./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound5.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_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/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_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/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_68fa3941-020c-40b9-bc54-a466be430119/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 befa5004268d4c15cae2c05402ac6cc0f86cef85e498084909e66f7e8cc4b8f3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:06:49,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:06:49,163 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:06:49,170 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:06:49,170 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:06:49,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:06:49,198 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:06:49,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:06:49,198 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:06:49,199 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:06:49,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:06:49,199 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:06:49,199 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:06:49,199 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:06:49,199 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:06:49,200 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:06:49,200 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:06:49,200 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:06:49,200 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:06:49,200 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:06:49,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:06:49,200 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:06:49,201 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:06:49,201 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:06:49,201 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:06:49,201 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:06:49,201 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:06:49,201 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:06:49,201 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:06:49,201 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:06:49,202 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:06:49,202 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:06:49,202 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:06:49,202 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:06:49,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:06:49,202 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:06:49,202 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:06:49,203 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:06:49,203 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:06:49,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:06:49,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:06:49,203 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:06:49,203 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:06:49,203 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:06:49,203 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:06:49,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:06:49,204 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:06:49,204 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:06:49,204 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:06:49,204 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:06:49,204 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_68fa3941-020c-40b9-bc54-a466be430119/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 -> befa5004268d4c15cae2c05402ac6cc0f86cef85e498084909e66f7e8cc4b8f3 [2024-11-28 04:06:49,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:06:49,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:06:49,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:06:49,602 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:06:49,603 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:06:49,604 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound5.c [2024-11-28 04:06:52,992 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/data/a40ad6d0a/f3fa08b4a5d7420d838482ec54c6a7eb/FLAGfada89e6d [2024-11-28 04:06:53,433 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:06:53,434 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound5.c [2024-11-28 04:06:53,462 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/data/a40ad6d0a/f3fa08b4a5d7420d838482ec54c6a7eb/FLAGfada89e6d [2024-11-28 04:06:53,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/data/a40ad6d0a/f3fa08b4a5d7420d838482ec54c6a7eb [2024-11-28 04:06:53,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:06:53,541 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:06:53,548 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:06:53,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:06:53,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:06:53,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:06:53" (1/1) ... [2024-11-28 04:06:53,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2738c93a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53, skipping insertion in model container [2024-11-28 04:06:53,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:06:53" (1/1) ... [2024-11-28 04:06:53,592 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:06:53,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:06:53,862 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:06:53,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:06:53,931 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:06:53,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53 WrapperNode [2024-11-28 04:06:53,932 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:06:53,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:06:53,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:06:53,934 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:06:53,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53" (1/1) ... [2024-11-28 04:06:53,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53" (1/1) ... [2024-11-28 04:06:53,981 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2024-11-28 04:06:53,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:06:53,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:06:53,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:06:53,987 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:06:53,998 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53" (1/1) ... [2024-11-28 04:06:53,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53" (1/1) ... [2024-11-28 04:06:54,000 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53" (1/1) ... [2024-11-28 04:06:54,016 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2024-11-28 04:06:54,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53" (1/1) ... [2024-11-28 04:06:54,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53" (1/1) ... [2024-11-28 04:06:54,020 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53" (1/1) ... [2024-11-28 04:06:54,021 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53" (1/1) ... [2024-11-28 04:06:54,026 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53" (1/1) ... [2024-11-28 04:06:54,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53" (1/1) ... [2024-11-28 04:06:54,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53" (1/1) ... [2024-11-28 04:06:54,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:06:54,043 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:06:54,044 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:06:54,044 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:06:54,045 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53" (1/1) ... [2024-11-28 04:06:54,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:06:54,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:54,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:06:54,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:06:54,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:06:54,139 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:06:54,139 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:06:54,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:06:54,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:06:54,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:06:54,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:06:54,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:06:54,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:06:54,221 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:06:54,223 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:06:54,625 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-28 04:06:54,625 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:06:54,644 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:06:54,646 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-28 04:06:54,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:06:54 BoogieIcfgContainer [2024-11-28 04:06:54,647 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:06:54,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:06:54,651 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:06:54,661 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:06:54,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:06:53" (1/3) ... [2024-11-28 04:06:54,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285b6ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:06:54, skipping insertion in model container [2024-11-28 04:06:54,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:06:53" (2/3) ... [2024-11-28 04:06:54,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285b6ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:06:54, skipping insertion in model container [2024-11-28 04:06:54,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:06:54" (3/3) ... [2024-11-28 04:06:54,667 INFO L128 eAbstractionObserver]: Analyzing ICFG lcm1_unwindbound5.c [2024-11-28 04:06:54,690 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:06:54,692 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG lcm1_unwindbound5.c that has 3 procedures, 47 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2024-11-28 04:06:54,790 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:06:54,811 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;@e81d7c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:06:54,811 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-28 04:06:54,817 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 35 states have internal predecessors, (46), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:06:54,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 04:06:54,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:54,827 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:54,828 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:06:54,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:54,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2022069437, now seen corresponding path program 1 times [2024-11-28 04:06:54,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:54,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18144726] [2024-11-28 04:06:54,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:54,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:55,083 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 04:06:55,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:55,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18144726] [2024-11-28 04:06:55,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18144726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:06:55,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553310832] [2024-11-28 04:06:55,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:55,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:55,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:55,094 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:55,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:06:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:55,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:06:55,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:55,260 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 04:06:55,261 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:06:55,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553310832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:55,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:06:55,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:06:55,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031400572] [2024-11-28 04:06:55,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:55,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:06:55,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:55,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:06:55,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:06:55,308 INFO L87 Difference]: Start difference. First operand has 47 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 35 states have internal predecessors, (46), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) 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 04:06:55,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:55,351 INFO L93 Difference]: Finished difference Result 90 states and 132 transitions. [2024-11-28 04:06:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:06:55,354 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 04:06:55,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:55,365 INFO L225 Difference]: With dead ends: 90 [2024-11-28 04:06:55,365 INFO L226 Difference]: Without dead ends: 39 [2024-11-28 04:06:55,370 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 04:06:55,379 INFO L435 NwaCegarLoop]: 58 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, 58 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 04:06:55,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:06:55,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-28 04:06:55,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-28 04:06:55,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 29 states have internal predecessors, (34), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 04:06:55,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2024-11-28 04:06:55,446 