-28 04:29:40,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1469. [2024-11-28 04:29:40,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1287 states have (on average 1.3962703962703962) internal successors, (1797), 1319 states have internal predecessors, (1797), 147 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2024-11-28 04:29:40,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2091 transitions. [2024-11-28 04:29:40,164 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2091 transitions. Word has length 110 [2024-11-28 04:29:40,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:40,164 INFO L471 AbstractCegarLoop]: Abstraction has 1469 states and 2091 transitions. [2024-11-28 04:29:40,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:29:40,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2091 transitions. [2024-11-28 04:29:40,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 04:29:40,165 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:40,166 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:40,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-28 04:29:40,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-28 04:29:40,366 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:40,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:40,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1371504074, now seen corresponding path program 2 times [2024-11-28 04:29:40,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:40,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726064355] [2024-11-28 04:29:40,367 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:29:40,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:40,384 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:29:40,384 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:29:40,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [732109258] [2024-11-28 04:29:40,385 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:29:40,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:40,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:40,389 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:40,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 04:29:40,465 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:29:40,466 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:29:40,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:29:40,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:40,930 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:40,930 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:41,559 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:41,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:41,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726064355] [2024-11-28 04:29:41,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:29:41,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732109258] [2024-11-28 04:29:41,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732109258] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:29:41,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:29:41,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2024-11-28 04:29:41,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911123081] [2024-11-28 04:29:41,559 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:41,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:29:41,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:41,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:29:41,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:29:41,560 INFO L87 Difference]: Start difference. First operand 1469 states and 2091 transitions. Second operand has 9 states, 8 states have (on average 15.375) internal successors, (123), 9 states have internal predecessors, (123), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:29:45,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:45,111 INFO L93 Difference]: Finished difference Result 1547 states and 2187 transitions. [2024-11-28 04:29:45,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:29:45,112 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.375) internal successors, (123), 9 states have internal predecessors, (123), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 110 [2024-11-28 04:29:45,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:45,117 INFO L225 Difference]: With dead ends: 1547 [2024-11-28 04:29:45,117 INFO L226 Difference]: Without dead ends: 1545 [2024-11-28 04:29:45,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:29:45,119 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 330 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:45,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 432 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 04:29:45,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2024-11-28 04:29:45,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1478. [2024-11-28 04:29:45,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1297 states have (on average 1.3901310717039321) internal successors, (1803), 1328 states have internal predecessors, (1803), 147 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2024-11-28 04:29:45,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2097 transitions. [2024-11-28 04:29:45,267 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2097 transitions. Word has length 110 [2024-11-28 04:29:45,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:45,268 INFO L471 AbstractCegarLoop]: Abstraction has 1478 states and 2097 transitions. [2024-11-28 04:29:45,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.375) internal successors, (123), 9 states have internal predecessors, (123), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:29:45,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2097 transitions. [2024-11-28 04:29:45,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 04:29:45,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:45,269 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:45,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-28 04:29:45,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:45,474 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:45,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:45,475 INFO L85 PathProgramCache]: Analyzing trace with hash 440623390, now seen corresponding path program 1 times [2024-11-28 04:29:45,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:45,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866099712] [2024-11-28 04:29:45,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:45,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:29:45,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747820174] [2024-11-28 04:29:45,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:45,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:45,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:45,504 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:45,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-28 04:29:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:45,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:29:45,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:46,228 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:46,228 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:46,510 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-28 04:29:46,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:46,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866099712] [2024-11-28 04:29:46,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:29:46,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747820174] [2024-11-28 04:29:46,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747820174] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:46,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:29:46,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 04:29:46,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313966654] [2024-11-28 04:29:46,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:46,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:29:46,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:46,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:29:46,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:29:46,511 INFO L87 Difference]: Start difference. First operand 1478 states and 2097 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:29:47,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:47,311 INFO L93 Difference]: Finished difference Result 1478 states and 2097 transitions. [2024-11-28 04:29:47,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:29:47,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 111 [2024-11-28 04:29:47,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:47,319 INFO L225 Difference]: With dead ends: 1478 [2024-11-28 04:29:47,319 INFO L226 Difference]: Without dead ends: 1477 [2024-11-28 04:29:47,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 211 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:29:47,321 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 82 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:47,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 132 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:29:47,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2024-11-28 04:29:47,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1477. [2024-11-28 04:29:47,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 1297 states have (on average 1.3646877409406322) internal successors, (1770), 1327 states have internal predecessors, (1770), 147 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2024-11-28 04:29:47,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2064 transitions. [2024-11-28 04:29:47,529 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2064 transitions. Word has length 111 [2024-11-28 04:29:47,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:47,529 INFO L471 AbstractCegarLoop]: Abstraction has 1477 states and 2064 transitions. [2024-11-28 04:29:47,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:29:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2064 transitions. [2024-11-28 04:29:47,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 04:29:47,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:47,530 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:47,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-28 04:29:47,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:47,731 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:47,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:47,731 INFO L85 PathProgramCache]: Analyzing trace with hash 774423260, now seen corresponding path program 1 times [2024-11-28 04:29:47,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:47,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202686032] [2024-11-28 04:29:47,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:47,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:29:47,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1522385280] [2024-11-28 04:29:47,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:47,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:47,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:47,751 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:47,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-28 04:29:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:47,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:29:47,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:48,391 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:29:48,391 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:48,811 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-28 04:29:48,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:48,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202686032] [2024-11-28 04:29:48,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:29:48,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522385280] [2024-11-28 04:29:48,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522385280] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:48,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:29:48,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 04:29:48,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354882507] [2024-11-28 04:29:48,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:48,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:29:48,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:48,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:29:48,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:29:48,813 INFO L87 Difference]: Start difference. First operand 1477 states and 2064 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:29:50,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:50,512 INFO L93 Difference]: Finished difference Result 1477 states and 2064 transitions. [2024-11-28 04:29:50,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:29:50,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 112 [2024-11-28 04:29:50,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:50,519 INFO L225 Difference]: With dead ends: 1477 [2024-11-28 04:29:50,520 INFO L226 Difference]: Without dead ends: 1474 [2024-11-28 04:29:50,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 213 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:29:50,521 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 82 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:50,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 132 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:29:50,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2024-11-28 04:29:50,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1471. [2024-11-28 04:29:50,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 1294 states have (on average 1.3346213292117466) internal successors, (1727), 1321 states have internal predecessors, (1727), 147 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2024-11-28 04:29:50,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 2021 transitions. [2024-11-28 04:29:50,695 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 2021 transitions. Word has length 112 [2024-11-28 04:29:50,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:50,696 INFO L471 AbstractCegarLoop]: Abstraction has 1471 states and 2021 transitions. [2024-11-28 04:29:50,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:29:50,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 2021 transitions. [2024-11-28 04:29:50,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 04:29:50,697 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:50,697 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:50,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-28 04:29:50,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:50,902 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:50,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:50,903 INFO L85 PathProgramCache]: Analyzing trace with hash -137235212, now seen corresponding path program 1 times [2024-11-28 04:29:50,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:50,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557461755] [2024-11-28 04:29:50,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:50,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:51,103 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-28 04:29:51,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:51,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557461755] [2024-11-28 04:29:51,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557461755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:51,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101030230] [2024-11-28 04:29:51,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:51,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:51,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:51,107 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:51,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-28 04:29:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:51,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:29:51,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:51,246 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-28 04:29:51,246 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:51,427 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-28 04:29:51,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101030230] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:29:51,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:29:51,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-28 04:29:51,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108432671] [2024-11-28 04:29:51,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:51,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:29:51,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:51,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:29:51,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:29:51,430 INFO L87 Difference]: Start difference. First operand 1471 states and 2021 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:29:52,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:52,478 INFO L93 Difference]: Finished difference Result 1473 states and 2023 transitions. [2024-11-28 04:29:52,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:29:52,487 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 113 [2024-11-28 04:29:52,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:52,490 INFO L225 Difference]: With dead ends: 1473 [2024-11-28 04:29:52,490 INFO L226 Difference]: Without dead ends: 1472 [2024-11-28 04:29:52,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:29:52,491 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 65 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:52,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 155 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:29:52,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2024-11-28 04:29:52,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1470. [2024-11-28 04:29:52,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1294 states have (on average 1.329984544049459) internal successors, (1721), 1320 states have internal predecessors, (1721), 147 states have call successors, (147), 2 states have call predecessors, (147), 2 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2024-11-28 04:29:52,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 2015 transitions. [2024-11-28 04:29:52,671 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 2015 transitions. Word has length 113 [2024-11-28 04:29:52,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:52,671 INFO L471 AbstractCegarLoop]: Abstraction has 1470 states and 2015 transitions. [2024-11-28 04:29:52,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:29:52,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 2015 transitions. [2024-11-28 04:29:52,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-28 04:29:52,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:52,672 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:52,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-28 04:29:52,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:52,877 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:52,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:52,877 INFO L85 PathProgramCache]: Analyzing trace with hash 40675868, now seen corresponding path program 1 times [2024-11-28 04:29:52,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:52,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164223870] [2024-11-28 04:29:52,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:52,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:52,981 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-28 04:29:52,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:52,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164223870] [2024-11-28 04:29:52,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164223870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:52,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:52,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:29:52,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001164952] [2024-11-28 04:29:52,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:52,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:29:52,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:52,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:29:52,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:29:52,983 INFO L87 Difference]: Start difference. First operand 1470 states and 2015 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:29:54,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:54,028 INFO L93 Difference]: Finished difference Result 1503 states and 2046 transitions. [2024-11-28 04:29:54,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:29:54,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 114 [2024-11-28 04:29:54,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:54,033 INFO L225 Difference]: With dead ends: 1503 [2024-11-28 04:29:54,033 INFO L226 Difference]: Without dead ends: 1502 [2024-11-28 04:29:54,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:29:54,035 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 143 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:54,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 197 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:29:54,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2024-11-28 04:29:54,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1458. [2024-11-28 04:29:54,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1284 states have (on average 1.3278816199376946) internal successors, (1705), 1309 states have internal predecessors, (1705), 146 states have call successors, (146), 2 states have call predecessors, (146), 2 states have return successors, (146), 146 states have call predecessors, (146), 146 states have call successors, (146) [2024-11-28 04:29:54,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1997 transitions. [2024-11-28 04:29:54,177 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1997 transitions. Word has length 114 [2024-11-28 04:29:54,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:54,177 INFO L471 AbstractCegarLoop]: Abstraction has 1458 states and 1997 transitions. [2024-11-28 04:29:54,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:29:54,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1997 transitions. [2024-11-28 04:29:54,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 04:29:54,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:54,178 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:54,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-28 04:29:54,179 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:29:54,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:54,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1402840306, now seen corresponding path program 1 times [2024-11-28 04:29:54,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:54,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368955858] [2024-11-28 04:29:54,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:54,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:29:54,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [308491768] [2024-11-28 04:29:54,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:54,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:54,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:54,199 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:54,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-28 04:29:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:54,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:29:54,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:55,037 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 04:29:55,037 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:00,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:00,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368955858] [2024-11-28 04:30:00,878 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:00,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308491768] [2024-11-28 04:30:00,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308491768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:00,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:00,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:30:00,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7454123] [2024-11-28 04:30:00,879 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:00,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:30:00,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:00,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:30:00,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=129, Unknown=2, NotChecked=0, Total=182 [2024-11-28 04:30:00,880 INFO L87 Difference]: Start difference. First operand 1458 states and 1997 transitions. Second operand has 11 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:30:02,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:02,185 INFO L93 Difference]: Finished difference Result 1576 states and 2143 transitions. [2024-11-28 04:30:02,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:30:02,185 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 118 [2024-11-28 04:30:02,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:02,189 INFO L225 Difference]: With dead ends: 1576 [2024-11-28 04:30:02,189 INFO L226 Difference]: Without dead ends: 1574 [2024-11-28 04:30:02,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=72, Invalid=166, Unknown=2, NotChecked=0, Total=240 [2024-11-28 04:30:02,191 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 227 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:02,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 600 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:30:02,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2024-11-28 04:30:02,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1493. [2024-11-28 04:30:02,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1315 states have (on average 1.3277566539923955) internal successors, (1746), 1340 states have internal predecessors, (1746), 150 states have call successors, (150), 2 states have call predecessors, (150), 2 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-11-28 04:30:02,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2046 transitions. [2024-11-28 04:30:02,361 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2046 transitions. Word has length 118 [2024-11-28 04:30:02,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:02,362 INFO L471 AbstractCegarLoop]: Abstraction has 1493 states and 2046 transitions. [2024-11-28 04:30:02,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:30:02,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2046 transitions. [2024-11-28 04:30:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 04:30:02,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:02,363 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:02,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-11-28 04:30:02,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:02,564 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:30:02,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:02,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1856933120, now seen corresponding path program 2 times [2024-11-28 04:30:02,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:02,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879711059] [2024-11-28 04:30:02,564 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:30:02,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:02,593 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:30:02,593 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:30:02,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [733031811] [2024-11-28 04:30:02,594 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:30:02,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:02,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:02,604 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:02,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-28 04:30:02,682 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:30:02,682 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:30:02,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:30:02,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:03,796 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-28 04:30:03,797 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:04,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:04,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879711059] [2024-11-28 04:30:04,681 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:04,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733031811] [2024-11-28 04:30:04,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733031811] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:04,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:04,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:30:04,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267384153] [2024-11-28 04:30:04,681 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:04,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:30:04,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:04,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:30:04,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:30:04,682 INFO L87 Difference]: Start difference. First operand 1493 states and 2046 transitions. Second operand has 11 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-28 04:30:06,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:06,086 INFO L93 Difference]: Finished difference Result 1707 states and 2333 transitions. [2024-11-28 04:30:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:30:06,087 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) Word has length 118 [2024-11-28 04:30:06,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:06,090 INFO L225 Difference]: With dead ends: 1707 [2024-11-28 04:30:06,090 INFO L226 Difference]: Without dead ends: 1705 [2024-11-28 04:30:06,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:30:06,091 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 403 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:06,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 440 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:30:06,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2024-11-28 04:30:06,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1613. [2024-11-28 04:30:06,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1421 states have (on average 1.3321604503870514) internal successors, (1893), 1446 states have internal predecessors, (1893), 164 states have call successors, (164), 2 states have call predecessors, (164), 2 states have return successors, (164), 164 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-28 04:30:06,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2221 transitions. [2024-11-28 04:30:06,271 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2221 transitions. Word has length 118 [2024-11-28 04:30:06,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:06,272 INFO L471 AbstractCegarLoop]: Abstraction has 1613 states and 2221 transitions. [2024-11-28 04:30:06,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-28 04:30:06,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2221 transitions. [2024-11-28 04:30:06,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:30:06,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:06,273 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:06,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-28 04:30:06,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-28 04:30:06,474 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:30:06,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:06,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1983828591, now seen corresponding path program 1 times [2024-11-28 04:30:06,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:06,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731803692] [2024-11-28 04:30:06,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:06,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:06,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [690401383] [2024-11-28 04:30:06,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:06,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:06,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:06,504 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:06,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-28 04:30:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:06,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:30:06,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:07,365 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 3 proven. 51 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 04:30:07,366 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:07,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:07,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731803692] [2024-11-28 04:30:07,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:07,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690401383] [2024-11-28 04:30:07,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690401383] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:07,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:07,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:30:07,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206017600] [2024-11-28 04:30:07,750 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:07,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:30:07,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:07,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:30:07,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:30:07,752 INFO L87 Difference]: Start difference. First operand 1613 states and 2221 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:30:09,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:09,276 INFO L93 Difference]: Finished difference Result 1689 states and 2309 transitions. [2024-11-28 04:30:09,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:30:09,276 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 121 [2024-11-28 04:30:09,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:09,280 INFO L225 Difference]: With dead ends: 1689 [2024-11-28 04:30:09,280 INFO L226 Difference]: Without dead ends: 1687 [2024-11-28 04:30:09,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:30:09,282 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 232 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:09,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 461 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:30:09,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2024-11-28 04:30:09,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1608. [2024-11-28 04:30:09,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1417 states have (on average 1.3295695130557517) internal successors, (1884), 1442 states have internal predecessors, (1884), 163 states have call successors, (163), 2 states have call predecessors, (163), 2 states have return successors, (163), 163 states have call predecessors, (163), 163 states have call successors, (163) [2024-11-28 04:30:09,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2210 transitions. [2024-11-28 04:30:09,488 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2210 transitions. Word has length 121 [2024-11-28 04:30:09,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:09,489 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2210 transitions. [2024-11-28 04:30:09,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:30:09,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2210 transitions. [2024-11-28 04:30:09,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 04:30:09,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:09,490 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:09,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-11-28 04:30:09,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:09,695 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:30:09,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:09,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1369144246, now seen corresponding path program 1 times [2024-11-28 04:30:09,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:09,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415453491] [2024-11-28 04:30:09,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:09,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:09,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1404308761] [2024-11-28 04:30:09,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:09,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:09,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:09,726 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:09,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-28 04:30:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:09,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:30:09,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:10,289 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 23 proven. 24 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-28 04:30:10,289 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:10,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:10,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415453491] [2024-11-28 04:30:10,353 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:10,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404308761] [2024-11-28 04:30:10,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404308761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:10,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:10,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:30:10,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965810362] [2024-11-28 04:30:10,354 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:10,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:30:10,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:10,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:30:10,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:30:10,355 INFO L87 Difference]: Start difference. First operand 1608 states and 2210 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:30:12,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:12,023 INFO L93 Difference]: Finished difference Result 1854 states and 2544 transitions. [2024-11-28 04:30:12,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:30:12,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 122 [2024-11-28 04:30:12,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:12,027 INFO L225 Difference]: With dead ends: 1854 [2024-11-28 04:30:12,027 INFO L226 Difference]: Without dead ends: 1851 [2024-11-28 04:30:12,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:30:12,028 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 327 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:12,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 384 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:30:12,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2024-11-28 04:30:12,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1731. [2024-11-28 04:30:12,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1527 states have (on average 1.326784544859201) internal successors, (2026), 1552 states have internal predecessors, (2026), 176 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (176), 176 states have call predecessors, (176), 176 states have call successors, (176) [2024-11-28 04:30:12,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2378 transitions. [2024-11-28 04:30:12,307 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2378 transitions. Word has length 122 [2024-11-28 04:30:12,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:12,308 INFO L471 AbstractCegarLoop]: Abstraction has 1731 states and 2378 transitions. [2024-11-28 04:30:12,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:30:12,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2378 transitions. [2024-11-28 04:30:12,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 04:30:12,309 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:12,309 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:12,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-11-28 04:30:12,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:12,510 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:30:12,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:12,510 INFO L85 PathProgramCache]: Analyzing trace with hash -506201263, now seen corresponding path program 1 times [2024-11-28 04:30:12,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:12,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235654237] [2024-11-28 04:30:12,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:12,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:12,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1567609610] [2024-11-28 04:30:12,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:12,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:12,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:12,529 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:12,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-28 04:30:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:12,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:30:12,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:13,583 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 3 proven. 