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 25 [2024-11-28 04:06:55,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:55,448 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2024-11-28 04:06:55,448 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 04:06:55,449 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2024-11-28 04:06:55,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 04:06:55,450 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:55,450 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:55,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:06:55,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:06:55,652 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:06:55,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:55,653 INFO L85 PathProgramCache]: Analyzing trace with hash -2112941507, now seen corresponding path program 1 times [2024-11-28 04:06:55,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:55,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371814231] [2024-11-28 04:06:55,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:55,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:56,017 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 04:06:56,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:56,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371814231] [2024-11-28 04:06:56,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371814231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:56,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:56,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:06:56,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469289933] [2024-11-28 04:06:56,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:56,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:06:56,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:56,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:06:56,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:06:56,020 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 04:06:56,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:56,133 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2024-11-28 04:06:56,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:06:56,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 04:06:56,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:56,137 INFO L225 Difference]: With dead ends: 45 [2024-11-28 04:06:56,137 INFO L226 Difference]: Without dead ends: 43 [2024-11-28 04:06:56,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:06:56,138 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 11 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:56,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 112 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:06:56,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-28 04:06:56,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2024-11-28 04:06:56,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 32 states have internal predecessors, (37), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 04:06:56,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2024-11-28 04:06:56,159 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 25 [2024-11-28 04:06:56,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:56,164 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2024-11-28 04:06:56,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 04:06:56,165 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2024-11-28 04:06:56,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 04:06:56,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:56,167 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] [2024-11-28 04:06:56,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:06:56,167 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:06:56,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:56,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1187336732, now seen corresponding path program 1 times [2024-11-28 04:06:56,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:56,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533480191] [2024-11-28 04:06:56,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:56,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:56,564 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 04:06:56,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:56,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533480191] [2024-11-28 04:06:56,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533480191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:56,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:56,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:06:56,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546598747] [2024-11-28 04:06:56,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:56,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:06:56,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:56,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:06:56,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:06:56,568 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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 04:06:56,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:56,873 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2024-11-28 04:06:56,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:06:56,875 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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 35 [2024-11-28 04:06:56,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:56,877 INFO L225 Difference]: With dead ends: 62 [2024-11-28 04:06:56,877 INFO L226 Difference]: Without dead ends: 61 [2024-11-28 04:06:56,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 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 04:06:56,878 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 28 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:56,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 177 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:06:56,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-28 04:06:56,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2024-11-28 04:06:56,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 42 states have internal predecessors, (50), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:06:56,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 68 transitions. [2024-11-28 04:06:56,899 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 68 transitions. Word has length 35 [2024-11-28 04:06:56,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:56,899 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 68 transitions. [2024-11-28 04:06:56,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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 04:06:56,900 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2024-11-28 04:06:56,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 04:06:56,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:56,903 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 04:06:56,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:06:56,904 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:06:56,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:56,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1847266907, now seen corresponding path program 1 times [2024-11-28 04:06:56,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:56,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938594075] [2024-11-28 04:06:56,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:56,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:57,189 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 04:06:57,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:57,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938594075] [2024-11-28 04:06:57,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938594075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:57,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:57,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:06:57,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564905690] [2024-11-28 04:06:57,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:57,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:06:57,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:57,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:06:57,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:06:57,191 INFO L87 Difference]: Start difference. First operand 55 states and 68 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 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 04:06:57,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:57,338 INFO L93 Difference]: Finished difference Result 91 states and 111 transitions. [2024-11-28 04:06:57,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:06:57,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 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 04:06:57,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:57,342 INFO L225 Difference]: With dead ends: 91 [2024-11-28 04:06:57,342 INFO L226 Difference]: Without dead ends: 63 [2024-11-28 04:06:57,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:06:57,348 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 22 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:57,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 144 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:06:57,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-28 04:06:57,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-28 04:06:57,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 49 states have internal predecessors, (57), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:06:57,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2024-11-28 04:06:57,370 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 36 [2024-11-28 04:06:57,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:57,370 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2024-11-28 04:06:57,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 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 04:06:57,371 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2024-11-28 04:06:57,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 04:06:57,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:57,374 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] [2024-11-28 04:06:57,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:06:57,375 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:06:57,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:57,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1777757559, now seen corresponding path program 1 times [2024-11-28 04:06:57,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:57,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391227609] [2024-11-28 04:06:57,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:57,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:57,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:57,671 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 04:06:57,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:57,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391227609] [2024-11-28 04:06:57,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391227609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:57,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:57,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:06:57,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132568541] [2024-11-28 04:06:57,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:57,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:06:57,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:57,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:06:57,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:06:57,674 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 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 04:06:58,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:58,148 INFO L93 Difference]: Finished difference Result 81 states and 94 transitions. [2024-11-28 04:06:58,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:06:58,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 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 45 [2024-11-28 04:06:58,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:58,151 INFO L225 Difference]: With dead ends: 81 [2024-11-28 04:06:58,151 INFO L226 Difference]: Without dead ends: 80 [2024-11-28 04:06:58,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:06:58,153 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 40 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:58,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 232 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:06:58,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-28 04:06:58,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 73. [2024-11-28 04:06:58,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 57 states have internal predecessors, (68), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:06:58,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2024-11-28 04:06:58,166 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 45 [2024-11-28 04:06:58,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:58,167 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2024-11-28 04:06:58,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 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 04:06:58,168 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2024-11-28 04:06:58,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 04:06:58,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:58,169 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] [2024-11-28 04:06:58,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:06:58,170 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:06:58,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:58,175 INFO L85 PathProgramCache]: Analyzing trace with hash 724090606, now seen corresponding path program 1 times [2024-11-28 04:06:58,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:58,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387981854] [2024-11-28 04:06:58,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:58,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:58,516 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 04:06:58,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:58,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387981854] [2024-11-28 04:06:58,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387981854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:58,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:58,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:06:58,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511906130] [2024-11-28 04:06:58,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:58,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:06:58,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:58,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:06:58,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:06:58,519 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 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 04:06:58,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:58,883 INFO L93 Difference]: Finished difference Result 115 states and 139 transitions. [2024-11-28 04:06:58,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:06:58,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 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 46 [2024-11-28 04:06:58,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:58,888 INFO L225 Difference]: With dead ends: 115 [2024-11-28 04:06:58,889 INFO L226 Difference]: Without dead ends: 87 [2024-11-28 04:06:58,889 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:06:58,890 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 33 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:58,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 186 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:06:58,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-28 04:06:58,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2024-11-28 04:06:58,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 65 states have internal predecessors, (77), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 04:06:58,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 99 transitions. [2024-11-28 04:06:58,917 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 99 transitions. Word has length 46 [2024-11-28 04:06:58,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:58,917 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 99 transitions. [2024-11-28 04:06:58,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 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 04:06:58,918 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 99 transitions. [2024-11-28 04:06:58,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 04:06:58,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:58,919 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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 04:06:58,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:06:58,923 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:06:58,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:58,925 INFO L85 PathProgramCache]: Analyzing trace with hash 724128342, now seen corresponding path program 1 times [2024-11-28 04:06:58,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:58,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186535670] [2024-11-28 04:06:58,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:58,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:59,214 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:06:59,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:59,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186535670] [2024-11-28 04:06:59,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186535670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:06:59,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248310727] [2024-11-28 04:06:59,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:59,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:59,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:59,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:59,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:06:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:59,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:06:59,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:59,524 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:06:59,524 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:06:59,798 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:06:59,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248310727] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:06:59,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:06:59,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-28 04:06:59,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76469474] [2024-11-28 04:06:59,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:06:59,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:06:59,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:59,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:06:59,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:06:59,806 INFO L87 Difference]: Start difference. First operand 83 states and 99 transitions. Second operand has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-28 04:07:00,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:00,819 INFO L93 Difference]: Finished difference Result 233 states and 283 transitions. [2024-11-28 04:07:00,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 04:07:00,820 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 46 [2024-11-28 04:07:00,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:00,823 INFO L225 Difference]: With dead ends: 233 [2024-11-28 04:07:00,823 INFO L226 Difference]: Without dead ends: 195 [2024-11-28 04:07:00,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:07:00,825 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 114 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:00,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 289 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:07:00,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-28 04:07:00,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 163. [2024-11-28 04:07:00,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 125 states have (on average 1.272) internal successors, (159), 130 states have internal predecessors, (159), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:07:00,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 195 transitions. [2024-11-28 04:07:00,851 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 195 transitions. Word has length 46 [2024-11-28 04:07:00,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:00,852 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 195 transitions. [2024-11-28 04:07:00,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-28 04:07:00,853 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 195 transitions. [2024-11-28 04:07:00,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 04:07:00,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:00,854 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] [2024-11-28 04:07:00,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:07:01,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 04:07:01,059 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:01,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:01,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1101872824, now seen corresponding path program 1 times [2024-11-28 04:07:01,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:01,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838764649] [2024-11-28 04:07:01,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:01,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:01,276 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:07:01,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:01,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838764649] [2024-11-28 04:07:01,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838764649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:01,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:01,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:07:01,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157023246] [2024-11-28 04:07:01,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:01,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:07:01,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:01,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:07:01,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:07:01,279 INFO L87 Difference]: Start difference. First operand 163 states and 195 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 04:07:01,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:01,498 INFO L93 Difference]: Finished difference Result 270 states and 329 transitions. [2024-11-28 04:07:01,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:07:01,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 55 [2024-11-28 04:07:01,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:01,502 INFO L225 Difference]: With dead ends: 270 [2024-11-28 04:07:01,502 INFO L226 Difference]: Without dead ends: 205 [2024-11-28 04:07:01,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 04:07:01,504 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 32 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:01,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 172 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:07:01,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-28 04:07:01,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 183. [2024-11-28 04:07:01,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 141 states have (on average 1.2907801418439717) internal successors, (182), 146 states have internal predecessors, (182), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 04:07:01,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 226 transitions. [2024-11-28 04:07:01,534 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 226 transitions. Word has length 55 [2024-11-28 04:07:01,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:01,535 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 226 transitions. [2024-11-28 04:07:01,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 04:07:01,535 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 226 transitions. [2024-11-28 04:07:01,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 04:07:01,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:01,537 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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 04:07:01,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:07:01,537 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:01,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:01,538 INFO L85 PathProgramCache]: Analyzing trace with hash 201782157, now seen corresponding path program 1 times [2024-11-28 04:07:01,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:01,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940774079] [2024-11-28 04:07:01,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:01,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:01,816 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:07:01,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:01,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940774079] [2024-11-28 04:07:01,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940774079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:01,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188409321] [2024-11-28 04:07:01,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:01,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:01,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:01,821 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:01,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:07:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:01,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:07:01,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:02,099 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:07:02,100 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:02,394 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:07:02,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188409321] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:07:02,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:07:02,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2024-11-28 04:07:02,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873155873] [2024-11-28 04:07:02,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:02,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 04:07:02,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:02,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 04:07:02,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=469, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:07:02,401 INFO L87 Difference]: Start difference. First operand 183 states and 226 transitions. Second operand has 25 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 25 states have internal predecessors, (73), 11 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-28 04:07:04,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:04,424 INFO L93 Difference]: Finished difference Result 379 states and 473 transitions. [2024-11-28 04:07:04,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-28 04:07:04,425 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 25 states have internal predecessors, (73), 11 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) Word has length 56 [2024-11-28 04:07:04,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:04,429 INFO L225 Difference]: With dead ends: 379 [2024-11-28 04:07:04,429 INFO L226 Difference]: Without dead ends: 296 [2024-11-28 04:07:04,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=507, Invalid=1943, Unknown=0, NotChecked=0, Total=2450 [2024-11-28 04:07:04,433 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 175 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:04,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 327 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:07:04,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-28 04:07:04,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 263. [2024-11-28 04:07:04,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 206 states have (on average 1.2766990291262137) internal successors, (263), 211 states have internal predecessors, (263), 29 states have call successors, (29), 22 states have call