55 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 04:30:13,583 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:13,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:13,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235654237] [2024-11-28 04:30:13,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:13,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567609610] [2024-11-28 04:30:13,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567609610] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:13,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:13,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:30:13,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213899446] [2024-11-28 04:30:13,731 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:13,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:30:13,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:13,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:30:13,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:30:13,732 INFO L87 Difference]: Start difference. First operand 1731 states and 2378 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:30:16,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:16,434 INFO L93 Difference]: Finished difference Result 2733 states and 3810 transitions. [2024-11-28 04:30:16,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 04:30:16,435 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 123 [2024-11-28 04:30:16,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:16,443 INFO L225 Difference]: With dead ends: 2733 [2024-11-28 04:30:16,443 INFO L226 Difference]: Without dead ends: 2728 [2024-11-28 04:30:16,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:30:16,444 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 731 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:16,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 560 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:30:16,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2024-11-28 04:30:16,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 2326. [2024-11-28 04:30:16,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2326 states, 2060 states have (on average 1.337378640776699) internal successors, (2755), 2085 states have internal predecessors, (2755), 238 states have call successors, (238), 2 states have call predecessors, (238), 2 states have return successors, (238), 238 states have call predecessors, (238), 238 states have call successors, (238) [2024-11-28 04:30:16,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2326 states to 2326 states and 3231 transitions. [2024-11-28 04:30:16,857 INFO L78 Accepts]: Start accepts. Automaton has 2326 states and 3231 transitions. Word has length 123 [2024-11-28 04:30:16,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:16,858 INFO L471 AbstractCegarLoop]: Abstraction has 2326 states and 3231 transitions. [2024-11-28 04:30:16,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:30:16,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2326 states and 3231 transitions. [2024-11-28 04:30:16,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 04:30:16,859 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:16,859 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:16,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-28 04:30:17,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:17,064 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:30:17,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:17,064 INFO L85 PathProgramCache]: Analyzing trace with hash -634075645, now seen corresponding path program 1 times [2024-11-28 04:30:17,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:17,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153498729] [2024-11-28 04:30:17,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:17,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:17,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1177788084] [2024-11-28 04:30:17,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:17,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:17,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:17,084 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:17,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-28 04:30:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:17,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:30:17,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:17,713 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 38 proven. 26 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 04:30:17,713 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:17,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:17,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153498729] [2024-11-28 04:30:17,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:17,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177788084] [2024-11-28 04:30:17,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177788084] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:17,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:17,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:30:17,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274188352] [2024-11-28 04:30:17,842 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:17,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:30:17,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:17,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:30:17,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:30:17,843 INFO L87 Difference]: Start difference. First operand 2326 states and 3231 transitions. Second operand has 9 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:30:19,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:19,387 INFO L93 Difference]: Finished difference Result 2882 states and 3977 transitions. [2024-11-28 04:30:19,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:30:19,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 123 [2024-11-28 04:30:19,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:19,395 INFO L225 Difference]: With dead ends: 2882 [2024-11-28 04:30:19,395 INFO L226 Difference]: Without dead ends: 2878 [2024-11-28 04:30:19,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:30:19,396 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 299 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:19,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 474 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:30:19,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2024-11-28 04:30:19,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2290. [2024-11-28 04:30:19,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2290 states, 2029 states have (on average 1.3238048299655003) internal successors, (2686), 2054 states have internal predecessors, (2686), 233 states have call successors, (233), 2 states have call predecessors, (233), 2 states have return successors, (233), 233 states have call predecessors, (233), 233 states have call successors, (233) [2024-11-28 04:30:19,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 2290 states and 3152 transitions. [2024-11-28 04:30:19,807 INFO L78 Accepts]: Start accepts. Automaton has 2290 states and 3152 transitions. Word has length 123 [2024-11-28 04:30:19,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:19,807 INFO L471 AbstractCegarLoop]: Abstraction has 2290 states and 3152 transitions. [2024-11-28 04:30:19,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:30:19,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2290 states and 3152 transitions. [2024-11-28 04:30:19,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:30:19,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:19,809 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:19,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-28 04:30:20,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:20,010 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:30:20,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:20,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1628739422, now seen corresponding path program 2 times [2024-11-28 04:30:20,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:20,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501350185] [2024-11-28 04:30:20,011 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:30:20,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:20,040 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:30:20,043 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:30:20,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [745692315] [2024-11-28 04:30:20,044 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:30:20,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:20,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:20,046 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:20,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-28 04:30:20,125 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:30:20,125 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:30:20,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:30:20,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:20,984 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-28 04:30:20,984 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:24,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:24,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501350185] [2024-11-28 04:30:24,326 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:24,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745692315] [2024-11-28 04:30:24,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745692315] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:24,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:24,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:30:24,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359690430] [2024-11-28 04:30:24,327 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:24,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:30:24,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:24,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:30:24,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=188, Unknown=1, NotChecked=0, Total=240 [2024-11-28 04:30:24,328 INFO L87 Difference]: Start difference. First operand 2290 states and 3152 transitions. Second operand has 12 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:30:25,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:25,661 INFO L93 Difference]: Finished difference Result 2513 states and 3437 transitions. [2024-11-28 04:30:25,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:30:25,661 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 129 [2024-11-28 04:30:25,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:25,667 INFO L225 Difference]: With dead ends: 2513 [2024-11-28 04:30:25,667 INFO L226 Difference]: Without dead ends: 2511 [2024-11-28 04:30:25,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=120, Invalid=385, Unknown=1, NotChecked=0, Total=506 [2024-11-28 04:30:25,668 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 220 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:25,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 462 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:30:25,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2024-11-28 04:30:25,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2420. [2024-11-28 04:30:25,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 2146 states have (on average 1.3219944082013046) internal successors, (2837), 2171 states have internal predecessors, (2837), 246 states have call successors, (246), 2 states have call predecessors, (246), 2 states have return successors, (246), 246 states have call predecessors, (246), 246 states have call successors, (246) [2024-11-28 04:30:25,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3329 transitions. [2024-11-28 04:30:25,914 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3329 transitions. Word has length 129 [2024-11-28 04:30:25,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:25,914 INFO L471 AbstractCegarLoop]: Abstraction has 2420 states and 3329 transitions. [2024-11-28 04:30:25,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:30:25,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3329 transitions. [2024-11-28 04:30:25,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:30:25,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:25,915 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:25,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-28 04:30:26,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-11-28 04:30:26,120 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:30:26,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:26,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1109517780, now seen corresponding path program 1 times [2024-11-28 04:30:26,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:26,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548342762] [2024-11-28 04:30:26,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:26,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:26,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1653761577] [2024-11-28 04:30:26,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:26,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:26,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:26,145 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:26,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-28 04:30:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:26,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:30:26,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:27,033 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 04:30:27,033 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:30,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:30,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548342762] [2024-11-28 04:30:30,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:30,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653761577] [2024-11-28 04:30:30,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653761577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:30,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:30,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:30:30,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142604129] [2024-11-28 04:30:30,293 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:30,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:30:30,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:30,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:30:30,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=130, Unknown=1, NotChecked=0, Total=182 [2024-11-28 04:30:30,296 INFO L87 Difference]: Start difference. First operand 2420 states and 3329 transitions. Second operand has 11 states, 10 states have (on average 7.8) internal successors, (78), 11 states have internal predecessors, (78), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:30:31,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:31,532 INFO L93 Difference]: Finished difference Result 2520 states and 3449 transitions. [2024-11-28 04:30:31,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:30:31,532 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.8) internal successors, (78), 11 states have internal predecessors, (78), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 129 [2024-11-28 04:30:31,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:31,538 INFO L225 Difference]: With dead ends: 2520 [2024-11-28 04:30:31,538 INFO L226 Difference]: Without dead ends: 2518 [2024-11-28 04:30:31,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=62, Invalid=147, Unknown=1, NotChecked=0, Total=210 [2024-11-28 04:30:31,540 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 251 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:31,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 473 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:30:31,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2024-11-28 04:30:31,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 2471. [2024-11-28 04:30:31,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2471 states, 2191 states have (on average 1.3208580556823368) internal successors, (2894), 2216 states have internal predecessors, (2894), 252 states have call successors, (252), 2 states have call predecessors, (252), 2 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-28 04:30:31,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 3398 transitions. [2024-11-28 04:30:31,975 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 3398 transitions. Word has length 129 [2024-11-28 04:30:31,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:31,975 INFO L471 AbstractCegarLoop]: Abstraction has 2471 states and 3398 transitions. [2024-11-28 04:30:31,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.8) internal successors, (78), 11 states have internal predecessors, (78), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:30:31,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 3398 transitions. [2024-11-28 04:30:31,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 04:30:31,976 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:31,976 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:31,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-11-28 04:30:32,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-28 04:30:32,177 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:30:32,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:32,178 INFO L85 PathProgramCache]: Analyzing trace with hash -424050502, now seen corresponding path program 1 times [2024-11-28 04:30:32,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:32,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308089198] [2024-11-28 04:30:32,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:32,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:32,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [119941097] [2024-11-28 04:30:32,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:32,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:32,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:32,200 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:32,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-28 04:30:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:32,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:30:32,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:33,098 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 3 proven. 65 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 04:30:33,099 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:33,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:33,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308089198] [2024-11-28 04:30:33,484 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:33,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119941097] [2024-11-28 04:30:33,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119941097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:33,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:33,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:30:33,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732538221] [2024-11-28 04:30:33,484 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:33,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:30:33,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:33,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:30:33,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:30:33,486 INFO L87 Difference]: Start difference. First operand 2471 states and 3398 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:30:34,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:34,683 INFO L93 Difference]: Finished difference Result 2519 states and 3448 transitions. [2024-11-28 04:30:34,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:30:34,683 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 132 [2024-11-28 04:30:34,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:34,689 INFO L225 Difference]: With dead ends: 2519 [2024-11-28 04:30:34,689 INFO L226 Difference]: Without dead ends: 2517 [2024-11-28 04:30:34,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:30:34,691 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 186 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:34,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 540 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:30:34,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2024-11-28 04:30:35,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2439. [2024-11-28 04:30:35,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2163 states have (on average 1.3222376329172445) internal successors, (2860), 2188 states have internal predecessors, (2860), 248 states have call successors, (248), 2 states have call predecessors, (248), 2 states have return successors, (248), 248 states have call predecessors, (248), 248 states have call successors, (248) [2024-11-28 04:30:35,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3356 transitions. [2024-11-28 04:30:35,149 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3356 transitions. Word has length 132 [2024-11-28 04:30:35,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:35,149 INFO L471 AbstractCegarLoop]: Abstraction has 2439 states and 3356 transitions. [2024-11-28 04:30:35,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:30:35,150 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3356 transitions. [2024-11-28 04:30:35,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 04:30:35,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:35,151 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:35,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-11-28 04:30:35,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-28 04:30:35,352 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:30:35,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:35,353 INFO L85 PathProgramCache]: Analyzing trace with hash -260663592, now seen corresponding path program 1 times [2024-11-28 04:30:35,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:35,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157147336] [2024-11-28 04:30:35,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:35,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:30:35,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534305505] [2024-11-28 04:30:35,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:35,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:35,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:35,378 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:35,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-28 04:30:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:35,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:30:35,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:35,996 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 23 proven. 38 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 04:30:35,996 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:36,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:36,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157147336] [2024-11-28 04:30:36,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:36,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534305505] [2024-11-28 04:30:36,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534305505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:36,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:36,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:30:36,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787406676] [2024-11-28 04:30:36,083 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:36,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:30:36,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:36,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:30:36,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:30:36,084 INFO L87 Difference]: Start difference. First operand 2439 states and 3356 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:30:37,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:37,884 INFO L93 Difference]: Finished difference Result 2621 states and 3567 transitions. [2024-11-28 04:30:37,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:30:37,884 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 133 [2024-11-28 04:30:37,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:37,890 INFO L225 Difference]: With dead ends: 2621 [2024-11-28 04:30:37,890 INFO L226 Difference]: Without dead ends: 2617 [2024-11-28 04:30:37,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:30:37,891 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 258 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:37,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 541 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:30:37,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2024-11-28 04:30:38,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 2505. [2024-11-28 04:30:38,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 2222 states have (on average 1.3042304230423043) internal successors, (2898), 2247 states have internal predecessors, (2898), 255 states have call successors, (255), 2 states have call predecessors, (255), 2 states have return successors, (255), 255 states have call predecessors, (255), 255 states have call successors, (255) [2024-11-28 04:30:38,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3408 transitions. [2024-11-28 04:30:38,224 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3408 transitions. Word has length 133 [2024-11-28 04:30:38,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:38,225 INFO L471 AbstractCegarLoop]: Abstraction has 2505 states and 3408 transitions. [2024-11-28 04:30:38,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:30:38,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3408 transitions. [2024-11-28 04:30:38,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 04:30:38,226 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:38,226 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:38,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-28 04:30:38,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-28 04:30:38,427 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:30:38,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:38,427 INFO L85 PathProgramCache]: Analyzing trace with hash -154854592, now seen corresponding path program 1 times [2024-11-28 04:30:38,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:38,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159928796] [2024-11-28 04:30:38,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:38,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-28 04:30:38,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:38,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159928796] [2024-11-28 04:30:38,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159928796] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:38,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444271159] [2024-11-28 04:30:38,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:38,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:38,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:38,569 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:38,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-28 04:30:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:38,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:30:38,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:38,729 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-28 04:30:38,729 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:38,886 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-28 04:30:38,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444271159] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:30:38,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:30:38,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-28 04:30:38,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045513296] [2024-11-28 04:30:38,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:38,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:30:38,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:38,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:30:38,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:30:38,888 INFO L87 Difference]: Start difference. First operand 2505 states and 3408 transitions. Second operand has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-28 04:30:39,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:39,786 INFO L93 Difference]: Finished difference Result 2507 states and 3410 transitions. [2024-11-28 04:30:39,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:30:39,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 139 [2024-11-28 04:30:39,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:39,790 INFO L225 Difference]: With dead ends: 2507 [2024-11-28 04:30:39,790 INFO L226 Difference]: Without dead ends: 2468 [2024-11-28 04:30:39,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:30:39,792 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 30 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:39,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 149 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:30:39,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2024-11-28 04:30:40,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2433. [2024-11-28 04:30:40,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2433 states, 2159 states have (on average 1.3075497915701715) internal successors, (2823), 2182 states have internal predecessors, (2823), 248 states have call successors, (248), 2 states have call predecessors, (248), 2 states have return successors, (248), 248 states have call predecessors, (248), 248 states have call successors, (248) [2024-11-28 04:30:40,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2433 states to 2433 states and 3319 transitions. [2024-11-28 04:30:40,107 INFO L78 Accepts]: Start accepts. Automaton has 2433 states and 3319 transitions. Word has length 139 [2024-11-28 04:30:40,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:40,108 INFO L471 AbstractCegarLoop]: Abstraction has 2433 states and 3319 transitions. [2024-11-28 04:30:40,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-28 04:30:40,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2433 states and 3319 transitions. [2024-11-28 04:30:40,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 04:30:40,109 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:40,109 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:40,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-11-28 04:30:40,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-28 04:30:40,309 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:30:40,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:40,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1739618088, now seen corresponding path program 1 times [2024-11-28 04:30:40,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:40,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312991768] [2024-11-28 04:30:40,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:40,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:40,436 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:30:40,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:40,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312991768] [2024-11-28 04:30:40,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312991768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:40,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767627024] [2024-11-28 04:30:40,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:40,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:40,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:40,440 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:40,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-28 04:30:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:40,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:30:40,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:40,833 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:30:40,834 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:41,086 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:30:41,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767627024] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:30:41,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:30:41,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-28 04:30:41,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823500424] [2024-11-28 04:30:41,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:41,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:30:41,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:41,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:30:41,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:30:41,088 INFO L87 Difference]: Start difference. First operand 2433 states and 3319 transitions. Second operand has 11 states, 10 states have (on average 24.0) internal successors, (240), 11 states have internal predecessors, (240), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-28 04:30:42,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:42,325 INFO L93 Difference]: Finished difference Result 3459 states and 4670 transitions. [2024-11-28 04:30:42,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:30:42,326 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 24.0) internal successors, (240), 11 states have internal predecessors, (240), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) Word has length 145 [2024-11-28 04:30:42,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:42,331 INFO L225 Difference]: With dead ends: 3459 [2024-11-28 04:30:42,331 INFO L226 Difference]: Without dead ends: 3457 [2024-11-28 04:30:42,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:30:42,332 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 308 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:42,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 522 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:30:42,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3457 states. [2024-11-28 04:30:42,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3457 to 3009. [2024-11-28 04:30:42,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3009 states, 2681 states have (on average 1.308466989929131) internal successors, (3508), 2704 states have internal predecessors, (3508), 302 states have call successors, (302), 2 states have call predecessors, (302), 2 states have return successors, (302), 302 states have call predecessors, (302), 302 states have call successors, (302) [2024-11-28 04:30:42,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3009 states to 3009 states and 4112 transitions. [2024-11-28 04:30:42,743 INFO L78 Accepts]: Start accepts. Automaton has 3009 states and 4112 transitions. Word has length 145 [2024-11-28 04:30:42,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:42,744 INFO L471 AbstractCegarLoop]: Abstraction has 3009 states and 4112 transitions. [2024-11-28 04:30:42,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.0) internal successors, (240), 11 states have internal predecessors, (240), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-28 04:30:42,744 INFO L276 IsEmpty]: Start isEmpty. Operand 3009 states and 4112 transitions. [2024-11-28 04:30:42,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 04:30:42,745 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:42,745 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:42,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-11-28 04:30:42,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-28 04:30:42,945 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:30:42,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:42,946 INFO L85 PathProgramCache]: Analyzing trace with hash 426680714, now seen corresponding path program 1 times [2024-11-28 04:30:42,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:42,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837071371] [2024-11-28 04:30:42,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:42,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:43,097 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:30:43,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:43,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837071371] [2024-11-28 04:30:43,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837071371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:43,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150694551] [2024-11-28 04:30:43,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:43,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:43,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:43,100 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:43,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-28 04:30:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:43,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:30:43,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:43,609 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:30:43,609 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:43,891 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:30:43,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150694551] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:30:43,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:30:43,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-28 04:30:43,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152602470] [2024-11-28 04:30:43,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:43,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:30:43,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:43,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:30:43,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:30:43,893 INFO L87 Difference]: Start difference. First operand 3009 states and 4112 transitions. Second operand has 11 states, 10 states have (on average 24.6) internal successors, (246), 11 states have internal predecessors, (246), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-28 04:30:44,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:44,994 INFO L93 Difference]: Finished difference Result 4041 states and 5458 transitions. [2024-11-28 04:30:44,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:30:44,995 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 24.6) internal successors, (246), 11 states have internal predecessors, (246), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) Word has length 147 [2024-11-28 04:30:44,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:44,999 INFO L225 Difference]: With dead ends: 4041 [2024-11-28 04:30:44,999 INFO L226 Difference]: Without dead ends: 4039 [2024-11-28 04:30:44,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=103, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:30:45,000 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 504 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:45,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 462 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:30:45,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4039 states. [2024-11-28 04:30:45,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4039 to 3549. [2024-11-28 04:30:45,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3549 states, 3174 states have (on average 1.309388783868935) internal successors, (4156), 3197 states have internal predecessors, (4156), 349 states have call successors, (349), 2 states have call predecessors, (349), 2 states have return successors, (349), 349 states have call predecessors, (349), 349 states have call successors, (349) [2024-11-28 04:30:45,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3549 states to 3549 states and 4854 transitions. [2024-11-28 04:30:45,382 INFO L78 Accepts]: Start accepts. Automaton has 3549 states and 4854 transitions. Word has length 147 [2024-11-28 04:30:45,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:45,382 INFO L471 AbstractCegarLoop]: Abstraction has 3549 states and 4854 transitions. [2024-11-28 04:30:45,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.6) internal successors, (246), 11 states have internal predecessors, (246), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-28 04:30:45,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3549 states and 4854 transitions. [2024-11-28 04:30:45,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:30:45,383 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:45,383 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:45,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-11-28 04:30:45,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:45,583 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:30:45,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:45,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1627322996, now seen corresponding path program 3 times [2024-11-28 04:30:45,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:45,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485974333] [2024-11-28 04:30:45,584 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:30:45,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:45,605 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:30:45,605 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:30:45,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1384015536] [2024-11-28 04:30:45,606 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:30:45,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:45,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:45,609 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:45,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-28 04:30:45,691 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:30:45,691 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:30:45,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 04:30:45,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:48,019 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 24 proven. 81 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:30:48,020 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:48,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:48,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485974333] [2024-11-28 04:30:48,608 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:48,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384015536] [2024-11-28 04:30:48,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384015536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:48,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:48,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 04:30:48,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225217465] [2024-11-28 04:30:48,609 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:48,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:30:48,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:48,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:30:48,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:30:48,610 INFO L87 Difference]: Start difference. First operand 3549 states and 4854 transitions. Second operand has 16 states, 15 states have (on average 6.2) internal successors, (93), 16 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:30:53,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:53,156 INFO L93 Difference]: Finished difference Result 3586 states and 4891 transitions. [2024-11-28 04:30:53,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:30:53,156 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.2) internal successors, (93), 16 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 149 [2024-11-28 04:30:53,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:53,160 INFO L225 Difference]: With dead ends: 3586 [2024-11-28 04:30:53,160 INFO L226 Difference]: Without dead ends: 3562 [2024-11-28 04:30:53,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:30:53,161 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 164 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:53,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 429 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 04:30:53,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2024-11-28 04:30:53,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 3549. [2024-11-28 04:30:53,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3549 states, 3174 states have (on average 1.3087586641461877) internal successors, (4154), 3197 states have internal predecessors, (4154), 349 states have call successors, (349), 2 states have call predecessors, (349), 2 states have return successors, (349), 349 states have call predecessors, (349), 349 states have call successors, (349) [2024-11-28 04:30:53,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3549 states to 3549 states and 4852 transitions. [2024-11-28 04:30:53,968 INFO L78 Accepts]: Start accepts. Automaton has 3549 states and 4852 transitions. Word has length 149 [2024-11-28 04:30:53,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:53,968 INFO L471 AbstractCegarLoop]: Abstraction has 3549 states and 4852 transitions. [2024-11-28 04:30:53,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.2) internal successors, (93), 16 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:30:53,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3549 states and 4852 transitions. [2024-11-28 04:30:53,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:30:53,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:53,972 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:53,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-11-28 04:30:54,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:54,173 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:30:54,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:54,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1568924776, now seen corresponding path program 4 times [2024-11-28 04:30:54,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:54,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169685671] [2024-11-28 04:30:54,174 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:30:54,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:54,198 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:30:54,198 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:30:54,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1868194380] [2024-11-28 04:30:54,199 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:30:54,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:54,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:54,203 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:54,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-28 04:30:54,287 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:30:54,287 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:30:54,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:30:54,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:54,965 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:30:54,965 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:55,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:55,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169685671] [2024-11-28 04:30:55,483 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:55,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868194380] [2024-11-28 04:30:55,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868194380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:55,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:55,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:30:55,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200159460] [2024-11-28 04:30:55,484 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:55,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:30:55,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:55,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:30:55,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:30:55,485 INFO L87 Difference]: Start difference. First operand 3549 states and 4852 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:30:56,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:56,594 INFO L93 Difference]: Finished difference Result 3618 states and 4929 transitions. [2024-11-28 04:30:56,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:30:56,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 149 [2024-11-28 04:30:56,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:56,601 INFO L225 Difference]: With dead ends: 3618 [2024-11-28 04:30:56,601 INFO L226 Difference]: Without dead ends: 3616 [2024-11-28 04:30:56,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:30:56,603 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 139 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:56,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 457 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:30:56,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3616 states. [2024-11-28 04:30:56,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3616 to 3565. [2024-11-28 04:30:56,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3565 states, 3188 states have (on average 1.3070890840652447) internal successors, (4167), 3211 states have internal predecessors, (4167), 351 states have call successors, (351), 2 states have call predecessors, (351), 2 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2024-11-28 04:30:56,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 4869 transitions. [2024-11-28 04:30:56,987 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 4869 transitions. Word has length 149 [2024-11-28 04:30:56,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:56,987 INFO L471 AbstractCegarLoop]: Abstraction has 3565 states and 4869 transitions. [2024-11-28 04:30:56,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:30:56,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 4869 transitions. [2024-11-28 04:30:56,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:30:56,989 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:56,989 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:56,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-11-28 04:30:57,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2024-11-28 04:30:57,189 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:30:57,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:57,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1775342310, now seen corresponding path program 5 times [2024-11-28 04:30:57,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:57,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277821016] [2024-11-28 04:30:57,190 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:30:57,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:57,218 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-28 04:30:57,218 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:30:57,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [188092334] [2024-11-28 04:30:57,220 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:30:57,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:57,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:57,225 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:57,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-28 04:30:57,497 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-28 04:30:57,497 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:30:57,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:30:57,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:59,475 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 12 proven. 111 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-28 04:30:59,475 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:59,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:59,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277821016] [2024-11-28 04:30:59,754 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:30:59,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188092334] [2024-11-28 04:30:59,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188092334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:59,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:59,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 04:30:59,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865950786] [2024-11-28 04:30:59,754 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:59,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:30:59,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:59,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:30:59,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:30:59,755 INFO L87 Difference]: Start difference. First operand 3565 states and 4869 transitions. Second operand has 16 states, 15 states have (on average 6.2) internal successors, (93), 16 states have internal predecessors, (93), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:31:07,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:31:07,467 INFO L93 Difference]: Finished difference Result 3611 states and 4918 transitions. [2024-11-28 04:31:07,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:31:07,468 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.2) internal successors, (93), 16 states have internal predecessors, (93), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 149 [2024-11-28 04:31:07,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:31:07,473 INFO L225 Difference]: With dead ends: 3611 [2024-11-28 04:31:07,473 INFO L226 Difference]: Without dead ends: 3609 [2024-11-28 04:31:07,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=119, Invalid=428, Unknown=5, NotChecked=0, Total=552 [2024-11-28 04:31:07,475 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 134 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 13 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:31:07,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 415 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1502 Invalid, 9 Unknown, 0 Unchecked, 5.0s Time] [2024-11-28 04:31:07,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3609 states. [2024-11-28 04:31:08,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3609 to 3565. [2024-11-28 04:31:08,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3565 states, 3188 states have (on average 1.306775407779172) internal successors, (4166), 3211 states have internal predecessors, (4166), 351 states have call successors, (351), 2 states have call predecessors, (351), 2 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2024-11-28 04:31:08,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 4868 transitions. [2024-11-28 04:31:08,186 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 4868 transitions. Word has length 149 [2024-11-28 04:31:08,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:31:08,186 INFO L471 AbstractCegarLoop]: Abstraction has 3565 states and 4868 transitions. [2024-11-28 04:31:08,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.2) internal successors, (93), 16 states have internal predecessors, (93), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:31:08,186 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 4868 transitions. [2024-11-28 04:31:08,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:31:08,187 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:31:08,187 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:31:08,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-11-28 04:31:08,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:08,387 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:31:08,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:31:08,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2018274572, now seen corresponding path program 6 times [2024-11-28 04:31:08,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:31:08,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094277837] [2024-11-28 04:31:08,388 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:31:08,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:31:08,414 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-11-28 04:31:08,414 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:31:08,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033451525] [2024-11-28 04:31:08,415 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:31:08,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:08,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:31:08,420 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:31:08,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-28 04:31:08,593 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-11-28 04:31:08,593 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:31:08,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:31:08,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:31:09,293 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:31:09,293 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:31:09,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:31:09,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094277837] [2024-11-28 04:31:09,495 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:31:09,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033451525] [2024-11-28 04:31:09,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033451525] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:31:09,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:31:09,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:31:09,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907512252] [2024-11-28 04:31:09,496 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:31:09,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:31:09,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:31:09,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:31:09,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:31:09,497 INFO L87 Difference]: Start difference. First operand 3565 states and 4868 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:31:10,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:31:10,647 INFO L93 Difference]: Finished difference Result 3622 states and 4931 transitions. [2024-11-28 04:31:10,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:31:10,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 149 [2024-11-28 04:31:10,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:31:10,654 INFO L225 Difference]: With dead ends: 3622 [2024-11-28 04:31:10,654 INFO L226 Difference]: Without dead ends: 3620 [2024-11-28 04:31:10,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:31:10,655 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 178 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:31:10,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 280 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:31:10,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3620 states. [2024-11-28 04:31:11,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3620 to 3581. [2024-11-28 04:31:11,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3581 states, 3202 states have (on average 1.3051217988757027) internal successors, (4179), 3225 states have internal predecessors, (4179), 353 states have call successors, (353), 2 states have call predecessors, (353), 2 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2024-11-28 04:31:11,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3581 states to 3581 states and 4885 transitions. [2024-11-28 04:31:11,058 INFO L78 Accepts]: Start accepts. Automaton has 3581 states and 4885 transitions. Word has length 149 [2024-11-28 04:31:11,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:31:11,058 INFO L471 AbstractCegarLoop]: Abstraction has 3581 states and 4885 transitions. [2024-11-28 04:31:11,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:31:11,058 INFO L276 IsEmpty]: Start isEmpty. Operand 3581 states and 4885 transitions. [2024-11-28 04:31:11,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:31:11,059 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:31:11,059 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:31:11,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-11-28 04:31:11,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2024-11-28 04:31:11,259 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:31:11,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:31:11,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1325992514, now seen corresponding path program 7 times [2024-11-28 04:31:11,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:31:11,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429532735] [2024-11-28 04:31:11,260 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:31:11,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:31:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:31:11,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [872224869] [2024-11-28 04:31:11,279 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:31:11,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:11,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:31:11,282 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:31:11,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-28 04:31:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:31:11,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:31:11,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:31:12,202 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:31:12,203 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:31:12,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:31:12,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429532735] [2024-11-28 04:31:12,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:31:12,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872224869] [2024-11-28 04:31:12,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872224869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:31:12,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:31:12,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:31:12,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575726298] [2024-11-28 04:31:12,400 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:31:12,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:31:12,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:31:12,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:31:12,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:31:12,401 INFO L87 Difference]: Start difference. First operand 3581 states and 4885 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:31:13,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:31:13,539 INFO L93 Difference]: Finished difference Result 3626 states and 4933 transitions. [2024-11-28 04:31:13,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:31:13,540 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 149 [2024-11-28 04:31:13,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:31:13,545 INFO L225 Difference]: With dead ends: 3626 [2024-11-28 04:31:13,545 INFO L226 Difference]: Without dead ends: 3624 [2024-11-28 04:31:13,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:31:13,546 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 81 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:31:13,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 408 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:31:13,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3624 states. [2024-11-28 04:31:14,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3624 to 3587. [2024-11-28 04:31:14,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3587 states, 3207 states have (on average 1.3046460866853757) internal successors, (4184), 3230 states have internal predecessors, (4184), 354 states have call successors, (354), 2 states have call predecessors, (354), 2 states have return successors, (354), 354 states have call predecessors, (354), 354 states have call successors, (354) [2024-11-28 04:31:14,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3587 states to 3587 states and 4892 transitions. [2024-11-28 04:31:14,091 INFO L78 Accepts]: Start accepts. Automaton has 3587 states and 4892 transitions. Word has length 149 [2024-11-28 04:31:14,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:31:14,091 INFO L471 AbstractCegarLoop]: Abstraction has 3587 states and 4892 transitions. [2024-11-28 04:31:14,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:31:14,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3587 states and 4892 transitions. [2024-11-28 04:31:14,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 04:31:14,091 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:31:14,092 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:31:14,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2024-11-28 04:31:14,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:14,292 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:31:14,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:31:14,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1870255258, now seen corresponding path program 8 times [2024-11-28 04:31:14,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:31:14,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113002513] [2024-11-28 04:31:14,293 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:31:14,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:31:14,308 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:31:14,308 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:31:14,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [618410702] [2024-11-28 04:31:14,309 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:31:14,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:14,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:31:14,312 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:31:14,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-28 04:31:14,381 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:31:14,381 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:31:14,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:31:14,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:31:14,966 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:31:14,966 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:31:15,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:31:15,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113002513] [2024-11-28 04:31:15,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:31:15,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618410702] [2024-11-28 04:31:15,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618410702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:31:15,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:31:15,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:31:15,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260627855] [2024-11-28 04:31:15,219 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:31:15,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:31:15,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:31:15,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:31:15,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=38, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:31:15,220 INFO L87 Difference]: Start difference. First operand 3587 states and 4892 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:31:16,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:31:16,217 INFO L93 Difference]: Finished difference Result 3640 states and 4950 transitions. [2024-11-28 04:31:16,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:31:16,217 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 149 [2024-11-28 04:31:16,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:31:16,221 INFO L225 Difference]: With dead ends: 3640 [2024-11-28 04:31:16,221 INFO L226 Difference]: Without dead ends: 3638 [2024-11-28 04:31:16,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=38, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:31:16,223 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 72 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:31:16,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 197 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:31:16,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3638 states. [2024-11-28 04:31:16,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3638 to 3587. [2024-11-28 04:31:16,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3587 states, 3207 states have (on average 1.3043342687870283) internal successors, (4183), 3230 states have internal predecessors, (4183), 354 states have call successors, (354), 2 states have call predecessors, (354), 2 states have return successors, (354), 354 states have call predecessors, (354), 354 states have call successors, (354) [2024-11-28 04:31:16,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3587 states to 3587 states and 4891 transitions. [2024-11-28 04:31:16,636 INFO L78 Accepts]: Start accepts. Automaton has 3587 states and 4891 transitions. Word has length 149 [2024-11-28 04:31:16,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:31:16,636 INFO L471 AbstractCegarLoop]: Abstraction has 3587 states and 4891 transitions. [2024-11-28 04:31:16,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:31:16,636 INFO L276 IsEmpty]: Start isEmpty. Operand 3587 states and 4891 transitions. [2024-11-28 04:31:16,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 04:31:16,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:31:16,637 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:31:16,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2024-11-28 04:31:16,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:16,838 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:31:16,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:31:16,838 INFO L85 PathProgramCache]: Analyzing trace with hash -489301746, now seen corresponding path program 3 times [2024-11-28 04:31:16,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:31:16,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844135577] [2024-11-28 04:31:16,838 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:31:16,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:31:16,863 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:31:16,863 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:31:16,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1171536053] [2024-11-28 04:31:16,864 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:31:16,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:16,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:31:16,869 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:31:16,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-28 04:31:17,126 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:31:17,126 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:31:17,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:31:17,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:31:18,926 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 24 proven. 87 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:31:18,926 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:31:19,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:31:19,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844135577] [2024-11-28 04:31:19,354 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:31:19,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171536053] [2024-11-28 04:31:19,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171536053] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:31:19,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:31:19,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:31:19,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109495336] [2024-11-28 04:31:19,354 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:31:19,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:31:19,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:31:19,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:31:19,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:31:19,355 INFO L87 Difference]: Start difference. First operand 3587 states and 4891 transitions. Second operand has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:31:21,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:31:21,838 INFO L93 Difference]: Finished difference Result 3601 states and 4904 transitions. [2024-11-28 04:31:21,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:31:21,838 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 151 [2024-11-28 04:31:21,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:31:21,844 INFO L225 Difference]: With dead ends: 3601 [2024-11-28 04:31:21,844 INFO L226 Difference]: Without dead ends: 3600 [2024-11-28 04:31:21,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:31:21,845 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 86 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:31:21,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 526 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:31:21,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3600 states. [2024-11-28 04:31:22,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3600 to 3587. [2024-11-28 04:31:22,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3587 states, 3207 states have (on average 1.304022450888681) internal successors, (4182), 3230 states have internal predecessors, (4182), 354 states have call successors, (354), 2 states have call predecessors, (354), 2 states have return successors, (354), 354 states have call predecessors, (354), 354 states have call successors, (354) [2024-11-28 04:31:22,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3587 states to 3587 states and 4890 transitions. [2024-11-28 04:31:22,344 INFO L78 Accepts]: Start accepts. Automaton has 3587 states and 4890 transitions. Word has length 151 [2024-11-28 04:31:22,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:31:22,345 INFO L471 AbstractCegarLoop]: Abstraction has 3587 states and 4890 transitions. [2024-11-28 04:31:22,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:31:22,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3587 states and 4890 transitions. [2024-11-28 04:31:22,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 04:31:22,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:31:22,347 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:31:22,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2024-11-28 04:31:22,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:22,548 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:31:22,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:31:22,549 INFO L85 PathProgramCache]: Analyzing trace with hash 203190506, now seen corresponding path program 4 times [2024-11-28 04:31:22,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:31:22,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958349661] [2024-11-28 04:31:22,549 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:31:22,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:31:22,580 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:31:22,580 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:31:22,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1596372478] [2024-11-28 04:31:22,585 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:31:22,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:22,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:31:22,588 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:31:22,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-11-28 04:31:22,682 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:31:22,683 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:31:22,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:31:22,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:31:23,451 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:31:23,451 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:31:24,624 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:31:24,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:31:24,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958349661] [2024-11-28 04:31:24,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:31:24,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596372478] [2024-11-28 04:31:24,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596372478] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:31:24,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:31:24,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2024-11-28 04:31:24,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304190848] [2024-11-28 04:31:24,625 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:31:24,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:31:24,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:31:24,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:31:24,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:31:24,627 INFO L87 Difference]: Start difference. First operand 3587 states and 4890 transitions. Second operand has 13 states, 12 states have (on average 14.583333333333334) internal successors, (175), 13 states have internal predecessors, (175), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:31:28,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:31:32,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:31:39,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:31:39,868 INFO L93 Difference]: Finished difference Result 3675 states and 4992 transitions. [2024-11-28 04:31:39,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:31:39,869 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 14.583333333333334) internal successors, (175), 13 states have internal predecessors, (175), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 151 [2024-11-28 04:31:39,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:31:39,875 INFO L225 Difference]: With dead ends: 3675 [2024-11-28 04:31:39,875 INFO L226 Difference]: Without dead ends: 3674 [2024-11-28 04:31:39,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:31:39,877 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 532 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 74 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:31:39,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 578 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1437 Invalid, 1 Unknown, 0 Unchecked, 13.4s Time] [2024-11-28 04:31:39,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2024-11-28 04:31:40,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3591. [2024-11-28 04:31:40,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3591 states, 3211 states have (on average 1.3023980068514482) internal successors, (4182), 3234 states have internal predecessors, (4182), 354 states have call successors, (354), 2 states have call predecessors, (354), 2 states have return successors, (354), 354 states have call predecessors, (354), 354 states have call successors, (354) [2024-11-28 04:31:40,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 4890 transitions. [2024-11-28 04:31:40,368 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 4890 transitions. Word has length 151 [2024-11-28 04:31:40,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:31:40,368 INFO L471 AbstractCegarLoop]: Abstraction has 3591 states and 4890 transitions. [2024-11-28 04:31:40,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 14.583333333333334) internal successors, (175), 13 states have internal predecessors, (175), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 04:31:40,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 4890 transitions. [2024-11-28 04:31:40,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 04:31:40,369 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:31:40,369 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:31:40,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2024-11-28 04:31:40,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:40,570 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:31:40,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:31:40,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1001941732, now seen corresponding path program 5 times [2024-11-28 04:31:40,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:31:40,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754031212] [2024-11-28 04:31:40,571 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:31:40,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:31:40,591 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-28 04:31:40,591 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:31:40,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036383021] [2024-11-28 04:31:40,592 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:31:40,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:40,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:31:40,597 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:31:40,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-28 04:31:41,022 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-28 04:31:41,023 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:31:41,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 04:31:41,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:31:43,502 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 12 proven. 