predecessors, (29), 22 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-28 04:07:04,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 321 transitions. [2024-11-28 04:07:04,462 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 321 transitions. Word has length 56 [2024-11-28 04:07:04,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:04,463 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 321 transitions. [2024-11-28 04:07:04,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 25 states have internal predecessors, (73), 11 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-28 04:07:04,464 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 321 transitions. [2024-11-28 04:07:04,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 04:07:04,465 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:04,465 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1] [2024-11-28 04:07:04,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:07:04,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-28 04:07:04,666 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:04,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:04,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1708398527, now seen corresponding path program 1 times [2024-11-28 04:07:04,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:04,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426799291] [2024-11-28 04:07:04,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:04,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:04,892 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:07:04,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:04,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426799291] [2024-11-28 04:07:04,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426799291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:04,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156530753] [2024-11-28 04:07:04,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:04,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:04,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:04,896 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:04,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:07:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:04,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:07:04,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:05,146 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:07:05,147 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:05,359 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:07:05,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156530753] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:07:05,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:07:05,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 17 [2024-11-28 04:07:05,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306784934] [2024-11-28 04:07:05,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:05,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:07:05,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:05,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:07:05,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:07:05,362 INFO L87 Difference]: Start difference. First operand 263 states and 321 transitions. Second operand has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 6 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-28 04:07:06,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:06,086 INFO L93 Difference]: Finished difference Result 425 states and 526 transitions. [2024-11-28 04:07:06,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:07:06,087 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 6 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 59 [2024-11-28 04:07:06,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:06,089 INFO L225 Difference]: With dead ends: 425 [2024-11-28 04:07:06,090 INFO L226 Difference]: Without dead ends: 286 [2024-11-28 04:07:06,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 108 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=602, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:07:06,092 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 47 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:06,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 378 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:07:06,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-28 04:07:06,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 281. [2024-11-28 04:07:06,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 222 states have (on average 1.2567567567567568) internal successors, (279), 227 states have internal predecessors, (279), 30 states have call successors, (30), 23 states have call predecessors, (30), 23 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 04:07:06,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 339 transitions. [2024-11-28 04:07:06,121 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 339 transitions. Word has length 59 [2024-11-28 04:07:06,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:06,121 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 339 transitions. [2024-11-28 04:07:06,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 6 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-28 04:07:06,122 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 339 transitions. [2024-11-28 04:07:06,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 04:07:06,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:06,123 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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 04:07:06,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:07:06,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 04:07:06,328 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:06,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:06,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1681109111, now seen corresponding path program 1 times [2024-11-28 04:07:06,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:06,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568970359] [2024-11-28 04:07:06,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:06,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:06,606 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:07:06,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:06,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568970359] [2024-11-28 04:07:06,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568970359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:06,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496049580] [2024-11-28 04:07:06,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:06,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:06,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:06,609 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:06,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:07:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:06,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:07:06,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:06,930 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:07:06,930 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:07:06,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496049580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:06,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:07:06,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 21 [2024-11-28 04:07:06,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271557863] [2024-11-28 04:07:06,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:06,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:07:06,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:06,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:07:06,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:07:06,933 INFO L87 Difference]: Start difference. First operand 281 states and 339 transitions. Second operand has 11 states, 10 states have (on average 4.0) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-28 04:07:07,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:07,517 INFO L93 Difference]: Finished difference Result 349 states and 421 transitions. [2024-11-28 04:07:07,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:07:07,518 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.0) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 65 [2024-11-28 04:07:07,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:07,521 INFO L225 Difference]: With dead ends: 349 [2024-11-28 04:07:07,521 INFO L226 Difference]: Without dead ends: 346 [2024-11-28 04:07:07,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992 [2024-11-28 04:07:07,526 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 54 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:07,527 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 142 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:07:07,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-28 04:07:07,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 255. [2024-11-28 04:07:07,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 202 states have (on average 1.183168316831683) internal successors, (239), 205 states have internal predecessors, (239), 28 states have call successors, (28), 22 states have call predecessors, (28), 22 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 04:07:07,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 295 transitions. [2024-11-28 04:07:07,573 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 295 transitions. Word has length 65 [2024-11-28 04:07:07,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:07,574 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 295 transitions. [2024-11-28 04:07:07,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.0) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-28 04:07:07,575 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 295 transitions. [2024-11-28 04:07:07,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 04:07:07,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:07,581 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] [2024-11-28 04:07:07,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:07:07,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 04:07:07,782 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:07,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:07,782 INFO L85 PathProgramCache]: Analyzing trace with hash -574774844, now seen corresponding path program 1 times [2024-11-28 04:07:07,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:07,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633268874] [2024-11-28 04:07:07,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:07,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:08,050 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:07:08,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:08,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633268874] [2024-11-28 04:07:08,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633268874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:08,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786075842] [2024-11-28 04:07:08,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:08,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:08,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:08,054 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:08,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:07:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:08,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:07:08,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:08,362 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:07:08,362 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:08,646 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:07:08,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786075842] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:07:08,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:07:08,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 30 [2024-11-28 04:07:08,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886645955] [2024-11-28 04:07:08,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:08,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-28 04:07:08,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:08,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-28 04:07:08,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=740, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:07:08,650 INFO L87 Difference]: Start difference. First operand 255 states and 295 transitions. Second operand has 31 states, 30 states have (on average 3.033333333333333) internal successors, (91), 31 states have internal predecessors, (91), 14 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-28 04:07:10,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:10,304 INFO L93 Difference]: Finished difference Result 294 states and 342 transitions. [2024-11-28 04:07:10,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-28 04:07:10,305 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.033333333333333) internal successors, (91), 31 states have internal predecessors, (91), 14 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) Word has length 66 [2024-11-28 04:07:10,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:10,309 INFO L225 Difference]: With dead ends: 294 [2024-11-28 04:07:10,309 INFO L226 Difference]: Without dead ends: 293 [2024-11-28 04:07:10,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=715, Invalid=2945, Unknown=0, NotChecked=0, Total=3660 [2024-11-28 04:07:10,313 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 174 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:10,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 369 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:07:10,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-28 04:07:10,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 268. [2024-11-28 04:07:10,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 213 states have (on average 1.1784037558685445) internal successors, (251), 216 states have internal predecessors, (251), 29 states have call successors, (29), 23 states have call predecessors, (29), 23 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-28 04:07:10,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 309 transitions. [2024-11-28 