117 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-28 04:31:43,502 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:31:47,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:31:47,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754031212] [2024-11-28 04:31:47,873 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:31:47,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036383021] [2024-11-28 04:31:47,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036383021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:31:47,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:31:47,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 04:31:47,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462530869] [2024-11-28 04:31:47,874 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:31:47,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:31:47,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:31:47,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:31:47,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=262, Unknown=1, NotChecked=0, Total=342 [2024-11-28 04:31:47,875 INFO L87 Difference]: Start difference. First operand 3591 states and 4890 transitions. Second operand has 16 states, 15 states have (on average 6.333333333333333) internal successors, (95), 16 states have internal predecessors, (95), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:31:50,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:31:50,189 INFO L93 Difference]: Finished difference Result 3635 states and 4938 transitions. [2024-11-28 04:31:50,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:31:50,190 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.333333333333333) internal successors, (95), 16 states have internal predecessors, (95), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 151 [2024-11-28 04:31:50,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:31:50,195 INFO L225 Difference]: With dead ends: 3635 [2024-11-28 04:31:50,195 INFO L226 Difference]: Without dead ends: 3634 [2024-11-28 04:31:50,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=91, Invalid=328, Unknown=1, NotChecked=0, Total=420 [2024-11-28 04:31:50,196 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 176 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:31:50,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 411 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:31:50,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2024-11-28 04:31:50,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3591. [2024-11-28 04:31:50,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3591 states, 3211 states have (on average 1.302086577390221) internal successors, (4181), 3234 states have internal predecessors, (4181), 354 states have call successors, (354), 2 states have call predecessors, (354), 2 states have return successors, (354), 354 states have call predecessors, (354), 354 states have call successors, (354) [2024-11-28 04:31:50,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 4889 transitions. [2024-11-28 04:31:50,810 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 4889 transitions. Word has length 151 [2024-11-28 04:31:50,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:31:50,811 INFO L471 AbstractCegarLoop]: Abstraction has 3591 states and 4889 transitions. [2024-11-28 04:31:50,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.333333333333333) internal successors, (95), 16 states have internal predecessors, (95), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:31:50,811 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 4889 transitions. [2024-11-28 04:31:50,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 04:31:50,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:31:50,813 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:31:50,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2024-11-28 04:31:51,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:51,013 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:31:51,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:31:51,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1326482624, now seen corresponding path program 6 times [2024-11-28 04:31:51,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:31:51,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462062318] [2024-11-28 04:31:51,014 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:31:51,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:31:51,037 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-11-28 04:31:51,037 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:31:51,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447921366] [2024-11-28 04:31:51,038 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:31:51,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:51,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:31:51,045 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:31:51,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-28 04:31:51,195 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-11-28 04:31:51,195 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:31:51,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:31:51,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:31:52,007 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 04:31:52,007 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:31:52,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:31:52,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462062318] [2024-11-28 04:31:52,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:31:52,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447921366] [2024-11-28 04:31:52,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447921366] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:31:52,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:31:52,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:31:52,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547463467] [2024-11-28 04:31:52,295 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:31:52,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:31:52,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:31:52,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:31:52,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:31:52,296 INFO L87 Difference]: Start difference. First operand 3591 states and 4889 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:31:53,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:31:53,465 INFO L93 Difference]: Finished difference Result 3627 states and 4928 transitions. [2024-11-28 04:31:53,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:31:53,465 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 151 [2024-11-28 04:31:53,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:31:53,474 INFO L225 Difference]: With dead ends: 3627 [2024-11-28 04:31:53,474 INFO L226 Difference]: Without dead ends: 3626 [2024-11-28 04:31:53,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:31:53,477 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 78 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:31:53,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 398 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:31:53,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3626 states. [2024-11-28 04:31:54,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3626 to 3591. [2024-11-28 04:31:54,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3591 states, 3211 states have (on average 1.301775147928994) internal successors, (4180), 3234 states have internal predecessors, (4180), 354 states have call successors, (354), 2 states have call predecessors, (354), 2 states have return successors, (354), 354 states have call predecessors, (354), 354 states have call successors, (354) [2024-11-28 04:31:54,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 4888 transitions. [2024-11-28 04:31:54,191 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 4888 transitions. Word has length 151 [2024-11-28 04:31:54,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:31:54,192 INFO L471 AbstractCegarLoop]: Abstraction has 3591 states and 4888 transitions. [2024-11-28 04:31:54,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 04:31:54,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 4888 transitions. [2024-11-28 04:31:54,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 04:31:54,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:31:54,194 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:31:54,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2024-11-28 04:31:54,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:54,399 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:31:54,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:31:54,399 INFO L85 PathProgramCache]: Analyzing trace with hash -2050383962, now seen corresponding path program 2 times [2024-11-28 04:31:54,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:31:54,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813867938] [2024-11-28 04:31:54,400 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:31:54,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:31:54,421 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:31:54,421 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:31:54,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261855367] [2024-11-28 04:31:54,422 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:31:54,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:54,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:31:54,427 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:31:54,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-28 04:31:54,528 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:31:54,528 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:31:54,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:31:54,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:31:56,071 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 3 proven. 105 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-28 04:31:56,072 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:04,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:04,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813867938] [2024-11-28 04:32:04,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:32:04,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261855367] [2024-11-28 04:32:04,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261855367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:04,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:04,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:32:04,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899043797] [2024-11-28 04:32:04,306 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:32:04,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:32:04,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:04,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:32:04,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=196, Unknown=2, NotChecked=0, Total=272 [2024-11-28 04:32:04,307 INFO L87 Difference]: Start difference. First operand 3591 states and 4888 transitions. Second operand has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:07,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:07,194 INFO L93 Difference]: Finished difference Result 3712 states and 5043 transitions. [2024-11-28 04:32:07,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:32:07,195 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 159 [2024-11-28 04:32:07,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:07,203 INFO L225 Difference]: With dead ends: 3712 [2024-11-28 04:32:07,203 INFO L226 Difference]: Without dead ends: 3711 [2024-11-28 04:32:07,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=113, Invalid=265, Unknown=2, NotChecked=0, Total=380 [2024-11-28 04:32:07,205 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 154 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:07,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 818 Invalid, 1609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1604 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 04:32:07,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3711 states. [2024-11-28 04:32:07,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3711 to 3591. [2024-11-28 04:32:07,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3591 states, 3211 states have (on average 1.301463718467767) internal successors, (4179), 3234 states have internal predecessors, (4179), 354 states have call successors, (354), 2 states have call predecessors, (354), 2 states have return successors, (354), 354 states have call predecessors, (354), 354 states have call successors, (354) [2024-11-28 04:32:07,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 4887 transitions. [2024-11-28 04:32:07,832 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 4887 transitions. Word has length 159 [2024-11-28 04:32:07,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:07,832 INFO L471 AbstractCegarLoop]: Abstraction has 3591 states and 4887 transitions. [2024-11-28 04:32:07,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:07,832 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 4887 transitions. [2024-11-28 04:32:07,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 04:32:07,834 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:07,834 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:07,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2024-11-28 04:32:08,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:08,035 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:32:08,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:08,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1015190092, now seen corresponding path program 3 times [2024-11-28 04:32:08,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:08,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175952866] [2024-11-28 04:32:08,035 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:32:08,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:08,068 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:32:08,068 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:32:08,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [976541649] [2024-11-28 04:32:08,069 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:32:08,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:08,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:08,072 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:08,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-28 04:32:08,185 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:32:08,185 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:32:08,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:32:08,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:09,834 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 3 proven. 105 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-28 04:32:09,834 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:14,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:14,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175952866] [2024-11-28 04:32:14,043 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:32:14,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976541649] [2024-11-28 04:32:14,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976541649] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:14,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:14,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:32:14,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625475023] [2024-11-28 04:32:14,044 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:32:14,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:32:14,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:14,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:32:14,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=174, Unknown=1, NotChecked=0, Total=240 [2024-11-28 04:32:14,045 INFO L87 Difference]: Start difference. First operand 3591 states and 4887 transitions. Second operand has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:16,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:16,266 INFO L93 Difference]: Finished difference Result 3732 states and 5059 transitions. [2024-11-28 04:32:16,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:32:16,267 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 159 [2024-11-28 04:32:16,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:16,272 INFO L225 Difference]: With dead ends: 3732 [2024-11-28 04:32:16,272 INFO L226 Difference]: Without dead ends: 3731 [2024-11-28 04:32:16,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=92, Invalid=249, Unknown=1, NotChecked=0, Total=342 [2024-11-28 04:32:16,274 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 175 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 1636 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:16,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 739 Invalid, 1639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1636 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:32:16,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2024-11-28 04:32:16,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 3591. [2024-11-28 04:32:16,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3591 states, 3211 states have (on average 1.3011522890065401) internal successors, (4178), 3234 states have internal predecessors, (4178), 354 states have call successors, (354), 2 states have call predecessors, (354), 2 states have return successors, (354), 354 states have call predecessors, (354), 354 states have call successors, (354) [2024-11-28 04:32:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 4886 transitions. [2024-11-28 04:32:16,778 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 4886 transitions. Word has length 159 [2024-11-28 04:32:16,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:16,778 INFO L471 AbstractCegarLoop]: Abstraction has 3591 states and 4886 transitions. [2024-11-28 04:32:16,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:16,778 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 4886 transitions. [2024-11-28 04:32:16,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 04:32:16,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:16,779 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:16,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2024-11-28 04:32:16,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:16,980 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:32:16,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:16,980 INFO L85 PathProgramCache]: Analyzing trace with hash -440501928, now seen corresponding path program 4 times [2024-11-28 04:32:16,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:16,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712831444] [2024-11-28 04:32:16,980 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:32:16,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:17,006 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:32:17,006 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:32:17,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [881225805] [2024-11-28 04:32:17,007 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:32:17,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:17,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:17,010 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:17,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-28 04:32:17,128 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:32:17,129 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:32:17,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:32:17,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:18,641 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 3 proven. 105 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-28 04:32:18,642 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:22,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:22,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712831444] [2024-11-28 04:32:22,820 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:32:22,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881225805] [2024-11-28 04:32:22,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881225805] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:22,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:22,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:32:22,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713298255] [2024-11-28 04:32:22,821 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:32:22,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:32:22,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:22,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:32:22,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=175, Unknown=1, NotChecked=0, Total=240 [2024-11-28 04:32:22,822 INFO L87 Difference]: Start difference. First operand 3591 states and 4886 transitions. Second operand has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:24,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:24,538 INFO L93 Difference]: Finished difference Result 3765 states and 5102 transitions. [2024-11-28 04:32:24,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:32:24,538 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 159 [2024-11-28 04:32:24,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:24,543 INFO L225 Difference]: With dead ends: 3765 [2024-11-28 04:32:24,543 INFO L226 Difference]: Without dead ends: 3763 [2024-11-28 04:32:24,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=103, Invalid=276, Unknown=1, NotChecked=0, Total=380 [2024-11-28 04:32:24,545 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 175 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:24,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 719 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:32:24,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3763 states. [2024-11-28 04:32:25,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3763 to 3614. [2024-11-28 04:32:25,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3614 states, 3232 states have (on average 1.3007425742574257) internal successors, (4204), 3255 states have internal predecessors, (4204), 356 states have call successors, (356), 2 states have call predecessors, (356), 2 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) [2024-11-28 04:32:25,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3614 states to 3614 states and 4916 transitions. [2024-11-28 04:32:25,009 INFO L78 Accepts]: Start accepts. Automaton has 3614 states and 4916 transitions. Word has length 159 [2024-11-28 04:32:25,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:25,009 INFO L471 AbstractCegarLoop]: Abstraction has 3614 states and 4916 transitions. [2024-11-28 04:32:25,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:25,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3614 states and 4916 transitions. [2024-11-28 04:32:25,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 04:32:25,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:25,010 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:25,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-11-28 04:32:25,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:25,211 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:32:25,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:25,211 INFO L85 PathProgramCache]: Analyzing trace with hash 594691942, now seen corresponding path program 3 times [2024-11-28 04:32:25,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:25,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818498442] [2024-11-28 04:32:25,212 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:32:25,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:25,242 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:32:25,242 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:32:25,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2117455495] [2024-11-28 04:32:25,243 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:32:25,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:25,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:25,251 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:25,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-11-28 04:32:25,348 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:32:25,348 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:32:25,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:32:25,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:26,814 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 6 proven. 117 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 04:32:26,814 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:31,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:31,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818498442] [2024-11-28 04:32:31,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:32:31,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117455495] [2024-11-28 04:32:31,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117455495] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:31,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:31,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:32:31,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537922950] [2024-11-28 04:32:31,036 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:32:31,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:32:31,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:31,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:32:31,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=194, Unknown=1, NotChecked=0, Total=240 [2024-11-28 04:32:31,037 INFO L87 Difference]: Start difference. First operand 3614 states and 4916 transitions. Second operand has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:32,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:32,835 INFO L93 Difference]: Finished difference Result 3819 states and 5191 transitions. [2024-11-28 04:32:32,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:32:32,835 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 159 [2024-11-28 04:32:32,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:32,842 INFO L225 Difference]: With dead ends: 3819 [2024-11-28 04:32:32,842 INFO L226 Difference]: Without dead ends: 3811 [2024-11-28 04:32:32,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=99, Invalid=406, Unknown=1, NotChecked=0, Total=506 [2024-11-28 04:32:32,844 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 174 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:32,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 568 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:32:32,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2024-11-28 04:32:33,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 3607. [2024-11-28 04:32:33,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3607 states, 3225 states have (on average 1.29984496124031) internal successors, (4192), 3248 states have internal predecessors, (4192), 356 states have call successors, (356), 2 states have call predecessors, (356), 2 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) [2024-11-28 04:32:33,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3607 states to 3607 states and 4904 transitions. [2024-11-28 04:32:33,324 INFO L78 Accepts]: Start accepts. Automaton has 3607 states and 4904 transitions. Word has length 159 [2024-11-28 04:32:33,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:33,325 INFO L471 AbstractCegarLoop]: Abstraction has 3607 states and 4904 transitions. [2024-11-28 04:32:33,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:33,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3607 states and 4904 transitions. [2024-11-28 04:32:33,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 04:32:33,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:33,326 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:33,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2024-11-28 04:32:33,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2024-11-28 04:32:33,531 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:32:33,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:33,531 INFO L85 PathProgramCache]: Analyzing trace with hash 36334395, now seen corresponding path program 2 times [2024-11-28 04:32:33,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:33,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828721842] [2024-11-28 04:32:33,531 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:32:33,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:33,547 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:32:33,548 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:32:33,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [395730557] [2024-11-28 04:32:33,549 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:32:33,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:33,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:33,552 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:33,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-11-28 04:32:33,622 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:32:33,622 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:32:33,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:32:33,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:34,658 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 3 proven. 114 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-28 04:32:34,658 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:35,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:35,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828721842] [2024-11-28 04:32:35,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:32:35,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395730557] [2024-11-28 04:32:35,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395730557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:35,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:35,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:32:35,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369944618] [2024-11-28 04:32:35,027 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:32:35,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:32:35,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:35,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:32:35,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:32:35,028 INFO L87 Difference]: Start difference. First operand 3607 states and 4904 transitions. Second operand has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:36,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:36,999 INFO L93 Difference]: Finished difference Result 3718 states and 5051 transitions. [2024-11-28 04:32:36,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:32:36,999 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 162 [2024-11-28 04:32:37,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:37,004 INFO L225 Difference]: With dead ends: 3718 [2024-11-28 04:32:37,004 INFO L226 Difference]: Without dead ends: 3716 [2024-11-28 04:32:37,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:32:37,006 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 164 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1688 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:37,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 619 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1688 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:32:37,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3716 states. [2024-11-28 04:32:37,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3716 to 3673. [2024-11-28 04:32:37,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3673 states, 3284 states have (on average 1.299634591961023) internal successors, (4268), 3307 states have internal predecessors, (4268), 363 states have call successors, (363), 2 states have call predecessors, (363), 2 states have return successors, (363), 363 states have call predecessors, (363), 363 states have call successors, (363) [2024-11-28 04:32:37,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3673 states to 3673 states and 4994 transitions. [2024-11-28 04:32:37,487 INFO L78 Accepts]: Start accepts. Automaton has 3673 states and 4994 transitions. Word has length 162 [2024-11-28 04:32:37,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:37,487 INFO L471 AbstractCegarLoop]: Abstraction has 3673 states and 4994 transitions. [2024-11-28 04:32:37,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:37,488 INFO L276 IsEmpty]: Start isEmpty. Operand 3673 states and 4994 transitions. [2024-11-28 04:32:37,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 04:32:37,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:37,489 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:37,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2024-11-28 04:32:37,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:37,689 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:32:37,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:37,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1631730285, now seen corresponding path program 3 times [2024-11-28 04:32:37,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:37,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074049491] [2024-11-28 04:32:37,690 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:32:37,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:37,724 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:32:37,724 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:32:37,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241439627] [2024-11-28 04:32:37,725 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:32:37,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:37,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:37,728 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:37,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-11-28 04:32:37,828 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:32:37,828 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:32:37,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:32:37,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:38,782 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 114 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 04:32:38,782 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:39,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:39,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074049491] [2024-11-28 04:32:39,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:32:39,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241439627] [2024-11-28 04:32:39,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241439627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:39,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:39,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:32:39,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850371869] [2024-11-28 04:32:39,063 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:32:39,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:32:39,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:39,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:32:39,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:32:39,064 INFO L87 Difference]: Start difference. First operand 3673 states and 4994 transitions. Second operand has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:40,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:40,288 INFO L93 Difference]: Finished difference Result 3846 states and 5215 transitions. [2024-11-28 04:32:40,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:32:40,289 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 162 [2024-11-28 04:32:40,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:40,293 INFO L225 Difference]: With dead ends: 3846 [2024-11-28 04:32:40,293 INFO L226 Difference]: Without dead ends: 3845 [2024-11-28 04:32:40,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:32:40,294 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 154 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:40,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 609 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:32:40,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3845 states. [2024-11-28 04:32:40,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3845 to 3673. [2024-11-28 04:32:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3673 states, 3284 states have (on average 1.2993300852618757) internal successors, (4267), 3307 states have internal predecessors, (4267), 363 states have call successors, (363), 2 states have call predecessors, (363), 2 states have return successors, (363), 363 states have call predecessors, (363), 363 states have call successors, (363) [2024-11-28 04:32:40,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3673 states to 3673 states and 4993 transitions. [2024-11-28 04:32:40,705 INFO L78 Accepts]: Start accepts. Automaton has 3673 states and 4993 transitions. Word has length 162 [2024-11-28 04:32:40,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:40,706 INFO L471 AbstractCegarLoop]: Abstraction has 3673 states and 4993 transitions. [2024-11-28 04:32:40,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:40,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3673 states and 4993 transitions. [2024-11-28 04:32:40,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 04:32:40,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:40,707 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:40,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2024-11-28 04:32:40,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:40,908 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:32:40,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:40,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1867785143, now seen corresponding path program 4 times [2024-11-28 04:32:40,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:40,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215903615] [2024-11-28 04:32:40,908 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:32:40,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:40,928 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:32:40,929 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:32:40,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [10758601] [2024-11-28 04:32:40,930 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:32:40,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:40,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:40,932 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:40,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-11-28 04:32:41,022 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:32:41,022 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:32:41,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:32:41,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:42,202 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-28 04:32:42,202 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:42,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:42,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215903615] [2024-11-28 04:32:42,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:32:42,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10758601] [2024-11-28 04:32:42,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10758601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:42,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:42,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:32:42,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121827852] [2024-11-28 04:32:42,537 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:32:42,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:32:42,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:42,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:32:42,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:32:42,538 INFO L87 Difference]: Start difference. First operand 3673 states and 4993 transitions. Second operand has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 14 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:44,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:44,468 INFO L93 Difference]: Finished difference Result 3882 states and 5238 transitions. [2024-11-28 04:32:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:32:44,468 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 14 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 162 [2024-11-28 04:32:44,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:44,473 INFO L225 Difference]: With dead ends: 3882 [2024-11-28 04:32:44,474 INFO L226 Difference]: Without dead ends: 3880 [2024-11-28 04:32:44,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:32:44,475 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 180 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:44,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 934 Invalid, 1862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:32:44,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3880 states. [2024-11-28 04:32:45,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3880 to 3673. [2024-11-28 04:32:45,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3673 states, 3284 states have (on average 1.297807551766139) internal successors, (4262), 3307 states have internal predecessors, (4262), 363 states have call successors, (363), 2 states have call predecessors, (363), 2 states have return successors, (363), 363 states have call predecessors, (363), 363 states have call successors, (363) [2024-11-28 04:32:45,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3673 states to 3673 states and 4988 transitions. [2024-11-28 04:32:45,063 INFO L78 Accepts]: Start accepts. Automaton has 3673 states and 4988 transitions. Word has length 162 [2024-11-28 04:32:45,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:45,063 INFO L471 AbstractCegarLoop]: Abstraction has 3673 states and 4988 transitions. [2024-11-28 04:32:45,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 14 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:45,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3673 states and 4988 transitions. [2024-11-28 04:32:45,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-28 04:32:45,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:45,064 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:45,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2024-11-28 04:32:45,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2024-11-28 04:32:45,265 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:32:45,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:45,265 INFO L85 PathProgramCache]: Analyzing trace with hash 145867818, now seen corresponding path program 2 times [2024-11-28 04:32:45,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:45,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221121730] [2024-11-28 04:32:45,265 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:32:45,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:45,287 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:32:45,287 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:32:45,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557129008] [2024-11-28 04:32:45,288 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:32:45,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:45,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:45,293 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:45,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2024-11-28 04:32:45,367 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:32:45,367 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:32:45,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:32:45,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:46,179 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 83 proven. 