04:07:10,347 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 309 transitions. Word has length 66 [2024-11-28 04:07:10,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:10,348 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 309 transitions. [2024-11-28 04:07:10,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.033333333333333) internal successors, (91), 31 states have internal predecessors, (91), 14 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-28 04:07:10,348 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 309 transitions. [2024-11-28 04:07:10,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 04:07:10,351 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:10,352 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2024-11-28 04:07:10,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:07:10,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 04:07:10,553 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:10,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:10,554 INFO L85 PathProgramCache]: Analyzing trace with hash 23576615, now seen corresponding path program 1 times [2024-11-28 04:07:10,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:10,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623744817] [2024-11-28 04:07:10,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:10,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:10,862 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:07:10,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:10,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623744817] [2024-11-28 04:07:10,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623744817] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:10,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317372309] [2024-11-28 04:07:10,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:10,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:10,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:10,866 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:10,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:07:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:10,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:07:10,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:11,132 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:07:11,132 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:11,339 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:07:11,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317372309] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:07:11,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:07:11,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 15 [2024-11-28 04:07:11,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99680186] [2024-11-28 04:07:11,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:11,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:07:11,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:11,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:07:11,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:07:11,343 INFO L87 Difference]: Start difference. First operand 268 states and 309 transitions. Second operand has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 6 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-28 04:07:11,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:11,763 INFO L93 Difference]: Finished difference Result 427 states and 497 transitions. [2024-11-28 04:07:11,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:07:11,763 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 6 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 70 [2024-11-28 04:07:11,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:11,767 INFO L225 Difference]: With dead ends: 427 [2024-11-28 04:07:11,767 INFO L226 Difference]: Without dead ends: 268 [2024-11-28 04:07:11,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 128 SyntacticMatches, 10 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:07:11,771 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 53 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:11,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 282 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:07:11,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-28 04:07:11,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-11-28 04:07:11,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 213 states have (on average 1.1737089201877935) internal successors, (250), 216 states have internal predecessors, (250), 29 states have call successors, (29), 23 states have call predecessors, (29), 23 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-28 04:07:11,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 308 transitions. [2024-11-28 04:07:11,810 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 308 transitions. Word has length 70 [2024-11-28 04:07:11,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:11,811 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 308 transitions. [2024-11-28 04:07:11,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 6 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-28 04:07:11,811 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 308 transitions. [2024-11-28 04:07:11,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 04:07:11,813 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:11,814 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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 04:07:11,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:07:12,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 04:07:12,018 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:12,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:12,019 INFO L85 PathProgramCache]: Analyzing trace with hash -537286271, now seen corresponding path program 1 times [2024-11-28 04:07:12,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:12,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397092951] [2024-11-28 04:07:12,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:12,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:12,383 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:07:12,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:12,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397092951] [2024-11-28 04:07:12,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397092951] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:12,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197345153] [2024-11-28 04:07:12,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:12,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:12,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:12,387 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:12,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:07:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:12,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:07:12,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:12,792 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:07:12,792 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:13,228 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:07:13,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197345153] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:07:13,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:07:13,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 35 [2024-11-28 04:07:13,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190163454] [2024-11-28 04:07:13,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:13,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-28 04:07:13,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:13,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-28 04:07:13,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=988, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:07:13,233 INFO L87 Difference]: Start difference. First operand 268 states and 308 transitions. Second operand has 36 states, 35 states have (on average 3.1142857142857143) internal successors, (109), 36 states have internal predecessors, (109), 16 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 16 states have call predecessors, (23), 16 states have call successors, (23) [2024-11-28 04:07:15,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:15,361 INFO L93 Difference]: Finished difference Result 456 states and 538 transitions. [2024-11-28 04:07:15,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-28 04:07:15,361 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 3.1142857142857143) internal successors, (109), 36 states have internal predecessors, (109), 16 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 16 states have call predecessors, (23), 16 states have call successors, (23) Word has length 76 [2024-11-28 04:07:15,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:15,365 INFO L225 Difference]: With dead ends: 456 [2024-11-28 04:07:15,367 INFO L226 Difference]: Without dead ends: 454 [2024-11-28 04:07:15,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1301 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1283, Invalid=4723, Unknown=0, NotChecked=0, Total=6006 [2024-11-28 04:07:15,371 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 321 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:15,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 419 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:07:15,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-28 04:07:15,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 387. [2024-11-28 04:07:15,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 308 states have (on average 1.1948051948051948) internal successors, (368), 311 states have internal predecessors, (368), 41 states have call successors, (41), 35 states have call predecessors, (41), 35 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-28 04:07:15,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 450 transitions. [2024-11-28 04:07:15,409 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 450 transitions. Word has length 76 [2024-11-28 04:07:15,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:15,410 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 450 transitions. [2024-11-28 04:07:15,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 3.1142857142857143) internal successors, (109), 36 states have internal predecessors, (109), 16 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 16 states have call predecessors, (23), 16 states have call successors, (23) [2024-11-28 04:07:15,411 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 450 transitions. [2024-11-28 04:07:15,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 04:07:15,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:15,413 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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 04:07:15,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:07:15,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 04:07:15,615 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:15,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:15,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1874759056, now seen corresponding path program 1 times [2024-11-28 04:07:15,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:15,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985367813] [2024-11-28 04:07:15,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:15,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:16,016 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:07:16,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:16,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985367813] [2024-11-28 04:07:16,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985367813] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:16,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459186710] [2024-11-28 04:07:16,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:16,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:16,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:16,019 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:16,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:07:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:16,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:07:16,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:16,418 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 3 proven. 76 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:07:16,419 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:16,880 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:07:16,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459186710] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:07:16,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:07:16,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 40 [2024-11-28 04:07:16,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206930222] [2024-11-28 04:07:16,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:16,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-28 04:07:16,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:16,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-28 04:07:16,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=1315, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:07:16,888 INFO L87 Difference]: Start difference. First operand 387 states and 450 transitions. Second operand has 41 states, 40 states have (on average 3.025) internal successors, (121), 41 states have internal predecessors, (121), 16 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 16 states have call predecessors, (23), 16 states have call successors, (23) [2024-11-28 04:07:19,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:19,329 INFO L93 Difference]: Finished difference Result 497 states and 575 transitions. [2024-11-28 04:07:19,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-28 04:07:19,330 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 3.025) internal successors, (121), 41 states have internal predecessors, (121), 16 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 16 states have call predecessors, (23), 16 states have call successors, (23) Word has length 80 [2024-11-28 04:07:19,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:19,333 INFO L225 Difference]: With dead ends: 497 [2024-11-28 04:07:19,333 INFO L226 Difference]: Without dead ends: 496 [2024-11-28 04:07:19,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1691 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1498, Invalid=6158, Unknown=0, NotChecked=0, Total=7656 [2024-11-28 04:07:19,336 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 327 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:19,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 451 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:07:19,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-28 04:07:19,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 345. [2024-11-28 04:07:19,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 274 states have (on average 1.1934306569343065) internal successors, (327), 277 states have internal predecessors, (327), 37 states have call successors, (37), 31 states have call predecessors, (37), 31 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-28 04:07:19,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 401 transitions. [2024-11-28 04:07:19,370 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 401 transitions. Word has length 80 [2024-11-28 04:07:19,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:19,371 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 401 transitions. [2024-11-28 04:07:19,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 3.025) internal successors, (121), 41 states have internal predecessors, (121), 16 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 16 states have call predecessors, (23), 16 states have call successors, (23) [2024-11-28 04:07:19,371 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 401 transitions. [2024-11-28 04:07:19,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 04:07:19,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:19,373 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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 04:07:19,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:07:19,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 04:07:19,577 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:19,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:19,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1958175579, now seen corresponding path program 1 times [2024-11-28 04:07:19,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:19,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487949499] [2024-11-28 04:07:19,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:19,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:19,922 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-28 04:07:19,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:19,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487949499] [2024-11-28 04:07:19,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487949499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:19,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566516519] [2024-11-28 04:07:19,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:19,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:19,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:19,925 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:19,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:07:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:20,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:07:20,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 127 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-28 04:07:20,192 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-28 04:07:20,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566516519] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:07:20,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:07:20,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 17 [2024-11-28 04:07:20,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614583145] [2024-11-28 04:07:20,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:20,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:07:20,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:20,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:07:20,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:07:20,401 INFO L87 Difference]: Start difference. First operand 345 states and 401 transitions. Second operand has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 17 states have internal predecessors, (72), 8 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-28 04:07:21,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:21,373 INFO L93 Difference]: Finished difference Result 769 states and 900 transitions. [2024-11-28 04:07:21,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:07:21,374 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 17 states have internal predecessors, (72), 8 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 96 [2024-11-28 04:07:21,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:21,379 INFO L225 Difference]: With dead ends: 769 [2024-11-28 04:07:21,380 INFO L226 Difference]: Without dead ends: 553 [2024-11-28 04:07:21,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 179 SyntacticMatches, 11 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=695, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:07:21,383 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 65 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:21,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 596 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:07:21,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-28 04:07:21,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 516. [2024-11-28 04:07:21,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 413 states have (on average 1.2130750605326877) internal successors, (501), 416 states have internal predecessors, (501), 53 states have call successors, (53), 47 states have call predecessors, (53), 47 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 04:07:21,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 607 transitions. [2024-11-28 04:07:21,452 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 607 transitions. Word has length 96 [2024-11-28 04:07:21,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:21,452 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 607 transitions. [2024-11-28 04:07:21,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 17 states have internal predecessors, (72), 8 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-28 04:07:21,453 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 607 transitions. [2024-11-28 04:07:21,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 04:07:21,455 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:21,456 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-28 04:07:21,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 04:07:21,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 04:07:21,656 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:21,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:21,657 INFO L85 PathProgramCache]: Analyzing trace with hash 923642390, now seen corresponding path program 1 times [2024-11-28 04:07:21,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:21,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291181819] [2024-11-28 04:07:21,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:21,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:21,794 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-28 04:07:21,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:21,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291181819] [2024-11-28 04:07:21,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291181819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:21,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:21,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:07:21,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830741870] [2024-11-28 04:07:21,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:21,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:07:21,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:21,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:07:21,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:07:21,799 INFO L87 Difference]: Start difference. First operand 516 states and 607 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 04:07:21,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:21,924 INFO L93 Difference]: Finished difference Result 932 states and 1104 transitions. [2024-11-28 04:07:21,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:07:21,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 100 [2024-11-28 04:07:21,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:21,929 INFO L225 Difference]: With dead ends: 932 [2024-11-28 04:07:21,929 INFO L226 Difference]: Without dead ends: 559 [2024-11-28 04:07:21,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:07:21,931 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 7 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:21,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 156 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:07:21,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-11-28 04:07:21,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 522. [2024-11-28 04:07:21,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 420 states have (on average 1.207142857142857) internal successors, (507), 423 states have internal predecessors, (507), 52 states have call successors, (52), 47 states have call predecessors, (52), 47 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:07:21,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 611 transitions. [2024-11-28 04:07:22,000 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 611 transitions. Word has length 100 [2024-11-28 04:07:22,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:22,001 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 611 transitions. [2024-11-28 04:07:22,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 04:07:22,001 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 611 transitions. [2024-11-28 04:07:22,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 04:07:22,003 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:22,003 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 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 04:07:22,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:07:22,003 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:22,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:22,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1140918632, now seen corresponding path program 2 times [2024-11-28 04:07:22,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:22,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170086985] [2024-11-28 04:07:22,004 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:07:22,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:22,032 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:07:22,032 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:07:22,230 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-11-28 04:07:22,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:22,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170086985] [2024-11-28 04:07:22,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170086985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:22,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:22,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:07:22,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407403543] [2024-11-28 04:07:22,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:22,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:07:22,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:22,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:07:22,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:07:22,232 INFO L87 Difference]: Start difference. First operand 522 states and 611 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:07:22,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:22,400 INFO L93 Difference]: Finished difference Result 550 states and 641 transitions. [2024-11-28 04:07:22,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:07:22,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 106 [2024-11-28 04:07:22,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:22,404 INFO L225 Difference]: With dead ends: 550 [2024-11-28 04:07:22,404 INFO L226 Difference]: Without dead ends: 549 [2024-11-28 04:07:22,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:07:22,406 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 24 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:22,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 133 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:07:22,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-28 04:07:22,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 525. [2024-11-28 04:07:22,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 423 states have (on average 1.2009456264775413) internal successors, (508), 426 states have internal predecessors, (508), 52 states have call successors, (52), 47 states have call predecessors, (52), 47 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:07:22,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 612 transitions. [2024-11-28 04:07:22,483 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 612 transitions. Word has length 106 [2024-11-28 04:07:22,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:22,483 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 612 transitions. [2024-11-28 04:07:22,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:07:22,484 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 612 transitions. [2024-11-28 04:07:22,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 04:07:22,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:22,486 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 4, 4, 4, 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 04:07:22,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:07:22,486 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:22,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:22,487 INFO L85 PathProgramCache]: Analyzing trace with hash -533166377, now seen corresponding path program 1 times [2024-11-28 04:07:22,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:22,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629416873] [2024-11-28 04:07:22,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:22,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:22,663 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 41 proven. 