49 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-28 04:32:46,179 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:46,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:46,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221121730] [2024-11-28 04:32:46,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:32:46,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557129008] [2024-11-28 04:32:46,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557129008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:46,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:46,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:32:46,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034949122] [2024-11-28 04:32:46,246 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:32:46,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:32:46,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:46,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:32:46,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:32:46,247 INFO L87 Difference]: Start difference. First operand 3673 states and 4988 transitions. Second operand has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 10 states have internal predecessors, (102), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:47,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:47,419 INFO L93 Difference]: Finished difference Result 3901 states and 5271 transitions. [2024-11-28 04:32:47,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:32:47,419 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 10 states have internal predecessors, (102), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 163 [2024-11-28 04:32:47,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:47,423 INFO L225 Difference]: With dead ends: 3901 [2024-11-28 04:32:47,423 INFO L226 Difference]: Without dead ends: 3892 [2024-11-28 04:32:47,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:32:47,424 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 279 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:47,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 222 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:32:47,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3892 states. [2024-11-28 04:32:47,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3892 to 3426. [2024-11-28 04:32:47,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3426 states, 3064 states have (on average 1.2839425587467364) internal successors, (3934), 3085 states have internal predecessors, (3934), 338 states have call successors, (338), 2 states have call predecessors, (338), 2 states have return successors, (338), 338 states have call predecessors, (338), 338 states have call successors, (338) [2024-11-28 04:32:47,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 4610 transitions. [2024-11-28 04:32:47,808 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 4610 transitions. Word has length 163 [2024-11-28 04:32:47,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:47,809 INFO L471 AbstractCegarLoop]: Abstraction has 3426 states and 4610 transitions. [2024-11-28 04:32:47,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 10 states have internal predecessors, (102), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:32:47,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 4610 transitions. [2024-11-28 04:32:47,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 04:32:47,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:47,810 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:47,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2024-11-28 04:32:48,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2024-11-28 04:32:48,010 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:32:48,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:48,010 INFO L85 PathProgramCache]: Analyzing trace with hash 557617437, now seen corresponding path program 2 times [2024-11-28 04:32:48,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:48,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30493868] [2024-11-28 04:32:48,011 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:32:48,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:48,024 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:32:48,024 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:32:48,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292113616] [2024-11-28 04:32:48,025 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:32:48,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:48,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:48,027 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:48,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2024-11-28 04:32:48,103 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:32:48,103 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:32:48,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:32:48,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:48,831 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-28 04:32:48,831 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:48,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:48,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30493868] [2024-11-28 04:32:48,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:32:48,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292113616] [2024-11-28 04:32:48,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292113616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:48,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:48,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:32:48,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514327490] [2024-11-28 04:32:48,979 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:32:48,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:32:48,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:48,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:32:48,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:32:48,980 INFO L87 Difference]: Start difference. First operand 3426 states and 4610 transitions. Second operand has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 04:32:53,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:53,279 INFO L93 Difference]: Finished difference Result 5408 states and 7333 transitions. [2024-11-28 04:32:53,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 04:32:53,280 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 164 [2024-11-28 04:32:53,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:53,286 INFO L225 Difference]: With dead ends: 5408 [2024-11-28 04:32:53,286 INFO L226 Difference]: Without dead ends: 5404 [2024-11-28 04:32:53,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=346, Invalid=1136, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 04:32:53,287 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 622 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 2487 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:53,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 678 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2487 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 04:32:53,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5404 states. [2024-11-28 04:32:53,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5404 to 3624. [2024-11-28 04:32:53,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3243 states have (on average 1.2864631514030218) internal successors, (4172), 3264 states have internal predecessors, (4172), 357 states have call successors, (357), 2 states have call predecessors, (357), 2 states have return successors, (357), 357 states have call predecessors, (357), 357 states have call successors, (357) [2024-11-28 04:32:53,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 4886 transitions. [2024-11-28 04:32:53,691 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 4886 transitions. Word has length 164 [2024-11-28 04:32:53,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:53,691 INFO L471 AbstractCegarLoop]: Abstraction has 3624 states and 4886 transitions. [2024-11-28 04:32:53,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 04:32:53,692 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 4886 transitions. [2024-11-28 04:32:53,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-28 04:32:53,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:53,692 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:53,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2024-11-28 04:32:53,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2024-11-28 04:32:53,893 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:32:53,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:53,893 INFO L85 PathProgramCache]: Analyzing trace with hash -68559059, now seen corresponding path program 1 times [2024-11-28 04:32:53,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:53,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286445742] [2024-11-28 04:32:53,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:53,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:54,021 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 48 proven. 12 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-28 04:32:54,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:54,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286445742] [2024-11-28 04:32:54,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286445742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:54,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992506857] [2024-11-28 04:32:54,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:54,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:54,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:54,024 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:54,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2024-11-28 04:32:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:54,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:32:54,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:54,243 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 48 proven. 12 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-28 04:32:54,243 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:54,463 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 48 proven. 12 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-28 04:32:54,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992506857] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:32:54,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:32:54,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 04:32:54,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628858897] [2024-11-28 04:32:54,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:32:54,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:32:54,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:54,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:32:54,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:32:54,465 INFO L87 Difference]: Start difference. First operand 3624 states and 4886 transitions. Second operand has 8 states, 7 states have (on average 19.285714285714285) internal successors, (135), 8 states have internal predecessors, (135), 4 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-28 04:32:55,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:55,456 INFO L93 Difference]: Finished difference Result 3626 states and 4888 transitions. [2024-11-28 04:32:55,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:32:55,456 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 19.285714285714285) internal successors, (135), 8 states have internal predecessors, (135), 4 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 166 [2024-11-28 04:32:55,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:55,462 INFO L225 Difference]: With dead ends: 3626 [2024-11-28 04:32:55,462 INFO L226 Difference]: Without dead ends: 3604 [2024-11-28 04:32:55,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:32:55,463 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 24 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:55,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 188 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:32:55,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3604 states. [2024-11-28 04:32:55,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3604 to 3602. [2024-11-28 04:32:55,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3602 states, 3225 states have (on average 1.284031007751938) internal successors, (4141), 3244 states have internal predecessors, (4141), 355 states have call successors, (355), 2 states have call predecessors, (355), 2 states have return successors, (355), 355 states have call predecessors, (355), 355 states have call successors, (355) [2024-11-28 04:32:55,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3602 states to 3602 states and 4851 transitions. [2024-11-28 04:32:55,930 INFO L78 Accepts]: Start accepts. Automaton has 3602 states and 4851 transitions. Word has length 166 [2024-11-28 04:32:55,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:55,930 INFO L471 AbstractCegarLoop]: Abstraction has 3602 states and 4851 transitions. [2024-11-28 04:32:55,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 19.285714285714285) internal successors, (135), 8 states have internal predecessors, (135), 4 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-28 04:32:55,930 INFO L276 IsEmpty]: Start isEmpty. Operand 3602 states and 4851 transitions. [2024-11-28 04:32:55,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 04:32:55,931 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:55,931 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:55,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2024-11-28 04:32:56,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:56,132 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:32:56,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:56,132 INFO L85 PathProgramCache]: Analyzing trace with hash -666405522, now seen corresponding path program 3 times [2024-11-28 04:32:56,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:56,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579977658] [2024-11-28 04:32:56,132 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:32:56,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:56,157 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:32:56,158 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:32:56,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1883750139] [2024-11-28 04:32:56,159 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:32:56,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:56,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:56,165 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:56,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2024-11-28 04:32:56,234 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:32:56,235 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:32:56,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:32:56,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:57,599 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 58 proven. 63 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-11-28 04:32:57,600 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:58,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:58,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579977658] [2024-11-28 04:32:58,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:32:58,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883750139] [2024-11-28 04:32:58,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883750139] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:58,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:58,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:32:58,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217588766] [2024-11-28 04:32:58,159 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:32:58,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:32:58,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:58,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:32:58,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:32:58,160 INFO L87 Difference]: Start difference. First operand 3602 states and 4851 transitions. Second operand has 11 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:33:03,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:33:06,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:33:08,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:33:10,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:33:11,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:11,842 INFO L93 Difference]: Finished difference Result 3637 states and 4883 transitions. [2024-11-28 04:33:11,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:33:11,842 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 170 [2024-11-28 04:33:11,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:11,846 INFO L225 Difference]: With dead ends: 3637 [2024-11-28 04:33:11,846 INFO L226 Difference]: Without dead ends: 3607 [2024-11-28 04:33:11,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=154, Invalid=496, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:33:11,848 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 177 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 23 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:11,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 344 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 801 Invalid, 4 Unknown, 0 Unchecked, 12.5s Time] [2024-11-28 04:33:11,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2024-11-28 04:33:12,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 3476. [2024-11-28 04:33:12,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3476 states, 3113 states have (on average 1.28236427883071) internal successors, (3992), 3132 states have internal predecessors, (3992), 341 states have call successors, (341), 2 states have call predecessors, (341), 2 states have return successors, (341), 341 states have call predecessors, (341), 341 states have call successors, (341) [2024-11-28 04:33:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3476 states to 3476 states and 4674 transitions. [2024-11-28 04:33:12,238 INFO L78 Accepts]: Start accepts. Automaton has 3476 states and 4674 transitions. Word has length 170 [2024-11-28 04:33:12,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:12,239 INFO L471 AbstractCegarLoop]: Abstraction has 3476 states and 4674 transitions. [2024-11-28 04:33:12,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:33:12,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3476 states and 4674 transitions. [2024-11-28 04:33:12,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 04:33:12,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:12,240 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:12,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2024-11-28 04:33:12,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:12,440 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:33:12,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:12,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2071851680, now seen corresponding path program 2 times [2024-11-28 04:33:12,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:12,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928102144] [2024-11-28 04:33:12,441 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:33:12,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:12,454 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:33:12,454 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:33:12,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1794150290] [2024-11-28 04:33:12,455 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:33:12,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:12,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:12,457 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:33:12,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-11-28 04:33:12,529 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:33:12,529 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:33:12,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:33:12,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:13,605 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:33:13,605 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:33:21,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:21,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928102144] [2024-11-28 04:33:21,797 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:33:21,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794150290] [2024-11-28 04:33:21,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794150290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:21,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:33:21,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:33:21,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480226073] [2024-11-28 04:33:21,797 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:33:21,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:33:21,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:21,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:33:21,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=152, Unknown=2, NotChecked=0, Total=210 [2024-11-28 04:33:21,798 INFO L87 Difference]: Start difference. First operand 3476 states and 4674 transitions. Second operand has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:33:23,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:23,135 INFO L93 Difference]: Finished difference Result 3562 states and 4774 transitions. [2024-11-28 04:33:23,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:33:23,136 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 170 [2024-11-28 04:33:23,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:23,139 INFO L225 Difference]: With dead ends: 3562 [2024-11-28 04:33:23,139 INFO L226 Difference]: Without dead ends: 3560 [2024-11-28 04:33:23,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=83, Invalid=221, Unknown=2, NotChecked=0, Total=306 [2024-11-28 04:33:23,140 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 151 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:23,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 623 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:33:23,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3560 states. [2024-11-28 04:33:23,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3560 to 3489. [2024-11-28 04:33:23,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3489 states, 3125 states have (on average 1.2832) internal successors, (4010), 3144 states have internal predecessors, (4010), 342 states have call successors, (342), 2 states have call predecessors, (342), 2 states have return successors, (342), 342 states have call predecessors, (342), 342 states have call successors, (342) [2024-11-28 04:33:23,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3489 states to 3489 states and 4694 transitions. [2024-11-28 04:33:23,509 INFO L78 Accepts]: Start accepts. Automaton has 3489 states and 4694 transitions. Word has length 170 [2024-11-28 04:33:23,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:23,509 INFO L471 AbstractCegarLoop]: Abstraction has 3489 states and 4694 transitions. [2024-11-28 04:33:23,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:33:23,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3489 states and 4694 transitions. [2024-11-28 04:33:23,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 04:33:23,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:23,510 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:23,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2024-11-28 04:33:23,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:23,711 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:33:23,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:23,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1501169540, now seen corresponding path program 3 times [2024-11-28 04:33:23,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:23,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783353101] [2024-11-28 04:33:23,711 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:33:23,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:23,732 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:33:23,732 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:33:23,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031460814] [2024-11-28 04:33:23,733 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:33:23,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:23,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:23,737 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:33:23,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2024-11-28 04:33:23,853 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:33:23,853 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:33:23,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 04:33:23,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:40,448 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 54 proven. 106 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-28 04:33:40,449 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:34:11,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:11,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783353101] [2024-11-28 04:34:11,371 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:11,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031460814] [2024-11-28 04:34:11,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031460814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:11,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:34:11,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:34:11,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547283416] [2024-11-28 04:34:11,371 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:34:11,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:34:11,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:11,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:34:11,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=336, Unknown=5, NotChecked=0, Total=420 [2024-11-28 04:34:11,372 INFO L87 Difference]: Start difference. First operand 3489 states and 4694 transitions. Second operand has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 6 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:34:13,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:34:15,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:34:19,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:34:26,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:34:27,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:34:29,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:34:31,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:34:32,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:34:36,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:34:37,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:34:39,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:34:42,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:34:48,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:34:49,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:49,341 INFO L93 Difference]: Finished difference Result 3761 states and 5020 transitions. [2024-11-28 04:34:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:34:49,342 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 6 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 170 [2024-11-28 04:34:49,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:49,345 INFO L225 Difference]: With dead ends: 3761 [2024-11-28 04:34:49,345 INFO L226 Difference]: Without dead ends: 3760 [2024-11-28 04:34:49,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 44.0s TimeCoverageRelationStatistics Valid=95, Invalid=406, Unknown=5, NotChecked=0, Total=506 [2024-11-28 04:34:49,346 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 287 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 1890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:49,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 664 Invalid, 1890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1874 Invalid, 1 Unknown, 0 Unchecked, 37.3s Time] [2024-11-28 04:34:49,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3760 states. [2024-11-28 04:34:49,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3760 to 3489. [2024-11-28 04:34:49,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3489 states, 3125 states have (on average 1.28256) internal successors, (4008), 3144 states have internal predecessors, (4008), 342 states have call successors, (342), 2 states have call predecessors, (342), 2 states have return successors, (342), 342 states have call predecessors, (342), 342 states have call successors, (342) [2024-11-28 04:34:49,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3489 states to 3489 states and 4692 transitions. [2024-11-28 04:34:49,782 INFO L78 Accepts]: Start accepts. Automaton has 3489 states and 4692 transitions. Word has length 170 [2024-11-28 04:34:49,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:49,783 INFO L471 AbstractCegarLoop]: Abstraction has 3489 states and 4692 transitions. [2024-11-28 04:34:49,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 6 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:34:49,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3489 states and 4692 transitions. [2024-11-28 04:34:49,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:34:49,784 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:49,785 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:49,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2024-11-28 04:34:49,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:49,989 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:34:49,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:49,989 INFO L85 PathProgramCache]: Analyzing trace with hash -441536402, now seen corresponding path program 2 times [2024-11-28 04:34:49,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:49,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467600119] [2024-11-28 04:34:49,990 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:34:49,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:50,003 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:34:50,003 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:34:50,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [603910125] [2024-11-28 04:34:50,004 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:34:50,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:50,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:50,008 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:50,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2024-11-28 04:34:50,097 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:34:50,098 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:34:50,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:34:50,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:51,530 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 3 proven. 135 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:34:51,531 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:34:51,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:51,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467600119] [2024-11-28 04:34:51,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:51,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603910125] [2024-11-28 04:34:51,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603910125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:51,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:34:51,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:34:51,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542071029] [2024-11-28 04:34:51,877 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:34:51,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:34:51,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:51,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:34:51,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:34:51,877 INFO L87 Difference]: Start difference. First operand 3489 states and 4692 transitions. Second operand has 13 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:34:53,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:53,212 INFO L93 Difference]: Finished difference Result 3542 states and 4747 transitions. [2024-11-28 04:34:53,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:34:53,213 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 173 [2024-11-28 04:34:53,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:53,217 INFO L225 Difference]: With dead ends: 3542 [2024-11-28 04:34:53,217 INFO L226 Difference]: Without dead ends: 3515 [2024-11-28 04:34:53,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:34:53,218 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 129 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:53,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 664 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:34:53,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2024-11-28 04:34:53,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 3489. [2024-11-28 04:34:53,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3489 states, 3125 states have (on average 1.28096) internal successors, (4003), 3144 states have internal predecessors, (4003), 342 states have call successors, (342), 2 states have call predecessors, (342), 2 states have return successors, (342), 342 states have call predecessors, (342), 342 states have call successors, (342) [2024-11-28 04:34:53,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3489 states to 3489 states and 4687 transitions. [2024-11-28 04:34:53,631 INFO L78 Accepts]: Start accepts. Automaton has 3489 states and 4687 transitions. Word has length 173 [2024-11-28 04:34:53,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:53,631 INFO L471 AbstractCegarLoop]: Abstraction has 3489 states and 4687 transitions. [2024-11-28 04:34:53,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:34:53,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3489 states and 4687 transitions. [2024-11-28 04:34:53,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:34:53,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:53,633 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:53,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:53,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:53,837 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:34:53,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:53,837 INFO L85 PathProgramCache]: Analyzing trace with hash -2142204654, now seen corresponding path program 3 times [2024-11-28 04:34:53,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:53,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750045711] [2024-11-28 04:34:53,837 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:34:53,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:53,862 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:34:53,862 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:34:53,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466697709] [2024-11-28 04:34:53,863 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:34:53,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:53,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:53,868 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:53,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2024-11-28 04:34:54,073 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:34:54,074 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:34:54,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:34:54,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:55,237 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-28 04:34:55,237 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:34:55,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:55,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750045711] [2024-11-28 04:34:55,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:55,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466697709] [2024-11-28 04:34:55,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466697709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:55,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:34:55,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:34:55,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520542139] [2024-11-28 04:34:55,699 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:34:55,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:34:55,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:55,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:34:55,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:34:55,700 INFO L87 Difference]: Start difference. First operand 3489 states and 4687 transitions. Second operand has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:34:57,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:57,017 INFO L93 Difference]: Finished difference Result 3576 states and 4789 transitions. [2024-11-28 04:34:57,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:34:57,017 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 173 [2024-11-28 04:34:57,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:57,021 INFO L225 Difference]: With dead ends: 3576 [2024-11-28 04:34:57,021 INFO L226 Difference]: Without dead ends: 3549 [2024-11-28 04:34:57,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:34:57,022 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 150 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:57,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 450 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:34:57,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3549 states. [2024-11-28 04:34:57,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3549 to 3522. [2024-11-28 04:34:57,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3522 states, 3155 states have (on average 1.2805071315372425) internal successors, (4040), 3174 states have internal predecessors, (4040), 345 states have call successors, (345), 2 states have call predecessors, (345), 2 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2024-11-28 04:34:57,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3522 states to 3522 states and 4730 transitions. [2024-11-28 04:34:57,474 INFO L78 Accepts]: Start accepts. Automaton has 3522 states and 4730 transitions. Word has length 173 [2024-11-28 04:34:57,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:57,474 INFO L471 AbstractCegarLoop]: Abstraction has 3522 states and 4730 transitions. [2024-11-28 04:34:57,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:34:57,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3522 states and 4730 transitions. [2024-11-28 04:34:57,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:34:57,475 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:57,475 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:57,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:57,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:57,676 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:34:57,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:57,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1035752800, now seen corresponding path program 4 times [2024-11-28 04:34:57,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:57,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982033983] [2024-11-28 04:34:57,677 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:34:57,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:57,695 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:34:57,695 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:34:57,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636180998] [2024-11-28 04:34:57,696 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:34:57,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:57,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:57,700 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:57,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2024-11-28 04:34:57,790 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:34:57,790 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:34:57,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:34:57,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:34:59,269 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:34:59,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:59,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982033983] [2024-11-28 04:34:59,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:34:59,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636180998] [2024-11-28 04:34:59,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636180998] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:59,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:34:59,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 04:34:59,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101380409] [2024-11-28 04:34:59,698 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:34:59,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:34:59,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:59,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:34:59,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:34:59,699 INFO L87 Difference]: Start difference. First operand 3522 states and 4730 transitions. Second operand has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 15 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:35:01,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:01,844 INFO L93 Difference]: Finished difference Result 3635 states and 4866 transitions. [2024-11-28 04:35:01,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:35:01,844 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 15 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 173 [2024-11-28 04:35:01,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:01,848 INFO L225 Difference]: With dead ends: 3635 [2024-11-28 04:35:01,848 INFO L226 Difference]: Without dead ends: 3608 [2024-11-28 04:35:01,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:35:01,850 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 191 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:01,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 582 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:35:01,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3608 states. [2024-11-28 04:35:02,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3608 to 3540. [2024-11-28 04:35:02,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3540 states, 3172 states have (on average 1.280264817150063) internal successors, (4061), 3191 states have internal predecessors, (4061), 346 states have call successors, (346), 2 states have call predecessors, (346), 2 states have return successors, (346), 346 states have call predecessors, (346), 346 states have call successors, (346) [2024-11-28 04:35:02,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 4753 transitions. [2024-11-28 04:35:02,299 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 4753 transitions. Word has length 173 [2024-11-28 04:35:02,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:02,299 INFO L471 AbstractCegarLoop]: Abstraction has 3540 states and 4753 transitions. [2024-11-28 04:35:02,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 15 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:35:02,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 4753 transitions. [2024-11-28 04:35:02,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 04:35:02,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:02,301 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:02,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2024-11-28 04:35:02,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2024-11-28 04:35:02,502 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:35:02,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:02,503 INFO L85 PathProgramCache]: Analyzing trace with hash -742995598, now seen corresponding path program 2 times [2024-11-28 04:35:02,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:02,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69322438] [2024-11-28 04:35:02,503 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:35:02,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:02,520 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:35:02,520 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:35:02,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [283389766] [2024-11-28 04:35:02,521 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:35:02,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:02,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:02,525 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:02,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2024-11-28 04:35:02,607 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:35:02,608 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:35:02,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:35:02,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:04,689 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 40 proven. 113 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:35:04,690 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:06,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:06,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69322438] [2024-11-28 04:35:06,659 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:06,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283389766] [2024-11-28 04:35:06,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283389766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:06,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:06,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 04:35:06,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617628192] [2024-11-28 04:35:06,660 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:06,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:35:06,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:06,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:35:06,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:35:06,661 INFO L87 Difference]: Start difference. First operand 3540 states and 4753 transitions. Second operand has 15 states, 14 states have (on average 7.714285714285714) internal successors, (108), 14 states have internal predecessors, (108), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:35:09,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:09,992 INFO L93 Difference]: Finished difference Result 4626 states and 6243 transitions. [2024-11-28 04:35:09,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:35:09,993 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.714285714285714) internal successors, (108), 14 states have internal predecessors, (108), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 174 [2024-11-28 04:35:09,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:09,999 INFO L225 Difference]: With dead ends: 4626 [2024-11-28 04:35:09,999 INFO L226 Difference]: Without dead ends: 4621 [2024-11-28 04:35:10,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=212, Invalid=600, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:35:10,001 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 401 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 2184 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 2221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:10,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 754 Invalid, 2221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2184 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 04:35:10,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4621 states. [2024-11-28 04:35:10,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4621 to 4087. [2024-11-28 04:35:10,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4087 states, 3665 states have (on average 1.2870395634379264) internal successors, (4717), 3684 states have internal predecessors, (4717), 400 states have call successors, (400), 2 states have call predecessors, (400), 2 states have return successors, (400), 400 states have call predecessors, (400), 400 states have call successors, (400) [2024-11-28 04:35:10,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4087 states to 4087 states and 5517 transitions. [2024-11-28 04:35:10,609 INFO L78 Accepts]: Start accepts. Automaton has 4087 states and 5517 transitions. Word has length 174 [2024-11-28 04:35:10,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:10,610 INFO L471 AbstractCegarLoop]: Abstraction has 4087 states and 5517 transitions. [2024-11-28 04:35:10,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.714285714285714) internal successors, (108), 14 states have internal predecessors, (108), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:35:10,610 INFO L276 IsEmpty]: Start isEmpty. Operand 4087 states and 5517 transitions. [2024-11-28 04:35:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 04:35:10,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:10,611 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:10,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2024-11-28 04:35:10,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2024-11-28 04:35:10,812 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:35:10,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:10,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1558026974, now seen corresponding path program 2 times [2024-11-28 04:35:10,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:10,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792925710] [2024-11-28 04:35:10,812 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:35:10,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:10,829 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:35:10,829 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:35:10,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [919106141] [2024-11-28 04:35:10,830 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:35:10,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:10,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:10,837 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:10,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2024-11-28 04:35:10,926 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:35:10,926 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:35:10,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:35:10,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 89 proven. 67 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:35:11,703 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:11,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:11,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792925710] [2024-11-28 04:35:11,866 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:11,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919106141] [2024-11-28 04:35:11,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919106141] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:11,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:11,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:35:11,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91670852] [2024-11-28 04:35:11,867 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:11,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:35:11,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:11,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:35:11,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:35:11,868 INFO L87 Difference]: Start difference. First operand 4087 states and 5517 transitions. Second operand has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:35:14,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:14,603 INFO L93 Difference]: Finished difference Result 5040 states and 6786 transitions. [2024-11-28 04:35:14,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:35:14,604 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 175 [2024-11-28 04:35:14,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:14,610 INFO L225 Difference]: With dead ends: 5040 [2024-11-28 04:35:14,610 INFO L226 Difference]: Without dead ends: 5010 [2024-11-28 04:35:14,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:35:14,612 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 366 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:14,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 588 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:35:14,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5010 states. [2024-11-28 04:35:15,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5010 to 4474. [2024-11-28 04:35:15,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4474 states, 4013 states have (on average 1.2853227012210315) internal successors, (5158), 4032 states have internal predecessors, (5158), 439 states have call successors, (439), 2 states have call predecessors, (439), 2 states have return successors, (439), 439 states have call predecessors, (439), 439 states have call successors, (439) [2024-11-28 04:35:15,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4474 states to 4474 states and 6036 transitions. [2024-11-28 04:35:15,187 INFO L78 Accepts]: Start accepts. Automaton has 4474 states and 6036 transitions. Word has length 175 [2024-11-28 04:35:15,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:15,187 INFO L471 AbstractCegarLoop]: Abstraction has 4474 states and 6036 transitions. [2024-11-28 04:35:15,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 04:35:15,187 INFO L276 IsEmpty]: Start isEmpty. Operand 4474 states and 6036 transitions. [2024-11-28 04:35:15,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-28 04:35:15,188 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:15,188 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:15,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2024-11-28 04:35:15,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:15,389 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:35:15,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:15,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1369335084, now seen corresponding path program 1 times [2024-11-28 04:35:15,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:15,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673067202] [2024-11-28 04:35:15,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:15,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:35:15,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [348522244] [2024-11-28 04:35:15,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:15,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:15,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:15,410 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:15,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2024-11-28 04:35:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:15,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 04:35:15,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:17,478 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:35:17,478 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:18,738 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:35:18,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:18,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673067202] [2024-11-28 04:35:18,738 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:18,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348522244] [2024-11-28 04:35:18,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348522244] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:35:18,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:35:18,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 21 [2024-11-28 04:35:18,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622765997] [2024-11-28 04:35:18,738 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:18,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:35:18,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:18,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:35:18,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:35:18,740 INFO L87 Difference]: Start difference. First operand 4474 states and 6036 transitions. Second operand has 22 states, 21 states have (on average 9.952380952380953) internal successors, (209), 22 states have internal predecessors, (209), 11 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (30), 10 states have call predecessors, (30), 11 states have call successors, (30) [2024-11-28 04:35:26,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:26,356 INFO L93 Difference]: Finished difference Result 4651 states and 6247 transitions. [2024-11-28 04:35:26,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-28 04:35:26,356 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.952380952380953) internal successors, (209), 22 states have internal predecessors, (209), 11 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (30), 10 states have call predecessors, (30), 11 states have call successors, (30) Word has length 175 [2024-11-28 04:35:26,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:26,361 INFO L225 Difference]: With dead ends: 4651 [2024-11-28 04:35:26,361 INFO L226 Difference]: Without dead ends: 4650 [2024-11-28 04:35:26,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=466, Invalid=1426, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 04:35:26,363 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 644 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 2375 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 2482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 2375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:26,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 647 Invalid, 2482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 2375 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-28 04:35:26,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2024-11-28 04:35:27,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 4545. [2024-11-28 04:35:27,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4545 states, 4077 states have (on average 1.2830512631837134) internal successors, (5231), 4096 states have internal predecessors, (5231), 446 states have call successors, (446), 2 states have call predecessors, (446), 2 states have return successors, (446), 446 states have call predecessors, (446), 446 states have call successors, (446) [2024-11-28 04:35:27,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4545 states to 4545 states and 6123 transitions. [2024-11-28 04:35:27,063 INFO L78 Accepts]: Start accepts. Automaton has 4545 states and 6123 transitions. Word has length 175 [2024-11-28 04:35:27,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:27,063 INFO L471 AbstractCegarLoop]: Abstraction has 4545 states and 6123 transitions. [2024-11-28 04:35:27,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.952380952380953) internal successors, (209), 22 states have internal predecessors, (209), 11 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (30), 10 states have call predecessors, (30), 11 states have call successors, (30) [2024-11-28 04:35:27,063 INFO L276 IsEmpty]: Start isEmpty. Operand 4545 states and 6123 transitions. [2024-11-28 04:35:27,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-28 04:35:27,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:27,064 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:27,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2024-11-28 04:35:27,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:27,265 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:35:27,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:27,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1535454880, now seen corresponding path program 1 times [2024-11-28 04:35:27,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:27,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498363972] [2024-11-28 04:35:27,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:27,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:35:27,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:27,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498363972] [2024-11-28 04:35:27,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498363972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:27,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939888411] [2024-11-28 04:35:27,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:27,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:27,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:27,428 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:27,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2024-11-28 04:35:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:27,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:35:27,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:27,755 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 25 proven. 121 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:35:27,755 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:28,221 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:35:28,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939888411] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:35:28,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:35:28,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 18 [2024-11-28 04:35:28,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847228665] [2024-11-28 04:35:28,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:28,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:35:28,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:28,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:35:28,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:35:28,223 INFO L87 Difference]: Start difference. First operand 4545 states and 6123 transitions. Second operand has 19 states, 18 states have (on average 14.88888888888889) internal successors, (268), 19 states have internal predecessors, (268), 12 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 12 states have call predecessors, (38), 12 states have call successors, (38) [2024-11-28 04:35:30,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:30,782 INFO L93 Difference]: Finished difference Result 6988 states and 9379 transitions. [2024-11-28 04:35:30,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-28 04:35:30,783 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 14.88888888888889) internal successors, (268), 19 states have internal predecessors, (268), 12 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 12 states have call predecessors, (38), 12 states have call successors, (38) Word has length 184 [2024-11-28 04:35:30,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:30,792 INFO L225 Difference]: With dead ends: 6988 [2024-11-28 04:35:30,792 INFO L226 Difference]: Without dead ends: 6987 [2024-11-28 04:35:30,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 795 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=956, Invalid=2124, Unknown=0, NotChecked=0, Total=3080 [2024-11-28 04:35:30,793 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 1242 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:30,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1242 Valid, 1509 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:35:30,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6987 states. [2024-11-28 04:35:31,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6987 to 6220. [2024-11-28 04:35:31,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6220 states, 5581 states have (on average 1.295825120946067) internal successors, (7232), 5600 states have internal predecessors, (7232), 617 states have call successors, (617), 2 states have call predecessors, (617), 2 states have return successors, (617), 617 states have call predecessors, (617), 617 states have call successors, (617) [2024-11-28 04:35:31,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6220 states to 6220 states and 8466 transitions. [2024-11-28 04:35:31,599 INFO L78 Accepts]: Start accepts. Automaton has 6220 states and 8466 transitions. Word has length 184 [2024-11-28 04:35:31,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:31,599 INFO L471 AbstractCegarLoop]: Abstraction has 6220 states and 8466 transitions. [2024-11-28 04:35:31,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 14.88888888888889) internal successors, (268), 19 states have internal predecessors, (268), 12 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 12 states have call predecessors, (38), 12 states have call successors, (38) [2024-11-28 04:35:31,599 INFO L276 IsEmpty]: Start isEmpty. Operand 6220 states and 8466 transitions. [2024-11-28 04:35:31,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-28 04:35:31,600 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:31,600 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:31,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:31,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:31,801 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:35:31,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:31,801 INFO L85 PathProgramCache]: Analyzing trace with hash -671620448, now seen corresponding path program 1 times [2024-11-28 04:35:31,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:31,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630135838] [2024-11-28 04:35:31,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:31,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:31,955 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:35:31,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:31,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630135838] [2024-11-28 04:35:31,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630135838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:31,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934195715] [2024-11-28 04:35:31,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:31,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:31,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:31,959 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:31,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2024-11-28 04:35:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:32,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:35:32,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:32,358 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 48 proven. 98 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:35:32,358 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:32,732 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:35:32,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934195715] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:35:32,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:35:32,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2024-11-28 04:35:32,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780453163] [2024-11-28 04:35:32,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:32,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:35:32,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:32,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:35:32,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:35:32,734 INFO L87 Difference]: Start difference. First operand 6220 states and 8466 transitions. Second operand has 20 states, 19 states have (on average 16.63157894736842) internal successors, (316), 20 states have internal predecessors, (316), 16 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 16 states have call predecessors, (48), 16 states have call successors, (48) [2024-11-28 04:35:35,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:35,956 INFO L93 Difference]: Finished difference Result 9612 states and 13031 transitions. [2024-11-28 04:35:35,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-28 04:35:35,956 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 16.63157894736842) internal successors, (316), 20 states have internal predecessors, (316), 16 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 16 states have call predecessors, (48), 16 states have call successors, (48) Word has length 184 [2024-11-28 04:35:35,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:35,965 INFO L225 Difference]: With dead ends: 9612 [2024-11-28 04:35:35,965 INFO L226 Difference]: Without dead ends: 9611 [2024-11-28 04:35:35,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1623 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1332, Invalid=4070, Unknown=0, NotChecked=0, Total=5402 [2024-11-28 04:35:35,967 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 2277 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2277 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:35,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2277 Valid, 785 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:35:35,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9611 states. [2024-11-28 04:35:37,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9611 to 6593. [2024-11-28 04:35:37,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6593 states, 5915 states have (on average 1.295519864750634) internal successors, (7663), 5934 states have internal predecessors, (7663), 656 states have call successors, (656), 2 states have call predecessors, (656), 2 states have return successors, (656), 656 states have call predecessors, (656), 656 states have call successors, (656) [2024-11-28 04:35:37,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6593 states to 6593 states and 8975 transitions. [2024-11-28 04:35:37,029 INFO L78 Accepts]: Start accepts. Automaton has 6593 states and 8975 transitions. Word has length 184 [2024-11-28 04:35:37,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:37,029 INFO L471 AbstractCegarLoop]: Abstraction has 6593 states and 8975 transitions. [2024-11-28 04:35:37,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 16.63157894736842) internal successors, (316), 20 states have internal predecessors, (316), 16 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 16 states have call predecessors, (48), 16 states have call successors, (48) [2024-11-28 04:35:37,029 INFO L276 IsEmpty]: Start isEmpty. Operand 6593 states and 8975 transitions. [2024-11-28 04:35:37,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-28 04:35:37,030 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:37,030 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:37,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:37,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:37,231 INFO L396 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:35:37,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:37,231 INFO L85 PathProgramCache]: Analyzing trace with hash 2100742737, now seen corresponding path program 1 times [2024-11-28 04:35:37,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:37,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900408517] [2024-11-28 04:35:37,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:37,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:37,371 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:35:37,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:37,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900408517] [2024-11-28 04:35:37,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900408517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:37,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49932351] [2024-11-28 04:35:37,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:37,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:37,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:37,373 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:37,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2024-11-28 04:35:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:37,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:35:37,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:37,817 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:35:37,817 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:38,056 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:35:38,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49932351] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:35:38,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:35:38,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-28 04:35:38,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028439582] [2024-11-28 04:35:38,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:38,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:35:38,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:38,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:35:38,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:35:38,058 INFO L87 Difference]: Start difference. First operand 6593 states and 8975 transitions. Second operand has 14 states, 13 states have (on average 24.23076923076923) internal successors, (315), 14 states have internal predecessors, (315), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2024-11-28 04:35:40,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:40,161 INFO L93 Difference]: Finished difference Result 8225 states and 11106 transitions. [2024-11-28 04:35:40,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:35:40,162 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 24.23076923076923) internal successors, (315), 14 states have internal predecessors, (315), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) Word has length 185 [2024-11-28 04:35:40,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:40,169 INFO L225 Difference]: With dead ends: 8225 [2024-11-28 04:35:40,170 INFO L226 Difference]: Without dead ends: 8223 [2024-11-28 04:35:40,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=227, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:35:40,171 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 574 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:40,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 623 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:35:40,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8223 states. [2024-11-28 04:35:41,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8223 to 7680. [2024-11-28 04:35:41,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7680 states, 6890 states have (on average 1.2965166908563135) internal successors, (8933), 6909 states have internal predecessors, (8933), 768 states have call successors, (768), 2 states have call predecessors, (768), 2 states have return successors, (768), 768 states have call predecessors, (768), 768 states have call successors, (768) [2024-11-28 04:35:41,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7680 states to 7680 states and 10469 transitions. [2024-11-28 04:35:41,249 INFO L78 Accepts]: Start accepts. Automaton has 7680 states and 10469 transitions. Word has length 185 [2024-11-28 04:35:41,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:41,250 INFO L471 AbstractCegarLoop]: Abstraction has 7680 states and 10469 transitions. [2024-11-28 04:35:41,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 24.23076923076923) internal successors, (315), 14 states have internal predecessors, (315), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2024-11-28 04:35:41,250 INFO L276 IsEmpty]: Start isEmpty. Operand 7680 states and 10469 transitions. [2024-11-28 04:35:41,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:35:41,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:41,251 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:41,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2024-11-28 04:35:41,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:41,451 INFO L396 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:35:41,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:41,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1256676878, now seen corresponding path program 1 times [2024-11-28 04:35:41,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:41,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876872006] [2024-11-28 04:35:41,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:41,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:41,641 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:35:41,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:41,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876872006] [2024-11-28 04:35:41,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876872006] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:41,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522930849] [2024-11-28 04:35:41,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:41,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:41,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:41,643 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:41,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2024-11-28 04:35:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:41,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:35:41,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:42,084 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:35:42,084 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:42,338 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:35:42,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522930849] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:35:42,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:35:42,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-28 04:35:42,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560819149] [2024-11-28 04:35:42,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:42,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:35:42,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:42,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:35:42,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:35:42,340 INFO L87 Difference]: Start difference. First operand 7680 states and 10469 transitions. Second operand has 14 states, 13 states have (on average 24.923076923076923) internal successors, (324), 14 states have internal predecessors, (324), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2024-11-28 04:35:44,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:44,571 INFO L93 Difference]: Finished difference Result 9109 states and 12302 transitions. [2024-11-28 04:35:44,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:35:44,571 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 24.923076923076923) internal successors, (324), 14 states have internal predecessors, (324), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) Word has length 188 [2024-11-28 04:35:44,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:44,580 INFO L225 Difference]: With dead ends: 9109 [2024-11-28 04:35:44,580 INFO L226 Difference]: Without dead ends: 9107 [2024-11-28 04:35:44,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=157, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:35:44,583 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 492 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:44,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 648 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:35:44,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9107 states. [2024-11-28 04:35:45,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9107 to 8643. [2024-11-28 04:35:45,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8643 states, 7763 states have (on average 1.2906093005281463) internal successors, (10019), 7782 states have internal predecessors, (10019), 858 states have call successors, (858), 2 states have call predecessors, (858), 2 states have return successors, (858), 858 states have call predecessors, (858), 858 states have call successors, (858) [2024-11-28 04:35:45,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8643 states to 8643 states and 11735 transitions. [2024-11-28 04:35:45,832 INFO L78 Accepts]: Start accepts. Automaton has 8643 states and 11735 transitions. Word has length 188 [2024-11-28 04:35:45,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:45,832 INFO L471 AbstractCegarLoop]: Abstraction has 8643 states and 11735 transitions. [2024-11-28 04:35:45,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 24.923076923076923) internal successors, (324), 14 states have internal predecessors, (324), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2024-11-28 04:35:45,832 INFO L276 IsEmpty]: Start isEmpty. Operand 8643 states and 11735 transitions. [2024-11-28 04:35:45,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:35:45,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:45,833 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:45,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2024-11-28 04:35:46,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:46,033 INFO L396 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:35:46,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:46,034 INFO L85 PathProgramCache]: Analyzing trace with hash -943541160, now seen corresponding path program 9 times [2024-11-28 04:35:46,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:46,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692016083] [2024-11-28 04:35:46,034 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:35:46,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:46,055 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:35:46,056 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:35:46,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1846776222] [2024-11-28 04:35:46,057 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:35:46,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:46,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:46,060 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:46,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2024-11-28 04:35:46,280 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:35:46,280 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:35:46,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 04:35:46,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:48,228 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 92 proven. 71 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-11-28 04:35:48,229 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:48,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:48,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692016083] [2024-11-28 04:35:48,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:48,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846776222] [2024-11-28 04:35:48,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846776222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:48,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:48,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 04:35:48,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229490027] [2024-11-28 04:35:48,570 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:48,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:35:48,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:48,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:35:48,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:35:48,571 INFO L87 Difference]: Start difference. First operand 8643 states and 11735 transitions. Second operand has 16 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-28 04:35:50,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:35:52,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:52,803 INFO L93 Difference]: Finished difference Result 8668 states and 11757 transitions. [2024-11-28 04:35:52,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:35:52,804 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) Word has length 190 [2024-11-28 04:35:52,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:52,813 INFO L225 Difference]: With dead ends: 8668 [2024-11-28 04:35:52,813 INFO L226 Difference]: Without dead ends: 8656 [2024-11-28 04:35:52,815 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=275, Invalid=847, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:35:52,815 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 347 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:52,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 298 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1247 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 04:35:52,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8656 states. [2024-11-28 04:35:54,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8656 to 8648. [2024-11-28 04:35:54,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8648 states, 7767 states have (on average 1.2898158877301404) internal successors, (10018), 7786 states have internal predecessors, (10018), 859 states have call successors, (859), 2 states have call predecessors, (859), 2 states have return successors, (859), 859 states have call predecessors, (859), 859 states have call successors, (859) [2024-11-28 04:35:54,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8648 states to 8648 states and 11736 transitions. [2024-11-28 04:35:54,021 INFO L78 Accepts]: Start accepts. Automaton has 8648 states and 11736 transitions. Word has length 190 [2024-11-28 04:35:54,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:54,021 INFO L471 AbstractCegarLoop]: Abstraction has 8648 states and 11736 transitions. [2024-11-28 04:35:54,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-28 04:35:54,021 INFO L276 IsEmpty]: Start isEmpty. Operand 8648 states and 11736 transitions. [2024-11-28 04:35:54,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:35:54,022 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:54,022 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:54,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:54,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2024-11-28 04:35:54,222 INFO L396 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:35:54,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:54,223 INFO L85 PathProgramCache]: Analyzing trace with hash -2042260684, now seen corresponding path program 10 times [2024-11-28 04:35:54,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:54,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577635357] [2024-11-28 04:35:54,223 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:35:54,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:54,238 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:35:54,238 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:35:54,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [981056414] [2024-11-28 04:35:54,239 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:35:54,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:54,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:54,241 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:54,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2024-11-28 04:35:54,335 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:35:54,335 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:35:54,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:35:54,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:55,164 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:35:55,164 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:55,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:55,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577635357] [2024-11-28 04:35:55,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:35:55,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981056414] [2024-11-28 04:35:55,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981056414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:55,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:55,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:35:55,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498296666] [2024-11-28 04:35:55,315 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:55,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:35:55,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:55,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:35:55,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:35:55,316 INFO L87 Difference]: Start difference. First operand 8648 states and 11736 transitions. Second operand has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 10 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:35:57,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:57,403 INFO L93 Difference]: Finished difference Result 8677 states and 11766 transitions. [2024-11-28 04:35:57,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:35:57,404 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 10 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 190 [2024-11-28 04:35:57,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:57,413 INFO L225 Difference]: With dead ends: 8677 [2024-11-28 04:35:57,413 INFO L226 Difference]: Without dead ends: 8675 [2024-11-28 04:35:57,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:35:57,415 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 77 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:57,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 560 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:35:57,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8675 states. [2024-11-28 04:35:58,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8675 to 8664. [2024-11-28 04:35:58,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8664 states, 7781 states have (on average 1.2891659169772522) internal successors, (10031), 7800 states have internal predecessors, (10031), 861 states have call successors, (861), 2 states have call predecessors, (861), 2 states have return successors, (861), 861 states have call predecessors, (861), 861 states have call successors, (861) [2024-11-28 04:35:58,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8664 states to 8664 states and 11753 transitions. [2024-11-28 04:35:58,626 INFO L78 Accepts]: Start accepts. Automaton has 8664 states and 11753 transitions. Word has length 190 [2024-11-28 04:35:58,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:58,627 INFO L471 AbstractCegarLoop]: Abstraction has 8664 states and 11753 transitions. [2024-11-28 04:35:58,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 10 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:35:58,627 INFO L276 IsEmpty]: Start isEmpty. Operand 8664 states and 11753 transitions. [2024-11-28 04:35:58,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:35:58,628 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:58,628 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:58,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2024-11-28 04:35:58,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable95 [2024-11-28 04:35:58,828 INFO L396 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:35:58,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:58,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1091560474, now seen corresponding path program 11 times [2024-11-28 04:35:58,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:58,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810318584] [2024-11-28 04:35:58,829 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:35:58,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:58,846 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-28 04:35:58,846 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:35:58,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [761140931] [2024-11-28 04:35:58,847 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:35:58,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:58,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:58,850 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:58,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2024-11-28 04:36:00,105 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-28 04:36:00,106 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:36:00,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 04:36:00,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:11,337 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 30 proven. 161 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-11-28 04:36:11,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:11,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:11,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810318584] [2024-11-28 04:36:11,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:36:11,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761140931] [2024-11-28 04:36:11,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761140931] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:11,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:11,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-28 04:36:11,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670237034] [2024-11-28 04:36:11,695 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:11,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:36:11,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:11,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:36:11,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=310, Unknown=1, NotChecked=0, Total=380 [2024-11-28 04:36:11,696 INFO L87 Difference]: Start difference. First operand 8664 states and 11753 transitions. Second operand has 17 states, 16 states have (on average 7.4375) internal successors, (119), 17 states have internal predecessors, (119), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:36:13,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:36:16,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:36:21,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:36:22,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:36:26,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:36:31,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:36:35,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:36:37,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:36:47,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:37:07,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:37:10,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:10,286 INFO L93 Difference]: Finished difference Result 8686 states and 11773 transitions. [2024-11-28 04:37:10,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:37:10,287 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 7.4375) internal successors, (119), 17 states have internal predecessors, (119), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 190 [2024-11-28 04:37:10,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:10,295 INFO L225 Difference]: With dead ends: 8686 [2024-11-28 04:37:10,295 INFO L226 Difference]: Without dead ends: 8668 [2024-11-28 04:37:10,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 28.0s TimeCoverageRelationStatistics Valid=95, Invalid=451, Unknown=6, NotChecked=0, Total=552 [2024-11-28 04:37:10,297 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 76 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 6 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:10,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 382 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1899 Invalid, 6 Unknown, 0 Unchecked, 36.1s Time] [2024-11-28 04:37:10,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8668 states. [2024-11-28 04:37:11,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8668 to 8664. [2024-11-28 04:37:11,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8664 states, 7781 states have (on average 1.2889088806066058) internal successors, (10029), 7800 states have internal predecessors, (10029), 861 states have call successors, (861), 2 states have call predecessors, (861), 2 states have return successors, (861), 861 states have call predecessors, (861), 861 states have call successors, (861) [2024-11-28 04:37:11,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8664 states to 8664 states and 11751 transitions. [2024-11-28 04:37:11,631 INFO L78 Accepts]: Start accepts. Automaton has 8664 states and 11751 transitions. Word has length 190 [2024-11-28 04:37:11,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:11,631 INFO L471 AbstractCegarLoop]: Abstraction has 8664 states and 11751 transitions. [2024-11-28 04:37:11,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 7.4375) internal successors, (119), 17 states have internal predecessors, (119), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:37:11,631 INFO L276 IsEmpty]: Start isEmpty. Operand 8664 states and 11751 transitions. [2024-11-28 04:37:11,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:37:11,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:11,633 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:11,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2024-11-28 04:37:11,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2024-11-28 04:37:11,833 INFO L396 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:37:11,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:11,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1592910888, now seen corresponding path program 12 times [2024-11-28 04:37:11,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:11,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887540825] [2024-11-28 04:37:11,834 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:37:11,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:11,856 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 04:37:11,856 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:37:11,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1412382132] [2024-11-28 04:37:11,857 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:37:11,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:11,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:11,862 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:11,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2024-11-28 04:37:12,055 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 04:37:12,055 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:37:12,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:37:12,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:14,456 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:37:14,456 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:37:14,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:14,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887540825] [2024-11-28 04:37:14,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:37:14,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412382132] [2024-11-28 04:37:14,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412382132] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:37:14,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:37:14,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 04:37:14,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299135326] [2024-11-28 04:37:14,718 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:37:14,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:37:14,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:14,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:37:14,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:37:14,719 INFO L87 Difference]: Start difference. First operand 8664 states and 11751 transitions. Second operand has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 15 states have internal predecessors, (116), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:37:18,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:18,471 INFO L93 Difference]: Finished difference Result 8699 states and 11787 transitions. [2024-11-28 04:37:18,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:37:18,471 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 15 states have internal predecessors, (116), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 190 [2024-11-28 04:37:18,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:18,481 INFO L225 Difference]: With dead ends: 8699 [2024-11-28 04:37:18,481 INFO L226 Difference]: Without dead ends: 8697 [2024-11-28 04:37:18,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:37:18,483 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 92 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 2083 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:18,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 554 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2083 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 04:37:18,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2024-11-28 04:37:19,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 8664. [2024-11-28 04:37:19,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8664 states, 7781 states have (on average 1.2887803624212826) internal successors, (10028), 7800 states have internal predecessors, (10028), 861 states have call successors, (861), 2 states have call predecessors, (861), 2 states have return successors, (861), 861 states have call predecessors, (861), 861 states have call successors, (861) [2024-11-28 04:37:19,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8664 states to 8664 states and 11750 transitions. [2024-11-28 04:37:19,682 INFO L78 Accepts]: Start accepts. Automaton has 8664 states and 11750 transitions. Word has length 190 [2024-11-28 04:37:19,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:19,682 INFO L471 AbstractCegarLoop]: Abstraction has 8664 states and 11750 transitions. [2024-11-28 04:37:19,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 15 states have internal predecessors, (116), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:37:19,682 INFO L276 IsEmpty]: Start isEmpty. Operand 8664 states and 11750 transitions. [2024-11-28 04:37:19,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:37:19,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:19,683 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:19,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Forceful destruction successful, exit code 0 [2024-11-28 04:37:19,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:19,883 INFO L396 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:37:19,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:19,884 INFO L85 PathProgramCache]: Analyzing trace with hash -642210678, now seen corresponding path program 13 times [2024-11-28 04:37:19,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:19,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574865247] [2024-11-28 04:37:19,884 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:37:19,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:37:19,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079784914] [2024-11-28 04:37:19,900 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:37:19,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:19,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:19,907 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:19,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2024-11-28 04:37:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:19,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:37:19,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:21,150 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 158 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:37:21,150 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:37:21,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:21,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574865247] [2024-11-28 04:37:21,351 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:37:21,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079784914] [2024-11-28 04:37:21,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079784914] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:37:21,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:37:21,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:37:21,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865525536] [2024-11-28 04:37:21,352 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:37:21,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:37:21,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:21,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:37:21,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:37:21,353 INFO L87 Difference]: Start difference. First operand 8664 states and 11750 transitions. Second operand has 9 states, 8 states have (on average 14.5) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:37:23,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:23,591 INFO L93 Difference]: Finished difference Result 8684 states and 11768 transitions. [2024-11-28 04:37:23,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:37:23,592 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 190 [2024-11-28 04:37:23,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:23,599 INFO L225 Difference]: With dead ends: 8684 [2024-11-28 04:37:23,599 INFO L226 Difference]: Without dead ends: 8666 [2024-11-28 04:37:23,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:37:23,601 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 66 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:23,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 549 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:37:23,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8666 states. [2024-11-28 04:37:24,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8666 to 8664. [2024-11-28 04:37:24,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8664 states, 7781 states have (on average 1.2885233260506361) internal successors, (10026), 7800 states have internal predecessors, (10026), 861 states have call successors, (861), 2 states have call predecessors, (861), 2 states have return successors, (861), 861 states have call predecessors, (861), 861 states have call successors, (861) [2024-11-28 04:37:24,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8664 states to 8664 states and 11748 transitions. [2024-11-28 04:37:24,796 INFO L78 Accepts]: Start accepts. Automaton has 8664 states and 11748 transitions. Word has length 190 [2024-11-28 04:37:24,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:24,796 INFO L471 AbstractCegarLoop]: Abstraction has 8664 states and 11748 transitions. [2024-11-28 04:37:24,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:37:24,796 INFO L276 IsEmpty]: Start isEmpty. Operand 8664 states and 11748 transitions. [2024-11-28 04:37:24,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:37:24,797 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:24,797 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:24,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Forceful destruction successful, exit code 0 [2024-11-28 04:37:24,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:24,998 INFO L396 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:37:24,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:24,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1740930202, now seen corresponding path program 14 times [2024-11-28 04:37:24,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:24,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267624947] [2024-11-28 04:37:24,998 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:37:24,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:25,009 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:37:25,009 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:37:25,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1360793076] [2024-11-28 04:37:25,010 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:37:25,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:25,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:25,013 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:25,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2024-11-28 04:37:25,086 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:37:25,086 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:37:25,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:37:25,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:26,172 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 158 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:37:26,173 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:37:26,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:26,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267624947] [2024-11-28 04:37:26,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:37:26,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360793076] [2024-11-28 04:37:26,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360793076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:37:26,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:37:26,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:37:26,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012809188] [2024-11-28 04:37:26,313 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:37:26,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:37:26,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:26,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:37:26,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:37:26,314 INFO L87 Difference]: Start difference. First operand 8664 states and 11748 transitions. Second operand has 9 states, 8 states have (on average 14.5) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:37:28,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:28,626 INFO L93 Difference]: Finished difference Result 8693 states and 11778 transitions. [2024-11-28 04:37:28,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:37:28,626 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 190 [2024-11-28 04:37:28,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:28,636 INFO L225 Difference]: With dead ends: 8693 [2024-11-28 04:37:28,636 INFO L226 Difference]: Without dead ends: 8691 [2024-11-28 04:37:28,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:37:28,637 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 73 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:28,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 493 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:37:28,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8691 states. [2024-11-28 04:37:29,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8691 to 8664. [2024-11-28 04:37:29,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8664 states, 7781 states have (on average 1.288394807865313) internal successors, (10025), 7800 states have internal predecessors, (10025), 861 states have call successors, (861), 2 states have call predecessors, (861), 2 states have return successors, (861), 861 states have call predecessors, (861), 861 states have call successors, (861) [2024-11-28 04:37:29,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8664 states to 8664 states and 11747 transitions. [2024-11-28 04:37:29,836 INFO L78 Accepts]: Start accepts. Automaton has 8664 states and 11747 transitions. Word has length 190 [2024-11-28 04:37:29,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:29,836 INFO L471 AbstractCegarLoop]: Abstraction has 8664 states and 11747 transitions. [2024-11-28 04:37:29,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:37:29,836 INFO L276 IsEmpty]: Start isEmpty. Operand 8664 states and 11747 transitions. [2024-11-28 04:37:29,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:37:29,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:29,838 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:29,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2024-11-28 04:37:30,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2024-11-28 04:37:30,038 INFO L396 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:37:30,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:30,038 INFO L85 PathProgramCache]: Analyzing trace with hash -790229992, now seen corresponding path program 15 times [2024-11-28 04:37:30,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:30,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032920296] [2024-11-28 04:37:30,039 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:37:30,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:30,062 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:37:30,062 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:37:30,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1278587048] [2024-11-28 04:37:30,063 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:37:30,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:30,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:30,065 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:30,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2024-11-28 04:37:30,169 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:37:30,169 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:37:30,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:37:30,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:31,093 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 27 proven. 147 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2024-11-28 04:37:31,094 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:37:54,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:54,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032920296] [2024-11-28 04:37:54,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:37:54,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278587048] [2024-11-28 04:37:54,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278587048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:37:54,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:37:54,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:37:54,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154981773] [2024-11-28 04:37:54,622 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:37:54,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:37:54,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:54,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:37:54,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=335, Unknown=1, NotChecked=0, Total=420 [2024-11-28 04:37:54,622 INFO L87 Difference]: Start difference. First operand 8664 states and 11747 transitions. Second operand has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:37:58,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:58,470 INFO L93 Difference]: Finished difference Result 8704 states and 11785 transitions. [2024-11-28 04:37:58,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:37:58,471 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 190 [2024-11-28 04:37:58,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:58,480 INFO L225 Difference]: With dead ends: 8704 [2024-11-28 04:37:58,480 INFO L226 Difference]: Without dead ends: 8686 [2024-11-28 04:37:58,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=153, Invalid=548, Unknown=1, NotChecked=0, Total=702 [2024-11-28 04:37:58,482 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 363 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:58,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 690 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 04:37:58,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8686 states. [2024-11-28 04:37:59,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8686 to 8664. [2024-11-28 04:37:59,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8664 states, 7781 states have (on average 1.2876236987533736) internal successors, (10019), 7800 states have internal predecessors, (10019), 861 states have call successors, (861), 2 states have call predecessors, (861), 2 states have return successors, (861), 861 states have call predecessors, (861), 861 states have call successors, (861) [2024-11-28 04:37:59,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8664 states to 8664 states and 11741 transitions. [2024-11-28 04:37:59,702 INFO L78 Accepts]: Start accepts. Automaton has 8664 states and 11741 transitions. Word has length 190 [2024-11-28 04:37:59,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:59,702 INFO L471 AbstractCegarLoop]: Abstraction has 8664 states and 11741 transitions. [2024-11-28 04:37:59,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:37:59,702 INFO L276 IsEmpty]: Start isEmpty. Operand 8664 states and 11741 transitions. [2024-11-28 04:37:59,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:37:59,703 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:59,703 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:59,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2024-11-28 04:37:59,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2024-11-28 04:37:59,903 INFO L396 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:37:59,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:59,904 INFO L85 PathProgramCache]: Analyzing trace with hash -933979212, now seen corresponding path program 16 times [2024-11-28 04:37:59,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:59,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781703059] [2024-11-28 04:37:59,904 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:37:59,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:59,917 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:37:59,917 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:37:59,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1986283919] [2024-11-28 04:37:59,918 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:37:59,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:59,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:59,921 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:59,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2024-11-28 04:38:00,006 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:38:00,006 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:38:00,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:38:00,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:38:01,062 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:38:01,063 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:38:02,054 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:38:02,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:02,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781703059] [2024-11-28 04:38:02,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:38:02,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986283919] [2024-11-28 04:38:02,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986283919] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:38:02,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:38:02,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-28 04:38:02,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825815794] [2024-11-28 04:38:02,055 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:38:02,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:38:02,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:02,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:38:02,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:38:02,056 INFO L87 Difference]: Start difference. First operand 8664 states and 11741 transitions. Second operand has 14 states, 13 states have (on average 17.153846153846153) internal successors, (223), 14 states have internal predecessors, (223), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-28 04:38:07,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:07,535 INFO L93 Difference]: Finished difference Result 8786 states and 11874 transitions. [2024-11-28 04:38:07,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:38:07,535 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 17.153846153846153) internal successors, (223), 14 states have internal predecessors, (223), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) Word has length 190 [2024-11-28 04:38:07,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:07,544 INFO L225 Difference]: With dead ends: 8786 [2024-11-28 04:38:07,544 INFO L226 Difference]: Without dead ends: 8720 [2024-11-28 04:38:07,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:38:07,547 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 528 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 1618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:07,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 746 Invalid, 1618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 04:38:07,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8720 states. [2024-11-28 04:38:08,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8720 to 8640. [2024-11-28 04:38:08,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8640 states, 7762 states have (on average 1.275186807523834) internal successors, (9898), 7780 states have internal predecessors, (9898), 857 states have call successors, (857), 2 states have call predecessors, (857), 2 states have return successors, (857), 857 states have call predecessors, (857), 857 states have call successors, (857) [2024-11-28 04:38:08,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8640 states to 8640 states and 11612 transitions. [2024-11-28 04:38:08,772 INFO L78 Accepts]: Start accepts. Automaton has 8640 states and 11612 transitions. Word has length 190 [2024-11-28 04:38:08,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:08,772 INFO L471 AbstractCegarLoop]: Abstraction has 8640 states and 11612 transitions. [2024-11-28 04:38:08,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 17.153846153846153) internal successors, (223), 14 states have internal predecessors, (223), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-28 04:38:08,772 INFO L276 IsEmpty]: Start isEmpty. Operand 8640 states and 11612 transitions. [2024-11-28 04:38:08,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:38:08,773 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:08,773 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:08,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2024-11-28 04:38:08,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2024-11-28 04:38:08,973 INFO L396 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:38:08,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:08,974 INFO L85 PathProgramCache]: Analyzing trace with hash 16720998, now seen corresponding path program 17 times [2024-11-28 04:38:08,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:08,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897411766] [2024-11-28 04:38:08,974 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:38:08,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:08,988 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-28 04:38:08,988 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:38:08,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1735836994] [2024-11-28 04:38:08,988 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:38:08,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:08,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:38:08,990 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:38:08,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2024-11-28 04:38:09,332 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-28 04:38:09,332 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:38:09,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:38:09,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:38:10,529 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 158 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:38:10,529 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:38:10,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:10,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897411766] [2024-11-28 04:38:10,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:38:10,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735836994] [2024-11-28 04:38:10,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735836994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:38:10,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:38:10,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:38:10,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113347521] [2024-11-28 04:38:10,745 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:38:10,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:38:10,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:10,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:38:10,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:38:10,746 INFO L87 Difference]: Start difference. First operand 8640 states and 11612 transitions. Second operand has 9 states, 8 states have (on average 14.5) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:38:12,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:12,855 INFO L93 Difference]: Finished difference Result 8643 states and 11612 transitions. [2024-11-28 04:38:12,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:38:12,856 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 190 [2024-11-28 04:38:12,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:12,869 INFO L225 Difference]: With dead ends: 8643 [2024-11-28 04:38:12,869 INFO L226 Difference]: Without dead ends: 8642 [2024-11-28 04:38:12,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:38:12,871 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 52 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:12,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 516 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:38:12,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8642 states. [2024-11-28 04:38:14,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8642 to 8640. [2024-11-28 04:38:14,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8640 states, 7762 states have (on average 1.275057974748776) internal successors, (9897), 7780 states have internal predecessors, (9897), 857 states have call successors, (857), 2 states have call predecessors, (857), 2 states have return successors, (857), 857 states have call predecessors, (857), 857 states have call successors, (857) [2024-11-28 04:38:14,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8640 states to 8640 states and 11611 transitions. [2024-11-28 04:38:14,147 INFO L78 Accepts]: Start accepts. Automaton has 8640 states and 11611 transitions. Word has length 190 [2024-11-28 04:38:14,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:14,147 INFO L471 AbstractCegarLoop]: Abstraction has 8640 states and 11611 transitions. [2024-11-28 04:38:14,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:38:14,147 INFO L276 IsEmpty]: Start isEmpty. Operand 8640 states and 11611 transitions. [2024-11-28 04:38:14,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:38:14,148 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:14,148 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:14,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2024-11-28 04:38:14,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2024-11-28 04:38:14,349 INFO L396 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:38:14,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:14,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1081998526, now seen corresponding path program 18 times [2024-11-28 04:38:14,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:14,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607562252] [2024-11-28 04:38:14,349 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:38:14,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:14,372 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 04:38:14,374 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:38:14,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [831258249] [2024-11-28 04:38:14,375 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:38:14,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:14,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:38:14,378 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:38:14,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2024-11-28 04:38:14,973 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 04:38:14,973 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:38:14,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 04:38:14,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:38:19,009 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 33 proven. 158 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-11-28 04:38:19,009 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:38:19,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:19,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607562252] [2024-11-28 04:38:19,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:38:19,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831258249] [2024-11-28 04:38:19,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831258249] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:38:19,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:38:19,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-11-28 04:38:19,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633533808] [2024-11-28 04:38:19,601 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:38:19,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:38:19,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:19,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:38:19,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:38:19,602 INFO L87 Difference]: Start difference. First operand 8640 states and 11611 transitions. Second operand has 20 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:38:22,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:27,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:35,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:39,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:43,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:47,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:52,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:38:56,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:00,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:04,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:08,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:12,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:16,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:20,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:24,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:28,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:32,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:43,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:39:46,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:46,978 INFO L93 Difference]: Finished difference Result 8667 states and 11639 transitions. [2024-11-28 04:39:46,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:39:46,978 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 190 [2024-11-28 04:39:46,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:46,987 INFO L225 Difference]: With dead ends: 8667 [2024-11-28 04:39:46,987 INFO L226 Difference]: Without dead ends: 8666 [2024-11-28 04:39:46,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=121, Invalid=631, Unknown=4, NotChecked=0, Total=756 [2024-11-28 04:39:46,989 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 102 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 2974 mSolverCounterSat, 5 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 2997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2974 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:46,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 653 Invalid, 2997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2974 Invalid, 18 Unknown, 0 Unchecked, 75.4s Time] [2024-11-28 04:39:46,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8666 states. [2024-11-28 04:39:48,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8666 to 8640. [2024-11-28 04:39:48,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8640 states, 7762 states have (on average 1.274929141973718) internal successors, (9896), 7780 states have internal predecessors, (9896), 857 states have call successors, (857), 2 states have call predecessors, (857), 2 states have return successors, (857), 857 states have call predecessors, (857), 857 states have call successors, (857) [2024-11-28 04:39:48,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8640 states to 8640 states and 11610 transitions. [2024-11-28 04:39:48,329 INFO L78 Accepts]: Start accepts. Automaton has 8640 states and 11610 transitions. Word has length 190 [2024-11-28 04:39:48,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:48,330 INFO L471 AbstractCegarLoop]: Abstraction has 8640 states and 11610 transitions. [2024-11-28 04:39:48,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:39:48,330 INFO L276 IsEmpty]: Start isEmpty. Operand 8640 states and 11610 transitions. [2024-11-28 04:39:48,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:39:48,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:48,331 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:48,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2024-11-28 04:39:48,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2024-11-28 04:39:48,531 INFO L396 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:39:48,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:48,531 INFO L85 PathProgramCache]: Analyzing trace with hash -131298316, now seen corresponding path program 19 times [2024-11-28 04:39:48,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:48,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762968959] [2024-11-28 04:39:48,532 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:39:48,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:39:48,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637847732] [2024-11-28 04:39:48,546 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:39:48,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:48,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:39:48,547 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:39:48,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2024-11-28 04:39:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:48,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:39:48,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:39:50,005 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:39:50,006 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:39:50,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:50,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762968959] [2024-11-28 04:39:50,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:39:50,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637847732] [2024-11-28 04:39:50,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637847732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:39:50,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:39:50,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:39:50,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292989217] [2024-11-28 04:39:50,176 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:39:50,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:39:50,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:50,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:39:50,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:39:50,177 INFO L87 Difference]: Start difference. First operand 8640 states and 11610 transitions. Second operand has 9 states, 8 states have (on average 14.5) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:39:52,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:52,428 INFO L93 Difference]: Finished difference Result 8647 states and 11614 transitions. [2024-11-28 04:39:52,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:39:52,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 190 [2024-11-28 04:39:52,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:52,437 INFO L225 Difference]: With dead ends: 8647 [2024-11-28 04:39:52,437 INFO L226 Difference]: Without dead ends: 8646 [2024-11-28 04:39:52,438 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:39:52,439 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 76 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:52,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 569 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:39:52,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8646 states. [2024-11-28 04:39:53,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8646 to 8640. [2024-11-28 04:39:53,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8640 states, 7762 states have (on average 1.2748003091986602) internal successors, (9895), 7780 states have internal predecessors, (9895), 857 states have call successors, (857), 2 states have call predecessors, (857), 2 states have return successors, (857), 857 states have call predecessors, (857), 857 states have call successors, (857) [2024-11-28 04:39:53,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8640 states to 8640 states and 11609 transitions. [2024-11-28 04:39:53,866 INFO L78 Accepts]: Start accepts. Automaton has 8640 states and 11609 transitions. Word has length 190 [2024-11-28 04:39:53,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:53,866 INFO L471 AbstractCegarLoop]: Abstraction has 8640 states and 11609 transitions. [2024-11-28 04:39:53,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:39:53,866 INFO L276 IsEmpty]: Start isEmpty. Operand 8640 states and 11609 transitions. [2024-11-28 04:39:53,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:39:53,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:53,868 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:53,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Ended with exit code 0 [2024-11-28 04:39:54,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:54,069 INFO L396 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:39:54,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:54,069 INFO L85 PathProgramCache]: Analyzing trace with hash 318051480, now seen corresponding path program 20 times [2024-11-28 04:39:54,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:54,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162196450] [2024-11-28 04:39:54,069 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:39:54,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:54,087 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:39:54,087 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:39:54,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [203458032] [2024-11-28 04:39:54,088 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:39:54,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:54,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:39:54,094 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:39:54,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2024-11-28 04:39:54,184 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:39:54,185 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:39:54,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:39:54,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:39:55,414 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:39:55,414 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:39:55,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:55,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162196450] [2024-11-28 04:39:55,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:39:55,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203458032] [2024-11-28 04:39:55,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203458032] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:39:55,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:39:55,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:39:55,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077748910] [2024-11-28 04:39:55,638 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:39:55,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:39:55,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:55,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:39:55,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:39:55,639 INFO L87 Difference]: Start difference. First operand 8640 states and 11609 transitions. Second operand has 8 states, 7 states have (on average 16.571428571428573) internal successors, (116), 8 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:39:57,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:57,654 INFO L93 Difference]: Finished difference Result 8649 states and 11615 transitions. [2024-11-28 04:39:57,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:39:57,654 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.571428571428573) internal successors, (116), 8 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 190 [2024-11-28 04:39:57,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:57,662 INFO L225 Difference]: With dead ends: 8649 [2024-11-28 04:39:57,662 INFO L226 Difference]: Without dead ends: 8648 [2024-11-28 04:39:57,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:39:57,664 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 53 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:57,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 446 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:39:57,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8648 states. [2024-11-28 04:39:58,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8648 to 8640. [2024-11-28 04:39:58,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8640 states, 7762 states have (on average 1.2746714764236022) internal successors, (9894), 7780 states have internal predecessors, (9894), 857 states have call successors, (857), 2 states have call predecessors, (857), 2 states have return successors, (857), 857 states have call predecessors, (857), 857 states have call successors, (857) [2024-11-28 04:39:58,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8640 states to 8640 states and 11608 transitions. [2024-11-28 04:39:58,870 INFO L78 Accepts]: Start accepts. Automaton has 8640 states and 11608 transitions. Word has length 190 [2024-11-28 04:39:58,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:58,870 INFO L471 AbstractCegarLoop]: Abstraction has 8640 states and 11608 transitions. [2024-11-28 04:39:58,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.571428571428573) internal successors, (116), 8 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:39:58,870 INFO L276 IsEmpty]: Start isEmpty. Operand 8640 states and 11608 transitions. [2024-11-28 04:39:58,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-28 04:39:58,871 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:58,871 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:58,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2024-11-28 04:39:59,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2024-11-28 04:39:59,072 INFO L396 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:39:59,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:59,072 INFO L85 PathProgramCache]: Analyzing trace with hash -780668044, now seen corresponding path program 21 times [2024-11-28 04:39:59,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:59,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132010017] [2024-11-28 04:39:59,072 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:39:59,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:59,091 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:39:59,091 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:39:59,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [357168600] [2024-11-28 04:39:59,092 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:39:59,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:59,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:39:59,094 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:39:59,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2024-11-28 04:39:59,160 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:39:59,160 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:39:59,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:39:59,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:39:59,675 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 27 proven. 62 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-11-28 04:39:59,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:39:59,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:59,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132010017] [2024-11-28 04:39:59,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:39:59,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357168600] [2024-11-28 04:39:59,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357168600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:39:59,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:39:59,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:39:59,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852275208] [2024-11-28 04:39:59,920 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:39:59,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:39:59,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:59,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:39:59,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:39:59,921 INFO L87 Difference]: Start difference. First operand 8640 states and 11608 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:40:01,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:01,732 INFO L93 Difference]: Finished difference Result 8770 states and 11769 transitions. [2024-11-28 04:40:01,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:40:01,732 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 190 [2024-11-28 04:40:01,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:01,743 INFO L225 Difference]: With dead ends: 8770 [2024-11-28 04:40:01,743 INFO L226 Difference]: Without dead ends: 8769 [2024-11-28 04:40:01,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:40:01,744 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 72 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:01,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 369 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:40:01,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8769 states. [2024-11-28 04:40:03,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8769 to 8725. [2024-11-28 04:40:03,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8725 states, 7838 states have (on average 1.273156417453432) internal successors, (9979), 7856 states have internal predecessors, (9979), 866 states have call successors, (866), 2 states have call predecessors, (866), 2 states have return successors, (866), 866 states have call predecessors, (866), 866 states have call successors, (866) [2024-11-28 04:40:03,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8725 states to 8725 states and 11711 transitions. [2024-11-28 04:40:03,354 INFO L78 Accepts]: Start accepts. Automaton has 8725 states and 11711 transitions. Word has length 190 [2024-11-28 04:40:03,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:03,354 INFO L471 AbstractCegarLoop]: Abstraction has 8725 states and 11711 transitions. [2024-11-28 04:40:03,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:40:03,354 INFO L276 IsEmpty]: Start isEmpty. Operand 8725 states and 11711 transitions. [2024-11-28 04:40:03,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-28 04:40:03,355 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:03,355 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:03,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Ended with exit code 0 [2024-11-28 04:40:03,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2024-11-28 04:40:03,555 INFO L396 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:40:03,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:03,556 INFO L85 PathProgramCache]: Analyzing trace with hash -504953638, now seen corresponding path program 7 times [2024-11-28 04:40:03,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:03,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408454924] [2024-11-28 04:40:03,556 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:40:03,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:40:03,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440548341] [2024-11-28 04:40:03,569 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:40:03,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:03,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:40:03,570 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:40:03,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2024-11-28 04:40:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:03,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:40:03,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:40:04,710 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:40:04,711 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:40:04,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:04,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408454924] [2024-11-28 04:40:04,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:40:04,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440548341] [2024-11-28 04:40:04,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440548341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:40:04,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:40:04,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:40:04,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176699236] [2024-11-28 04:40:04,895 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:40:04,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:40:04,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:04,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:40:04,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:40:04,895 INFO L87 Difference]: Start difference. First operand 8725 states and 11711 transitions. Second operand has 7 states, 6 states have (on average 19.666666666666668) internal successors, (118), 7 states have internal predecessors, (118), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:40:06,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:06,823 INFO L93 Difference]: Finished difference Result 8736 states and 11722 transitions. [2024-11-28 04:40:06,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:40:06,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.666666666666668) internal successors, (118), 7 states have internal predecessors, (118), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 192 [2024-11-28 04:40:06,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:06,833 INFO L225 Difference]: With dead ends: 8736 [2024-11-28 04:40:06,833 INFO L226 Difference]: Without dead ends: 8735 [2024-11-28 04:40:06,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:40:06,836 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 51 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:06,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 466 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:40:06,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8735 states. [2024-11-28 04:40:08,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8735 to 8725. [2024-11-28 04:40:08,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8725 states, 7838 states have (on average 1.2730288338861955) internal successors, (9978), 7856 states have internal predecessors, (9978), 866 states have call successors, (866), 2 states have call predecessors, (866), 2 states have return successors, (866), 866 states have call predecessors, (866), 866 states have call successors, (866) [2024-11-28 04:40:08,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8725 states to 8725 states and 11710 transitions. [2024-11-28 04:40:08,365 INFO L78 Accepts]: Start accepts. Automaton has 8725 states and 11710 transitions. Word has length 192 [2024-11-28 04:40:08,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:08,365 INFO L471 AbstractCegarLoop]: Abstraction has 8725 states and 11710 transitions. [2024-11-28 04:40:08,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.666666666666668) internal successors, (118), 7 states have internal predecessors, (118), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:40:08,366 INFO L276 IsEmpty]: Start isEmpty. Operand 8725 states and 11710 transitions. [2024-11-28 04:40:08,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-28 04:40:08,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:08,366 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:08,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Forceful destruction successful, exit code 0 [2024-11-28 04:40:08,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2024-11-28 04:40:08,567 INFO L396 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:40:08,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:08,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1017593624, now seen corresponding path program 8 times [2024-11-28 04:40:08,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:08,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770086766] [2024-11-28 04:40:08,567 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:40:08,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:08,581 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:40:08,581 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:40:08,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1084989917] [2024-11-28 04:40:08,582 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:40:08,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:08,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:40:08,584 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:40:08,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2024-11-28 04:40:08,657 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:40:08,657 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:40:08,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:40:08,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:40:09,649 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 04:40:09,649 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:40:09,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:09,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770086766] [2024-11-28 04:40:09,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:40:09,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084989917] [2024-11-28 04:40:09,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084989917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:40:09,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:40:09,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:40:09,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741215247] [2024-11-28 04:40:09,881 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:40:09,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:40:09,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:09,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:40:09,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:40:09,882 INFO L87 Difference]: Start difference. First operand 8725 states and 11710 transitions. Second operand has 7 states, 6 states have (on average 19.666666666666668) internal successors, (118), 7 states have internal predecessors, (118), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:40:11,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:40:11,924 INFO L93 Difference]: Finished difference Result 8727 states and 11710 transitions. [2024-11-28 04:40:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:40:11,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.666666666666668) internal successors, (118), 7 states have internal predecessors, (118), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 192 [2024-11-28 04:40:11,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:40:11,937 INFO L225 Difference]: With dead ends: 8727 [2024-11-28 04:40:11,937 INFO L226 Difference]: Without dead ends: 8726 [2024-11-28 04:40:11,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:40:11,939 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 44 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:40:11,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 440 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:40:11,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8726 states. [2024-11-28 04:40:13,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8726 to 8725. [2024-11-28 04:40:13,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8725 states, 7838 states have (on average 1.272901250318959) internal successors, (9977), 7856 states have internal predecessors, (9977), 866 states have call successors, (866), 2 states have call predecessors, (866), 2 states have return successors, (866), 866 states have call predecessors, (866), 866 states have call successors, (866) [2024-11-28 04:40:13,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8725 states to 8725 states and 11709 transitions. [2024-11-28 04:40:13,208 INFO L78 Accepts]: Start accepts. Automaton has 8725 states and 11709 transitions. Word has length 192 [2024-11-28 04:40:13,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:40:13,209 INFO L471 AbstractCegarLoop]: Abstraction has 8725 states and 11709 transitions. [2024-11-28 04:40:13,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.666666666666668) internal successors, (118), 7 states have internal predecessors, (118), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 04:40:13,209 INFO L276 IsEmpty]: Start isEmpty. Operand 8725 states and 11709 transitions. [2024-11-28 04:40:13,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-28 04:40:13,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:40:13,211 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:13,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Forceful destruction successful, exit code 0 [2024-11-28 04:40:13,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable108 [2024-11-28 04:40:13,411 INFO L396 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 04:40:13,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:13,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1310830732, now seen corresponding path program 9 times [2024-11-28 04:40:13,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:13,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9194832] [2024-11-28 04:40:13,412 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:40:13,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:13,439 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:40:13,439 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:40:13,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945865574] [2024-11-28 04:40:13,440 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:40:13,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:40:13,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:40:13,444 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:40:13,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5549902-bb86-4fdd-bf2b-656e662bf742/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2024-11-28 04:40:13,548 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:40:13,548 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:40:13,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 04:40:13,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:40:40,889 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 63 proven. 152 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-28 04:40:40,889 INFO L312 TraceCheckSpWp]: Computing backward predicates...