1 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-11-28 04:07:22,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:22,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629416873] [2024-11-28 04:07:22,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629416873] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:22,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577363232] [2024-11-28 04:07:22,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:22,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:22,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:22,666 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:22,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:07:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:22,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:07:22,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:23,057 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 196 proven. 3 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-28 04:07:23,057 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-28 04:07:23,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577363232] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:07:23,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:07:23,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13, 14] total 19 [2024-11-28 04:07:23,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439000952] [2024-11-28 04:07:23,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:23,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:07:23,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:23,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:07:23,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:07:23,315 INFO L87 Difference]: Start difference. First operand 525 states and 612 transitions. Second operand has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 9 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-28 04:07:24,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:24,335 INFO L93 Difference]: Finished difference Result 824 states and 962 transitions. [2024-11-28 04:07:24,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 04:07:24,336 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 9 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) Word has length 110 [2024-11-28 04:07:24,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:24,339 INFO L225 Difference]: With dead ends: 824 [2024-11-28 04:07:24,339 INFO L226 Difference]: Without dead ends: 602 [2024-11-28 04:07:24,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 199 SyntacticMatches, 11 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=388, Invalid=1504, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 04:07:24,341 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 77 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:24,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 420 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:07:24,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-28 04:07:24,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 425. [2024-11-28 04:07:24,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 345 states have (on average 1.1884057971014492) internal successors, (410), 348 states have internal predecessors, (410), 41 states have call successors, (41), 36 states have call predecessors, (41), 36 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-28 04:07:24,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 492 transitions. [2024-11-28 04:07:24,386 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 492 transitions. Word has length 110 [2024-11-28 04:07:24,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:24,387 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 492 transitions. [2024-11-28 04:07:24,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 9 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-28 04:07:24,387 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 492 transitions. [2024-11-28 04:07:24,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 04:07:24,391 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:24,391 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 10, 10, 9, 9, 9, 9, 8, 4, 4, 4, 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 04:07:24,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 04:07:24,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:24,592 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:24,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:24,593 INFO L85 PathProgramCache]: Analyzing trace with hash 200484705, now seen corresponding path program 1 times [2024-11-28 04:07:24,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:24,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938947807] [2024-11-28 04:07:24,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:24,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:24,818 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-11-28 04:07:24,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:24,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938947807] [2024-11-28 04:07:24,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938947807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:24,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723615598] [2024-11-28 04:07:24,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:24,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:24,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:24,822 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:24,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:07:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:24,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:07:24,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:25,178 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 293 proven. 1 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-11-28 04:07:25,178 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:25,452 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 93 proven. 1 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2024-11-28 04:07:25,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723615598] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:07:25,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:07:25,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13, 14] total 19 [2024-11-28 04:07:25,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288320669] [2024-11-28 04:07:25,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:25,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:07:25,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:25,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:07:25,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:07:25,454 INFO L87 Difference]: Start difference. First operand 425 states and 492 transitions. Second operand has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 10 states have call successors, (29), 8 states have call predecessors, (29), 8 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-28 04:07:26,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:26,395 INFO L93 Difference]: Finished difference Result 786 states and 912 transitions. [2024-11-28 04:07:26,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 04:07:26,396 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 10 states have call successors, (29), 8 states have call predecessors, (29), 8 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 156 [2024-11-28 04:07:26,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:26,399 INFO L225 Difference]: With dead ends: 786 [2024-11-28 04:07:26,399 INFO L226 Difference]: Without dead ends: 341 [2024-11-28 04:07:26,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 289 SyntacticMatches, 11 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=248, Invalid=1234, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 04:07:26,401 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 111 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:26,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 388 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:07:26,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-28 04:07:26,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 202. [2024-11-28 04:07:26,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 161 states have (on average 1.1677018633540373) internal successors, (188), 162 states have internal predecessors, (188), 21 states have call successors, (21), 18 states have call predecessors, (21), 18 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 04:07:26,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 230 transitions. [2024-11-28 04:07:26,424 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 230 transitions. Word has length 156 [2024-11-28 04:07:26,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:26,424 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 230 transitions. [2024-11-28 04:07:26,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 10 states have call successors, (29), 8 states have call predecessors, (29), 8 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-28 04:07:26,425 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 230 transitions. [2024-11-28 04:07:26,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 04:07:26,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:26,427 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 10, 10, 10, 9, 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] [2024-11-28 04:07:26,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:07:26,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:26,631 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:26,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:26,631 INFO L85 PathProgramCache]: Analyzing trace with hash 601299938, now seen corresponding path program 1 times [2024-11-28 04:07:26,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:26,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664536958] [2024-11-28 04:07:26,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:26,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:26,756 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2024-11-28 04:07:26,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:26,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664536958] [2024-11-28 04:07:26,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664536958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:26,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:26,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:07:26,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413498110] [2024-11-28 04:07:26,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:26,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:07:26,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:26,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:07:26,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:07:26,758 INFO L87 Difference]: Start difference. First operand 202 states and 230 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:07:26,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:26,980 INFO L93 Difference]: Finished difference Result 356 states and 407 transitions. [2024-11-28 04:07:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:07:26,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 160 [2024-11-28 04:07:26,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:26,983 INFO L225 Difference]: With dead ends: 356 [2024-11-28 04:07:26,983 INFO L226 Difference]: Without dead ends: 193 [2024-11-28 04:07:26,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 04:07:26,988 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 13 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:26,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 143 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:07:26,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-28 04:07:27,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 181. [2024-11-28 04:07:27,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 144 states have (on average 1.0902777777777777) internal successors, (157), 145 states have internal predecessors, (157), 19 states have call successors, (19), 16 states have call predecessors, (19), 16 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:07:27,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 195 transitions. [2024-11-28 04:07:27,007 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 195 transitions. Word has length 160 [2024-11-28 04:07:27,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:27,008 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 195 transitions. [2024-11-28 04:07:27,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:07:27,008 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 195 transitions. [2024-11-28 04:07:27,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 04:07:27,011 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:27,012 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 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] [2024-11-28 04:07:27,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:07:27,012 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:27,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:27,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2077488352, now seen corresponding path program 2 times [2024-11-28 04:07:27,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:27,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673975330] [2024-11-28 04:07:27,013 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:07:27,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:27,066 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:07:27,069 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:07:27,345 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 137 proven. 7 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2024-11-28 04:07:27,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:27,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673975330] [2024-11-28 04:07:27,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673975330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:27,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041862243] [2024-11-28 04:07:27,346 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:07:27,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:27,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:27,349 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:27,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:07:27,456 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:07:27,456 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:07:27,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:07:27,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 472 proven. 4 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-28 04:07:27,820 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:28,144 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 272 proven. 4 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2024-11-28 04:07:28,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041862243] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:07:28,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:07:28,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 14] total 22 [2024-11-28 04:07:28,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463325209] [2024-11-28 04:07:28,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:28,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:07:28,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:28,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:07:28,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:07:28,147 INFO L87 Difference]: Start difference. First operand 181 states and 195 transitions. Second operand has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 22 states have internal predecessors, (96), 10 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2024-11-28 04:07:29,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:29,232 INFO L93 Difference]: Finished difference Result 308 states and 335 transitions. [2024-11-28 04:07:29,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 04:07:29,233 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 22 states have internal predecessors, (96), 10 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 160 [2024-11-28 04:07:29,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:29,235 INFO L225 Difference]: With dead ends: 308 [2024-11-28 04:07:29,235 INFO L226 Difference]: Without dead ends: 188 [2024-11-28 04:07:29,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 296 SyntacticMatches, 11 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=373, Invalid=1433, Unknown=0, NotChecked=0, Total=1806 [2024-11-28 04:07:29,242 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 77 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:29,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 451 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:07:29,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-28 04:07:29,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 184. [2024-11-28 04:07:29,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 148 states have (on average 1.0743243243243243) internal successors, (159), 148 states have internal predecessors, (159), 19 states have call successors, (19), 16 states have call predecessors, (19), 16 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:07:29,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 197 transitions. [2024-11-28 04:07:29,276 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 197 transitions. Word has length 160 [2024-11-28 04:07:29,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:29,276 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 197 transitions. [2024-11-28 04:07:29,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 22 states have internal predecessors, (96), 10 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2024-11-28 04:07:29,277 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 197 transitions. [2024-11-28 04:07:29,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 04:07:29,280 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:29,280 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:29,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 04:07:29,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 04:07:29,481 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:07:29,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:29,482 INFO L85 PathProgramCache]: Analyzing trace with hash 224533506, now seen corresponding path program 1 times [2024-11-28 04:07:29,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:29,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787322835] [2024-11-28 04:07:29,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:29,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:29,779 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 95 proven. 1 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2024-11-28 04:07:29,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:29,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787322835] [2024-11-28 04:07:29,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787322835] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:29,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621378279] [2024-11-28 04:07:29,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:29,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:29,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:29,782 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:29,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:07:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:29,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:07:29,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:29,966 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 444 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2024-11-28 04:07:29,966 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:07:29,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621378279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:29,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:07:29,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2024-11-28 04:07:29,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247934403] [2024-11-28 04:07:29,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:29,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:07:29,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:29,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:07:29,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:07:29,968 INFO L87 Difference]: Start difference. First operand 184 states and 197 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:07:30,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:30,051 INFO L93 Difference]: Finished difference Result 192 states and 205 transitions. [2024-11-28 04:07:30,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:07:30,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 182 [2024-11-28 04:07:30,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:30,053 INFO L225 Difference]: With dead ends: 192 [2024-11-28 04:07:30,053 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:07:30,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:07:30,054 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 5 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:30,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 157 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:07:30,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:07:30,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:07:30,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:07:30,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:07:30,056 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 182 [2024-11-28 04:07:30,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:30,056 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:07:30,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:07:30,057 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:07:30,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:07:30,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-28 04:07:30,060 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-28 04:07:30,060 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-28 04:07:30,060 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-28 04:07:30,060 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-28 04:07:30,060 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-28 04:07:30,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:07:30,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:30,265 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:30,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:07:33,070 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:07:33,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:07:33 BoogieIcfgContainer [2024-11-28 04:07:33,095 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:07:33,096 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:07:33,096 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:07:33,096 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:07:33,097 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:06:54" (3/4) ... [2024-11-28 04:07:33,100 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:07:33,106 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 04:07:33,106 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-28 04:07:33,111 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-28 04:07:33,111 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 04:07:33,111 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 04:07:33,112 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:07:33,112 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:07:33,219 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:07:33,219 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:07:33,220 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:07:33,220 INFO L158 Benchmark]: Toolchain (without parser) took 39679.69ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 131.0MB in the beginning and 244.3MB in the end (delta: -113.3MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2024-11-28 04:07:33,222 INFO L158 Benchmark]: CDTParser took 1.46ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:07:33,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.21ms. Allocated memory is still 167.8MB. Free memory was 130.7MB in the beginning and 119.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:07:33,224 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.65ms. Allocated memory is still 167.8MB. Free memory was 119.4MB in the beginning and 118.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:07:33,228 INFO L158 Benchmark]: Boogie Preprocessor took 52.79ms. Allocated memory is still 167.8MB. Free memory was 118.0MB in the beginning and 116.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:07:33,228 INFO L158 Benchmark]: RCFGBuilder took 603.35ms. Allocated memory is still 167.8MB. Free memory was 116.7MB in the beginning and 103.3MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:07:33,228 INFO L158 Benchmark]: TraceAbstraction took 38444.23ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 102.7MB in the beginning and 247.8MB in the end (delta: -145.1MB). Peak memory consumption was 142.8MB. Max. memory is 16.1GB. [2024-11-28 04:07:33,228 INFO L158 Benchmark]: Witness Printer took 123.67ms. Allocated memory is still 360.7MB. Free memory was 247.8MB in the beginning and 244.3MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:07:33,230 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.46ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.21ms. Allocated memory is still 167.8MB. Free memory was 130.7MB in the beginning and 119.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.65ms. Allocated memory is still 167.8MB. Free memory was 119.4MB in the beginning and 118.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.79ms. Allocated memory is still 167.8MB. Free memory was 118.0MB in the beginning and 116.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 603.35ms. Allocated memory is still 167.8MB. Free memory was 116.7MB in the beginning and 103.3MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 38444.23ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 102.7MB in the beginning and 247.8MB in the end (delta: -145.1MB). Peak memory consumption was 142.8MB. Max. memory is 16.1GB. * Witness Printer took 123.67ms. Allocated memory is still 360.7MB. Free memory was 247.8MB in the beginning and 244.3MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 35.5s, OverallIterations: 23, TraceHistogramMax: 14, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 17.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1816 SdHoareTripleChecker+Valid, 11.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1810 mSDsluCounter, 6182 SdHoareTripleChecker+Invalid, 10.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5214 mSDsCounter, 248 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4732 IncrementalHoareTripleChecker+Invalid, 4980 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 248 mSolverCounterUnsat, 968 mSDtfsCounter, 4732 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2676 GetRequests, 2028 SyntacticMatches, 58 SemanticMatches, 590 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6503 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=525occurred in iteration=18, InterpolantAutomatonStates: 469, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 23 MinimizatonAttempts, 874 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 11.8s InterpolantComputationTime, 3102 NumberOfCodeBlocks, 3102 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 4029 ConstructedInterpolants, 0 QuantifiedInterpolants, 7267 SizeOfPredicates, 106 NumberOfNonLiveVariables, 2941 ConjunctsInSsa, 139 ConjunctsInUnsatCore, 48 InterpolantComputations, 12 PerfectInterpolantSequences, 9344/9911 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((4 <= counter) && (counter <= 2147483646)) || (counter == 0)) || (((counter <= 2147483646) && (x <= y)) && (3 <= counter))) - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (((((counter == 3) || (counter == 5)) || (counter == 4)) || ((y != x) && (counter == 1))) || (counter == 2)) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((((counter <= 5) && (3 <= counter)) || ((6 <= counter) && (counter <= 2147483645))) || (((2 <= counter) && (counter <= 5)) && (x <= y))) RESULT: Ultimate proved your program to be correct! [2024-11-28 04:07:33,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fa3941-020c-40b9-bc54-a466be430119/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE