./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound5.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_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1 --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 1aca3c96522e618238f11f200c96e0ec490e756d4e04895bd2a51f9a4ff85af1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:04:48,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:04:48,161 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 12:04:48,167 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:04:48,167 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:04:48,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:04:48,188 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:04:48,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:04:48,189 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:04:48,189 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:04:48,189 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:04:48,189 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:04:48,189 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:04:48,189 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:04:48,189 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:04:48,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:04:48,190 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:04:48,190 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:04:48,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:04:48,190 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:04:48,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:04:48,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:04:48,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:04:48,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:04:48,190 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 12:04:48,190 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 12:04:48,190 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:04:48,190 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:04:48,190 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:04:48,191 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:04:48,191 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:04:48,191 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:04:48,191 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:04:48,191 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:04:48,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:04:48,191 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:04:48,191 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:04:48,191 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:04:48,191 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:04:48,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:04:48,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:04:48,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:04:48,192 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:04:48,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:04:48,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:04:48,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:04:48,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:04:48,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:04:48,192 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:04:48,192 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:04:48,192 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_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1 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 -> 1aca3c96522e618238f11f200c96e0ec490e756d4e04895bd2a51f9a4ff85af1 [2024-12-02 12:04:48,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:04:48,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:04:48,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:04:48,419 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:04:48,419 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:04:48,420 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound5.c [2024-12-02 12:04:51,066 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/data/12dd1cb40/6dd78ebf988a49ffa6c2110d7d975cb8/FLAG4b7754421 [2024-12-02 12:04:51,269 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:04:51,270 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound5.c [2024-12-02 12:04:51,275 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/data/12dd1cb40/6dd78ebf988a49ffa6c2110d7d975cb8/FLAG4b7754421 [2024-12-02 12:04:51,650 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/data/12dd1cb40/6dd78ebf988a49ffa6c2110d7d975cb8 [2024-12-02 12:04:51,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:04:51,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:04:51,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:04:51,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:04:51,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:04:51,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ee8e94c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51, skipping insertion in model container [2024-12-02 12:04:51,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,671 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:04:51,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:04:51,826 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:04:51,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:04:51,858 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:04:51,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51 WrapperNode [2024-12-02 12:04:51,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:04:51,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:04:51,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:04:51,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:04:51,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,870 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,888 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 136 [2024-12-02 12:04:51,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:04:51,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:04:51,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:04:51,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:04:51,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,899 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,910 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 12:04:51,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,913 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,914 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,919 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,921 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:04:51,921 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:04:51,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:04:51,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:04:51,922 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:04:51,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:51,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:04:51,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:04:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:04:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:04:51,979 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:04:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:04:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:04:51,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:04:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 12:04:51,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 12:04:52,033 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:04:52,035 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:04:52,431 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-12-02 12:04:52,431 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:04:52,440 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:04:52,441 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-12-02 12:04:52,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:04:52 BoogieIcfgContainer [2024-12-02 12:04:52,441 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:04:52,443 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:04:52,443 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:04:52,446 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:04:52,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:04:51" (1/3) ... [2024-12-02 12:04:52,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c32839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:04:52, skipping insertion in model container [2024-12-02 12:04:52,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51" (2/3) ... [2024-12-02 12:04:52,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c32839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:04:52, skipping insertion in model container [2024-12-02 12:04:52,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:04:52" (3/3) ... [2024-12-02 12:04:52,448 INFO L128 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound5.c [2024-12-02 12:04:52,461 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:04:52,462 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd3-ll_valuebound5.c that has 3 procedures, 131 locations, 1 initial locations, 3 loop locations, and 50 error locations. [2024-12-02 12:04:52,515 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:04:52,527 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;@43dd0ec0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:04:52,528 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-12-02 12:04:52,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 69 states have (on average 1.8840579710144927) internal successors, (130), 119 states have internal predecessors, (130), 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) [2024-12-02 12:04:52,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-02 12:04:52,538 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:52,538 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:04:52,539 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:04:52,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:52,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1196419522, now seen corresponding path program 1 times [2024-12-02 12:04:52,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:52,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227365563] [2024-12-02 12:04:52,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:52,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:52,668 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 12:04:52,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:52,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227365563] [2024-12-02 12:04:52,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227365563] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:04:52,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794788141] [2024-12-02 12:04:52,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:52,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:52,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:52,673 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:52,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:04:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:52,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 12:04:52,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:52,735 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 12:04:52,735 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:52,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794788141] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:52,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:04:52,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 12:04:52,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360285066] [2024-12-02 12:04:52,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:52,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:04:52,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:52,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:04:52,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:04:52,757 INFO L87 Difference]: Start difference. First operand has 131 states, 69 states have (on average 1.8840579710144927) internal successors, (130), 119 states have internal predecessors, (130), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2024-12-02 12:04:52,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:52,787 INFO L93 Difference]: Finished difference Result 258 states and 300 transitions. [2024-12-02 12:04:52,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:04:52,788 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 26 [2024-12-02 12:04:52,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:52,794 INFO L225 Difference]: With dead ends: 258 [2024-12-02 12:04:52,794 INFO L226 Difference]: Without dead ends: 124 [2024-12-02 12:04:52,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:04:52,799 INFO L435 NwaCegarLoop]: 139 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, 139 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 [2024-12-02 12:04:52,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:04:52,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-12-02 12:04:52,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-12-02 12:04:52,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 64 states have (on average 1.8125) internal successors, (116), 113 states have internal predecessors, (116), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 12:04:52,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 132 transitions. [2024-12-02 12:04:52,833 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 132 transitions. Word has length 26 [2024-12-02 12:04:52,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:52,834 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 132 transitions. [2024-12-02 12:04:52,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2024-12-02 12:04:52,834 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 132 transitions. [2024-12-02 12:04:52,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-02 12:04:52,835 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:52,835 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:04:52,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:04:53,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 12:04:53,036 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:04:53,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:53,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1152528766, now seen corresponding path program 1 times [2024-12-02 12:04:53,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:53,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618545409] [2024-12-02 12:04:53,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:53,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:53,209 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 12:04:53,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:53,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618545409] [2024-12-02 12:04:53,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618545409] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:53,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:53,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:04:53,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602037472] [2024-12-02 12:04:53,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:53,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:04:53,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:53,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:04:53,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:04:53,211 INFO L87 Difference]: Start difference. First operand 124 states and 132 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 12:04:53,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:53,501 INFO L93 Difference]: Finished difference Result 210 states and 230 transitions. [2024-12-02 12:04:53,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:04:53,502 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2024-12-02 12:04:53,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:53,503 INFO L225 Difference]: With dead ends: 210 [2024-12-02 12:04:53,503 INFO L226 Difference]: Without dead ends: 182 [2024-12-02 12:04:53,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:04:53,505 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 200 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:53,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 317 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:04:53,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-12-02 12:04:53,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 125. [2024-12-02 12:04:53,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 65 states have (on average 1.8) internal successors, (117), 114 states have internal predecessors, (117), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 12:04:53,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 133 transitions. [2024-12-02 12:04:53,518 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 133 transitions. Word has length 26 [2024-12-02 12:04:53,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:53,518 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 133 transitions. [2024-12-02 12:04:53,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 12:04:53,518 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 133 transitions. [2024-12-02 12:04:53,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-02 12:04:53,519 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:53,519 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:04:53,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:04:53,519 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:04:53,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:53,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1368652243, now seen corresponding path program 1 times [2024-12-02 12:04:53,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:53,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000898012] [2024-12-02 12:04:53,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:53,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:04:53,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [980308320] [2024-12-02 12:04:53,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:53,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:53,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:53,542 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:53,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:04:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:53,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:04:53,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:53,591 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:04:53,591 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:53,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:53,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000898012] [2024-12-02 12:04:53,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:04:53,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980308320] [2024-12-02 12:04:53,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980308320] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:53,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:53,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:04:53,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568142376] [2024-12-02 12:04:53,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:53,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:04:53,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:53,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:04:53,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:04:53,593 INFO L87 Difference]: Start difference. First operand 125 states and 133 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 12:04:53,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:53,662 INFO L93 Difference]: Finished difference Result 194 states and 210 transitions. [2024-12-02 12:04:53,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:04:53,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2024-12-02 12:04:53,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:53,664 INFO L225 Difference]: With dead ends: 194 [2024-12-02 12:04:53,665 INFO L226 Difference]: Without dead ends: 192 [2024-12-02 12:04:53,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:04:53,666 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 63 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:53,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 235 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:04:53,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-12-02 12:04:53,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 159. [2024-12-02 12:04:53,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 95 states have (on average 1.8421052631578947) internal successors, (175), 144 states have internal predecessors, (175), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:04:53,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 199 transitions. [2024-12-02 12:04:53,679 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 199 transitions. Word has length 27 [2024-12-02 12:04:53,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:53,679 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 199 transitions. [2024-12-02 12:04:53,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 12:04:53,679 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 199 transitions. [2024-12-02 12:04:53,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-02 12:04:53,680 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:53,680 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:04:53,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 12:04:53,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:53,880 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:04:53,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:53,881 INFO L85 PathProgramCache]: Analyzing trace with hash -521453033, now seen corresponding path program 1 times [2024-12-02 12:04:53,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:53,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521397850] [2024-12-02 12:04:53,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:53,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:04:53,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [542432373] [2024-12-02 12:04:53,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:53,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:53,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:53,900 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:53,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:04:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:53,940 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:04:53,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:53,955 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:04:53,955 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:53,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:53,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521397850] [2024-12-02 12:04:53,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:04:53,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542432373] [2024-12-02 12:04:53,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542432373] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:53,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:53,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:04:53,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752354635] [2024-12-02 12:04:53,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:53,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:04:53,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:53,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:04:53,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:04:53,957 INFO L87 Difference]: Start difference. First operand 159 states and 199 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-12-02 12:04:54,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:54,047 INFO L93 Difference]: Finished difference Result 190 states and 208 transitions. [2024-12-02 12:04:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:04:54,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 28 [2024-12-02 12:04:54,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:54,049 INFO L225 Difference]: With dead ends: 190 [2024-12-02 12:04:54,049 INFO L226 Difference]: Without dead ends: 186 [2024-12-02 12:04:54,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:04:54,050 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 56 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:54,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 217 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:04:54,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-12-02 12:04:54,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 162. [2024-12-02 12:04:54,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 98 states have (on average 1.7959183673469388) internal successors, (176), 147 states have internal predecessors, (176), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:04:54,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 200 transitions. [2024-12-02 12:04:54,063 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 200 transitions. Word has length 28 [2024-12-02 12:04:54,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:54,064 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 200 transitions. [2024-12-02 12:04:54,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-12-02 12:04:54,064 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 200 transitions. [2024-12-02 12:04:54,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-02 12:04:54,064 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:54,065 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:04:54,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 12:04:54,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:54,265 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:04:54,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:54,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1014815381, now seen corresponding path program 1 times [2024-12-02 12:04:54,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:54,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751781735] [2024-12-02 12:04:54,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:54,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:04:54,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1949274263] [2024-12-02 12:04:54,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:54,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:54,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:54,283 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:54,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 12:04:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:54,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 12:04:54,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:54,385 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:04:54,385 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:54,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:54,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751781735] [2024-12-02 12:04:54,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:04:54,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949274263] [2024-12-02 12:04:54,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949274263] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:54,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:54,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:04:54,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318564500] [2024-12-02 12:04:54,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:54,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:04:54,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:54,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:04:54,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:04:54,387 INFO L87 Difference]: Start difference. First operand 162 states and 200 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 12:04:54,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:54,579 INFO L93 Difference]: Finished difference Result 181 states and 200 transitions. [2024-12-02 12:04:54,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:04:54,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2024-12-02 12:04:54,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:54,581 INFO L225 Difference]: With dead ends: 181 [2024-12-02 12:04:54,581 INFO L226 Difference]: Without dead ends: 180 [2024-12-02 12:04:54,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:04:54,582 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 136 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:54,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 196 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:04:54,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-12-02 12:04:54,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 162. [2024-12-02 12:04:54,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 98 states have (on average 1.7857142857142858) internal successors, (175), 147 states have internal predecessors, (175), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:04:54,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 199 transitions. [2024-12-02 12:04:54,595 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 199 transitions. Word has length 29 [2024-12-02 12:04:54,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:54,595 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 199 transitions. [2024-12-02 12:04:54,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 12:04:54,596 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 199 transitions. [2024-12-02 12:04:54,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 12:04:54,596 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:54,596 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] [2024-12-02 12:04:54,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 12:04:54,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:54,797 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:04:54,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:54,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1394813657, now seen corresponding path program 1 times [2024-12-02 12:04:54,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:54,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450138418] [2024-12-02 12:04:54,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:54,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:54,876 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:04:54,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:54,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450138418] [2024-12-02 12:04:54,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450138418] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:54,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:54,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:04:54,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903508855] [2024-12-02 12:04:54,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:54,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:04:54,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:54,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:04:54,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:04:54,878 INFO L87 Difference]: Start difference. First operand 162 states and 199 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2024-12-02 12:04:55,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:55,283 INFO L93 Difference]: Finished difference Result 185 states and 203 transitions. [2024-12-02 12:04:55,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:04:55,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 30 [2024-12-02 12:04:55,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:55,284 INFO L225 Difference]: With dead ends: 185 [2024-12-02 12:04:55,284 INFO L226 Difference]: Without dead ends: 184 [2024-12-02 12:04:55,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:04:55,285 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 52 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:55,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 409 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:04:55,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-12-02 12:04:55,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 163. [2024-12-02 12:04:55,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 99 states have (on average 1.7777777777777777) internal successors, (176), 148 states have internal predecessors, (176), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:04:55,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 200 transitions. [2024-12-02 12:04:55,296 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 200 transitions. Word has length 30 [2024-12-02 12:04:55,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:55,297 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 200 transitions. [2024-12-02 12:04:55,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2024-12-02 12:04:55,297 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 200 transitions. [2024-12-02 12:04:55,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 12:04:55,297 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:55,297 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] [2024-12-02 12:04:55,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:04:55,298 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:04:55,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:55,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1394505819, now seen corresponding path program 1 times [2024-12-02 12:04:55,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:55,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363728441] [2024-12-02 12:04:55,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:55,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:04:55,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [686994581] [2024-12-02 12:04:55,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:55,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:55,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:55,314 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:55,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 12:04:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:55,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 12:04:55,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:55,406 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:04:55,406 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:55,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:55,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363728441] [2024-12-02 12:04:55,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:04:55,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686994581] [2024-12-02 12:04:55,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686994581] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:55,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:55,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:04:55,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381983042] [2024-12-02 12:04:55,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:55,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:04:55,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:55,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:04:55,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:04:55,408 INFO L87 Difference]: Start difference. First operand 163 states and 200 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-12-02 12:04:55,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:55,553 INFO L93 Difference]: Finished difference Result 182 states and 200 transitions. [2024-12-02 12:04:55,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:04:55,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 30 [2024-12-02 12:04:55,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:55,555 INFO L225 Difference]: With dead ends: 182 [2024-12-02 12:04:55,555 INFO L226 Difference]: Without dead ends: 181 [2024-12-02 12:04:55,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:04:55,556 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 135 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:55,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 196 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:04:55,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-12-02 12:04:55,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 163. [2024-12-02 12:04:55,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 99 states have (on average 1.7676767676767677) internal successors, (175), 148 states have internal predecessors, (175), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:04:55,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 199 transitions. [2024-12-02 12:04:55,566 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 199 transitions. Word has length 30 [2024-12-02 12:04:55,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:55,566 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 199 transitions. [2024-12-02 12:04:55,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-12-02 12:04:55,567 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 199 transitions. [2024-12-02 12:04:55,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 12:04:55,567 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:55,567 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] [2024-12-02 12:04:55,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 12:04:55,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:55,768 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:04:55,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:55,768 INFO L85 PathProgramCache]: Analyzing trace with hash 289550559, now seen corresponding path program 1 times [2024-12-02 12:04:55,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:55,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008948154] [2024-12-02 12:04:55,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:55,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:04:55,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655519143] [2024-12-02 12:04:55,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:55,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:55,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:55,781 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:55,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 12:04:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:55,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 12:04:55,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:55,879 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:04:55,880 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:55,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:55,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008948154] [2024-12-02 12:04:55,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:04:55,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655519143] [2024-12-02 12:04:55,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655519143] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:55,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:55,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:04:55,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436307767] [2024-12-02 12:04:55,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:55,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:04:55,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:55,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:04:55,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:04:55,881 INFO L87 Difference]: Start difference. First operand 163 states and 199 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-12-02 12:04:56,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:56,091 INFO L93 Difference]: Finished difference Result 183 states and 201 transitions. [2024-12-02 12:04:56,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:04:56,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 31 [2024-12-02 12:04:56,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:56,093 INFO L225 Difference]: With dead ends: 183 [2024-12-02 12:04:56,093 INFO L226 Difference]: Without dead ends: 182 [2024-12-02 12:04:56,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:04:56,093 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 52 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:56,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 285 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:04:56,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-12-02 12:04:56,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 164. [2024-12-02 12:04:56,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 100 states have (on average 1.76) internal successors, (176), 149 states have internal predecessors, (176), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:04:56,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 200 transitions. [2024-12-02 12:04:56,103 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 200 transitions. Word has length 31 [2024-12-02 12:04:56,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:56,103 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 200 transitions. [2024-12-02 12:04:56,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-12-02 12:04:56,103 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 200 transitions. [2024-12-02 12:04:56,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 12:04:56,104 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:56,104 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] [2024-12-02 12:04:56,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-12-02 12:04:56,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:56,304 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:04:56,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:56,305 INFO L85 PathProgramCache]: Analyzing trace with hash 280007511, now seen corresponding path program 1 times [2024-12-02 12:04:56,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:56,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966279223] [2024-12-02 12:04:56,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:56,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:04:56,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [505705580] [2024-12-02 12:04:56,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:56,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:56,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:56,317 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:56,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 12:04:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:56,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 12:04:56,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:56,376 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:04:56,376 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:56,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:56,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966279223] [2024-12-02 12:04:56,376 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:04:56,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505705580] [2024-12-02 12:04:56,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505705580] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:56,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:56,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:04:56,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901328128] [2024-12-02 12:04:56,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:56,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:04:56,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:56,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:04:56,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:04:56,377 INFO L87 Difference]: Start difference. First operand 164 states and 200 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-12-02 12:04:56,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:56,538 INFO L93 Difference]: Finished difference Result 190 states and 206 transitions. [2024-12-02 12:04:56,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:04:56,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 31 [2024-12-02 12:04:56,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:56,539 INFO L225 Difference]: With dead ends: 190 [2024-12-02 12:04:56,539 INFO L226 Difference]: Without dead ends: 189 [2024-12-02 12:04:56,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:04:56,540 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 55 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:56,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 316 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:04:56,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-12-02 12:04:56,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 164. [2024-12-02 12:04:56,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 100 states have (on average 1.75) internal successors, (175), 149 states have internal predecessors, (175), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:04:56,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 199 transitions. [2024-12-02 12:04:56,549 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 199 transitions. Word has length 31 [2024-12-02 12:04:56,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:56,549 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 199 transitions. [2024-12-02 12:04:56,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-12-02 12:04:56,549 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 199 transitions. [2024-12-02 12:04:56,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-12-02 12:04:56,550 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:56,550 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] [2024-12-02 12:04:56,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 12:04:56,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:56,751 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:04:56,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:56,751 INFO L85 PathProgramCache]: Analyzing trace with hash 386132891, now seen corresponding path program 1 times [2024-12-02 12:04:56,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:56,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445832466] [2024-12-02 12:04:56,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:56,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:04:56,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [809244635] [2024-12-02 12:04:56,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:56,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:56,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:56,760 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:56,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 12:04:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:56,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:04:56,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:56,804 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:04:56,804 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:56,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:56,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445832466] [2024-12-02 12:04:56,805 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:04:56,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809244635] [2024-12-02 12:04:56,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809244635] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:56,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:56,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:04:56,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107547109] [2024-12-02 12:04:56,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:56,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:04:56,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:56,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:04:56,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:04:56,806 INFO L87 Difference]: Start difference. First operand 164 states and 199 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-12-02 12:04:56,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:56,898 INFO L93 Difference]: Finished difference Result 274 states and 350 transitions. [2024-12-02 12:04:56,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:04:56,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 32 [2024-12-02 12:04:56,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:56,900 INFO L225 Difference]: With dead ends: 274 [2024-12-02 12:04:56,901 INFO L226 Difference]: Without dead ends: 268 [2024-12-02 12:04:56,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:04:56,901 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 55 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:56,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 212 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:04:56,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-12-02 12:04:56,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 236. [2024-12-02 12:04:56,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 164 states have (on average 1.7195121951219512) internal successors, (282), 213 states have internal predecessors, (282), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 12:04:56,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 322 transitions. [2024-12-02 12:04:56,916 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 322 transitions. Word has length 32 [2024-12-02 12:04:56,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:56,916 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 322 transitions. [2024-12-02 12:04:56,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-12-02 12:04:56,916 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 322 transitions. [2024-12-02 12:04:56,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-12-02 12:04:56,917 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:56,917 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] [2024-12-02 12:04:56,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 12:04:57,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 12:04:57,117 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:04:57,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:57,118 INFO L85 PathProgramCache]: Analyzing trace with hash 90298333, now seen corresponding path program 1 times [2024-12-02 12:04:57,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:57,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685029447] [2024-12-02 12:04:57,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:57,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:04:57,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [457242074] [2024-12-02 12:04:57,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:57,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:57,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:57,132 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:57,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 12:04:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:57,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 12:04:57,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:57,280 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:04:57,280 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:57,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:57,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685029447] [2024-12-02 12:04:57,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:04:57,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457242074] [2024-12-02 12:04:57,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457242074] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:57,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:57,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:04:57,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136823016] [2024-12-02 12:04:57,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:57,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:04:57,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:57,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:04:57,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:04:57,281 INFO L87 Difference]: Start difference. First operand 236 states and 322 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-12-02 12:04:57,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:57,457 INFO L93 Difference]: Finished difference Result 261 states and 326 transitions. [2024-12-02 12:04:57,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:04:57,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 32 [2024-12-02 12:04:57,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:57,459 INFO L225 Difference]: With dead ends: 261 [2024-12-02 12:04:57,459 INFO L226 Difference]: Without dead ends: 260 [2024-12-02 12:04:57,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:04:57,460 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 98 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:57,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 239 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:04:57,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-12-02 12:04:57,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 236. [2024-12-02 12:04:57,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 164 states have (on average 1.7073170731707317) internal successors, (280), 213 states have internal predecessors, (280), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 12:04:57,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 320 transitions. [2024-12-02 12:04:57,476 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 320 transitions. Word has length 32 [2024-12-02 12:04:57,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:57,476 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 320 transitions. [2024-12-02 12:04:57,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-12-02 12:04:57,477 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 320 transitions. [2024-12-02 12:04:57,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-12-02 12:04:57,477 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:57,477 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] [2024-12-02 12:04:57,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 12:04:57,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:57,678 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:04:57,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:57,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1706525789, now seen corresponding path program 1 times [2024-12-02 12:04:57,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:57,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928983554] [2024-12-02 12:04:57,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:57,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:57,745 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:04:57,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:57,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928983554] [2024-12-02 12:04:57,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928983554] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:57,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:57,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:04:57,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60468457] [2024-12-02 12:04:57,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:57,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:04:57,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:57,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:04:57,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:04:57,747 INFO L87 Difference]: Start difference. First operand 236 states and 320 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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) [2024-12-02 12:04:57,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:57,857 INFO L93 Difference]: Finished difference Result 265 states and 330 transitions. [2024-12-02 12:04:57,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:04:57,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 34 [2024-12-02 12:04:57,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:57,859 INFO L225 Difference]: With dead ends: 265 [2024-12-02 12:04:57,859 INFO L226 Difference]: Without dead ends: 264 [2024-12-02 12:04:57,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:04:57,860 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 55 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:57,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 349 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:04:57,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-12-02 12:04:57,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 241. [2024-12-02 12:04:57,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 169 states have (on average 1.698224852071006) internal successors, (287), 218 states have internal predecessors, (287), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 12:04:57,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 327 transitions. [2024-12-02 12:04:57,875 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 327 transitions. Word has length 34 [2024-12-02 12:04:57,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:57,876 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 327 transitions. [2024-12-02 12:04:57,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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) [2024-12-02 12:04:57,876 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 327 transitions. [2024-12-02 12:04:57,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-12-02 12:04:57,876 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:57,877 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] [2024-12-02 12:04:57,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:04:57,877 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:04:57,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:57,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1362692067, now seen corresponding path program 1 times [2024-12-02 12:04:57,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:57,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579395388] [2024-12-02 12:04:57,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:57,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:04:57,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1865825852] [2024-12-02 12:04:57,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:57,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:57,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:57,891 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:57,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 12:04:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:57,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 12:04:57,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:57,983 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:04:57,983 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:57,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:57,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579395388] [2024-12-02 12:04:57,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:04:57,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865825852] [2024-12-02 12:04:57,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865825852] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:57,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:57,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:04:57,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670449869] [2024-12-02 12:04:57,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:57,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:04:57,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:57,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:04:57,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:04:57,985 INFO L87 Difference]: Start difference. First operand 241 states and 327 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-12-02 12:04:58,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:58,164 INFO L93 Difference]: Finished difference Result 282 states and 338 transitions. [2024-12-02 12:04:58,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:04:58,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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 35 [2024-12-02 12:04:58,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:58,166 INFO L225 Difference]: With dead ends: 282 [2024-12-02 12:04:58,166 INFO L226 Difference]: Without dead ends: 281 [2024-12-02 12:04:58,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:04:58,167 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 149 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:58,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 346 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:04:58,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-12-02 12:04:58,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 243. [2024-12-02 12:04:58,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 171 states have (on average 1.6900584795321638) internal successors, (289), 220 states have internal predecessors, (289), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 12:04:58,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 329 transitions. [2024-12-02 12:04:58,186 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 329 transitions. Word has length 35 [2024-12-02 12:04:58,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:58,186 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 329 transitions. [2024-12-02 12:04:58,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-12-02 12:04:58,186 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 329 transitions. [2024-12-02 12:04:58,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-02 12:04:58,187 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:58,187 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:04:58,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 12:04:58,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 12:04:58,387 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:04:58,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:58,388 INFO L85 PathProgramCache]: Analyzing trace with hash -417947209, now seen corresponding path program 1 times [2024-12-02 12:04:58,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:58,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750880884] [2024-12-02 12:04:58,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:58,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 12:04:58,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:58,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750880884] [2024-12-02 12:04:58,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750880884] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:04:58,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620778312] [2024-12-02 12:04:58,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:58,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:58,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:58,510 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:58,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 12:04:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:58,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 12:04:58,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:58,599 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:04:58,599 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:04:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:04:58,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620778312] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:04:58,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:04:58,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 15 [2024-12-02 12:04:58,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302902436] [2024-12-02 12:04:58,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:04:58,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 12:04:58,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:58,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 12:04:58,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:04:58,734 INFO L87 Difference]: Start difference. First operand 243 states and 329 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 14 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:05:00,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:00,128 INFO L93 Difference]: Finished difference Result 867 states and 1152 transitions. [2024-12-02 12:05:00,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-12-02 12:05:00,129 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 14 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 37 [2024-12-02 12:05:00,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:00,134 INFO L225 Difference]: With dead ends: 867 [2024-12-02 12:05:00,134 INFO L226 Difference]: Without dead ends: 839 [2024-12-02 12:05:00,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 12:05:00,135 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 1810 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:00,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 1297 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 12:05:00,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2024-12-02 12:05:00,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 246. [2024-12-02 12:05:00,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 174 states have (on average 1.6896551724137931) internal successors, (294), 223 states have internal predecessors, (294), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 12:05:00,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 334 transitions. [2024-12-02 12:05:00,154 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 334 transitions. Word has length 37 [2024-12-02 12:05:00,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:00,154 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 334 transitions. [2024-12-02 12:05:00,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 14 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:05:00,154 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 334 transitions. [2024-12-02 12:05:00,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-02 12:05:00,155 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:00,155 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-12-02 12:05:00,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 12:05:00,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 12:05:00,356 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:00,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:00,356 INFO L85 PathProgramCache]: Analyzing trace with hash -71462726, now seen corresponding path program 1 times [2024-12-02 12:05:00,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:00,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478543231] [2024-12-02 12:05:00,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:00,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:05:00,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [875406688] [2024-12-02 12:05:00,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:00,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:00,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:00,368 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:00,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 12:05:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:00,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 12:05:00,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:00,535 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 12:05:00,535 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:00,776 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 12:05:00,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:00,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478543231] [2024-12-02 12:05:00,777 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:05:00,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875406688] [2024-12-02 12:05:00,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875406688] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:05:00,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:05:00,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2024-12-02 12:05:00,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405834705] [2024-12-02 12:05:00,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:05:00,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:05:00,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:00,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:05:00,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:05:00,778 INFO L87 Difference]: Start difference. First operand 246 states and 334 transitions. Second operand has 12 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 12:05:01,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:01,430 INFO L93 Difference]: Finished difference Result 431 states and 559 transitions. [2024-12-02 12:05:01,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:05:01,431 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 38 [2024-12-02 12:05:01,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:01,433 INFO L225 Difference]: With dead ends: 431 [2024-12-02 12:05:01,433 INFO L226 Difference]: Without dead ends: 428 [2024-12-02 12:05:01,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2024-12-02 12:05:01,434 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 541 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:01,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 955 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:05:01,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-12-02 12:05:01,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 258. [2024-12-02 12:05:01,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 186 states have (on average 1.6612903225806452) internal successors, (309), 234 states have internal predecessors, (309), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 12:05:01,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 351 transitions. [2024-12-02 12:05:01,465 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 351 transitions. Word has length 38 [2024-12-02 12:05:01,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:01,465 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 351 transitions. [2024-12-02 12:05:01,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 12:05:01,466 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 351 transitions. [2024-12-02 12:05:01,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-02 12:05:01,466 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:01,466 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-12-02 12:05:01,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-12-02 12:05:01,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:01,667 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:01,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:01,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2079622866, now seen corresponding path program 1 times [2024-12-02 12:05:01,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:01,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959046355] [2024-12-02 12:05:01,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:01,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:05:01,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [387998076] [2024-12-02 12:05:01,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:01,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:01,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:01,679 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:01,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 12:05:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:01,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 12:05:01,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:01,843 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 12:05:01,843 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:02,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:02,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959046355] [2024-12-02 12:05:02,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:05:02,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387998076] [2024-12-02 12:05:02,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387998076] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:02,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:05:02,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-12-02 12:05:02,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412187033] [2024-12-02 12:05:02,129 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:05:02,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:05:02,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:02,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:05:02,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:05:02,130 INFO L87 Difference]: Start difference. First operand 258 states and 351 transitions. Second operand has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 12:05:02,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:02,396 INFO L93 Difference]: Finished difference Result 410 states and 538 transitions. [2024-12-02 12:05:02,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:05:02,397 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-12-02 12:05:02,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:02,399 INFO L225 Difference]: With dead ends: 410 [2024-12-02 12:05:02,399 INFO L226 Difference]: Without dead ends: 407 [2024-12-02 12:05:02,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:05:02,400 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 541 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:02,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 423 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:05:02,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-12-02 12:05:02,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 342. [2024-12-02 12:05:02,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 261 states have (on average 1.7049808429118773) internal successors, (445), 309 states have internal predecessors, (445), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 12:05:02,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 505 transitions. [2024-12-02 12:05:02,436 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 505 transitions. Word has length 39 [2024-12-02 12:05:02,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:02,436 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 505 transitions. [2024-12-02 12:05:02,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 12:05:02,436 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 505 transitions. [2024-12-02 12:05:02,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 12:05:02,436 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:02,437 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-12-02 12:05:02,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 12:05:02,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 12:05:02,637 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:02,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:02,637 INFO L85 PathProgramCache]: Analyzing trace with hash 43799484, now seen corresponding path program 1 times [2024-12-02 12:05:02,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:02,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911681601] [2024-12-02 12:05:02,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:02,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:05:02,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2062792060] [2024-12-02 12:05:02,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:02,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:02,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:02,647 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:02,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 12:05:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:02,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 12:05:02,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 12:05:02,840 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:03,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:03,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911681601] [2024-12-02 12:05:03,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:05:03,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062792060] [2024-12-02 12:05:03,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062792060] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:03,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:05:03,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-12-02 12:05:03,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030518687] [2024-12-02 12:05:03,031 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:05:03,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:05:03,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:03,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:05:03,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:05:03,032 INFO L87 Difference]: Start difference. First operand 342 states and 505 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 12:05:03,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:03,625 INFO L93 Difference]: Finished difference Result 463 states and 649 transitions. [2024-12-02 12:05:03,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:05:03,626 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-12-02 12:05:03,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:03,628 INFO L225 Difference]: With dead ends: 463 [2024-12-02 12:05:03,628 INFO L226 Difference]: Without dead ends: 462 [2024-12-02 12:05:03,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:05:03,628 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 313 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:03,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 607 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:05:03,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-12-02 12:05:03,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 416. [2024-12-02 12:05:03,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 326 states have (on average 1.7239263803680982) internal successors, (562), 374 states have internal predecessors, (562), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-12-02 12:05:03,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 640 transitions. [2024-12-02 12:05:03,674 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 640 transitions. Word has length 40 [2024-12-02 12:05:03,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:03,674 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 640 transitions. [2024-12-02 12:05:03,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 12:05:03,674 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 640 transitions. [2024-12-02 12:05:03,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 12:05:03,675 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:03,675 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] [2024-12-02 12:05:03,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 12:05:03,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 12:05:03,876 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:03,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:03,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1358091922, now seen corresponding path program 1 times [2024-12-02 12:05:03,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:03,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841844156] [2024-12-02 12:05:03,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:03,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:03,945 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:05:03,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:03,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841844156] [2024-12-02 12:05:03,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841844156] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:03,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254642708] [2024-12-02 12:05:03,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:03,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:03,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:03,948 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:03,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 12:05:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:03,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 12:05:03,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:04,014 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:05:04,014 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:04,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254642708] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:04,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:05:04,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-12-02 12:05:04,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392249779] [2024-12-02 12:05:04,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:04,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:05:04,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:04,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:05:04,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:05:04,015 INFO L87 Difference]: Start difference. First operand 416 states and 640 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-12-02 12:05:04,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:04,203 INFO L93 Difference]: Finished difference Result 600 states and 841 transitions. [2024-12-02 12:05:04,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:05:04,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 41 [2024-12-02 12:05:04,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:04,205 INFO L225 Difference]: With dead ends: 600 [2024-12-02 12:05:04,205 INFO L226 Difference]: Without dead ends: 437 [2024-12-02 12:05:04,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:05:04,206 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 154 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:04,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 531 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:05:04,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-12-02 12:05:04,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 403. [2024-12-02 12:05:04,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 314 states have (on average 1.7229299363057324) internal successors, (541), 361 states have internal predecessors, (541), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-12-02 12:05:04,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 619 transitions. [2024-12-02 12:05:04,252 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 619 transitions. Word has length 41 [2024-12-02 12:05:04,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:04,252 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 619 transitions. [2024-12-02 12:05:04,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-12-02 12:05:04,253 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 619 transitions. [2024-12-02 12:05:04,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 12:05:04,253 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:04,253 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-12-02 12:05:04,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 12:05:04,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 12:05:04,454 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:04,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:04,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1357784084, now seen corresponding path program 1 times [2024-12-02 12:05:04,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:04,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549033326] [2024-12-02 12:05:04,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:04,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:05:04,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339351463] [2024-12-02 12:05:04,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:04,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:04,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:04,466 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:04,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 12:05:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:04,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 12:05:04,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:04,678 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 12:05:04,678 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:05,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:05,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549033326] [2024-12-02 12:05:05,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:05:05,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339351463] [2024-12-02 12:05:05,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339351463] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:05,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:05:05,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-12-02 12:05:05,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71285081] [2024-12-02 12:05:05,096 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:05:05,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:05:05,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:05,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:05:05,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:05:05,097 INFO L87 Difference]: Start difference. First operand 403 states and 619 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 12:05:05,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:05,636 INFO L93 Difference]: Finished difference Result 449 states and 624 transitions. [2024-12-02 12:05:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:05:05,637 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-12-02 12:05:05,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:05,638 INFO L225 Difference]: With dead ends: 449 [2024-12-02 12:05:05,638 INFO L226 Difference]: Without dead ends: 448 [2024-12-02 12:05:05,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:05:05,639 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 306 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:05,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 622 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:05:05,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-12-02 12:05:05,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 403. [2024-12-02 12:05:05,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 314 states have (on average 1.713375796178344) internal successors, (538), 361 states have internal predecessors, (538), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-12-02 12:05:05,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 616 transitions. [2024-12-02 12:05:05,683 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 616 transitions. Word has length 41 [2024-12-02 12:05:05,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:05,684 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 616 transitions. [2024-12-02 12:05:05,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 12:05:05,684 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 616 transitions. [2024-12-02 12:05:05,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-12-02 12:05:05,684 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:05,684 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:05:05,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-12-02 12:05:05,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:05,885 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:05,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:05,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1977530268, now seen corresponding path program 1 times [2024-12-02 12:05:05,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:05,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87964667] [2024-12-02 12:05:05,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:05,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:05:05,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444655213] [2024-12-02 12:05:05,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:05,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:05,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:05,897 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:05,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 12:05:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:05,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 12:05:05,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:05,960 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:05:05,960 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:05,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:05,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87964667] [2024-12-02 12:05:05,960 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:05:05,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444655213] [2024-12-02 12:05:05,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444655213] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:05,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:05,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:05:05,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72264497] [2024-12-02 12:05:05,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:05,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:05:05,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:05,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:05:05,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:05:05,961 INFO L87 Difference]: Start difference. First operand 403 states and 616 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-12-02 12:05:06,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:06,137 INFO L93 Difference]: Finished difference Result 430 states and 627 transitions. [2024-12-02 12:05:06,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:05:06,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 42 [2024-12-02 12:05:06,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:06,139 INFO L225 Difference]: With dead ends: 430 [2024-12-02 12:05:06,139 INFO L226 Difference]: Without dead ends: 429 [2024-12-02 12:05:06,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:05:06,140 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 55 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:06,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 291 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:05:06,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-12-02 12:05:06,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 403. [2024-12-02 12:05:06,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 314 states have (on average 1.7070063694267517) internal successors, (536), 361 states have internal predecessors, (536), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-12-02 12:05:06,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 614 transitions. [2024-12-02 12:05:06,167 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 614 transitions. Word has length 42 [2024-12-02 12:05:06,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:06,167 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 614 transitions. [2024-12-02 12:05:06,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-12-02 12:05:06,167 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 614 transitions. [2024-12-02 12:05:06,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-12-02 12:05:06,168 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:06,168 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-12-02 12:05:06,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-12-02 12:05:06,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:06,368 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:06,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:06,368 INFO L85 PathProgramCache]: Analyzing trace with hash -858366274, now seen corresponding path program 1 times [2024-12-02 12:05:06,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:06,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412836347] [2024-12-02 12:05:06,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:06,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:05:06,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2015490562] [2024-12-02 12:05:06,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:06,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:06,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:06,379 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:06,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-12-02 12:05:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:06,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 12:05:06,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:06,553 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 12:05:06,553 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:10,745 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 12:05:10,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:10,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412836347] [2024-12-02 12:05:10,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:05:10,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015490562] [2024-12-02 12:05:10,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015490562] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:05:10,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:05:10,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-12-02 12:05:10,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880163781] [2024-12-02 12:05:10,746 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:05:10,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 12:05:10,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:10,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 12:05:10,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=163, Unknown=1, NotChecked=0, Total=210 [2024-12-02 12:05:10,747 INFO L87 Difference]: Start difference. First operand 403 states and 614 transitions. Second operand has 15 states, 14 states have (on average 3.5) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 12:05:11,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:11,719 INFO L93 Difference]: Finished difference Result 456 states and 626 transitions. [2024-12-02 12:05:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:05:11,719 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2024-12-02 12:05:11,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:11,721 INFO L225 Difference]: With dead ends: 456 [2024-12-02 12:05:11,721 INFO L226 Difference]: Without dead ends: 451 [2024-12-02 12:05:11,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=71, Invalid=234, Unknown=1, NotChecked=0, Total=306 [2024-12-02 12:05:11,721 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 370 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:11,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 864 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:05:11,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-12-02 12:05:11,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 329. [2024-12-02 12:05:11,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 249 states have (on average 1.6546184738955823) internal successors, (412), 296 states have internal predecessors, (412), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 12:05:11,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 472 transitions. [2024-12-02 12:05:11,747 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 472 transitions. Word has length 42 [2024-12-02 12:05:11,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:11,747 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 472 transitions. [2024-12-02 12:05:11,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 12:05:11,748 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 472 transitions. [2024-12-02 12:05:11,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-12-02 12:05:11,748 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:11,748 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:05:11,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-12-02 12:05:11,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:11,949 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:11,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:11,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1173896067, now seen corresponding path program 1 times [2024-12-02 12:05:11,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:11,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241964011] [2024-12-02 12:05:11,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:11,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:05:11,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1050855699] [2024-12-02 12:05:11,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:11,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:11,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:11,959 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:11,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-12-02 12:05:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:11,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 12:05:11,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:12,037 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 12:05:12,037 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:12,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:12,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241964011] [2024-12-02 12:05:12,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:05:12,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050855699] [2024-12-02 12:05:12,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050855699] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:12,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:12,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:05:12,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582109510] [2024-12-02 12:05:12,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:12,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:05:12,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:12,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:05:12,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:05:12,038 INFO L87 Difference]: Start difference. First operand 329 states and 472 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-12-02 12:05:12,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:12,197 INFO L93 Difference]: Finished difference Result 357 states and 484 transitions. [2024-12-02 12:05:12,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:05:12,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 43 [2024-12-02 12:05:12,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:12,198 INFO L225 Difference]: With dead ends: 357 [2024-12-02 12:05:12,198 INFO L226 Difference]: Without dead ends: 356 [2024-12-02 12:05:12,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:05:12,200 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 90 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:12,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 229 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:05:12,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-12-02 12:05:12,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 329. [2024-12-02 12:05:12,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 249 states have (on average 1.6465863453815262) internal successors, (410), 296 states have internal predecessors, (410), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 12:05:12,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 470 transitions. [2024-12-02 12:05:12,221 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 470 transitions. Word has length 43 [2024-12-02 12:05:12,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:12,221 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 470 transitions. [2024-12-02 12:05:12,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-12-02 12:05:12,222 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 470 transitions. [2024-12-02 12:05:12,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-12-02 12:05:12,222 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:12,222 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:05:12,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-12-02 12:05:12,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:12,422 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:12,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:12,423 INFO L85 PathProgramCache]: Analyzing trace with hash -839550634, now seen corresponding path program 1 times [2024-12-02 12:05:12,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:12,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125381735] [2024-12-02 12:05:12,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:12,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:05:12,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [437658288] [2024-12-02 12:05:12,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:12,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:12,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:12,432 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:12,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-12-02 12:05:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:12,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 12:05:12,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:12,701 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 12:05:12,702 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:13,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:13,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125381735] [2024-12-02 12:05:13,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:05:13,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437658288] [2024-12-02 12:05:13,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437658288] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:13,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:05:13,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-12-02 12:05:13,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474705854] [2024-12-02 12:05:13,425 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:05:13,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 12:05:13,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:13,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 12:05:13,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-12-02 12:05:13,426 INFO L87 Difference]: Start difference. First operand 329 states and 470 transitions. Second operand has 11 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 12:05:13,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:13,994 INFO L93 Difference]: Finished difference Result 439 states and 603 transitions. [2024-12-02 12:05:13,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:05:13,995 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2024-12-02 12:05:13,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:13,996 INFO L225 Difference]: With dead ends: 439 [2024-12-02 12:05:13,996 INFO L226 Difference]: Without dead ends: 438 [2024-12-02 12:05:13,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2024-12-02 12:05:13,996 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 509 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:13,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 488 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:05:13,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-12-02 12:05:14,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 403. [2024-12-02 12:05:14,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 314 states have (on average 1.6464968152866242) internal successors, (517), 361 states have internal predecessors, (517), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-12-02 12:05:14,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 595 transitions. [2024-12-02 12:05:14,024 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 595 transitions. Word has length 43 [2024-12-02 12:05:14,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:14,024 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 595 transitions. [2024-12-02 12:05:14,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 12:05:14,024 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 595 transitions. [2024-12-02 12:05:14,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-02 12:05:14,024 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:14,024 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:05:14,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-12-02 12:05:14,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-12-02 12:05:14,225 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:14,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:14,225 INFO L85 PathProgramCache]: Analyzing trace with hash -449944359, now seen corresponding path program 1 times [2024-12-02 12:05:14,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:14,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995032636] [2024-12-02 12:05:14,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:14,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:05:14,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1167066231] [2024-12-02 12:05:14,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:14,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:14,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:14,241 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:14,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-12-02 12:05:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:14,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 12:05:14,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:14,471 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 12:05:14,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:22,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:22,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995032636] [2024-12-02 12:05:22,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:05:22,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167066231] [2024-12-02 12:05:22,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167066231] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:22,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:05:22,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-12-02 12:05:22,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573672953] [2024-12-02 12:05:22,748 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:05:22,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 12:05:22,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:22,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 12:05:22,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=213, Unknown=2, NotChecked=0, Total=272 [2024-12-02 12:05:22,749 INFO L87 Difference]: Start difference. First operand 403 states and 595 transitions. Second operand has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 12:05:23,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:23,400 INFO L93 Difference]: Finished difference Result 445 states and 608 transitions. [2024-12-02 12:05:23,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:05:23,401 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 49 [2024-12-02 12:05:23,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:23,402 INFO L225 Difference]: With dead ends: 445 [2024-12-02 12:05:23,402 INFO L226 Difference]: Without dead ends: 444 [2024-12-02 12:05:23,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=108, Invalid=352, Unknown=2, NotChecked=0, Total=462 [2024-12-02 12:05:23,403 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 626 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:23,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 586 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:05:23,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-12-02 12:05:23,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 403. [2024-12-02 12:05:23,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 314 states have (on average 1.6369426751592357) internal successors, (514), 361 states have internal predecessors, (514), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-12-02 12:05:23,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 592 transitions. [2024-12-02 12:05:23,431 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 592 transitions. Word has length 49 [2024-12-02 12:05:23,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:23,431 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 592 transitions. [2024-12-02 12:05:23,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 12:05:23,431 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 592 transitions. [2024-12-02 12:05:23,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 12:05:23,431 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:23,431 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:05:23,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-12-02 12:05:23,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-12-02 12:05:23,632 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:23,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:23,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1063373152, now seen corresponding path program 1 times [2024-12-02 12:05:23,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:23,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993066991] [2024-12-02 12:05:23,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:23,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:05:23,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1389898247] [2024-12-02 12:05:23,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:23,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:23,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:23,642 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:23,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-12-02 12:05:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:23,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 12:05:23,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:23,887 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 12:05:23,887 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:33,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:33,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993066991] [2024-12-02 12:05:33,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:05:33,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389898247] [2024-12-02 12:05:33,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389898247] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:33,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:05:33,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-12-02 12:05:33,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946245629] [2024-12-02 12:05:33,695 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:05:33,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 12:05:33,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:33,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 12:05:33,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=218, Unknown=2, NotChecked=0, Total=272 [2024-12-02 12:05:33,696 INFO L87 Difference]: Start difference. First operand 403 states and 592 transitions. Second operand has 11 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 12:05:34,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:34,320 INFO L93 Difference]: Finished difference Result 445 states and 605 transitions. [2024-12-02 12:05:34,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:05:34,321 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 50 [2024-12-02 12:05:34,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:34,322 INFO L225 Difference]: With dead ends: 445 [2024-12-02 12:05:34,322 INFO L226 Difference]: Without dead ends: 444 [2024-12-02 12:05:34,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=108, Invalid=352, Unknown=2, NotChecked=0, Total=462 [2024-12-02 12:05:34,323 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 635 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:34,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 586 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:05:34,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-12-02 12:05:34,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 403. [2024-12-02 12:05:34,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 314 states have (on average 1.627388535031847) internal successors, (511), 361 states have internal predecessors, (511), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-12-02 12:05:34,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 589 transitions. [2024-12-02 12:05:34,349 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 589 transitions. Word has length 50 [2024-12-02 12:05:34,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:34,349 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 589 transitions. [2024-12-02 12:05:34,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 12:05:34,349 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 589 transitions. [2024-12-02 12:05:34,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-12-02 12:05:34,350 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:34,350 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:05:34,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-12-02 12:05:34,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 12:05:34,550 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:34,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:34,551 INFO L85 PathProgramCache]: Analyzing trace with hash 2146453195, now seen corresponding path program 1 times [2024-12-02 12:05:34,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:34,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639006192] [2024-12-02 12:05:34,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:34,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 12:05:34,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:34,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639006192] [2024-12-02 12:05:34,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639006192] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:34,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294681410] [2024-12-02 12:05:34,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:34,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:34,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:34,692 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:34,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-12-02 12:05:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:34,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:05:34,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:34,822 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 12:05:34,822 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:34,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294681410] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:34,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:05:34,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-12-02 12:05:34,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909357312] [2024-12-02 12:05:34,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:34,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:05:34,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:34,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:05:34,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:05:34,824 INFO L87 Difference]: Start difference. First operand 403 states and 589 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:05:35,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:35,116 INFO L93 Difference]: Finished difference Result 430 states and 593 transitions. [2024-12-02 12:05:35,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:05:35,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2024-12-02 12:05:35,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:35,117 INFO L225 Difference]: With dead ends: 430 [2024-12-02 12:05:35,117 INFO L226 Difference]: Without dead ends: 429 [2024-12-02 12:05:35,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:05:35,118 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 250 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:35,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 265 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:05:35,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-12-02 12:05:35,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 403. [2024-12-02 12:05:35,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 314 states have (on average 1.624203821656051) internal successors, (510), 361 states have internal predecessors, (510), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-12-02 12:05:35,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 588 transitions. [2024-12-02 12:05:35,166 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 588 transitions. Word has length 51 [2024-12-02 12:05:35,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:35,166 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 588 transitions. [2024-12-02 12:05:35,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:05:35,166 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 588 transitions. [2024-12-02 12:05:35,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-12-02 12:05:35,167 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:35,167 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:05:35,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-12-02 12:05:35,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 12:05:35,367 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:35,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:35,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1395170747, now seen corresponding path program 1 times [2024-12-02 12:05:35,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:35,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27213817] [2024-12-02 12:05:35,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:35,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:05:35,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [356336335] [2024-12-02 12:05:35,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:35,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:35,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:35,380 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:35,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-12-02 12:05:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:35,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 12:05:35,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:35,624 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 12:05:35,624 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:39,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:39,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27213817] [2024-12-02 12:05:39,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:05:39,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356336335] [2024-12-02 12:05:39,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356336335] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:39,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:05:39,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-12-02 12:05:39,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318362703] [2024-12-02 12:05:39,897 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:05:39,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 12:05:39,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:39,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 12:05:39,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=214, Unknown=1, NotChecked=0, Total=272 [2024-12-02 12:05:39,898 INFO L87 Difference]: Start difference. First operand 403 states and 588 transitions. Second operand has 11 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 12:05:40,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:40,592 INFO L93 Difference]: Finished difference Result 451 states and 609 transitions. [2024-12-02 12:05:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:05:40,592 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 51 [2024-12-02 12:05:40,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:40,593 INFO L225 Difference]: With dead ends: 451 [2024-12-02 12:05:40,593 INFO L226 Difference]: Without dead ends: 450 [2024-12-02 12:05:40,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=112, Invalid=393, Unknown=1, NotChecked=0, Total=506 [2024-12-02 12:05:40,594 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 579 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:40,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 438 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:05:40,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-12-02 12:05:40,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 393. [2024-12-02 12:05:40,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 305 states have (on average 1.639344262295082) internal successors, (500), 352 states have internal predecessors, (500), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 12:05:40,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 576 transitions. [2024-12-02 12:05:40,640 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 576 transitions. Word has length 51 [2024-12-02 12:05:40,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:40,641 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 576 transitions. [2024-12-02 12:05:40,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 12:05:40,641 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 576 transitions. [2024-12-02 12:05:40,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-12-02 12:05:40,641 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:40,641 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:05:40,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-12-02 12:05:40,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 12:05:40,842 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:40,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:40,842 INFO L85 PathProgramCache]: Analyzing trace with hash 2115539711, now seen corresponding path program 1 times [2024-12-02 12:05:40,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:40,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321277273] [2024-12-02 12:05:40,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:40,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:05:40,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731849604] [2024-12-02 12:05:40,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:40,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:40,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:40,852 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:40,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-12-02 12:05:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:40,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:05:40,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:40,945 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 12:05:40,945 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:40,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:40,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321277273] [2024-12-02 12:05:40,945 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:05:40,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731849604] [2024-12-02 12:05:40,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731849604] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:40,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:40,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:05:40,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764609635] [2024-12-02 12:05:40,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:40,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:05:40,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:40,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:05:40,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:05:40,946 INFO L87 Difference]: Start difference. First operand 393 states and 576 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:05:41,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:41,155 INFO L93 Difference]: Finished difference Result 420 states and 580 transitions. [2024-12-02 12:05:41,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:05:41,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2024-12-02 12:05:41,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:41,157 INFO L225 Difference]: With dead ends: 420 [2024-12-02 12:05:41,157 INFO L226 Difference]: Without dead ends: 419 [2024-12-02 12:05:41,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:05:41,157 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 247 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:41,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 267 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:05:41,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-12-02 12:05:41,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 393. [2024-12-02 12:05:41,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 305 states have (on average 1.6360655737704919) internal successors, (499), 352 states have internal predecessors, (499), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 12:05:41,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 575 transitions. [2024-12-02 12:05:41,190 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 575 transitions. Word has length 52 [2024-12-02 12:05:41,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:41,190 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 575 transitions. [2024-12-02 12:05:41,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:05:41,190 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 575 transitions. [2024-12-02 12:05:41,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-12-02 12:05:41,190 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:41,190 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:05:41,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-12-02 12:05:41,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 12:05:41,391 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:41,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:41,391 INFO L85 PathProgramCache]: Analyzing trace with hash 300620290, now seen corresponding path program 1 times [2024-12-02 12:05:41,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:41,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526363368] [2024-12-02 12:05:41,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:41,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:05:41,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1640030943] [2024-12-02 12:05:41,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:41,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:41,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:41,400 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:41,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-12-02 12:05:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:41,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 12:05:41,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:41,641 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 12:05:41,641 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:42,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:42,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526363368] [2024-12-02 12:05:42,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:05:42,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640030943] [2024-12-02 12:05:42,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640030943] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:42,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:05:42,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-12-02 12:05:42,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199093874] [2024-12-02 12:05:42,071 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:05:42,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 12:05:42,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:42,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 12:05:42,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-12-02 12:05:42,071 INFO L87 Difference]: Start difference. First operand 393 states and 575 transitions. Second operand has 11 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 12:05:42,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:42,785 INFO L93 Difference]: Finished difference Result 441 states and 596 transitions. [2024-12-02 12:05:42,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:05:42,786 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 52 [2024-12-02 12:05:42,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:42,788 INFO L225 Difference]: With dead ends: 441 [2024-12-02 12:05:42,788 INFO L226 Difference]: Without dead ends: 440 [2024-12-02 12:05:42,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2024-12-02 12:05:42,789 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 383 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:42,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 474 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:05:42,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-12-02 12:05:42,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 393. [2024-12-02 12:05:42,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 305 states have (on average 1.6295081967213114) internal successors, (497), 352 states have internal predecessors, (497), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 12:05:42,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 573 transitions. [2024-12-02 12:05:42,814 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 573 transitions. Word has length 52 [2024-12-02 12:05:42,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:42,815 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 573 transitions. [2024-12-02 12:05:42,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 12:05:42,815 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 573 transitions. [2024-12-02 12:05:42,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-12-02 12:05:42,815 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:42,815 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:05:42,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-12-02 12:05:43,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 12:05:43,016 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:43,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:43,016 INFO L85 PathProgramCache]: Analyzing trace with hash 729294493, now seen corresponding path program 1 times [2024-12-02 12:05:43,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:43,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482067398] [2024-12-02 12:05:43,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:43,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:05:43,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008205779] [2024-12-02 12:05:43,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:43,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:43,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:43,028 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:43,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-12-02 12:05:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:43,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 12:05:43,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:43,370 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 12:05:43,370 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:43,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:43,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482067398] [2024-12-02 12:05:43,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:05:43,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008205779] [2024-12-02 12:05:43,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008205779] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:43,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:05:43,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-12-02 12:05:43,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857034806] [2024-12-02 12:05:43,435 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:05:43,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 12:05:43,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:43,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 12:05:43,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:05:43,436 INFO L87 Difference]: Start difference. First operand 393 states and 573 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-12-02 12:05:44,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:44,162 INFO L93 Difference]: Finished difference Result 439 states and 592 transitions. [2024-12-02 12:05:44,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 12:05:44,162 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 53 [2024-12-02 12:05:44,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:44,163 INFO L225 Difference]: With dead ends: 439 [2024-12-02 12:05:44,163 INFO L226 Difference]: Without dead ends: 438 [2024-12-02 12:05:44,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-12-02 12:05:44,164 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 324 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:44,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 646 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 12:05:44,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-12-02 12:05:44,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 393. [2024-12-02 12:05:44,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 305 states have (on average 1.6229508196721312) internal successors, (495), 352 states have internal predecessors, (495), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 12:05:44,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 571 transitions. [2024-12-02 12:05:44,190 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 571 transitions. Word has length 53 [2024-12-02 12:05:44,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:44,190 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 571 transitions. [2024-12-02 12:05:44,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-12-02 12:05:44,190 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 571 transitions. [2024-12-02 12:05:44,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-12-02 12:05:44,191 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:44,191 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:05:44,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-12-02 12:05:44,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:44,392 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:05:44,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:44,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1133292900, now seen corresponding path program 1 times [2024-12-02 12:05:44,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:44,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005655747] [2024-12-02 12:05:44,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:44,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:05:44,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057257486] [2024-12-02 12:05:44,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:44,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:05:44,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:05:44,401 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:05:44,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-12-02 12:05:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:44,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 12:05:44,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:44,808 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 12:05:44,808 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:53,307 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 12:05:53,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:53,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005655747] [2024-12-02 12:05:53,307 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:05:53,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057257486] [2024-12-02 12:05:53,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057257486] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:05:53,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:05:53,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-12-02 12:05:53,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368316182] [2024-12-02 12:05:53,307 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:05:53,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 12:05:53,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:53,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 12:05:53,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=280, Unknown=2, NotChecked=0, Total=342 [2024-12-02 12:05:53,308 INFO L87 Difference]: Start difference. First operand 393 states and 571 transitions. Second operand has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 17 states have internal predecessors, (66), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-12-02 12:06:06,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:06:11,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:06:15,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:06:20,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:06:25,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:06:30,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:06:34,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:06:34,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:34,421 INFO L93 Difference]: Finished difference Result 456 states and 610 transitions. [2024-12-02 12:06:34,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 12:06:34,421 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 17 states have internal predecessors, (66), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 54 [2024-12-02 12:06:34,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:34,423 INFO L225 Difference]: With dead ends: 456 [2024-12-02 12:06:34,423 INFO L226 Difference]: Without dead ends: 455 [2024-12-02 12:06:34,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=267, Invalid=989, Unknown=4, NotChecked=0, Total=1260 [2024-12-02 12:06:34,424 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 907 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 101 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:34,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 452 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1371 Invalid, 7 Unknown, 0 Unchecked, 32.2s Time] [2024-12-02 12:06:34,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-12-02 12:06:34,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 399. [2024-12-02 12:06:34,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 311 states have (on average 1.6109324758842443) internal successors, (501), 358 states have internal predecessors, (501), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 12:06:34,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 577 transitions. [2024-12-02 12:06:34,465 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 577 transitions. Word has length 54 [2024-12-02 12:06:34,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:34,466 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 577 transitions. [2024-12-02 12:06:34,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 17 states have internal predecessors, (66), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-12-02 12:06:34,466 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 577 transitions. [2024-12-02 12:06:34,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 12:06:34,466 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:34,466 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:34,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-12-02 12:06:34,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-12-02 12:06:34,667 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:34,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:34,667 INFO L85 PathProgramCache]: Analyzing trace with hash 497762000, now seen corresponding path program 1 times [2024-12-02 12:06:34,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:34,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853251286] [2024-12-02 12:06:34,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:34,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:06:34,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1921766403] [2024-12-02 12:06:34,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:34,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:34,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:34,676 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:34,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-12-02 12:06:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:34,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 12:06:34,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-02 12:06:34,773 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:06:34,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:34,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853251286] [2024-12-02 12:06:34,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:06:34,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921766403] [2024-12-02 12:06:34,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921766403] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:34,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:34,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:06:34,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494672243] [2024-12-02 12:06:34,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:34,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:06:34,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:34,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:06:34,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:06:34,774 INFO L87 Difference]: Start difference. First operand 399 states and 577 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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) [2024-12-02 12:06:34,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:34,999 INFO L93 Difference]: Finished difference Result 474 states and 665 transitions. [2024-12-02 12:06:35,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:06:35,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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 58 [2024-12-02 12:06:35,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:35,001 INFO L225 Difference]: With dead ends: 474 [2024-12-02 12:06:35,001 INFO L226 Difference]: Without dead ends: 471 [2024-12-02 12:06:35,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:06:35,001 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 209 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:35,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 199 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:06:35,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-12-02 12:06:35,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 453. [2024-12-02 12:06:35,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 357 states have (on average 1.5658263305322129) internal successors, (559), 404 states have internal predecessors, (559), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 12:06:35,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 651 transitions. [2024-12-02 12:06:35,045 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 651 transitions. Word has length 58 [2024-12-02 12:06:35,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:35,045 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 651 transitions. [2024-12-02 12:06:35,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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) [2024-12-02 12:06:35,045 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 651 transitions. [2024-12-02 12:06:35,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 12:06:35,045 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:35,046 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:35,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-12-02 12:06:35,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-12-02 12:06:35,246 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:35,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:35,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1749247073, now seen corresponding path program 1 times [2024-12-02 12:06:35,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:35,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070114046] [2024-12-02 12:06:35,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:35,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:06:35,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [408676784] [2024-12-02 12:06:35,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:35,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:35,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:35,256 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:35,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-12-02 12:06:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:35,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 12:06:35,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-02 12:06:35,361 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:06:35,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:35,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070114046] [2024-12-02 12:06:35,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:06:35,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408676784] [2024-12-02 12:06:35,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408676784] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:35,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:35,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:06:35,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411304232] [2024-12-02 12:06:35,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:35,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:06:35,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:35,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:06:35,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:06:35,362 INFO L87 Difference]: Start difference. First operand 453 states and 651 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 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) [2024-12-02 12:06:35,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:35,645 INFO L93 Difference]: Finished difference Result 472 states and 659 transitions. [2024-12-02 12:06:35,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:06:35,645 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), 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 59 [2024-12-02 12:06:35,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:35,646 INFO L225 Difference]: With dead ends: 472 [2024-12-02 12:06:35,646 INFO L226 Difference]: Without dead ends: 471 [2024-12-02 12:06:35,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:06:35,647 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 193 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:35,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 270 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:06:35,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-12-02 12:06:35,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 453. [2024-12-02 12:06:35,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 357 states have (on average 1.5602240896358543) internal successors, (557), 404 states have internal predecessors, (557), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 12:06:35,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 649 transitions. [2024-12-02 12:06:35,689 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 649 transitions. Word has length 59 [2024-12-02 12:06:35,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:35,690 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 649 transitions. [2024-12-02 12:06:35,690 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), 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) [2024-12-02 12:06:35,690 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 649 transitions. [2024-12-02 12:06:35,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 12:06:35,690 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:35,690 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:35,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-12-02 12:06:35,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-12-02 12:06:35,890 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:35,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:35,891 INFO L85 PathProgramCache]: Analyzing trace with hash 332224690, now seen corresponding path program 1 times [2024-12-02 12:06:35,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:35,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776835988] [2024-12-02 12:06:35,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:35,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:36,099 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 12:06:36,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:36,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776835988] [2024-12-02 12:06:36,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776835988] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:36,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543468009] [2024-12-02 12:06:36,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:36,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:36,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:36,101 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:36,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-12-02 12:06:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:36,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 12:06:36,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:36,269 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 12:06:36,269 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:06:36,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543468009] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:36,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:06:36,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2024-12-02 12:06:36,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006233666] [2024-12-02 12:06:36,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:36,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:06:36,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:36,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:06:36,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-12-02 12:06:36,270 INFO L87 Difference]: Start difference. First operand 453 states and 649 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:06:36,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:36,715 INFO L93 Difference]: Finished difference Result 507 states and 658 transitions. [2024-12-02 12:06:36,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:06:36,716 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 62 [2024-12-02 12:06:36,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:36,717 INFO L225 Difference]: With dead ends: 507 [2024-12-02 12:06:36,717 INFO L226 Difference]: Without dead ends: 506 [2024-12-02 12:06:36,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-12-02 12:06:36,717 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 393 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:36,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 566 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:06:36,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-12-02 12:06:36,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 453. [2024-12-02 12:06:36,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 357 states have (on average 1.557422969187675) internal successors, (556), 404 states have internal predecessors, (556), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 12:06:36,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 648 transitions. [2024-12-02 12:06:36,760 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 648 transitions. Word has length 62 [2024-12-02 12:06:36,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:36,760 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 648 transitions. [2024-12-02 12:06:36,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:06:36,760 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 648 transitions. [2024-12-02 12:06:36,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-02 12:06:36,761 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:36,761 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:36,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-12-02 12:06:36,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:36,961 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:36,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:36,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1709030904, now seen corresponding path program 1 times [2024-12-02 12:06:36,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:36,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484799239] [2024-12-02 12:06:36,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:36,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:06:36,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [678679971] [2024-12-02 12:06:36,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:36,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:36,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:36,972 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:36,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-12-02 12:06:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:37,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 12:06:37,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:37,090 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 12:06:37,090 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:37,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:37,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484799239] [2024-12-02 12:06:37,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:06:37,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678679971] [2024-12-02 12:06:37,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678679971] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:37,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:06:37,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-12-02 12:06:37,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466993701] [2024-12-02 12:06:37,113 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:06:37,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:06:37,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:37,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:06:37,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:06:37,113 INFO L87 Difference]: Start difference. First operand 453 states and 648 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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) [2024-12-02 12:06:37,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:37,441 INFO L93 Difference]: Finished difference Result 493 states and 660 transitions. [2024-12-02 12:06:37,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 12:06:37,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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 63 [2024-12-02 12:06:37,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:37,442 INFO L225 Difference]: With dead ends: 493 [2024-12-02 12:06:37,442 INFO L226 Difference]: Without dead ends: 492 [2024-12-02 12:06:37,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:06:37,443 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 340 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:37,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 317 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:06:37,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-12-02 12:06:37,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 453. [2024-12-02 12:06:37,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 357 states have (on average 1.5490196078431373) internal successors, (553), 404 states have internal predecessors, (553), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 12:06:37,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 645 transitions. [2024-12-02 12:06:37,482 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 645 transitions. Word has length 63 [2024-12-02 12:06:37,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:37,482 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 645 transitions. [2024-12-02 12:06:37,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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) [2024-12-02 12:06:37,483 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 645 transitions. [2024-12-02 12:06:37,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 12:06:37,483 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:37,483 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:37,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-12-02 12:06:37,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:37,683 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:37,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:37,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1317535503, now seen corresponding path program 1 times [2024-12-02 12:06:37,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:37,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564362084] [2024-12-02 12:06:37,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:37,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:37,739 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:37,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:37,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564362084] [2024-12-02 12:06:37,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564362084] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:37,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:37,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:06:37,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254529248] [2024-12-02 12:06:37,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:37,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:06:37,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:37,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:06:37,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:06:37,740 INFO L87 Difference]: Start difference. First operand 453 states and 645 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:06:38,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:38,042 INFO L93 Difference]: Finished difference Result 475 states and 657 transitions. [2024-12-02 12:06:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:06:38,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2024-12-02 12:06:38,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:38,044 INFO L225 Difference]: With dead ends: 475 [2024-12-02 12:06:38,044 INFO L226 Difference]: Without dead ends: 473 [2024-12-02 12:06:38,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:06:38,044 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 221 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:38,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 268 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:06:38,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-12-02 12:06:38,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 455. [2024-12-02 12:06:38,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 359 states have (on average 1.5403899721448469) internal successors, (553), 406 states have internal predecessors, (553), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 12:06:38,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 645 transitions. [2024-12-02 12:06:38,100 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 645 transitions. Word has length 65 [2024-12-02 12:06:38,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:38,100 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 645 transitions. [2024-12-02 12:06:38,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:06:38,100 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 645 transitions. [2024-12-02 12:06:38,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-12-02 12:06:38,100 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:38,101 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:38,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 12:06:38,101 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:38,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:38,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2106072483, now seen corresponding path program 1 times [2024-12-02 12:06:38,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:38,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344858989] [2024-12-02 12:06:38,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:38,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:38,173 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:38,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:38,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344858989] [2024-12-02 12:06:38,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344858989] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:38,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:38,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:06:38,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875514066] [2024-12-02 12:06:38,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:38,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:06:38,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:38,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:06:38,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:06:38,175 INFO L87 Difference]: Start difference. First operand 455 states and 645 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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) [2024-12-02 12:06:38,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:38,448 INFO L93 Difference]: Finished difference Result 484 states and 653 transitions. [2024-12-02 12:06:38,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:06:38,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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 66 [2024-12-02 12:06:38,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:38,453 INFO L225 Difference]: With dead ends: 484 [2024-12-02 12:06:38,453 INFO L226 Difference]: Without dead ends: 482 [2024-12-02 12:06:38,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:06:38,454 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 303 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:38,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 391 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:06:38,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-12-02 12:06:38,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 455. [2024-12-02 12:06:38,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 359 states have (on average 1.5348189415041782) internal successors, (551), 406 states have internal predecessors, (551), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 12:06:38,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 643 transitions. [2024-12-02 12:06:38,505 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 643 transitions. Word has length 66 [2024-12-02 12:06:38,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:38,505 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 643 transitions. [2024-12-02 12:06:38,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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) [2024-12-02 12:06:38,505 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 643 transitions. [2024-12-02 12:06:38,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 12:06:38,505 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:38,505 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:38,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 12:06:38,505 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:38,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:38,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1006063570, now seen corresponding path program 1 times [2024-12-02 12:06:38,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:38,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433937245] [2024-12-02 12:06:38,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:38,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:38,547 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:38,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:38,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433937245] [2024-12-02 12:06:38,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433937245] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:38,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:38,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:06:38,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136830312] [2024-12-02 12:06:38,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:38,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:06:38,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:38,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:06:38,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:38,548 INFO L87 Difference]: Start difference. First operand 455 states and 643 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-12-02 12:06:38,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:38,695 INFO L93 Difference]: Finished difference Result 629 states and 914 transitions. [2024-12-02 12:06:38,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:06:38,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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 68 [2024-12-02 12:06:38,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:38,697 INFO L225 Difference]: With dead ends: 629 [2024-12-02 12:06:38,698 INFO L226 Difference]: Without dead ends: 628 [2024-12-02 12:06:38,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:06:38,698 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 22 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:38,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 216 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:06:38,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-12-02 12:06:38,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 583. [2024-12-02 12:06:38,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 465 states have (on average 1.5376344086021505) internal successors, (715), 512 states have internal predecessors, (715), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-12-02 12:06:38,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 851 transitions. [2024-12-02 12:06:38,812 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 851 transitions. Word has length 68 [2024-12-02 12:06:38,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:38,812 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 851 transitions. [2024-12-02 12:06:38,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-12-02 12:06:38,812 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 851 transitions. [2024-12-02 12:06:38,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 12:06:38,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:38,813 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:38,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 12:06:38,813 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:38,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:38,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1123199734, now seen corresponding path program 1 times [2024-12-02 12:06:38,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:38,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20235039] [2024-12-02 12:06:38,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:38,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:38,876 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:38,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:38,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20235039] [2024-12-02 12:06:38,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20235039] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:38,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:38,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:06:38,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127268719] [2024-12-02 12:06:38,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:38,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:06:38,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:38,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:06:38,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:06:38,877 INFO L87 Difference]: Start difference. First operand 583 states and 851 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 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) [2024-12-02 12:06:39,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:39,231 INFO L93 Difference]: Finished difference Result 599 states and 851 transitions. [2024-12-02 12:06:39,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:06:39,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 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 69 [2024-12-02 12:06:39,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:39,233 INFO L225 Difference]: With dead ends: 599 [2024-12-02 12:06:39,233 INFO L226 Difference]: Without dead ends: 598 [2024-12-02 12:06:39,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:06:39,233 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 198 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:39,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 342 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:06:39,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2024-12-02 12:06:39,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 583. [2024-12-02 12:06:39,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 465 states have (on average 1.5354838709677419) internal successors, (714), 512 states have internal predecessors, (714), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-12-02 12:06:39,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 850 transitions. [2024-12-02 12:06:39,309 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 850 transitions. Word has length 69 [2024-12-02 12:06:39,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:39,309 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 850 transitions. [2024-12-02 12:06:39,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 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) [2024-12-02 12:06:39,309 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 850 transitions. [2024-12-02 12:06:39,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 12:06:39,310 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:39,310 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:39,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 12:06:39,310 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:39,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:39,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1755804919, now seen corresponding path program 1 times [2024-12-02 12:06:39,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:39,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599140892] [2024-12-02 12:06:39,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:39,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:06:39,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2010905528] [2024-12-02 12:06:39,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:39,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:39,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:39,326 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:39,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-12-02 12:06:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:39,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 12:06:39,367 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:39,453 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-02 12:06:39,453 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:39,570 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-02 12:06:39,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:39,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599140892] [2024-12-02 12:06:39,570 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:06:39,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010905528] [2024-12-02 12:06:39,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010905528] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:06:39,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:06:39,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-12-02 12:06:39,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256669574] [2024-12-02 12:06:39,570 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:06:39,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:06:39,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:39,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:06:39,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:06:39,571 INFO L87 Difference]: Start difference. First operand 583 states and 850 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 12:06:40,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:40,700 INFO L93 Difference]: Finished difference Result 864 states and 1191 transitions. [2024-12-02 12:06:40,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 12:06:40,701 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 69 [2024-12-02 12:06:40,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:40,703 INFO L225 Difference]: With dead ends: 864 [2024-12-02 12:06:40,703 INFO L226 Difference]: Without dead ends: 861 [2024-12-02 12:06:40,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2024-12-02 12:06:40,703 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 656 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:40,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 844 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:06:40,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2024-12-02 12:06:40,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 631. [2024-12-02 12:06:40,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 507 states have (on average 1.5029585798816567) internal successors, (762), 554 states have internal predecessors, (762), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-12-02 12:06:40,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 910 transitions. [2024-12-02 12:06:40,800 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 910 transitions. Word has length 69 [2024-12-02 12:06:40,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:40,801 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 910 transitions. [2024-12-02 12:06:40,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 12:06:40,801 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 910 transitions. [2024-12-02 12:06:40,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-12-02 12:06:40,801 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:40,801 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:40,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-12-02 12:06:41,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-12-02 12:06:41,002 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:41,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:41,002 INFO L85 PathProgramCache]: Analyzing trace with hash 459453524, now seen corresponding path program 1 times [2024-12-02 12:06:41,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:41,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346803920] [2024-12-02 12:06:41,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:41,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:41,042 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:41,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:41,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346803920] [2024-12-02 12:06:41,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346803920] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:41,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:41,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:06:41,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109087904] [2024-12-02 12:06:41,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:41,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:06:41,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:41,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:06:41,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:06:41,044 INFO L87 Difference]: Start difference. First operand 631 states and 910 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-12-02 12:06:41,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:41,210 INFO L93 Difference]: Finished difference Result 702 states and 976 transitions. [2024-12-02 12:06:41,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:06:41,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 70 [2024-12-02 12:06:41,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:41,213 INFO L225 Difference]: With dead ends: 702 [2024-12-02 12:06:41,213 INFO L226 Difference]: Without dead ends: 698 [2024-12-02 12:06:41,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:06:41,214 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 77 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:41,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 301 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:06:41,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-12-02 12:06:41,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 651. [2024-12-02 12:06:41,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 527 states have (on average 1.4895635673624288) internal successors, (785), 574 states have internal predecessors, (785), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-12-02 12:06:41,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 933 transitions. [2024-12-02 12:06:41,314 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 933 transitions. Word has length 70 [2024-12-02 12:06:41,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:41,315 INFO L471 AbstractCegarLoop]: Abstraction has 651 states and 933 transitions. [2024-12-02 12:06:41,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-12-02 12:06:41,315 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 933 transitions. [2024-12-02 12:06:41,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-12-02 12:06:41,315 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:41,315 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:41,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 12:06:41,316 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:41,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:41,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1404622470, now seen corresponding path program 1 times [2024-12-02 12:06:41,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:41,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216069987] [2024-12-02 12:06:41,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:41,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:06:41,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [128406412] [2024-12-02 12:06:41,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:41,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:41,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:41,332 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:41,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-12-02 12:06:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:41,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 12:06:41,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:41,505 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-02 12:06:41,505 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:41,823 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-02 12:06:41,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:41,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216069987] [2024-12-02 12:06:41,823 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:06:41,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128406412] [2024-12-02 12:06:41,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128406412] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:06:41,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:06:41,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-12-02 12:06:41,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303135063] [2024-12-02 12:06:41,824 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:06:41,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:06:41,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:41,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:06:41,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:06:41,825 INFO L87 Difference]: Start difference. First operand 651 states and 933 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 12:06:42,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:42,962 INFO L93 Difference]: Finished difference Result 912 states and 1201 transitions. [2024-12-02 12:06:42,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 12:06:42,962 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 70 [2024-12-02 12:06:42,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:42,964 INFO L225 Difference]: With dead ends: 912 [2024-12-02 12:06:42,964 INFO L226 Difference]: Without dead ends: 909 [2024-12-02 12:06:42,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=385, Invalid=1021, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 12:06:42,965 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 1170 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:42,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 570 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 12:06:42,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-12-02 12:06:43,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 793. [2024-12-02 12:06:43,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 651 states have (on average 1.4746543778801844) internal successors, (960), 698 states have internal predecessors, (960), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 12:06:43,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1144 transitions. [2024-12-02 12:06:43,092 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1144 transitions. Word has length 70 [2024-12-02 12:06:43,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:43,092 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 1144 transitions. [2024-12-02 12:06:43,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 12:06:43,093 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1144 transitions. [2024-12-02 12:06:43,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-12-02 12:06:43,093 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:43,093 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:43,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-12-02 12:06:43,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:43,294 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:43,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:43,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1704997528, now seen corresponding path program 1 times [2024-12-02 12:06:43,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:43,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453001833] [2024-12-02 12:06:43,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:43,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:43,353 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:43,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:43,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453001833] [2024-12-02 12:06:43,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453001833] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:43,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211624894] [2024-12-02 12:06:43,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:43,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:43,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:43,355 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:43,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-12-02 12:06:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:43,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:06:43,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:43,451 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:43,451 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:43,553 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:43,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211624894] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:06:43,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:06:43,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-12-02 12:06:43,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380743534] [2024-12-02 12:06:43,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:06:43,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:06:43,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:43,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:06:43,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:06:43,554 INFO L87 Difference]: Start difference. First operand 793 states and 1144 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-12-02 12:06:44,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:44,516 INFO L93 Difference]: Finished difference Result 1078 states and 1505 transitions. [2024-12-02 12:06:44,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 12:06:44,517 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 76 [2024-12-02 12:06:44,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:44,519 INFO L225 Difference]: With dead ends: 1078 [2024-12-02 12:06:44,519 INFO L226 Difference]: Without dead ends: 1076 [2024-12-02 12:06:44,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2024-12-02 12:06:44,520 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 596 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:44,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 719 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 12:06:44,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2024-12-02 12:06:44,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 796. [2024-12-02 12:06:44,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 653 states have (on average 1.448698315467075) internal successors, (946), 699 states have internal predecessors, (946), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 12:06:44,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1134 transitions. [2024-12-02 12:06:44,634 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1134 transitions. Word has length 76 [2024-12-02 12:06:44,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:44,634 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1134 transitions. [2024-12-02 12:06:44,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-12-02 12:06:44,634 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1134 transitions. [2024-12-02 12:06:44,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 12:06:44,635 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:44,635 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:44,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-12-02 12:06:44,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-12-02 12:06:44,835 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:44,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:44,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1315315932, now seen corresponding path program 1 times [2024-12-02 12:06:44,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:44,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441556276] [2024-12-02 12:06:44,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:44,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:44,888 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:44,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:44,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441556276] [2024-12-02 12:06:44,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441556276] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:44,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:44,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:06:44,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624649732] [2024-12-02 12:06:44,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:44,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:06:44,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:44,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:06:44,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:06:44,890 INFO L87 Difference]: Start difference. First operand 796 states and 1134 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:06:45,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:45,359 INFO L93 Difference]: Finished difference Result 823 states and 1140 transitions. [2024-12-02 12:06:45,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 12:06:45,359 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 77 [2024-12-02 12:06:45,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:45,361 INFO L225 Difference]: With dead ends: 823 [2024-12-02 12:06:45,361 INFO L226 Difference]: Without dead ends: 821 [2024-12-02 12:06:45,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:06:45,362 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 260 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:45,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 400 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:06:45,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-12-02 12:06:45,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 796. [2024-12-02 12:06:45,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 653 states have (on average 1.430321592649311) internal successors, (934), 699 states have internal predecessors, (934), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 12:06:45,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1122 transitions. [2024-12-02 12:06:45,454 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1122 transitions. Word has length 77 [2024-12-02 12:06:45,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:45,454 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1122 transitions. [2024-12-02 12:06:45,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:06:45,454 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1122 transitions. [2024-12-02 12:06:45,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 12:06:45,455 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:45,455 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:45,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 12:06:45,455 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:45,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:45,455 INFO L85 PathProgramCache]: Analyzing trace with hash -86846964, now seen corresponding path program 1 times [2024-12-02 12:06:45,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:45,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253432103] [2024-12-02 12:06:45,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:45,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:06:45,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2018501467] [2024-12-02 12:06:45,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:45,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:45,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:45,469 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:45,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-12-02 12:06:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:45,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:06:45,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:45,680 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:45,680 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:06:45,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:45,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253432103] [2024-12-02 12:06:45,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:06:45,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018501467] [2024-12-02 12:06:45,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018501467] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:45,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:45,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:06:45,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892287013] [2024-12-02 12:06:45,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:45,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:06:45,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:45,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:06:45,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:06:45,681 INFO L87 Difference]: Start difference. First operand 796 states and 1122 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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) [2024-12-02 12:06:45,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:45,989 INFO L93 Difference]: Finished difference Result 821 states and 1129 transitions. [2024-12-02 12:06:45,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:06:45,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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 78 [2024-12-02 12:06:45,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:45,993 INFO L225 Difference]: With dead ends: 821 [2024-12-02 12:06:45,993 INFO L226 Difference]: Without dead ends: 818 [2024-12-02 12:06:45,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:06:45,993 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 67 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:45,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 479 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:06:45,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-12-02 12:06:46,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 796. [2024-12-02 12:06:46,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 653 states have (on average 1.4241960183767228) internal successors, (930), 699 states have internal predecessors, (930), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 12:06:46,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1118 transitions. [2024-12-02 12:06:46,107 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1118 transitions. Word has length 78 [2024-12-02 12:06:46,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:46,107 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1118 transitions. [2024-12-02 12:06:46,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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) [2024-12-02 12:06:46,108 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1118 transitions. [2024-12-02 12:06:46,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 12:06:46,108 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:46,108 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:46,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-12-02 12:06:46,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-12-02 12:06:46,309 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:46,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:46,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1602711568, now seen corresponding path program 1 times [2024-12-02 12:06:46,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:46,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983749845] [2024-12-02 12:06:46,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:46,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:06:46,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695750431] [2024-12-02 12:06:46,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:46,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:46,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:46,320 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:46,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-12-02 12:06:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:46,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:06:46,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:46,510 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:46,510 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:46,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:46,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983749845] [2024-12-02 12:06:46,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:06:46,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695750431] [2024-12-02 12:06:46,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695750431] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:46,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:06:46,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-12-02 12:06:46,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674116388] [2024-12-02 12:06:46,670 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:06:46,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:06:46,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:46,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:06:46,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:06:46,670 INFO L87 Difference]: Start difference. First operand 796 states and 1118 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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) [2024-12-02 12:06:46,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:46,970 INFO L93 Difference]: Finished difference Result 920 states and 1257 transitions. [2024-12-02 12:06:46,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:06:46,970 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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 79 [2024-12-02 12:06:46,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:46,972 INFO L225 Difference]: With dead ends: 920 [2024-12-02 12:06:46,972 INFO L226 Difference]: Without dead ends: 919 [2024-12-02 12:06:46,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:06:46,972 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 166 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:46,973 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 370 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:06:46,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2024-12-02 12:06:47,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 804. [2024-12-02 12:06:47,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 661 states have (on average 1.420574886535552) internal successors, (939), 707 states have internal predecessors, (939), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 12:06:47,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1127 transitions. [2024-12-02 12:06:47,061 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1127 transitions. Word has length 79 [2024-12-02 12:06:47,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:47,061 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1127 transitions. [2024-12-02 12:06:47,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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) [2024-12-02 12:06:47,061 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1127 transitions. [2024-12-02 12:06:47,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 12:06:47,062 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:47,062 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:47,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-12-02 12:06:47,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-12-02 12:06:47,262 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:47,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:47,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1590407453, now seen corresponding path program 1 times [2024-12-02 12:06:47,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:47,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719894425] [2024-12-02 12:06:47,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:47,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:47,318 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:47,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:47,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719894425] [2024-12-02 12:06:47,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719894425] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:47,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579302338] [2024-12-02 12:06:47,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:47,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:47,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:47,321 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:47,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-12-02 12:06:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:47,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 12:06:47,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:47,455 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:47,455 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:47,599 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:47,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579302338] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:06:47,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:06:47,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 15 [2024-12-02 12:06:47,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748199608] [2024-12-02 12:06:47,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:06:47,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 12:06:47,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:47,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 12:06:47,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:06:47,601 INFO L87 Difference]: Start difference. First operand 804 states and 1127 transitions. Second operand has 16 states, 15 states have (on average 8.133333333333333) internal successors, (122), 16 states have internal predecessors, (122), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-12-02 12:06:48,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:48,311 INFO L93 Difference]: Finished difference Result 823 states and 1134 transitions. [2024-12-02 12:06:48,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 12:06:48,311 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.133333333333333) internal successors, (122), 16 states have internal predecessors, (122), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) Word has length 80 [2024-12-02 12:06:48,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:48,313 INFO L225 Difference]: With dead ends: 823 [2024-12-02 12:06:48,313 INFO L226 Difference]: Without dead ends: 820 [2024-12-02 12:06:48,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 12:06:48,314 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 545 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:48,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 369 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:06:48,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-12-02 12:06:48,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 802. [2024-12-02 12:06:48,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 661 states have (on average 1.3978819969742813) internal successors, (924), 705 states have internal predecessors, (924), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 12:06:48,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1112 transitions. [2024-12-02 12:06:48,428 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1112 transitions. Word has length 80 [2024-12-02 12:06:48,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:48,428 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1112 transitions. [2024-12-02 12:06:48,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.133333333333333) internal successors, (122), 16 states have internal predecessors, (122), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-12-02 12:06:48,428 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1112 transitions. [2024-12-02 12:06:48,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 12:06:48,429 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:48,429 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:48,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-12-02 12:06:48,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:48,629 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:48,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:48,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1687437358, now seen corresponding path program 1 times [2024-12-02 12:06:48,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:48,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309444221] [2024-12-02 12:06:48,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:48,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:06:48,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1195981420] [2024-12-02 12:06:48,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:48,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:48,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:48,643 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:48,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-12-02 12:06:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:48,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 12:06:48,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:48,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:06:48,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:48,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309444221] [2024-12-02 12:06:48,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:06:48,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195981420] [2024-12-02 12:06:48,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195981420] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:06:48,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:06:48,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:06:48,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024952515] [2024-12-02 12:06:48,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:48,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:06:48,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:48,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:06:48,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:06:48,922 INFO L87 Difference]: Start difference. First operand 802 states and 1112 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-12-02 12:06:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:49,243 INFO L93 Difference]: Finished difference Result 824 states and 1118 transitions. [2024-12-02 12:06:49,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:06:49,244 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 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 81 [2024-12-02 12:06:49,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:49,246 INFO L225 Difference]: With dead ends: 824 [2024-12-02 12:06:49,246 INFO L226 Difference]: Without dead ends: 823 [2024-12-02 12:06:49,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:06:49,246 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 80 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:49,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 323 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:06:49,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2024-12-02 12:06:49,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 802. [2024-12-02 12:06:49,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 661 states have (on average 1.3963691376701968) internal successors, (923), 705 states have internal predecessors, (923), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 12:06:49,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1111 transitions. [2024-12-02 12:06:49,337 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1111 transitions. Word has length 81 [2024-12-02 12:06:49,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:49,337 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1111 transitions. [2024-12-02 12:06:49,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-12-02 12:06:49,337 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1111 transitions. [2024-12-02 12:06:49,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 12:06:49,337 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:49,338 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:49,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-12-02 12:06:49,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-12-02 12:06:49,538 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:49,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:49,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1798357825, now seen corresponding path program 1 times [2024-12-02 12:06:49,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:49,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929649802] [2024-12-02 12:06:49,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:49,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:06:49,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1478327984] [2024-12-02 12:06:49,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:49,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:49,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:49,550 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:49,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-12-02 12:06:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:49,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 12:06:49,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:49,772 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:49,772 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:49,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:49,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929649802] [2024-12-02 12:06:49,827 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:06:49,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478327984] [2024-12-02 12:06:49,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478327984] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:49,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:06:49,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-12-02 12:06:49,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584406115] [2024-12-02 12:06:49,827 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:06:49,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:06:49,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:49,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:06:49,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:06:49,828 INFO L87 Difference]: Start difference. First operand 802 states and 1111 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 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) [2024-12-02 12:06:50,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:50,239 INFO L93 Difference]: Finished difference Result 860 states and 1145 transitions. [2024-12-02 12:06:50,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:06:50,239 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 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 85 [2024-12-02 12:06:50,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:50,241 INFO L225 Difference]: With dead ends: 860 [2024-12-02 12:06:50,241 INFO L226 Difference]: Without dead ends: 857 [2024-12-02 12:06:50,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:06:50,242 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 132 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:50,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 561 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:06:50,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2024-12-02 12:06:50,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 804. [2024-12-02 12:06:50,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 663 states have (on average 1.3861236802413273) internal successors, (919), 707 states have internal predecessors, (919), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 12:06:50,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1107 transitions. [2024-12-02 12:06:50,348 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1107 transitions. Word has length 85 [2024-12-02 12:06:50,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:50,349 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1107 transitions. [2024-12-02 12:06:50,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 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) [2024-12-02 12:06:50,349 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1107 transitions. [2024-12-02 12:06:50,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 12:06:50,349 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:50,349 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:50,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-12-02 12:06:50,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-12-02 12:06:50,550 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:50,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:50,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2099006792, now seen corresponding path program 1 times [2024-12-02 12:06:50,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:50,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715495967] [2024-12-02 12:06:50,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:50,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:06:50,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286510897] [2024-12-02 12:06:50,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:50,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:50,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:50,566 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:50,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-12-02 12:06:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:50,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 12:06:50,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:51,144 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 12:06:51,144 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:55,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:55,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715495967] [2024-12-02 12:06:55,438 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:06:55,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286510897] [2024-12-02 12:06:55,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286510897] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:55,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:06:55,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-12-02 12:06:55,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232648210] [2024-12-02 12:06:55,438 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:06:55,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 12:06:55,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:55,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 12:06:55,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=278, Unknown=1, NotChecked=0, Total=342 [2024-12-02 12:06:55,439 INFO L87 Difference]: Start difference. First operand 804 states and 1107 transitions. Second operand has 13 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:06:56,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:56,627 INFO L93 Difference]: Finished difference Result 1101 states and 1513 transitions. [2024-12-02 12:06:56,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 12:06:56,627 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 85 [2024-12-02 12:06:56,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:56,630 INFO L225 Difference]: With dead ends: 1101 [2024-12-02 12:06:56,630 INFO L226 Difference]: Without dead ends: 1099 [2024-12-02 12:06:56,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=146, Invalid=609, Unknown=1, NotChecked=0, Total=756 [2024-12-02 12:06:56,631 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 443 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 1505 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:56,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 754 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1505 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:06:56,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2024-12-02 12:06:56,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 979. [2024-12-02 12:06:56,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 816 states have (on average 1.3933823529411764) internal successors, (1137), 860 states have internal predecessors, (1137), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-12-02 12:06:56,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1369 transitions. [2024-12-02 12:06:56,748 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1369 transitions. Word has length 85 [2024-12-02 12:06:56,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:56,748 INFO L471 AbstractCegarLoop]: Abstraction has 979 states and 1369 transitions. [2024-12-02 12:06:56,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:06:56,749 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1369 transitions. [2024-12-02 12:06:56,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 12:06:56,749 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:56,749 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:56,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-12-02 12:06:56,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-12-02 12:06:56,950 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:56,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:56,950 INFO L85 PathProgramCache]: Analyzing trace with hash -85482125, now seen corresponding path program 1 times [2024-12-02 12:06:56,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:56,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565956809] [2024-12-02 12:06:56,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:56,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:06:56,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2032803697] [2024-12-02 12:06:56,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:56,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:56,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:56,960 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:56,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-12-02 12:06:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:57,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 12:06:57,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:57,183 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:06:57,183 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:57,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:06:57,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565956809] [2024-12-02 12:06:57,351 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:06:57,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032803697] [2024-12-02 12:06:57,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032803697] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:57,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:06:57,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-12-02 12:06:57,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834761148] [2024-12-02 12:06:57,352 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:06:57,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:06:57,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:06:57,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:06:57,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:06:57,352 INFO L87 Difference]: Start difference. First operand 979 states and 1369 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 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) [2024-12-02 12:06:57,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:57,874 INFO L93 Difference]: Finished difference Result 1310 states and 1802 transitions. [2024-12-02 12:06:57,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:06:57,874 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 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 86 [2024-12-02 12:06:57,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:57,878 INFO L225 Difference]: With dead ends: 1310 [2024-12-02 12:06:57,878 INFO L226 Difference]: Without dead ends: 1309 [2024-12-02 12:06:57,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:06:57,879 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 284 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:57,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 492 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:06:57,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2024-12-02 12:06:58,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 985. [2024-12-02 12:06:58,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 822 states have (on average 1.3941605839416058) internal successors, (1146), 866 states have internal predecessors, (1146), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-12-02 12:06:58,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1378 transitions. [2024-12-02 12:06:58,011 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1378 transitions. Word has length 86 [2024-12-02 12:06:58,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:58,011 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 1378 transitions. [2024-12-02 12:06:58,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 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) [2024-12-02 12:06:58,012 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1378 transitions. [2024-12-02 12:06:58,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 12:06:58,012 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:58,012 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:58,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-12-02 12:06:58,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2024-12-02 12:06:58,213 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:06:58,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:58,213 INFO L85 PathProgramCache]: Analyzing trace with hash 644701283, now seen corresponding path program 1 times [2024-12-02 12:06:58,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:06:58,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897787186] [2024-12-02 12:06:58,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:58,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:06:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:06:58,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1111878536] [2024-12-02 12:06:58,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:58,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:06:58,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:06:58,224 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:06:58,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-12-02 12:06:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:58,276 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 12:06:58,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:58,783 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 12:06:58,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:03,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:07:03,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897787186] [2024-12-02 12:07:03,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:07:03,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111878536] [2024-12-02 12:07:03,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111878536] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:07:03,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:07:03,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-12-02 12:07:03,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944928549] [2024-12-02 12:07:03,444 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:07:03,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 12:07:03,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:03,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 12:07:03,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=277, Unknown=1, NotChecked=0, Total=342 [2024-12-02 12:07:03,444 INFO L87 Difference]: Start difference. First operand 985 states and 1378 transitions. Second operand has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:07:04,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:07:04,751 INFO L93 Difference]: Finished difference Result 1108 states and 1516 transitions. [2024-12-02 12:07:04,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 12:07:04,751 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2024-12-02 12:07:04,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:07:04,754 INFO L225 Difference]: With dead ends: 1108 [2024-12-02 12:07:04,754 INFO L226 Difference]: Without dead ends: 1106 [2024-12-02 12:07:04,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=164, Invalid=647, Unknown=1, NotChecked=0, Total=812 [2024-12-02 12:07:04,755 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 440 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:07:04,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 762 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:07:04,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2024-12-02 12:07:04,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 986. [2024-12-02 12:07:04,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 823 states have (on average 1.3863912515188335) internal successors, (1141), 867 states have internal predecessors, (1141), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-12-02 12:07:04,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1373 transitions. [2024-12-02 12:07:04,886 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1373 transitions. Word has length 86 [2024-12-02 12:07:04,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:07:04,886 INFO L471 AbstractCegarLoop]: Abstraction has 986 states and 1373 transitions. [2024-12-02 12:07:04,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:07:04,887 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1373 transitions. [2024-12-02 12:07:04,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 12:07:04,887 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:07:04,887 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:07:04,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-12-02 12:07:05,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-12-02 12:07:05,088 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:07:05,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:07:05,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1645021571, now seen corresponding path program 1 times [2024-12-02 12:07:05,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:07:05,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405139077] [2024-12-02 12:07:05,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:05,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:07:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-02 12:07:05,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:07:05,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405139077] [2024-12-02 12:07:05,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405139077] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:07:05,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645420736] [2024-12-02 12:07:05,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:05,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:05,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:07:05,174 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:07:05,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-12-02 12:07:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:05,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 12:07:05,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:07:05,305 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-02 12:07:05,305 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:05,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645420736] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:07:05,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:07:05,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-12-02 12:07:05,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764880439] [2024-12-02 12:07:05,450 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:07:05,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:07:05,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:05,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:07:05,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:07:05,450 INFO L87 Difference]: Start difference. First operand 986 states and 1373 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 10 states have internal predecessors, (97), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:07:06,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:07:06,264 INFO L93 Difference]: Finished difference Result 1256 states and 1723 transitions. [2024-12-02 12:07:06,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 12:07:06,264 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 10 states have internal predecessors, (97), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 87 [2024-12-02 12:07:06,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:07:06,267 INFO L225 Difference]: With dead ends: 1256 [2024-12-02 12:07:06,267 INFO L226 Difference]: Without dead ends: 1255 [2024-12-02 12:07:06,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-12-02 12:07:06,267 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 232 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:07:06,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 838 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:07:06,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-12-02 12:07:06,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1167. [2024-12-02 12:07:06,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 982 states have (on average 1.4317718940936863) internal successors, (1406), 1026 states have internal predecessors, (1406), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-12-02 12:07:06,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1682 transitions. [2024-12-02 12:07:06,468 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1682 transitions. Word has length 87 [2024-12-02 12:07:06,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:07:06,468 INFO L471 AbstractCegarLoop]: Abstraction has 1167 states and 1682 transitions. [2024-12-02 12:07:06,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 10 states have internal predecessors, (97), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:07:06,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1682 transitions. [2024-12-02 12:07:06,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 12:07:06,469 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:07:06,469 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:07:06,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-12-02 12:07:06,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-12-02 12:07:06,670 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:07:06,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:07:06,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1489096534, now seen corresponding path program 1 times [2024-12-02 12:07:06,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:07:06,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90930630] [2024-12-02 12:07:06,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:06,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:07:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:07:06,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [288931761] [2024-12-02 12:07:06,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:06,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:06,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:07:06,679 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:07:06,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-12-02 12:07:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:06,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-02 12:07:06,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:07:07,174 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 12:07:07,175 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:07,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:07:07,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90930630] [2024-12-02 12:07:07,376 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:07:07,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288931761] [2024-12-02 12:07:07,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288931761] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:07:07,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:07:07,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-12-02 12:07:07,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560022814] [2024-12-02 12:07:07,377 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:07:07,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:07:07,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:07,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:07:07,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-12-02 12:07:07,377 INFO L87 Difference]: Start difference. First operand 1167 states and 1682 transitions. Second operand has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:07:08,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:07:08,486 INFO L93 Difference]: Finished difference Result 1289 states and 1818 transitions. [2024-12-02 12:07:08,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 12:07:08,487 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2024-12-02 12:07:08,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:07:08,489 INFO L225 Difference]: With dead ends: 1289 [2024-12-02 12:07:08,489 INFO L226 Difference]: Without dead ends: 1287 [2024-12-02 12:07:08,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2024-12-02 12:07:08,490 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 533 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:07:08,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 568 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 12:07:08,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2024-12-02 12:07:08,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1169. [2024-12-02 12:07:08,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 984 states have (on average 1.4308943089430894) internal successors, (1408), 1028 states have internal predecessors, (1408), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-12-02 12:07:08,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1684 transitions. [2024-12-02 12:07:08,634 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1684 transitions. Word has length 87 [2024-12-02 12:07:08,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:07:08,634 INFO L471 AbstractCegarLoop]: Abstraction has 1169 states and 1684 transitions. [2024-12-02 12:07:08,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:07:08,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1684 transitions. [2024-12-02 12:07:08,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 12:07:08,634 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:07:08,634 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:07:08,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-12-02 12:07:08,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-12-02 12:07:08,835 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:07:08,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:07:08,835 INFO L85 PathProgramCache]: Analyzing trace with hash -543938699, now seen corresponding path program 1 times [2024-12-02 12:07:08,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:07:08,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617468391] [2024-12-02 12:07:08,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:08,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:07:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:07:08,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [24022991] [2024-12-02 12:07:08,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:08,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:08,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:07:08,850 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:07:08,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-12-02 12:07:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:08,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 12:07:08,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:07:09,180 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:07:09,180 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:07:17,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:07:17,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617468391] [2024-12-02 12:07:17,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:07:17,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24022991] [2024-12-02 12:07:17,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24022991] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:07:17,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:07:17,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-12-02 12:07:17,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62282202] [2024-12-02 12:07:17,400 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:07:17,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 12:07:17,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:17,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 12:07:17,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=181, Unknown=2, NotChecked=0, Total=240 [2024-12-02 12:07:17,401 INFO L87 Difference]: Start difference. First operand 1169 states and 1684 transitions. Second operand has 16 states, 15 states have (on average 6.6) internal successors, (99), 16 states have internal predecessors, (99), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:07:18,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:07:18,746 INFO L93 Difference]: Finished difference Result 1811 states and 2556 transitions. [2024-12-02 12:07:18,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 12:07:18,747 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.6) internal successors, (99), 16 states have internal predecessors, (99), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 88 [2024-12-02 12:07:18,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:07:18,749 INFO L225 Difference]: With dead ends: 1811 [2024-12-02 12:07:18,749 INFO L226 Difference]: Without dead ends: 1810 [2024-12-02 12:07:18,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=110, Invalid=350, Unknown=2, NotChecked=0, Total=462 [2024-12-02 12:07:18,750 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 910 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:07:18,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 1033 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 12:07:18,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2024-12-02 12:07:18,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1277. [2024-12-02 12:07:18,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 1078 states have (on average 1.4350649350649352) internal successors, (1547), 1122 states have internal predecessors, (1547), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-12-02 12:07:18,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1851 transitions. [2024-12-02 12:07:18,919 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1851 transitions. Word has length 88 [2024-12-02 12:07:18,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:07:18,920 INFO L471 AbstractCegarLoop]: Abstraction has 1277 states and 1851 transitions. [2024-12-02 12:07:18,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.6) internal successors, (99), 16 states have internal predecessors, (99), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:07:18,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1851 transitions. [2024-12-02 12:07:18,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 12:07:18,920 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:07:18,920 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:07:18,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-12-02 12:07:19,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:19,121 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:07:19,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:07:19,121 INFO L85 PathProgramCache]: Analyzing trace with hash 317769669, now seen corresponding path program 1 times [2024-12-02 12:07:19,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:07:19,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139334759] [2024-12-02 12:07:19,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:19,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:07:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:07:19,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [699697456] [2024-12-02 12:07:19,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:19,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:19,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:07:19,132 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:07:19,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-12-02 12:07:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:19,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 12:07:19,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:07:19,766 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:07:19,766 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:19,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:07:19,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139334759] [2024-12-02 12:07:19,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:07:19,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699697456] [2024-12-02 12:07:19,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699697456] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:07:19,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:07:19,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-12-02 12:07:19,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171894424] [2024-12-02 12:07:19,912 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:07:19,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 12:07:19,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:19,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 12:07:19,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:07:19,913 INFO L87 Difference]: Start difference. First operand 1277 states and 1851 transitions. Second operand has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:07:21,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:07:21,237 INFO L93 Difference]: Finished difference Result 1408 states and 1999 transitions. [2024-12-02 12:07:21,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 12:07:21,237 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 89 [2024-12-02 12:07:21,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:07:21,239 INFO L225 Difference]: With dead ends: 1408 [2024-12-02 12:07:21,239 INFO L226 Difference]: Without dead ends: 1407 [2024-12-02 12:07:21,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-12-02 12:07:21,240 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 323 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:07:21,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 781 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 12:07:21,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2024-12-02 12:07:21,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1283. [2024-12-02 12:07:21,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1084 states have (on average 1.4326568265682658) internal successors, (1553), 1128 states have internal predecessors, (1553), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-12-02 12:07:21,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1857 transitions. [2024-12-02 12:07:21,404 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1857 transitions. Word has length 89 [2024-12-02 12:07:21,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:07:21,404 INFO L471 AbstractCegarLoop]: Abstraction has 1283 states and 1857 transitions. [2024-12-02 12:07:21,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:07:21,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1857 transitions. [2024-12-02 12:07:21,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 12:07:21,405 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:07:21,405 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:07:21,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-12-02 12:07:21,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-12-02 12:07:21,605 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:07:21,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:07:21,606 INFO L85 PathProgramCache]: Analyzing trace with hash 493146693, now seen corresponding path program 1 times [2024-12-02 12:07:21,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:07:21,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882793668] [2024-12-02 12:07:21,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:21,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:07:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:07:21,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1405606642] [2024-12-02 12:07:21,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:21,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:21,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:07:21,615 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:07:21,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-12-02 12:07:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:21,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 12:07:21,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:07:22,280 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 12:07:22,280 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:23,029 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 12:07:23,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:07:23,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882793668] [2024-12-02 12:07:23,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:07:23,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405606642] [2024-12-02 12:07:23,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405606642] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:07:23,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:07:23,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2024-12-02 12:07:23,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24334607] [2024-12-02 12:07:23,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:07:23,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 12:07:23,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:23,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 12:07:23,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2024-12-02 12:07:23,030 INFO L87 Difference]: Start difference. First operand 1283 states and 1857 transitions. Second operand has 21 states, 20 states have (on average 5.35) internal successors, (107), 21 states have internal predecessors, (107), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2024-12-02 12:07:29,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:07:29,356 INFO L93 Difference]: Finished difference Result 1410 states and 1993 transitions. [2024-12-02 12:07:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 12:07:29,357 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 5.35) internal successors, (107), 21 states have internal predecessors, (107), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) Word has length 89 [2024-12-02 12:07:29,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:07:29,359 INFO L225 Difference]: With dead ends: 1410 [2024-12-02 12:07:29,359 INFO L226 Difference]: Without dead ends: 1409 [2024-12-02 12:07:29,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=379, Invalid=1427, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 12:07:29,359 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 854 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 2135 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 2135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:07:29,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 563 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 2135 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-12-02 12:07:29,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2024-12-02 12:07:29,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1282. [2024-12-02 12:07:29,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1084 states have (on average 1.4086715867158672) internal successors, (1527), 1127 states have internal predecessors, (1527), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-12-02 12:07:29,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1831 transitions. [2024-12-02 12:07:29,594 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1831 transitions. Word has length 89 [2024-12-02 12:07:29,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:07:29,595 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1831 transitions. [2024-12-02 12:07:29,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 5.35) internal successors, (107), 21 states have internal predecessors, (107), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2024-12-02 12:07:29,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1831 transitions. [2024-12-02 12:07:29,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 12:07:29,595 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:07:29,595 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:07:29,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-12-02 12:07:29,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:29,796 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:07:29,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:07:29,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1260925303, now seen corresponding path program 1 times [2024-12-02 12:07:29,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:07:29,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689568213] [2024-12-02 12:07:29,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:29,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:07:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:07:29,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1343015416] [2024-12-02 12:07:29,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:29,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:29,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:07:29,806 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:07:29,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-12-02 12:07:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:29,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 12:07:29,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:07:30,035 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:07:30,035 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:30,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:07:30,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689568213] [2024-12-02 12:07:30,347 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:07:30,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343015416] [2024-12-02 12:07:30,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343015416] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:07:30,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:07:30,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-12-02 12:07:30,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640495663] [2024-12-02 12:07:30,347 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:07:30,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:07:30,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:30,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:07:30,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:07:30,348 INFO L87 Difference]: Start difference. First operand 1282 states and 1831 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 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) [2024-12-02 12:07:30,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:07:30,982 INFO L93 Difference]: Finished difference Result 1568 states and 2193 transitions. [2024-12-02 12:07:30,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 12:07:30,982 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 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 90 [2024-12-02 12:07:30,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:07:30,984 INFO L225 Difference]: With dead ends: 1568 [2024-12-02 12:07:30,984 INFO L226 Difference]: Without dead ends: 1567 [2024-12-02 12:07:30,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:07:30,985 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 253 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:07:30,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 695 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:07:30,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-12-02 12:07:31,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1294. [2024-12-02 12:07:31,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1096 states have (on average 1.407846715328467) internal successors, (1543), 1139 states have internal predecessors, (1543), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-12-02 12:07:31,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1847 transitions. [2024-12-02 12:07:31,203 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1847 transitions. Word has length 90 [2024-12-02 12:07:31,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:07:31,203 INFO L471 AbstractCegarLoop]: Abstraction has 1294 states and 1847 transitions. [2024-12-02 12:07:31,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 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) [2024-12-02 12:07:31,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1847 transitions. [2024-12-02 12:07:31,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 12:07:31,204 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:07:31,204 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:07:31,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2024-12-02 12:07:31,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-12-02 12:07:31,404 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:07:31,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:07:31,405 INFO L85 PathProgramCache]: Analyzing trace with hash 433978887, now seen corresponding path program 1 times [2024-12-02 12:07:31,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:07:31,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856976123] [2024-12-02 12:07:31,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:31,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:07:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:31,540 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-02 12:07:31,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:07:31,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856976123] [2024-12-02 12:07:31,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856976123] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:07:31,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887717428] [2024-12-02 12:07:31,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:31,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:31,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:07:31,542 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:07:31,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-12-02 12:07:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:31,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 12:07:31,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:07:31,672 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-12-02 12:07:31,672 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:31,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887717428] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:07:31,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:07:31,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-12-02 12:07:31,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479391035] [2024-12-02 12:07:31,836 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:07:31,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:07:31,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:31,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:07:31,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:07:31,836 INFO L87 Difference]: Start difference. First operand 1294 states and 1847 transitions. Second operand has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:07:32,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:07:32,460 INFO L93 Difference]: Finished difference Result 1340 states and 1858 transitions. [2024-12-02 12:07:32,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:07:32,460 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 91 [2024-12-02 12:07:32,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:07:32,463 INFO L225 Difference]: With dead ends: 1340 [2024-12-02 12:07:32,463 INFO L226 Difference]: Without dead ends: 1339 [2024-12-02 12:07:32,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:07:32,464 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 96 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:07:32,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 841 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:07:32,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2024-12-02 12:07:32,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1294. [2024-12-02 12:07:32,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1096 states have (on average 1.4069343065693432) internal successors, (1542), 1139 states have internal predecessors, (1542), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-12-02 12:07:32,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1846 transitions. [2024-12-02 12:07:32,649 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1846 transitions. Word has length 91 [2024-12-02 12:07:32,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:07:32,649 INFO L471 AbstractCegarLoop]: Abstraction has 1294 states and 1846 transitions. [2024-12-02 12:07:32,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:07:32,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1846 transitions. [2024-12-02 12:07:32,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 12:07:32,650 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:07:32,650 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:07:32,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-12-02 12:07:32,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-12-02 12:07:32,850 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:07:32,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:07:32,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2041313426, now seen corresponding path program 1 times [2024-12-02 12:07:32,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:07:32,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089493227] [2024-12-02 12:07:32,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:32,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:07:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:07:32,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [860750173] [2024-12-02 12:07:32,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:32,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:32,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:07:32,861 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:07:32,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-12-02 12:07:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:32,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 12:07:32,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:07:33,361 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:07:33,361 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:33,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:07:33,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089493227] [2024-12-02 12:07:33,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:07:33,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860750173] [2024-12-02 12:07:33,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860750173] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:07:33,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:07:33,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-12-02 12:07:33,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707622966] [2024-12-02 12:07:33,554 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:07:33,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:07:33,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:33,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:07:33,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:07:33,554 INFO L87 Difference]: Start difference. First operand 1294 states and 1846 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 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) [2024-12-02 12:07:34,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:07:34,706 INFO L93 Difference]: Finished difference Result 1411 states and 1979 transitions. [2024-12-02 12:07:34,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:07:34,707 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 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 91 [2024-12-02 12:07:34,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:07:34,709 INFO L225 Difference]: With dead ends: 1411 [2024-12-02 12:07:34,709 INFO L226 Difference]: Without dead ends: 1409 [2024-12-02 12:07:34,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-12-02 12:07:34,710 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 277 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:07:34,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 542 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 12:07:34,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2024-12-02 12:07:34,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1298. [2024-12-02 12:07:34,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1100 states have (on average 1.4054545454545455) internal successors, (1546), 1143 states have internal predecessors, (1546), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-12-02 12:07:34,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1850 transitions. [2024-12-02 12:07:34,929 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1850 transitions. Word has length 91 [2024-12-02 12:07:34,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:07:34,929 INFO L471 AbstractCegarLoop]: Abstraction has 1298 states and 1850 transitions. [2024-12-02 12:07:34,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 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) [2024-12-02 12:07:34,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1850 transitions. [2024-12-02 12:07:34,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 12:07:34,929 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:07:34,929 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:07:34,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-12-02 12:07:35,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-12-02 12:07:35,130 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:07:35,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:07:35,130 INFO L85 PathProgramCache]: Analyzing trace with hash 568443769, now seen corresponding path program 1 times [2024-12-02 12:07:35,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:07:35,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066764394] [2024-12-02 12:07:35,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:35,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:07:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:07:35,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [273458219] [2024-12-02 12:07:35,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:35,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:35,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:07:35,140 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:07:35,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-12-02 12:07:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:35,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 12:07:35,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:07:35,474 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:07:35,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:35,663 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:07:35,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:07:35,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066764394] [2024-12-02 12:07:35,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:07:35,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273458219] [2024-12-02 12:07:35,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273458219] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:07:35,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:07:35,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-12-02 12:07:35,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703921993] [2024-12-02 12:07:35,663 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:07:35,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 12:07:35,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:35,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 12:07:35,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-12-02 12:07:35,664 INFO L87 Difference]: Start difference. First operand 1298 states and 1850 transitions. Second operand has 18 states, 17 states have (on average 6.294117647058823) internal successors, (107), 18 states have internal predecessors, (107), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:07:37,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:07:37,904 INFO L93 Difference]: Finished difference Result 1889 states and 2617 transitions. [2024-12-02 12:07:37,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 12:07:37,904 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.294117647058823) internal successors, (107), 18 states have internal predecessors, (107), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 92 [2024-12-02 12:07:37,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:07:37,907 INFO L225 Difference]: With dead ends: 1889 [2024-12-02 12:07:37,907 INFO L226 Difference]: Without dead ends: 1888 [2024-12-02 12:07:37,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=603, Unknown=0, NotChecked=0, Total=812 [2024-12-02 12:07:37,908 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 1220 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 1517 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:07:37,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1244 Valid, 1471 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1517 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 12:07:37,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2024-12-02 12:07:38,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1341. [2024-12-02 12:07:38,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 1139 states have (on average 1.4108867427568041) internal successors, (1607), 1182 states have internal predecessors, (1607), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-12-02 12:07:38,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1919 transitions. [2024-12-02 12:07:38,109 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1919 transitions. Word has length 92 [2024-12-02 12:07:38,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:07:38,109 INFO L471 AbstractCegarLoop]: Abstraction has 1341 states and 1919 transitions. [2024-12-02 12:07:38,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.294117647058823) internal successors, (107), 18 states have internal predecessors, (107), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:07:38,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1919 transitions. [2024-12-02 12:07:38,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 12:07:38,110 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:07:38,110 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:07:38,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-12-02 12:07:38,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2024-12-02 12:07:38,310 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:07:38,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:07:38,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1097857744, now seen corresponding path program 1 times [2024-12-02 12:07:38,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:07:38,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396735905] [2024-12-02 12:07:38,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:38,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:07:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:07:38,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1259694097] [2024-12-02 12:07:38,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:38,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:38,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:07:38,320 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:07:38,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-12-02 12:07:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:38,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 12:07:38,367 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:07:38,984 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 12:07:38,984 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:52,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:07:52,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396735905] [2024-12-02 12:07:52,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:07:52,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259694097] [2024-12-02 12:07:52,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259694097] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:07:52,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:07:52,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-12-02 12:07:52,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524858249] [2024-12-02 12:07:52,164 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:07:52,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:07:52,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:52,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:07:52,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=208, Unknown=4, NotChecked=0, Total=272 [2024-12-02 12:07:52,165 INFO L87 Difference]: Start difference. First operand 1341 states and 1919 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:07:53,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:07:53,303 INFO L93 Difference]: Finished difference Result 1579 states and 2201 transitions. [2024-12-02 12:07:53,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 12:07:53,303 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-12-02 12:07:53,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:07:53,305 INFO L225 Difference]: With dead ends: 1579 [2024-12-02 12:07:53,305 INFO L226 Difference]: Without dead ends: 1577 [2024-12-02 12:07:53,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=125, Invalid=377, Unknown=4, NotChecked=0, Total=506 [2024-12-02 12:07:53,306 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 422 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:07:53,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 776 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 12:07:53,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2024-12-02 12:07:53,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 1342. [2024-12-02 12:07:53,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1140 states have (on average 1.4096491228070176) internal successors, (1607), 1183 states have internal predecessors, (1607), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-12-02 12:07:53,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1919 transitions. [2024-12-02 12:07:53,500 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1919 transitions. Word has length 93 [2024-12-02 12:07:53,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:07:53,500 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 1919 transitions. [2024-12-02 12:07:53,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:07:53,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1919 transitions. [2024-12-02 12:07:53,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 12:07:53,501 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:07:53,501 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:07:53,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2024-12-02 12:07:53,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:53,702 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:07:53,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:07:53,702 INFO L85 PathProgramCache]: Analyzing trace with hash -921185800, now seen corresponding path program 1 times [2024-12-02 12:07:53,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:07:53,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398653655] [2024-12-02 12:07:53,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:53,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:07:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:53,739 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 12:07:53,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:07:53,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398653655] [2024-12-02 12:07:53,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398653655] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:07:53,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:07:53,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:07:53,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178714843] [2024-12-02 12:07:53,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:07:53,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:07:53,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:53,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:07:53,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:07:53,740 INFO L87 Difference]: Start difference. First operand 1342 states and 1919 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 12:07:54,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:07:54,101 INFO L93 Difference]: Finished difference Result 2415 states and 3494 transitions. [2024-12-02 12:07:54,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:07:54,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 95 [2024-12-02 12:07:54,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:07:54,104 INFO L225 Difference]: With dead ends: 2415 [2024-12-02 12:07:54,104 INFO L226 Difference]: Without dead ends: 1388 [2024-12-02 12:07:54,106 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 [2024-12-02 12:07:54,106 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 18 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:07:54,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 389 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:07:54,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2024-12-02 12:07:54,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1363. [2024-12-02 12:07:54,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1161 states have (on average 1.4056847545219637) internal successors, (1632), 1204 states have internal predecessors, (1632), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-12-02 12:07:54,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1944 transitions. [2024-12-02 12:07:54,438 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1944 transitions. Word has length 95 [2024-12-02 12:07:54,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:07:54,438 INFO L471 AbstractCegarLoop]: Abstraction has 1363 states and 1944 transitions. [2024-12-02 12:07:54,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 12:07:54,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1944 transitions. [2024-12-02 12:07:54,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 12:07:54,439 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:07:54,439 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:07:54,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-12-02 12:07:54,439 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:07:54,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:07:54,439 INFO L85 PathProgramCache]: Analyzing trace with hash 813617101, now seen corresponding path program 1 times [2024-12-02 12:07:54,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:07:54,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966679403] [2024-12-02 12:07:54,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:54,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:07:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:54,530 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:07:54,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:07:54,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966679403] [2024-12-02 12:07:54,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966679403] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:07:54,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833440605] [2024-12-02 12:07:54,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:54,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:54,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:07:54,532 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:07:54,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-12-02 12:07:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:54,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 12:07:54,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:07:54,654 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:07:54,654 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:54,752 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:07:54,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833440605] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:07:54,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:07:54,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2024-12-02 12:07:54,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068245065] [2024-12-02 12:07:54,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:07:54,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:07:54,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:07:54,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:07:54,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:07:54,753 INFO L87 Difference]: Start difference. First operand 1363 states and 1944 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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) [2024-12-02 12:07:55,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:07:55,551 INFO L93 Difference]: Finished difference Result 1888 states and 2663 transitions. [2024-12-02 12:07:55,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 12:07:55,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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 94 [2024-12-02 12:07:55,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:07:55,554 INFO L225 Difference]: With dead ends: 1888 [2024-12-02 12:07:55,555 INFO L226 Difference]: Without dead ends: 1861 [2024-12-02 12:07:55,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 183 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2024-12-02 12:07:55,555 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 544 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:07:55,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1023 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:07:55,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2024-12-02 12:07:55,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1390. [2024-12-02 12:07:55,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1188 states have (on average 1.4074074074074074) internal successors, (1672), 1231 states have internal predecessors, (1672), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-12-02 12:07:55,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1984 transitions. [2024-12-02 12:07:55,909 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1984 transitions. Word has length 94 [2024-12-02 12:07:55,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:07:55,909 INFO L471 AbstractCegarLoop]: Abstraction has 1390 states and 1984 transitions. [2024-12-02 12:07:55,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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) [2024-12-02 12:07:55,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1984 transitions. [2024-12-02 12:07:55,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 12:07:55,910 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:07:55,910 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:07:55,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2024-12-02 12:07:56,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:56,110 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:07:56,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:07:56,111 INFO L85 PathProgramCache]: Analyzing trace with hash -326148117, now seen corresponding path program 1 times [2024-12-02 12:07:56,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:07:56,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331135392] [2024-12-02 12:07:56,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:56,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:07:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:07:56,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1170752351] [2024-12-02 12:07:56,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:56,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:07:56,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:07:56,126 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:07:56,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-12-02 12:07:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:56,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 12:07:56,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:07:56,789 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 12:07:56,789 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:08:10,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:08:10,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331135392] [2024-12-02 12:08:10,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:08:10,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170752351] [2024-12-02 12:08:10,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170752351] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:08:10,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:08:10,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-12-02 12:08:10,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317416540] [2024-12-02 12:08:10,599 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:08:10,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:08:10,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:08:10,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:08:10,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=212, Unknown=4, NotChecked=0, Total=272 [2024-12-02 12:08:10,600 INFO L87 Difference]: Start difference. First operand 1390 states and 1984 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:08:11,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:08:11,754 INFO L93 Difference]: Finished difference Result 1459 states and 2044 transitions. [2024-12-02 12:08:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 12:08:11,754 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 94 [2024-12-02 12:08:11,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:08:11,759 INFO L225 Difference]: With dead ends: 1459 [2024-12-02 12:08:11,759 INFO L226 Difference]: Without dead ends: 1457 [2024-12-02 12:08:11,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=97, Invalid=319, Unknown=4, NotChecked=0, Total=420 [2024-12-02 12:08:11,760 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 325 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:08:11,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 746 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 12:08:11,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-12-02 12:08:12,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1391. [2024-12-02 12:08:12,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 1189 states have (on average 1.4011774600504625) internal successors, (1666), 1232 states have internal predecessors, (1666), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-12-02 12:08:12,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 1978 transitions. [2024-12-02 12:08:12,040 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 1978 transitions. Word has length 94 [2024-12-02 12:08:12,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:08:12,040 INFO L471 AbstractCegarLoop]: Abstraction has 1391 states and 1978 transitions. [2024-12-02 12:08:12,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:08:12,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 1978 transitions. [2024-12-02 12:08:12,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 12:08:12,041 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:08:12,041 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:08:12,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-12-02 12:08:12,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:08:12,241 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:08:12,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:08:12,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1520656846, now seen corresponding path program 1 times [2024-12-02 12:08:12,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:08:12,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591116868] [2024-12-02 12:08:12,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:12,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:08:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:08:12,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590362512] [2024-12-02 12:08:12,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:12,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:08:12,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:08:12,251 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:08:12,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-12-02 12:08:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:08:12,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-12-02 12:08:12,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:08:13,383 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:08:13,384 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:08:14,286 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:08:14,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:08:14,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591116868] [2024-12-02 12:08:14,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:08:14,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590362512] [2024-12-02 12:08:14,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590362512] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:08:14,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:08:14,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-12-02 12:08:14,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555709483] [2024-12-02 12:08:14,287 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:08:14,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 12:08:14,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:08:14,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 12:08:14,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-12-02 12:08:14,288 INFO L87 Difference]: Start difference. First operand 1391 states and 1978 transitions. Second operand has 22 states, 21 states have (on average 5.380952380952381) internal successors, (113), 22 states have internal predecessors, (113), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:08:21,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 12:08:26,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:08:26,336 INFO L93 Difference]: Finished difference Result 1478 states and 2051 transitions. [2024-12-02 12:08:26,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-02 12:08:26,337 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.380952380952381) internal successors, (113), 22 states have internal predecessors, (113), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 95 [2024-12-02 12:08:26,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:08:26,339 INFO L225 Difference]: With dead ends: 1478 [2024-12-02 12:08:26,339 INFO L226 Difference]: Without dead ends: 1476 [2024-12-02 12:08:26,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=489, Invalid=1863, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 12:08:26,340 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 800 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 121 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 2382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:08:26,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 528 Invalid, 2382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 2260 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2024-12-02 12:08:26,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2024-12-02 12:08:26,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1392. [2024-12-02 12:08:26,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1190 states have (on average 1.3949579831932772) internal successors, (1660), 1233 states have internal predecessors, (1660), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-12-02 12:08:26,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1972 transitions. [2024-12-02 12:08:26,642 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1972 transitions. Word has length 95 [2024-12-02 12:08:26,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:08:26,642 INFO L471 AbstractCegarLoop]: Abstraction has 1392 states and 1972 transitions. [2024-12-02 12:08:26,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.380952380952381) internal successors, (113), 22 states have internal predecessors, (113), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:08:26,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1972 transitions. [2024-12-02 12:08:26,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 12:08:26,642 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:08:26,642 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:08:26,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-12-02 12:08:26,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:08:26,843 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:08:26,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:08:26,843 INFO L85 PathProgramCache]: Analyzing trace with hash 201951080, now seen corresponding path program 1 times [2024-12-02 12:08:26,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:08:26,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947474715] [2024-12-02 12:08:26,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:26,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:08:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:08:26,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [249928799] [2024-12-02 12:08:26,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:26,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:08:26,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:08:26,855 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:08:26,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-12-02 12:08:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:08:26,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 12:08:26,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:08:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 12:08:27,460 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:08:27,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:08:27,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947474715] [2024-12-02 12:08:27,736 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:08:27,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249928799] [2024-12-02 12:08:27,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249928799] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:08:27,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:08:27,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-12-02 12:08:27,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448196400] [2024-12-02 12:08:27,736 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:08:27,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 12:08:27,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:08:27,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 12:08:27,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-12-02 12:08:27,737 INFO L87 Difference]: Start difference. First operand 1392 states and 1972 transitions. Second operand has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:08:29,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:08:29,062 INFO L93 Difference]: Finished difference Result 1620 states and 2286 transitions. [2024-12-02 12:08:29,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 12:08:29,063 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 96 [2024-12-02 12:08:29,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:08:29,065 INFO L225 Difference]: With dead ends: 1620 [2024-12-02 12:08:29,065 INFO L226 Difference]: Without dead ends: 1619 [2024-12-02 12:08:29,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2024-12-02 12:08:29,065 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 479 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:08:29,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 1033 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:08:29,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2024-12-02 12:08:29,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1556. [2024-12-02 12:08:29,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1332 states have (on average 1.4166666666666667) internal successors, (1887), 1375 states have internal predecessors, (1887), 178 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-12-02 12:08:29,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2243 transitions. [2024-12-02 12:08:29,341 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2243 transitions. Word has length 96 [2024-12-02 12:08:29,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:08:29,341 INFO L471 AbstractCegarLoop]: Abstraction has 1556 states and 2243 transitions. [2024-12-02 12:08:29,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:08:29,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2243 transitions. [2024-12-02 12:08:29,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 12:08:29,342 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:08:29,342 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:08:29,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-12-02 12:08:29,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-12-02 12:08:29,543 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:08:29,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:08:29,543 INFO L85 PathProgramCache]: Analyzing trace with hash 104278221, now seen corresponding path program 1 times [2024-12-02 12:08:29,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:08:29,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11826123] [2024-12-02 12:08:29,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:29,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:08:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:08:29,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [213050103] [2024-12-02 12:08:29,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:29,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:08:29,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:08:29,556 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:08:29,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-12-02 12:08:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:08:29,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-12-02 12:08:29,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:08:30,600 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:08:30,600 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:08:32,432 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:08:32,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:08:32,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11826123] [2024-12-02 12:08:32,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:08:32,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213050103] [2024-12-02 12:08:32,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213050103] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:08:32,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:08:32,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-12-02 12:08:32,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858934679] [2024-12-02 12:08:32,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:08:32,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 12:08:32,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:08:32,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 12:08:32,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2024-12-02 12:08:32,433 INFO L87 Difference]: Start difference. First operand 1556 states and 2243 transitions. Second operand has 22 states, 21 states have (on average 5.476190476190476) internal successors, (115), 22 states have internal predecessors, (115), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:08:41,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:08:41,932 INFO L93 Difference]: Finished difference Result 1639 states and 2321 transitions. [2024-12-02 12:08:41,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-02 12:08:41,933 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.476190476190476) internal successors, (115), 22 states have internal predecessors, (115), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 96 [2024-12-02 12:08:41,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:08:41,935 INFO L225 Difference]: With dead ends: 1639 [2024-12-02 12:08:41,936 INFO L226 Difference]: Without dead ends: 1624 [2024-12-02 12:08:41,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=346, Invalid=1376, Unknown=0, NotChecked=0, Total=1722 [2024-12-02 12:08:41,936 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 685 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 2537 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 2651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 2537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:08:41,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 708 Invalid, 2651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 2537 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-12-02 12:08:41,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2024-12-02 12:08:42,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 1543. [2024-12-02 12:08:42,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1319 states have (on average 1.4200151630022744) internal successors, (1873), 1362 states have internal predecessors, (1873), 178 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-12-02 12:08:42,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2229 transitions. [2024-12-02 12:08:42,239 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2229 transitions. Word has length 96 [2024-12-02 12:08:42,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:08:42,239 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 2229 transitions. [2024-12-02 12:08:42,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.476190476190476) internal successors, (115), 22 states have internal predecessors, (115), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:08:42,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2229 transitions. [2024-12-02 12:08:42,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 12:08:42,239 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:08:42,239 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:08:42,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2024-12-02 12:08:42,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2024-12-02 12:08:42,440 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:08:42,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:08:42,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1965516262, now seen corresponding path program 1 times [2024-12-02 12:08:42,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:08:42,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896805989] [2024-12-02 12:08:42,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:42,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:08:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:08:42,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1158063882] [2024-12-02 12:08:42,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:42,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:08:42,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:08:42,450 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:08:42,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-12-02 12:08:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:08:42,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 12:08:42,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:08:43,002 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 12:08:43,002 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:08:43,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:08:43,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896805989] [2024-12-02 12:08:43,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:08:43,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158063882] [2024-12-02 12:08:43,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158063882] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:08:43,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:08:43,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-12-02 12:08:43,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555133409] [2024-12-02 12:08:43,135 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:08:43,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 12:08:43,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:08:43,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 12:08:43,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-12-02 12:08:43,136 INFO L87 Difference]: Start difference. First operand 1543 states and 2229 transitions. Second operand has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 14 states have internal predecessors, (66), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:08:44,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:08:44,525 INFO L93 Difference]: Finished difference Result 1599 states and 2249 transitions. [2024-12-02 12:08:44,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 12:08:44,526 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 14 states have internal predecessors, (66), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 97 [2024-12-02 12:08:44,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:08:44,528 INFO L225 Difference]: With dead ends: 1599 [2024-12-02 12:08:44,528 INFO L226 Difference]: Without dead ends: 1598 [2024-12-02 12:08:44,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-12-02 12:08:44,528 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 469 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:08:44,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1125 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:08:44,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2024-12-02 12:08:44,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1543. [2024-12-02 12:08:44,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1319 states have (on average 1.4154662623199394) internal successors, (1867), 1362 states have internal predecessors, (1867), 178 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-12-02 12:08:44,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2223 transitions. [2024-12-02 12:08:44,832 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2223 transitions. Word has length 97 [2024-12-02 12:08:44,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:08:44,832 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 2223 transitions. [2024-12-02 12:08:44,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 14 states have internal predecessors, (66), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:08:44,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2223 transitions. [2024-12-02 12:08:44,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 12:08:44,832 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:08:44,833 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:08:44,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-12-02 12:08:45,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-12-02 12:08:45,033 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:08:45,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:08:45,033 INFO L85 PathProgramCache]: Analyzing trace with hash 801462058, now seen corresponding path program 1 times [2024-12-02 12:08:45,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:08:45,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687614029] [2024-12-02 12:08:45,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:45,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:08:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:08:45,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1739998302] [2024-12-02 12:08:45,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:45,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:08:45,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:08:45,043 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:08:45,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-12-02 12:08:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:08:45,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 12:08:45,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:08:45,587 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 12:08:45,587 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:08:45,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:08:45,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687614029] [2024-12-02 12:08:45,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:08:45,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739998302] [2024-12-02 12:08:45,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739998302] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:08:45,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:08:45,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-12-02 12:08:45,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264643109] [2024-12-02 12:08:45,857 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:08:45,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 12:08:45,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:08:45,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 12:08:45,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-12-02 12:08:45,858 INFO L87 Difference]: Start difference. First operand 1543 states and 2223 transitions. Second operand has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:08:47,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:08:47,189 INFO L93 Difference]: Finished difference Result 1599 states and 2243 transitions. [2024-12-02 12:08:47,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 12:08:47,190 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 98 [2024-12-02 12:08:47,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:08:47,192 INFO L225 Difference]: With dead ends: 1599 [2024-12-02 12:08:47,192 INFO L226 Difference]: Without dead ends: 1598 [2024-12-02 12:08:47,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2024-12-02 12:08:47,193 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 469 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:08:47,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1040 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 12:08:47,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2024-12-02 12:08:47,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1543. [2024-12-02 12:08:47,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1319 states have (on average 1.4109173616376043) internal successors, (1861), 1362 states have internal predecessors, (1861), 178 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-12-02 12:08:47,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2217 transitions. [2024-12-02 12:08:47,609 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2217 transitions. Word has length 98 [2024-12-02 12:08:47,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:08:47,610 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 2217 transitions. [2024-12-02 12:08:47,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 12:08:47,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2217 transitions. [2024-12-02 12:08:47,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 12:08:47,610 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:08:47,610 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:08:47,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2024-12-02 12:08:47,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:08:47,811 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:08:47,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:08:47,811 INFO L85 PathProgramCache]: Analyzing trace with hash -924479896, now seen corresponding path program 1 times [2024-12-02 12:08:47,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:08:47,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141815587] [2024-12-02 12:08:47,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:47,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:08:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:08:47,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1971036769] [2024-12-02 12:08:47,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:47,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:08:47,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:08:47,823 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:08:47,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-12-02 12:08:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:08:47,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-02 12:08:47,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:08:48,202 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:08:48,202 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:08:52,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:08:52,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141815587] [2024-12-02 12:08:52,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:08:52,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971036769] [2024-12-02 12:08:52,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971036769] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:08:52,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:08:52,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-12-02 12:08:52,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815934674] [2024-12-02 12:08:52,386 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:08:52,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 12:08:52,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:08:52,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 12:08:52,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=176, Unknown=1, NotChecked=0, Total=210 [2024-12-02 12:08:52,387 INFO L87 Difference]: Start difference. First operand 1543 states and 2217 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 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) [2024-12-02 12:08:54,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:08:54,106 INFO L93 Difference]: Finished difference Result 1759 states and 2487 transitions. [2024-12-02 12:08:54,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 12:08:54,107 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 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 99 [2024-12-02 12:08:54,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:08:54,109 INFO L225 Difference]: With dead ends: 1759 [2024-12-02 12:08:54,109 INFO L226 Difference]: Without dead ends: 1753 [2024-12-02 12:08:54,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=77, Invalid=384, Unknown=1, NotChecked=0, Total=462 [2024-12-02 12:08:54,109 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 303 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 1929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:08:54,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 998 Invalid, 1929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 12:08:54,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2024-12-02 12:08:54,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1683. [2024-12-02 12:08:54,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1441 states have (on average 1.412907702984039) internal successors, (2036), 1484 states have internal predecessors, (2036), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-12-02 12:08:54,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2428 transitions. [2024-12-02 12:08:54,443 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2428 transitions. Word has length 99 [2024-12-02 12:08:54,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:08:54,443 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2428 transitions. [2024-12-02 12:08:54,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 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) [2024-12-02 12:08:54,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2428 transitions. [2024-12-02 12:08:54,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 12:08:54,443 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:08:54,444 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:08:54,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2024-12-02 12:08:54,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:08:54,644 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:08:54,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:08:54,644 INFO L85 PathProgramCache]: Analyzing trace with hash -2005944043, now seen corresponding path program 1 times [2024-12-02 12:08:54,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:08:54,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692654972] [2024-12-02 12:08:54,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:54,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:08:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:08:54,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [338917460] [2024-12-02 12:08:54,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:54,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:08:54,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:08:54,654 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:08:54,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-12-02 12:08:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:08:54,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 12:08:54,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:08:55,857 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 12:08:55,857 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:08:57,817 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 12:08:57,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:08:57,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692654972] [2024-12-02 12:08:57,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:08:57,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338917460] [2024-12-02 12:08:57,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338917460] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:08:57,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:08:57,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-12-02 12:08:57,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158263284] [2024-12-02 12:08:57,818 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:08:57,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-12-02 12:08:57,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:08:57,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-12-02 12:08:57,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2024-12-02 12:08:57,819 INFO L87 Difference]: Start difference. First operand 1683 states and 2428 transitions. Second operand has 27 states, 26 states have (on average 4.576923076923077) internal successors, (119), 27 states have internal predecessors, (119), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 12:09:06,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:09:06,989 INFO L93 Difference]: Finished difference Result 1740 states and 2469 transitions. [2024-12-02 12:09:06,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 12:09:06,990 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.576923076923077) internal successors, (119), 27 states have internal predecessors, (119), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) Word has length 100 [2024-12-02 12:09:06,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:09:06,991 INFO L225 Difference]: With dead ends: 1740 [2024-12-02 12:09:06,991 INFO L226 Difference]: Without dead ends: 1739 [2024-12-02 12:09:06,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=382, Invalid=1780, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 12:09:06,992 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 713 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 2733 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 2823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:09:06,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 584 Invalid, 2823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2733 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-12-02 12:09:06,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2024-12-02 12:09:07,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1683. [2024-12-02 12:09:07,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1441 states have (on average 1.4122137404580153) internal successors, (2035), 1484 states have internal predecessors, (2035), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-12-02 12:09:07,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2427 transitions. [2024-12-02 12:09:07,322 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2427 transitions. Word has length 100 [2024-12-02 12:09:07,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:09:07,322 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2427 transitions. [2024-12-02 12:09:07,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.576923076923077) internal successors, (119), 27 states have internal predecessors, (119), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 12:09:07,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2427 transitions. [2024-12-02 12:09:07,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 12:09:07,322 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:09:07,322 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:09:07,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2024-12-02 12:09:07,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:09:07,523 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:09:07,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:09:07,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1434229875, now seen corresponding path program 1 times [2024-12-02 12:09:07,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:09:07,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918314405] [2024-12-02 12:09:07,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:07,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:09:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:09:07,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2008024362] [2024-12-02 12:09:07,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:07,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:09:07,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:09:07,532 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:09:07,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-12-02 12:09:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:09:07,579 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 12:09:07,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:09:07,731 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 12:09:07,731 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:09:07,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:09:07,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918314405] [2024-12-02 12:09:07,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:09:07,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008024362] [2024-12-02 12:09:07,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008024362] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:09:07,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:09:07,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:09:07,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271647297] [2024-12-02 12:09:07,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:09:07,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:09:07,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:09:07,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:09:07,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:09:07,732 INFO L87 Difference]: Start difference. First operand 1683 states and 2427 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 12:09:08,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:09:08,407 INFO L93 Difference]: Finished difference Result 1689 states and 2427 transitions. [2024-12-02 12:09:08,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:09:08,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 103 [2024-12-02 12:09:08,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:09:08,410 INFO L225 Difference]: With dead ends: 1689 [2024-12-02 12:09:08,410 INFO L226 Difference]: Without dead ends: 1688 [2024-12-02 12:09:08,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:09:08,411 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 159 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:09:08,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 368 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:09:08,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2024-12-02 12:09:08,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1683. [2024-12-02 12:09:08,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1441 states have (on average 1.4094378903539209) internal successors, (2031), 1484 states have internal predecessors, (2031), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-12-02 12:09:08,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2423 transitions. [2024-12-02 12:09:08,803 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2423 transitions. Word has length 103 [2024-12-02 12:09:08,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:09:08,804 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2423 transitions. [2024-12-02 12:09:08,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 12:09:08,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2423 transitions. [2024-12-02 12:09:08,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 12:09:08,804 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:09:08,804 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:09:08,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2024-12-02 12:09:09,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:09:09,005 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:09:09,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:09:09,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1560551919, now seen corresponding path program 1 times [2024-12-02 12:09:09,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:09:09,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353944250] [2024-12-02 12:09:09,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:09,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:09:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:09:09,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131921210] [2024-12-02 12:09:09,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:09,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:09:09,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:09:09,016 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:09:09,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-12-02 12:09:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:09:09,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 12:09:09,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:09:09,799 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 3 proven. 32 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 12:09:09,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:09:14,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:09:14,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353944250] [2024-12-02 12:09:14,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:09:14,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131921210] [2024-12-02 12:09:14,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131921210] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:09:14,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:09:14,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-12-02 12:09:14,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979501364] [2024-12-02 12:09:14,529 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:09:14,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 12:09:14,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:09:14,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 12:09:14,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=360, Unknown=2, NotChecked=0, Total=420 [2024-12-02 12:09:14,530 INFO L87 Difference]: Start difference. First operand 1683 states and 2423 transitions. Second operand has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 states have internal predecessors, (70), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-12-02 12:09:16,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:09:16,712 INFO L93 Difference]: Finished difference Result 1739 states and 2457 transitions. [2024-12-02 12:09:16,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 12:09:16,712 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 states have internal predecessors, (70), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 106 [2024-12-02 12:09:16,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:09:16,714 INFO L225 Difference]: With dead ends: 1739 [2024-12-02 12:09:16,714 INFO L226 Difference]: Without dead ends: 1738 [2024-12-02 12:09:16,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=155, Invalid=899, Unknown=2, NotChecked=0, Total=1056 [2024-12-02 12:09:16,715 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 495 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 1968 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 2011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:09:16,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 872 Invalid, 2011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1968 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 12:09:16,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2024-12-02 12:09:17,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1683. [2024-12-02 12:09:17,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1441 states have (on average 1.4052741151977792) internal successors, (2025), 1484 states have internal predecessors, (2025), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-12-02 12:09:17,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2417 transitions. [2024-12-02 12:09:17,045 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2417 transitions. Word has length 106 [2024-12-02 12:09:17,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:09:17,045 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2417 transitions. [2024-12-02 12:09:17,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 states have internal predecessors, (70), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-12-02 12:09:17,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2417 transitions. [2024-12-02 12:09:17,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 12:09:17,046 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:09:17,046 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:09:17,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2024-12-02 12:09:17,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:09:17,246 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:09:17,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:09:17,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1132469322, now seen corresponding path program 1 times [2024-12-02 12:09:17,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:09:17,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636015191] [2024-12-02 12:09:17,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:17,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:09:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:09:17,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [143264753] [2024-12-02 12:09:17,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:17,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:09:17,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:09:17,257 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:09:17,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-12-02 12:09:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:09:17,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 12:09:17,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:09:18,405 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 12:09:18,405 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:09:29,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:09:29,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636015191] [2024-12-02 12:09:29,203 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:09:29,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143264753] [2024-12-02 12:09:29,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143264753] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:09:29,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:09:29,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-12-02 12:09:29,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501047680] [2024-12-02 12:09:29,204 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:09:29,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 12:09:29,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:09:29,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 12:09:29,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=348, Unknown=3, NotChecked=0, Total=420 [2024-12-02 12:09:29,205 INFO L87 Difference]: Start difference. First operand 1683 states and 2417 transitions. Second operand has 16 states, 15 states have (on average 4.733333333333333) internal successors, (71), 16 states have internal predecessors, (71), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-12-02 12:09:31,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:09:31,400 INFO L93 Difference]: Finished difference Result 1745 states and 2451 transitions. [2024-12-02 12:09:31,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 12:09:31,400 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.733333333333333) internal successors, (71), 16 states have internal predecessors, (71), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 107 [2024-12-02 12:09:31,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:09:31,402 INFO L225 Difference]: With dead ends: 1745 [2024-12-02 12:09:31,402 INFO L226 Difference]: Without dead ends: 1744 [2024-12-02 12:09:31,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=126, Invalid=627, Unknown=3, NotChecked=0, Total=756 [2024-12-02 12:09:31,403 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 413 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:09:31,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1164 Invalid, 1859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1834 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 12:09:31,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2024-12-02 12:09:31,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1683. [2024-12-02 12:09:31,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1441 states have (on average 1.4011103400416378) internal successors, (2019), 1484 states have internal predecessors, (2019), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-12-02 12:09:31,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2411 transitions. [2024-12-02 12:09:31,746 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2411 transitions. Word has length 107 [2024-12-02 12:09:31,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:09:31,746 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2411 transitions. [2024-12-02 12:09:31,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.733333333333333) internal successors, (71), 16 states have internal predecessors, (71), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-12-02 12:09:31,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2411 transitions. [2024-12-02 12:09:31,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 12:09:31,746 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:09:31,746 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:09:31,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2024-12-02 12:09:31,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2024-12-02 12:09:31,947 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:09:31,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:09:31,947 INFO L85 PathProgramCache]: Analyzing trace with hash 969286499, now seen corresponding path program 1 times [2024-12-02 12:09:31,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:09:31,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632594762] [2024-12-02 12:09:31,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:31,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:09:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:09:32,016 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 12:09:32,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:09:32,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632594762] [2024-12-02 12:09:32,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632594762] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:09:32,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786177738] [2024-12-02 12:09:32,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:32,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:09:32,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:09:32,018 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:09:32,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-12-02 12:09:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:09:32,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 12:09:32,062 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:09:32,200 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 12:09:32,200 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:09:32,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786177738] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:09:32,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:09:32,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-12-02 12:09:32,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37550235] [2024-12-02 12:09:32,244 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:09:32,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:09:32,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:09:32,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:09:32,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:09:32,245 INFO L87 Difference]: Start difference. First operand 1683 states and 2411 transitions. Second operand has 9 states, 8 states have (on average 11.125) internal successors, (89), 9 states have internal predecessors, (89), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 12:09:33,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:09:33,387 INFO L93 Difference]: Finished difference Result 2602 states and 3725 transitions. [2024-12-02 12:09:33,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 12:09:33,388 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 9 states have internal predecessors, (89), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 108 [2024-12-02 12:09:33,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:09:33,391 INFO L225 Difference]: With dead ends: 2602 [2024-12-02 12:09:33,391 INFO L226 Difference]: Without dead ends: 2601 [2024-12-02 12:09:33,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-12-02 12:09:33,392 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 421 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:09:33,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 884 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:09:33,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2601 states. [2024-12-02 12:09:33,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2601 to 2061. [2024-12-02 12:09:33,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2061 states, 1774 states have (on average 1.4086809470124013) internal successors, (2499), 1817 states have internal predecessors, (2499), 241 states have call successors, (241), 2 states have call predecessors, (241), 2 states have return successors, (241), 241 states have call predecessors, (241), 241 states have call successors, (241) [2024-12-02 12:09:33,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2061 states to 2061 states and 2981 transitions. [2024-12-02 12:09:33,936 INFO L78 Accepts]: Start accepts. Automaton has 2061 states and 2981 transitions. Word has length 108 [2024-12-02 12:09:33,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:09:33,936 INFO L471 AbstractCegarLoop]: Abstraction has 2061 states and 2981 transitions. [2024-12-02 12:09:33,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 9 states have internal predecessors, (89), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 12:09:33,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2061 states and 2981 transitions. [2024-12-02 12:09:33,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 12:09:33,937 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:09:33,937 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:09:33,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2024-12-02 12:09:34,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2024-12-02 12:09:34,137 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:09:34,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:09:34,137 INFO L85 PathProgramCache]: Analyzing trace with hash 775132654, now seen corresponding path program 1 times [2024-12-02 12:09:34,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:09:34,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883979366] [2024-12-02 12:09:34,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:34,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:09:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:09:34,211 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:09:34,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:09:34,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883979366] [2024-12-02 12:09:34,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883979366] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:09:34,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656605345] [2024-12-02 12:09:34,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:34,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:09:34,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:09:34,213 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:09:34,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-12-02 12:09:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:09:34,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 12:09:34,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:09:34,363 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:09:34,364 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:09:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:09:34,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656605345] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:09:34,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:09:34,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-12-02 12:09:34,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336858189] [2024-12-02 12:09:34,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:09:34,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:09:34,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:09:34,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:09:34,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:09:34,541 INFO L87 Difference]: Start difference. First operand 2061 states and 2981 transitions. Second operand has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 10 states have internal predecessors, (104), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-12-02 12:09:35,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:09:35,600 INFO L93 Difference]: Finished difference Result 2211 states and 3155 transitions. [2024-12-02 12:09:35,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:09:35,601 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 10 states have internal predecessors, (104), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 110 [2024-12-02 12:09:35,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:09:35,603 INFO L225 Difference]: With dead ends: 2211 [2024-12-02 12:09:35,603 INFO L226 Difference]: Without dead ends: 2210 [2024-12-02 12:09:35,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2024-12-02 12:09:35,603 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 324 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:09:35,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 509 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:09:35,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2024-12-02 12:09:36,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 2181. [2024-12-02 12:09:36,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 1876 states have (on average 1.3992537313432836) internal successors, (2625), 1919 states have internal predecessors, (2625), 259 states have call successors, (259), 2 states have call predecessors, (259), 2 states have return successors, (259), 259 states have call predecessors, (259), 259 states have call successors, (259) [2024-12-02 12:09:36,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3143 transitions. [2024-12-02 12:09:36,044 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3143 transitions. Word has length 110 [2024-12-02 12:09:36,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:09:36,044 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3143 transitions. [2024-12-02 12:09:36,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 10 states have internal predecessors, (104), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-12-02 12:09:36,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3143 transitions. [2024-12-02 12:09:36,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 12:09:36,044 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:09:36,044 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:09:36,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2024-12-02 12:09:36,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2024-12-02 12:09:36,245 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:09:36,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:09:36,245 INFO L85 PathProgramCache]: Analyzing trace with hash 746810705, now seen corresponding path program 1 times [2024-12-02 12:09:36,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:09:36,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066226304] [2024-12-02 12:09:36,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:36,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:09:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:09:36,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008508420] [2024-12-02 12:09:36,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:36,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:09:36,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:09:36,255 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:09:36,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-12-02 12:09:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:09:36,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 12:09:36,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:09:37,360 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 3 proven. 34 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 12:09:37,360 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:09:41,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:09:41,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066226304] [2024-12-02 12:09:41,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:09:41,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008508420] [2024-12-02 12:09:41,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008508420] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:09:41,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:09:41,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-12-02 12:09:41,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357356274] [2024-12-02 12:09:41,003 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:09:41,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 12:09:41,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:09:41,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 12:09:41,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=368, Unknown=2, NotChecked=0, Total=462 [2024-12-02 12:09:41,003 INFO L87 Difference]: Start difference. First operand 2181 states and 3143 transitions. Second operand has 17 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-12-02 12:09:43,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:09:43,203 INFO L93 Difference]: Finished difference Result 2258 states and 3211 transitions. [2024-12-02 12:09:43,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 12:09:43,204 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 108 [2024-12-02 12:09:43,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:09:43,207 INFO L225 Difference]: With dead ends: 2258 [2024-12-02 12:09:43,207 INFO L226 Difference]: Without dead ends: 2257 [2024-12-02 12:09:43,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=144, Invalid=556, Unknown=2, NotChecked=0, Total=702 [2024-12-02 12:09:43,207 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 377 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 2020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:09:43,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1253 Invalid, 2020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 12:09:43,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2024-12-02 12:09:43,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2181. [2024-12-02 12:09:43,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 1876 states have (on average 1.3987206823027718) internal successors, (2624), 1919 states have internal predecessors, (2624), 259 states have call successors, (259), 2 states have call predecessors, (259), 2 states have return successors, (259), 259 states have call predecessors, (259), 259 states have call successors, (259) [2024-12-02 12:09:43,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3142 transitions. [2024-12-02 12:09:43,647 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3142 transitions. Word has length 108 [2024-12-02 12:09:43,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:09:43,648 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3142 transitions. [2024-12-02 12:09:43,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-12-02 12:09:43,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3142 transitions. [2024-12-02 12:09:43,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 12:09:43,648 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:09:43,648 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:09:43,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-12-02 12:09:43,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:09:43,849 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:09:43,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:09:43,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1740691386, now seen corresponding path program 1 times [2024-12-02 12:09:43,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:09:43,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98743603] [2024-12-02 12:09:43,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:43,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:09:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:09:43,914 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:09:43,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:09:43,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98743603] [2024-12-02 12:09:43,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98743603] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:09:43,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752719326] [2024-12-02 12:09:43,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:43,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:09:43,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:09:43,916 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:09:43,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-12-02 12:09:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:09:43,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 12:09:43,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:09:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:09:44,059 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:09:44,185 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:09:44,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752719326] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:09:44,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:09:44,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2024-12-02 12:09:44,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082012788] [2024-12-02 12:09:44,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:09:44,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 12:09:44,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:09:44,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 12:09:44,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:09:44,187 INFO L87 Difference]: Start difference. First operand 2181 states and 3142 transitions. Second operand has 14 states, 13 states have (on average 10.538461538461538) internal successors, (137), 14 states have internal predecessors, (137), 9 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 9 states have call predecessors, (31), 9 states have call successors, (31) [2024-12-02 12:09:45,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:09:45,873 INFO L93 Difference]: Finished difference Result 2727 states and 3918 transitions. [2024-12-02 12:09:45,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-12-02 12:09:45,873 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.538461538461538) internal successors, (137), 14 states have internal predecessors, (137), 9 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 9 states have call predecessors, (31), 9 states have call successors, (31) Word has length 111 [2024-12-02 12:09:45,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:09:45,878 INFO L225 Difference]: With dead ends: 2727 [2024-12-02 12:09:45,878 INFO L226 Difference]: Without dead ends: 2726 [2024-12-02 12:09:45,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=633, Invalid=1719, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 12:09:45,879 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 1529 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:09:45,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 283 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:09:45,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2024-12-02 12:09:46,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 2607. [2024-12-02 12:09:46,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2607 states, 2240 states have (on average 1.4116071428571428) internal successors, (3162), 2283 states have internal predecessors, (3162), 321 states have call successors, (321), 2 states have call predecessors, (321), 2 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2024-12-02 12:09:46,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2607 states to 2607 states and 3804 transitions. [2024-12-02 12:09:46,521 INFO L78 Accepts]: Start accepts. Automaton has 2607 states and 3804 transitions. Word has length 111 [2024-12-02 12:09:46,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:09:46,521 INFO L471 AbstractCegarLoop]: Abstraction has 2607 states and 3804 transitions. [2024-12-02 12:09:46,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.538461538461538) internal successors, (137), 14 states have internal predecessors, (137), 9 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 9 states have call predecessors, (31), 9 states have call successors, (31) [2024-12-02 12:09:46,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2607 states and 3804 transitions. [2024-12-02 12:09:46,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 12:09:46,522 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:09:46,522 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:09:46,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2024-12-02 12:09:46,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2024-12-02 12:09:46,722 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:09:46,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:09:46,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1676295468, now seen corresponding path program 1 times [2024-12-02 12:09:46,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:09:46,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695366563] [2024-12-02 12:09:46,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:46,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:09:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:09:46,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1423520054] [2024-12-02 12:09:46,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:46,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:09:46,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:09:46,732 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:09:46,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-12-02 12:09:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:09:46,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 12:09:46,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:09:47,802 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 3 proven. 35 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 12:09:47,802 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:09:56,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:09:56,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695366563] [2024-12-02 12:09:56,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:09:56,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423520054] [2024-12-02 12:09:56,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423520054] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:09:56,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:09:56,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-12-02 12:09:56,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979118903] [2024-12-02 12:09:56,940 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:09:56,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 12:09:56,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:09:56,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 12:09:56,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=365, Unknown=2, NotChecked=0, Total=462 [2024-12-02 12:09:56,941 INFO L87 Difference]: Start difference. First operand 2607 states and 3804 transitions. Second operand has 17 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-12-02 12:09:58,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:09:58,819 INFO L93 Difference]: Finished difference Result 2682 states and 3872 transitions. [2024-12-02 12:09:58,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 12:09:58,819 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 109 [2024-12-02 12:09:58,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:09:58,822 INFO L225 Difference]: With dead ends: 2682 [2024-12-02 12:09:58,822 INFO L226 Difference]: Without dead ends: 2681 [2024-12-02 12:09:58,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=150, Invalid=550, Unknown=2, NotChecked=0, Total=702 [2024-12-02 12:09:58,823 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 456 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:09:58,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 897 Invalid, 1548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 12:09:58,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2024-12-02 12:09:59,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2607. [2024-12-02 12:09:59,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2607 states, 2240 states have (on average 1.4080357142857143) internal successors, (3154), 2283 states have internal predecessors, (3154), 321 states have call successors, (321), 2 states have call predecessors, (321), 2 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2024-12-02 12:09:59,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2607 states to 2607 states and 3796 transitions. [2024-12-02 12:09:59,359 INFO L78 Accepts]: Start accepts. Automaton has 2607 states and 3796 transitions. Word has length 109 [2024-12-02 12:09:59,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:09:59,359 INFO L471 AbstractCegarLoop]: Abstraction has 2607 states and 3796 transitions. [2024-12-02 12:09:59,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-12-02 12:09:59,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2607 states and 3796 transitions. [2024-12-02 12:09:59,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 12:09:59,359 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:09:59,359 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:09:59,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2024-12-02 12:09:59,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2024-12-02 12:09:59,560 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:09:59,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:09:59,560 INFO L85 PathProgramCache]: Analyzing trace with hash 425552051, now seen corresponding path program 1 times [2024-12-02 12:09:59,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:09:59,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554842352] [2024-12-02 12:09:59,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:59,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:09:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:09:59,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2130183226] [2024-12-02 12:09:59,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:59,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:09:59,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:09:59,570 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:09:59,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-12-02 12:09:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:09:59,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-12-02 12:09:59,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:10:00,669 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 12:10:00,669 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:10:01,663 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 12:10:01,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:01,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554842352] [2024-12-02 12:10:01,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:10:01,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130183226] [2024-12-02 12:10:01,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130183226] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:10:01,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:10:01,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2024-12-02 12:10:01,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862301332] [2024-12-02 12:10:01,663 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:10:01,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 12:10:01,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:01,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 12:10:01,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=828, Unknown=0, NotChecked=0, Total=930 [2024-12-02 12:10:01,664 INFO L87 Difference]: Start difference. First operand 2607 states and 3796 transitions. Second operand has 31 states, 30 states have (on average 4.6) internal successors, (138), 31 states have internal predecessors, (138), 7 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2024-12-02 12:10:13,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:13,596 INFO L93 Difference]: Finished difference Result 2686 states and 3846 transitions. [2024-12-02 12:10:13,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-12-02 12:10:13,597 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 4.6) internal successors, (138), 31 states have internal predecessors, (138), 7 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) Word has length 110 [2024-12-02 12:10:13,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:13,600 INFO L225 Difference]: With dead ends: 2686 [2024-12-02 12:10:13,600 INFO L226 Difference]: Without dead ends: 2685 [2024-12-02 12:10:13,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=648, Invalid=4608, Unknown=0, NotChecked=0, Total=5256 [2024-12-02 12:10:13,601 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 1088 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 4367 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 4577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 4367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:13,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 1072 Invalid, 4577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 4367 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-12-02 12:10:13,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2024-12-02 12:10:14,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2607. [2024-12-02 12:10:14,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2607 states, 2240 states have (on average 1.3879464285714285) internal successors, (3109), 2283 states have internal predecessors, (3109), 321 states have call successors, (321), 2 states have call predecessors, (321), 2 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2024-12-02 12:10:14,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2607 states to 2607 states and 3751 transitions. [2024-12-02 12:10:14,201 INFO L78 Accepts]: Start accepts. Automaton has 2607 states and 3751 transitions. Word has length 110 [2024-12-02 12:10:14,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:14,202 INFO L471 AbstractCegarLoop]: Abstraction has 2607 states and 3751 transitions. [2024-12-02 12:10:14,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 4.6) internal successors, (138), 31 states have internal predecessors, (138), 7 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2024-12-02 12:10:14,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2607 states and 3751 transitions. [2024-12-02 12:10:14,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 12:10:14,202 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:14,202 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:14,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2024-12-02 12:10:14,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:14,403 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:10:14,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:14,403 INFO L85 PathProgramCache]: Analyzing trace with hash -2062139979, now seen corresponding path program 1 times [2024-12-02 12:10:14,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:14,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233184752] [2024-12-02 12:10:14,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:14,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:10:14,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:14,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233184752] [2024-12-02 12:10:14,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233184752] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:14,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:14,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:10:14,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016439398] [2024-12-02 12:10:14,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:14,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:10:14,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:14,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:10:14,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:10:14,435 INFO L87 Difference]: Start difference. First operand 2607 states and 3751 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:10:15,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:15,174 INFO L93 Difference]: Finished difference Result 2607 states and 3751 transitions. [2024-12-02 12:10:15,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:10:15,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-12-02 12:10:15,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:15,177 INFO L225 Difference]: With dead ends: 2607 [2024-12-02 12:10:15,177 INFO L226 Difference]: Without dead ends: 2606 [2024-12-02 12:10:15,178 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 [2024-12-02 12:10:15,178 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 23 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:15,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 273 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:15,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2024-12-02 12:10:15,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2606. [2024-12-02 12:10:15,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2606 states, 2240 states have (on average 1.3830357142857144) internal successors, (3098), 2282 states have internal predecessors, (3098), 321 states have call successors, (321), 2 states have call predecessors, (321), 2 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2024-12-02 12:10:15,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2606 states to 2606 states and 3740 transitions. [2024-12-02 12:10:15,766 INFO L78 Accepts]: Start accepts. Automaton has 2606 states and 3740 transitions. Word has length 113 [2024-12-02 12:10:15,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:15,766 INFO L471 AbstractCegarLoop]: Abstraction has 2606 states and 3740 transitions. [2024-12-02 12:10:15,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:10:15,766 INFO L276 IsEmpty]: Start isEmpty. Operand 2606 states and 3740 transitions. [2024-12-02 12:10:15,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 12:10:15,767 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:15,767 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:15,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-12-02 12:10:15,767 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:10:15,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:15,767 INFO L85 PathProgramCache]: Analyzing trace with hash 307211790, now seen corresponding path program 2 times [2024-12-02 12:10:15,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:15,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687652262] [2024-12-02 12:10:15,767 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:10:15,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:15,781 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:10:15,781 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 12:10:15,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [311230983] [2024-12-02 12:10:15,782 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:10:15,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:15,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:10:15,783 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:10:15,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-12-02 12:10:15,838 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:10:15,838 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:10:15,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-02 12:10:15,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:10:16,512 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-12-02 12:10:16,512 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:10:16,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:16,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687652262] [2024-12-02 12:10:16,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:10:16,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311230983] [2024-12-02 12:10:16,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311230983] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:10:16,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:10:16,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-12-02 12:10:16,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354955638] [2024-12-02 12:10:16,677 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:10:16,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 12:10:16,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:16,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 12:10:16,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:10:16,678 INFO L87 Difference]: Start difference. First operand 2606 states and 3740 transitions. Second operand has 14 states, 13 states have (on average 5.538461538461538) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-12-02 12:10:18,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:18,801 INFO L93 Difference]: Finished difference Result 2666 states and 3780 transitions. [2024-12-02 12:10:18,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 12:10:18,802 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.538461538461538) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 111 [2024-12-02 12:10:18,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:18,804 INFO L225 Difference]: With dead ends: 2666 [2024-12-02 12:10:18,804 INFO L226 Difference]: Without dead ends: 2665 [2024-12-02 12:10:18,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2024-12-02 12:10:18,805 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 344 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:18,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1059 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 12:10:18,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2024-12-02 12:10:19,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2606. [2024-12-02 12:10:19,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2606 states, 2240 states have (on average 1.3825892857142856) internal successors, (3097), 2282 states have internal predecessors, (3097), 321 states have call successors, (321), 2 states have call predecessors, (321), 2 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2024-12-02 12:10:19,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2606 states to 2606 states and 3739 transitions. [2024-12-02 12:10:19,396 INFO L78 Accepts]: Start accepts. Automaton has 2606 states and 3739 transitions. Word has length 111 [2024-12-02 12:10:19,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:19,396 INFO L471 AbstractCegarLoop]: Abstraction has 2606 states and 3739 transitions. [2024-12-02 12:10:19,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.538461538461538) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-12-02 12:10:19,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2606 states and 3739 transitions. [2024-12-02 12:10:19,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 12:10:19,397 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:19,397 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:19,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2024-12-02 12:10:19,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:19,597 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:10:19,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:19,598 INFO L85 PathProgramCache]: Analyzing trace with hash 498171797, now seen corresponding path program 1 times [2024-12-02 12:10:19,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:19,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141686802] [2024-12-02 12:10:19,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:19,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:19,633 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:10:19,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:19,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141686802] [2024-12-02 12:10:19,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141686802] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:10:19,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061939609] [2024-12-02 12:10:19,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:19,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:19,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:10:19,635 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:10:19,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2024-12-02 12:10:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:19,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:10:19,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:10:19,739 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:10:19,739 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:10:19,837 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:10:19,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061939609] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:10:19,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:10:19,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-12-02 12:10:19,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109780640] [2024-12-02 12:10:19,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:10:19,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:10:19,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:19,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:10:19,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:10:19,838 INFO L87 Difference]: Start difference. First operand 2606 states and 3739 transitions. Second operand has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 7 states have internal predecessors, (133), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 12:10:20,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:20,692 INFO L93 Difference]: Finished difference Result 3467 states and 4952 transitions. [2024-12-02 12:10:20,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:10:20,693 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 7 states have internal predecessors, (133), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 114 [2024-12-02 12:10:20,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:20,697 INFO L225 Difference]: With dead ends: 3467 [2024-12-02 12:10:20,697 INFO L226 Difference]: Without dead ends: 3466 [2024-12-02 12:10:20,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:10:20,698 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 104 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:20,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 434 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:10:20,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3466 states. [2024-12-02 12:10:21,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3466 to 3322. [2024-12-02 12:10:21,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3322 states, 2861 states have (on average 1.3729465221950368) internal successors, (3928), 2903 states have internal predecessors, (3928), 416 states have call successors, (416), 2 states have call predecessors, (416), 2 states have return successors, (416), 416 states have call predecessors, (416), 416 states have call successors, (416) [2024-12-02 12:10:21,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3322 states to 3322 states and 4760 transitions. [2024-12-02 12:10:21,474 INFO L78 Accepts]: Start accepts. Automaton has 3322 states and 4760 transitions. Word has length 114 [2024-12-02 12:10:21,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:21,474 INFO L471 AbstractCegarLoop]: Abstraction has 3322 states and 4760 transitions. [2024-12-02 12:10:21,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 7 states have internal predecessors, (133), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 12:10:21,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3322 states and 4760 transitions. [2024-12-02 12:10:21,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 12:10:21,475 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:21,475 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:21,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2024-12-02 12:10:21,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable83 [2024-12-02 12:10:21,675 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:10:21,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:21,676 INFO L85 PathProgramCache]: Analyzing trace with hash -898070728, now seen corresponding path program 1 times [2024-12-02 12:10:21,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:21,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333132258] [2024-12-02 12:10:21,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:21,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:10:21,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [416308890] [2024-12-02 12:10:21,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:21,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:21,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:10:21,690 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:10:21,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2024-12-02 12:10:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:21,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 12:10:21,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:10:21,863 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 12:10:21,863 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:10:22,024 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 12:10:22,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:22,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333132258] [2024-12-02 12:10:22,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:10:22,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416308890] [2024-12-02 12:10:22,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416308890] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:10:22,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:10:22,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-12-02 12:10:22,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279270972] [2024-12-02 12:10:22,025 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:10:22,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:10:22,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:22,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:10:22,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:10:22,026 INFO L87 Difference]: Start difference. First operand 3322 states and 4760 transitions. Second operand has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 10 states have internal predecessors, (121), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 12:10:23,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:23,895 INFO L93 Difference]: Finished difference Result 4067 states and 5822 transitions. [2024-12-02 12:10:23,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-12-02 12:10:23,896 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 10 states have internal predecessors, (121), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 115 [2024-12-02 12:10:23,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:23,899 INFO L225 Difference]: With dead ends: 4067 [2024-12-02 12:10:23,900 INFO L226 Difference]: Without dead ends: 4066 [2024-12-02 12:10:23,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=387, Invalid=1095, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 12:10:23,900 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 605 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:23,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 944 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:10:23,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4066 states. [2024-12-02 12:10:24,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4066 to 3944. [2024-12-02 12:10:24,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3944 states, 3399 states have (on average 1.3918799646954987) internal successors, (4731), 3441 states have internal predecessors, (4731), 500 states have call successors, (500), 2 states have call predecessors, (500), 2 states have return successors, (500), 500 states have call predecessors, (500), 500 states have call successors, (500) [2024-12-02 12:10:24,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 5731 transitions. [2024-12-02 12:10:24,815 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 5731 transitions. Word has length 115 [2024-12-02 12:10:24,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:24,815 INFO L471 AbstractCegarLoop]: Abstraction has 3944 states and 5731 transitions. [2024-12-02 12:10:24,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 10 states have internal predecessors, (121), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 12:10:24,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 5731 transitions. [2024-12-02 12:10:24,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 12:10:24,816 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:24,816 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:24,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2024-12-02 12:10:25,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2024-12-02 12:10:25,017 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:10:25,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:25,017 INFO L85 PathProgramCache]: Analyzing trace with hash 2000222709, now seen corresponding path program 1 times [2024-12-02 12:10:25,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:25,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513905224] [2024-12-02 12:10:25,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:25,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:25,074 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:10:25,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:25,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513905224] [2024-12-02 12:10:25,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513905224] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:10:25,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594716782] [2024-12-02 12:10:25,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:25,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:25,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:10:25,076 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:10:25,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2024-12-02 12:10:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:25,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 12:10:25,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:10:25,300 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:10:25,300 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:10:25,438 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:10:25,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594716782] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:10:25,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:10:25,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-12-02 12:10:25,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773789594] [2024-12-02 12:10:25,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:10:25,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 12:10:25,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:25,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 12:10:25,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:10:25,440 INFO L87 Difference]: Start difference. First operand 3944 states and 5731 transitions. Second operand has 11 states, 10 states have (on average 16.6) internal successors, (166), 11 states have internal predecessors, (166), 7 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-12-02 12:10:27,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:27,042 INFO L93 Difference]: Finished difference Result 6022 states and 8800 transitions. [2024-12-02 12:10:27,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:10:27,043 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.6) internal successors, (166), 11 states have internal predecessors, (166), 7 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 116 [2024-12-02 12:10:27,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:27,048 INFO L225 Difference]: With dead ends: 6022 [2024-12-02 12:10:27,048 INFO L226 Difference]: Without dead ends: 6021 [2024-12-02 12:10:27,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:10:27,049 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 479 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:27,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 565 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:10:27,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2024-12-02 12:10:28,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 4720. [2024-12-02 12:10:28,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4720 states, 4079 states have (on average 1.3878401569012013) internal successors, (5661), 4121 states have internal predecessors, (5661), 596 states have call successors, (596), 2 states have call predecessors, (596), 2 states have return successors, (596), 596 states have call predecessors, (596), 596 states have call successors, (596) [2024-12-02 12:10:28,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4720 states to 4720 states and 6853 transitions. [2024-12-02 12:10:28,287 INFO L78 Accepts]: Start accepts. Automaton has 4720 states and 6853 transitions. Word has length 116 [2024-12-02 12:10:28,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:28,287 INFO L471 AbstractCegarLoop]: Abstraction has 4720 states and 6853 transitions. [2024-12-02 12:10:28,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.6) internal successors, (166), 11 states have internal predecessors, (166), 7 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-12-02 12:10:28,287 INFO L276 IsEmpty]: Start isEmpty. Operand 4720 states and 6853 transitions. [2024-12-02 12:10:28,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 12:10:28,288 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:28,288 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:28,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2024-12-02 12:10:28,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2024-12-02 12:10:28,489 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:10:28,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:28,489 INFO L85 PathProgramCache]: Analyzing trace with hash -64752759, now seen corresponding path program 1 times [2024-12-02 12:10:28,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:28,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304239554] [2024-12-02 12:10:28,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:28,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:28,553 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:10:28,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:28,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304239554] [2024-12-02 12:10:28,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304239554] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:10:28,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812553838] [2024-12-02 12:10:28,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:28,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:28,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:10:28,555 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:10:28,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2024-12-02 12:10:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:28,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:10:28,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:10:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:10:28,687 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:10:28,831 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:10:28,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812553838] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:10:28,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:10:28,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-12-02 12:10:28,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280660805] [2024-12-02 12:10:28,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:10:28,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:10:28,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:28,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:10:28,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:10:28,832 INFO L87 Difference]: Start difference. First operand 4720 states and 6853 transitions. Second operand has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-12-02 12:10:31,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:31,078 INFO L93 Difference]: Finished difference Result 6800 states and 9835 transitions. [2024-12-02 12:10:31,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-12-02 12:10:31,079 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 122 [2024-12-02 12:10:31,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:31,086 INFO L225 Difference]: With dead ends: 6800 [2024-12-02 12:10:31,086 INFO L226 Difference]: Without dead ends: 6799 [2024-12-02 12:10:31,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2024-12-02 12:10:31,087 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 580 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:31,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1254 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:10:31,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6799 states. [2024-12-02 12:10:32,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6799 to 6339. [2024-12-02 12:10:32,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6339 states, 5502 states have (on average 1.396401308615049) internal successors, (7683), 5544 states have internal predecessors, (7683), 792 states have call successors, (792), 2 states have call predecessors, (792), 2 states have return successors, (792), 792 states have call predecessors, (792), 792 states have call successors, (792) [2024-12-02 12:10:32,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6339 states to 6339 states and 9267 transitions. [2024-12-02 12:10:32,589 INFO L78 Accepts]: Start accepts. Automaton has 6339 states and 9267 transitions. Word has length 122 [2024-12-02 12:10:32,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:32,589 INFO L471 AbstractCegarLoop]: Abstraction has 6339 states and 9267 transitions. [2024-12-02 12:10:32,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-12-02 12:10:32,589 INFO L276 IsEmpty]: Start isEmpty. Operand 6339 states and 9267 transitions. [2024-12-02 12:10:32,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 12:10:32,590 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:32,590 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:32,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2024-12-02 12:10:32,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:32,790 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:10:32,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:32,791 INFO L85 PathProgramCache]: Analyzing trace with hash 541591117, now seen corresponding path program 1 times [2024-12-02 12:10:32,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:32,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840403023] [2024-12-02 12:10:32,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:32,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:10:32,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [565654703] [2024-12-02 12:10:32,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:32,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:32,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:10:32,802 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:10:32,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-12-02 12:10:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:32,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 12:10:32,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:10:33,175 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:10:33,175 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:10:33,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:33,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840403023] [2024-12-02 12:10:33,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:10:33,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565654703] [2024-12-02 12:10:33,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565654703] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:10:33,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:10:33,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-12-02 12:10:33,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639349127] [2024-12-02 12:10:33,368 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:10:33,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:10:33,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:33,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:10:33,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:10:33,369 INFO L87 Difference]: Start difference. First operand 6339 states and 9267 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:10:35,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:35,288 INFO L93 Difference]: Finished difference Result 6520 states and 9484 transitions. [2024-12-02 12:10:35,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:10:35,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 124 [2024-12-02 12:10:35,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:35,294 INFO L225 Difference]: With dead ends: 6520 [2024-12-02 12:10:35,295 INFO L226 Difference]: Without dead ends: 6519 [2024-12-02 12:10:35,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:10:35,296 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 176 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:35,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 433 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:10:35,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6519 states. [2024-12-02 12:10:36,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6519 to 6346. [2024-12-02 12:10:36,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6346 states, 5509 states have (on average 1.3958976220729715) internal successors, (7690), 5551 states have internal predecessors, (7690), 792 states have call successors, (792), 2 states have call predecessors, (792), 2 states have return successors, (792), 792 states have call predecessors, (792), 792 states have call successors, (792) [2024-12-02 12:10:36,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6346 states to 6346 states and 9274 transitions. [2024-12-02 12:10:36,778 INFO L78 Accepts]: Start accepts. Automaton has 6346 states and 9274 transitions. Word has length 124 [2024-12-02 12:10:36,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:36,778 INFO L471 AbstractCegarLoop]: Abstraction has 6346 states and 9274 transitions. [2024-12-02 12:10:36,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:10:36,778 INFO L276 IsEmpty]: Start isEmpty. Operand 6346 states and 9274 transitions. [2024-12-02 12:10:36,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 12:10:36,778 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:36,779 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:36,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2024-12-02 12:10:36,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:36,979 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:10:36,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:36,979 INFO L85 PathProgramCache]: Analyzing trace with hash 795902405, now seen corresponding path program 1 times [2024-12-02 12:10:36,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:36,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799316927] [2024-12-02 12:10:36,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:36,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:10:36,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1614637298] [2024-12-02 12:10:36,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:36,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:36,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:10:36,990 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:10:36,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2024-12-02 12:10:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:37,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 12:10:37,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:10:38,282 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-12-02 12:10:38,283 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:10:46,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:46,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799316927] [2024-12-02 12:10:46,597 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:10:46,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614637298] [2024-12-02 12:10:46,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614637298] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:10:46,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:10:46,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-12-02 12:10:46,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5410345] [2024-12-02 12:10:46,597 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:10:46,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 12:10:46,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:46,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 12:10:46,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=258, Unknown=2, NotChecked=0, Total=342 [2024-12-02 12:10:46,598 INFO L87 Difference]: Start difference. First operand 6346 states and 9274 transitions. Second operand has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:10:49,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:49,682 INFO L93 Difference]: Finished difference Result 7964 states and 11498 transitions. [2024-12-02 12:10:49,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 12:10:49,683 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 130 [2024-12-02 12:10:49,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:49,691 INFO L225 Difference]: With dead ends: 7964 [2024-12-02 12:10:49,691 INFO L226 Difference]: Without dead ends: 7962 [2024-12-02 12:10:49,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=179, Invalid=521, Unknown=2, NotChecked=0, Total=702 [2024-12-02 12:10:49,693 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 473 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:49,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1090 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 12:10:49,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7962 states. [2024-12-02 12:10:51,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7962 to 7772. [2024-12-02 12:10:51,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7772 states, 6751 states have (on average 1.3783143238038809) internal successors, (9305), 6793 states have internal predecessors, (9305), 976 states have call successors, (976), 2 states have call predecessors, (976), 2 states have return successors, (976), 976 states have call predecessors, (976), 976 states have call successors, (976) [2024-12-02 12:10:51,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7772 states to 7772 states and 11257 transitions. [2024-12-02 12:10:51,537 INFO L78 Accepts]: Start accepts. Automaton has 7772 states and 11257 transitions. Word has length 130 [2024-12-02 12:10:51,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:51,537 INFO L471 AbstractCegarLoop]: Abstraction has 7772 states and 11257 transitions. [2024-12-02 12:10:51,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:10:51,537 INFO L276 IsEmpty]: Start isEmpty. Operand 7772 states and 11257 transitions. [2024-12-02 12:10:51,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 12:10:51,538 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:51,538 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 12:10:51,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2024-12-02 12:10:51,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:51,738 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:10:51,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:51,738 INFO L85 PathProgramCache]: Analyzing trace with hash -858516542, now seen corresponding path program 1 times [2024-12-02 12:10:51,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:51,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347374405] [2024-12-02 12:10:51,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:51,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:10:51,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [981055644] [2024-12-02 12:10:51,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:51,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:51,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:10:51,749 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:10:51,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2024-12-02 12:10:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:51,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-02 12:10:51,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:10:52,717 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 35 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-12-02 12:10:52,717 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:10:53,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:53,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347374405] [2024-12-02 12:10:53,085 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:10:53,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981055644] [2024-12-02 12:10:53,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981055644] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:10:53,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:10:53,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-12-02 12:10:53,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941151101] [2024-12-02 12:10:53,085 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:10:53,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 12:10:53,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:53,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 12:10:53,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2024-12-02 12:10:53,086 INFO L87 Difference]: Start difference. First operand 7772 states and 11257 transitions. Second operand has 16 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:10:56,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:56,499 INFO L93 Difference]: Finished difference Result 8815 states and 12714 transitions. [2024-12-02 12:10:56,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 12:10:56,499 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 131 [2024-12-02 12:10:56,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:56,507 INFO L225 Difference]: With dead ends: 8815 [2024-12-02 12:10:56,508 INFO L226 Difference]: Without dead ends: 8813 [2024-12-02 12:10:56,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 12:10:56,509 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 527 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:56,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 928 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 12:10:56,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8813 states. [2024-12-02 12:10:58,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8813 to 6599. [2024-12-02 12:10:58,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6599 states, 5734 states have (on average 1.382281130101151) internal successors, (7926), 5776 states have internal predecessors, (7926), 820 states have call successors, (820), 2 states have call predecessors, (820), 2 states have return successors, (820), 820 states have call predecessors, (820), 820 states have call successors, (820) [2024-12-02 12:10:58,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6599 states to 6599 states and 9566 transitions. [2024-12-02 12:10:58,073 INFO L78 Accepts]: Start accepts. Automaton has 6599 states and 9566 transitions. Word has length 131 [2024-12-02 12:10:58,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:58,074 INFO L471 AbstractCegarLoop]: Abstraction has 6599 states and 9566 transitions. [2024-12-02 12:10:58,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:10:58,074 INFO L276 IsEmpty]: Start isEmpty. Operand 6599 states and 9566 transitions. [2024-12-02 12:10:58,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 12:10:58,074 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:58,074 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:58,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2024-12-02 12:10:58,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:58,275 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:10:58,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:58,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1096829050, now seen corresponding path program 1 times [2024-12-02 12:10:58,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:58,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003165869] [2024-12-02 12:10:58,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:58,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:10:58,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1007512063] [2024-12-02 12:10:58,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:58,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:58,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:10:58,285 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:10:58,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2024-12-02 12:10:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:58,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 12:10:58,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:10:59,484 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-12-02 12:10:59,484 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:11:13,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:11:13,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003165869] [2024-12-02 12:11:13,945 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:11:13,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007512063] [2024-12-02 12:11:13,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007512063] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:11:13,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:11:13,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-12-02 12:11:13,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436170657] [2024-12-02 12:11:13,945 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:11:13,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 12:11:13,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:11:13,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 12:11:13,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=256, Unknown=2, NotChecked=0, Total=342 [2024-12-02 12:11:13,945 INFO L87 Difference]: Start difference. First operand 6599 states and 9566 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:11:16,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:11:16,965 INFO L93 Difference]: Finished difference Result 7964 states and 11416 transitions. [2024-12-02 12:11:16,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 12:11:16,966 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 131 [2024-12-02 12:11:16,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:11:16,974 INFO L225 Difference]: With dead ends: 7964 [2024-12-02 12:11:16,974 INFO L226 Difference]: Without dead ends: 7962 [2024-12-02 12:11:16,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=210, Invalid=600, Unknown=2, NotChecked=0, Total=812 [2024-12-02 12:11:16,975 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 500 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:11:16,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 877 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:11:16,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7962 states. [2024-12-02 12:11:18,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7962 to 7773. [2024-12-02 12:11:18,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7773 states, 6752 states have (on average 1.3664099526066351) internal successors, (9226), 6794 states have internal predecessors, (9226), 976 states have call successors, (976), 2 states have call predecessors, (976), 2 states have return successors, (976), 976 states have call predecessors, (976), 976 states have call successors, (976) [2024-12-02 12:11:18,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7773 states to 7773 states and 11178 transitions. [2024-12-02 12:11:18,843 INFO L78 Accepts]: Start accepts. Automaton has 7773 states and 11178 transitions. Word has length 131 [2024-12-02 12:11:18,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:11:18,843 INFO L471 AbstractCegarLoop]: Abstraction has 7773 states and 11178 transitions. [2024-12-02 12:11:18,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:11:18,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7773 states and 11178 transitions. [2024-12-02 12:11:18,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 12:11:18,844 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:11:18,844 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:11:18,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2024-12-02 12:11:19,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:11:19,044 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:11:19,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:11:19,044 INFO L85 PathProgramCache]: Analyzing trace with hash 358037991, now seen corresponding path program 1 times [2024-12-02 12:11:19,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:11:19,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939184687] [2024-12-02 12:11:19,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:19,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:11:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:11:19,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016961214] [2024-12-02 12:11:19,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:19,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:11:19,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:11:19,055 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:11:19,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2024-12-02 12:11:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:11:19,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:11:19,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:11:19,223 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-12-02 12:11:19,223 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:11:19,354 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-12-02 12:11:19,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:11:19,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939184687] [2024-12-02 12:11:19,354 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:11:19,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016961214] [2024-12-02 12:11:19,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016961214] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:11:19,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:11:19,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2024-12-02 12:11:19,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699134227] [2024-12-02 12:11:19,354 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:11:19,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:11:19,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:11:19,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:11:19,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:11:19,355 INFO L87 Difference]: Start difference. First operand 7773 states and 11178 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 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) [2024-12-02 12:11:21,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:11:21,625 INFO L93 Difference]: Finished difference Result 7816 states and 11199 transitions. [2024-12-02 12:11:21,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:11:21,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 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 132 [2024-12-02 12:11:21,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:11:21,633 INFO L225 Difference]: With dead ends: 7816 [2024-12-02 12:11:21,633 INFO L226 Difference]: Without dead ends: 7814 [2024-12-02 12:11:21,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 257 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:11:21,634 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 186 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:11:21,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 429 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:11:21,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7814 states. [2024-12-02 12:11:23,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7814 to 6633. [2024-12-02 12:11:23,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 5765 states have (on average 1.3743278404163053) internal successors, (7923), 5807 states have internal predecessors, (7923), 823 states have call successors, (823), 2 states have call predecessors, (823), 2 states have return successors, (823), 823 states have call predecessors, (823), 823 states have call successors, (823) [2024-12-02 12:11:23,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 9569 transitions. [2024-12-02 12:11:23,215 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 9569 transitions. Word has length 132 [2024-12-02 12:11:23,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:11:23,215 INFO L471 AbstractCegarLoop]: Abstraction has 6633 states and 9569 transitions. [2024-12-02 12:11:23,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 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) [2024-12-02 12:11:23,215 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 9569 transitions. [2024-12-02 12:11:23,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 12:11:23,215 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:11:23,215 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:11:23,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2024-12-02 12:11:23,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable91 [2024-12-02 12:11:23,416 INFO L396 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:11:23,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:11:23,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1785723992, now seen corresponding path program 1 times [2024-12-02 12:11:23,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:11:23,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318371209] [2024-12-02 12:11:23,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:23,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:11:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:11:23,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440421696] [2024-12-02 12:11:23,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:23,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:11:23,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:11:23,426 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:11:23,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2024-12-02 12:11:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:11:23,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 12:11:23,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:11:24,706 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-12-02 12:11:24,707 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:12:05,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:12:05,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318371209] [2024-12-02 12:12:05,787 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:12:05,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440421696] [2024-12-02 12:12:05,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440421696] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:12:05,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:12:05,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-12-02 12:12:05,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664715538] [2024-12-02 12:12:05,787 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:12:05,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 12:12:05,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:12:05,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 12:12:05,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=321, Unknown=10, NotChecked=0, Total=420 [2024-12-02 12:12:05,788 INFO L87 Difference]: Start difference. First operand 6633 states and 9569 transitions. Second operand has 15 states, 14 states have (on average 5.857142857142857) internal successors, (82), 15 states have internal predecessors, (82), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:12:09,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:12:09,236 INFO L93 Difference]: Finished difference Result 7966 states and 11344 transitions. [2024-12-02 12:12:09,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 12:12:09,237 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.857142857142857) internal successors, (82), 15 states have internal predecessors, (82), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 133 [2024-12-02 12:12:09,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:12:09,245 INFO L225 Difference]: With dead ends: 7966 [2024-12-02 12:12:09,245 INFO L226 Difference]: Without dead ends: 7965 [2024-12-02 12:12:09,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 41.1s TimeCoverageRelationStatistics Valid=186, Invalid=616, Unknown=10, NotChecked=0, Total=812 [2024-12-02 12:12:09,247 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 546 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:12:09,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1098 Invalid, 1475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 12:12:09,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7965 states. [2024-12-02 12:12:10,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7965 to 6635. [2024-12-02 12:12:10,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6635 states, 5767 states have (on average 1.3741980232356512) internal successors, (7925), 5809 states have internal predecessors, (7925), 823 states have call successors, (823), 2 states have call predecessors, (823), 2 states have return successors, (823), 823 states have call predecessors, (823), 823 states have call successors, (823) [2024-12-02 12:12:10,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6635 states to 6635 states and 9571 transitions. [2024-12-02 12:12:10,840 INFO L78 Accepts]: Start accepts. Automaton has 6635 states and 9571 transitions. Word has length 133 [2024-12-02 12:12:10,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:12:10,840 INFO L471 AbstractCegarLoop]: Abstraction has 6635 states and 9571 transitions. [2024-12-02 12:12:10,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.857142857142857) internal successors, (82), 15 states have internal predecessors, (82), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:12:10,840 INFO L276 IsEmpty]: Start isEmpty. Operand 6635 states and 9571 transitions. [2024-12-02 12:12:10,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 12:12:10,841 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:12:10,841 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:12:10,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2024-12-02 12:12:11,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:11,041 INFO L396 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:12:11,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:12:11,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1649399412, now seen corresponding path program 2 times [2024-12-02 12:12:11,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:12:11,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426806136] [2024-12-02 12:12:11,042 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:12:11,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:12:11,057 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:12:11,057 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 12:12:11,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2035603820] [2024-12-02 12:12:11,058 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:12:11,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:11,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:12:11,059 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:12:11,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2024-12-02 12:12:11,116 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:12:11,116 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:12:11,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 12:12:11,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:12:11,592 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:12:11,592 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:12:11,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:12:11,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426806136] [2024-12-02 12:12:11,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:12:11,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035603820] [2024-12-02 12:12:11,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035603820] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:12:11,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:12:11,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-12-02 12:12:11,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883889993] [2024-12-02 12:12:11,664 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:12:11,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 12:12:11,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:12:11,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 12:12:11,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:12:11,664 INFO L87 Difference]: Start difference. First operand 6635 states and 9571 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 11 states have internal predecessors, (81), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:12:13,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:12:13,711 INFO L93 Difference]: Finished difference Result 6722 states and 9646 transitions. [2024-12-02 12:12:13,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 12:12:13,711 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 11 states have internal predecessors, (81), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 135 [2024-12-02 12:12:13,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:12:13,718 INFO L225 Difference]: With dead ends: 6722 [2024-12-02 12:12:13,718 INFO L226 Difference]: Without dead ends: 6721 [2024-12-02 12:12:13,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:12:13,719 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 252 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:12:13,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 643 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:12:13,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2024-12-02 12:12:15,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 6646. [2024-12-02 12:12:15,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6646 states, 5778 states have (on average 1.3734856351678781) internal successors, (7936), 5820 states have internal predecessors, (7936), 823 states have call successors, (823), 2 states have call predecessors, (823), 2 states have return successors, (823), 823 states have call predecessors, (823), 823 states have call successors, (823) [2024-12-02 12:12:15,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6646 states to 6646 states and 9582 transitions. [2024-12-02 12:12:15,286 INFO L78 Accepts]: Start accepts. Automaton has 6646 states and 9582 transitions. Word has length 135 [2024-12-02 12:12:15,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:12:15,286 INFO L471 AbstractCegarLoop]: Abstraction has 6646 states and 9582 transitions. [2024-12-02 12:12:15,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 11 states have internal predecessors, (81), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:12:15,287 INFO L276 IsEmpty]: Start isEmpty. Operand 6646 states and 9582 transitions. [2024-12-02 12:12:15,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 12:12:15,287 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:12:15,287 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:12:15,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2024-12-02 12:12:15,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:15,488 INFO L396 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:12:15,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:12:15,488 INFO L85 PathProgramCache]: Analyzing trace with hash -408225624, now seen corresponding path program 2 times [2024-12-02 12:12:15,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:12:15,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924756568] [2024-12-02 12:12:15,488 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:12:15,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:12:15,499 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:12:15,499 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 12:12:15,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548484052] [2024-12-02 12:12:15,500 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:12:15,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:15,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:12:15,502 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:12:15,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2024-12-02 12:12:15,562 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:12:15,562 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:12:15,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 12:12:15,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:12:16,072 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 2 proven. 41 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:12:16,072 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:12:16,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:12:16,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924756568] [2024-12-02 12:12:16,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:12:16,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548484052] [2024-12-02 12:12:16,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548484052] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:12:16,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:12:16,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-12-02 12:12:16,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907449986] [2024-12-02 12:12:16,236 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:12:16,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 12:12:16,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:12:16,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 12:12:16,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:12:16,236 INFO L87 Difference]: Start difference. First operand 6646 states and 9582 transitions. Second operand has 11 states, 10 states have (on average 8.2) internal successors, (82), 11 states have internal predecessors, (82), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:12:18,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:12:18,488 INFO L93 Difference]: Finished difference Result 6698 states and 9605 transitions. [2024-12-02 12:12:18,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 12:12:18,488 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.2) internal successors, (82), 11 states have internal predecessors, (82), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 136 [2024-12-02 12:12:18,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:12:18,494 INFO L225 Difference]: With dead ends: 6698 [2024-12-02 12:12:18,494 INFO L226 Difference]: Without dead ends: 6697 [2024-12-02 12:12:18,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:12:18,495 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 147 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:12:18,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 726 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:12:18,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6697 states. [2024-12-02 12:12:20,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6697 to 6646. [2024-12-02 12:12:20,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6646 states, 5778 states have (on average 1.3727933541017654) internal successors, (7932), 5820 states have internal predecessors, (7932), 823 states have call successors, (823), 2 states have call predecessors, (823), 2 states have return successors, (823), 823 states have call predecessors, (823), 823 states have call successors, (823) [2024-12-02 12:12:20,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6646 states to 6646 states and 9578 transitions. [2024-12-02 12:12:20,073 INFO L78 Accepts]: Start accepts. Automaton has 6646 states and 9578 transitions. Word has length 136 [2024-12-02 12:12:20,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:12:20,073 INFO L471 AbstractCegarLoop]: Abstraction has 6646 states and 9578 transitions. [2024-12-02 12:12:20,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.2) internal successors, (82), 11 states have internal predecessors, (82), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:12:20,073 INFO L276 IsEmpty]: Start isEmpty. Operand 6646 states and 9578 transitions. [2024-12-02 12:12:20,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 12:12:20,073 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:12:20,074 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:12:20,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2024-12-02 12:12:20,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:20,274 INFO L396 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:12:20,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:12:20,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1038341589, now seen corresponding path program 1 times [2024-12-02 12:12:20,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:12:20,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994128889] [2024-12-02 12:12:20,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:12:20,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:12:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:12:20,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245540688] [2024-12-02 12:12:20,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:12:20,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:20,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:12:20,288 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:12:20,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2024-12-02 12:12:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:12:20,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 12:12:20,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:12:21,637 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-12-02 12:12:21,637 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:12:21,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:12:21,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994128889] [2024-12-02 12:12:21,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:12:21,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245540688] [2024-12-02 12:12:21,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245540688] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:12:21,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:12:21,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-12-02 12:12:21,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283674709] [2024-12-02 12:12:21,895 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:12:21,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 12:12:21,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:12:21,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 12:12:21,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-12-02 12:12:21,895 INFO L87 Difference]: Start difference. First operand 6646 states and 9578 transitions. Second operand has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:12:25,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:12:25,252 INFO L93 Difference]: Finished difference Result 7191 states and 10296 transitions. [2024-12-02 12:12:25,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 12:12:25,253 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 136 [2024-12-02 12:12:25,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:12:25,260 INFO L225 Difference]: With dead ends: 7191 [2024-12-02 12:12:25,260 INFO L226 Difference]: Without dead ends: 7189 [2024-12-02 12:12:25,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2024-12-02 12:12:25,261 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 429 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 1859 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:12:25,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 653 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1859 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 12:12:25,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7189 states. [2024-12-02 12:12:26,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7189 to 6659. [2024-12-02 12:12:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6659 states, 5791 states have (on average 1.3721291659471593) internal successors, (7946), 5833 states have internal predecessors, (7946), 823 states have call successors, (823), 2 states have call predecessors, (823), 2 states have return successors, (823), 823 states have call predecessors, (823), 823 states have call successors, (823) [2024-12-02 12:12:26,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6659 states to 6659 states and 9592 transitions. [2024-12-02 12:12:26,866 INFO L78 Accepts]: Start accepts. Automaton has 6659 states and 9592 transitions. Word has length 136 [2024-12-02 12:12:26,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:12:26,866 INFO L471 AbstractCegarLoop]: Abstraction has 6659 states and 9592 transitions. [2024-12-02 12:12:26,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:12:26,866 INFO L276 IsEmpty]: Start isEmpty. Operand 6659 states and 9592 transitions. [2024-12-02 12:12:26,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 12:12:26,867 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:12:26,867 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:12:26,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2024-12-02 12:12:27,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:27,067 INFO L396 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:12:27,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:12:27,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1462795670, now seen corresponding path program 2 times [2024-12-02 12:12:27,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:12:27,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439401303] [2024-12-02 12:12:27,068 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:12:27,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:12:27,088 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:12:27,088 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 12:12:27,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [633546136] [2024-12-02 12:12:27,089 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:12:27,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:27,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:12:27,090 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:12:27,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2024-12-02 12:12:27,150 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:12:27,150 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:12:27,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 12:12:27,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:12:27,723 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:12:27,724 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:12:28,076 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:12:28,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:12:28,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439401303] [2024-12-02 12:12:28,076 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:12:28,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633546136] [2024-12-02 12:12:28,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633546136] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:12:28,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:12:28,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-12-02 12:12:28,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360618194] [2024-12-02 12:12:28,077 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:12:28,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 12:12:28,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:12:28,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 12:12:28,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-12-02 12:12:28,078 INFO L87 Difference]: Start difference. First operand 6659 states and 9592 transitions. Second operand has 22 states, 21 states have (on average 7.571428571428571) internal successors, (159), 22 states have internal predecessors, (159), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-12-02 12:12:34,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:12:34,153 INFO L93 Difference]: Finished difference Result 8848 states and 12651 transitions. [2024-12-02 12:12:34,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-12-02 12:12:34,153 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.571428571428571) internal successors, (159), 22 states have internal predecessors, (159), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 138 [2024-12-02 12:12:34,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:12:34,162 INFO L225 Difference]: With dead ends: 8848 [2024-12-02 12:12:34,162 INFO L226 Difference]: Without dead ends: 8847 [2024-12-02 12:12:34,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=436, Invalid=1634, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 12:12:34,164 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 1376 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 2042 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 2042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:12:34,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 1544 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 2042 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 12:12:34,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8847 states. [2024-12-02 12:12:35,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8847 to 6850. [2024-12-02 12:12:35,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6850 states, 5966 states have (on average 1.3707676835400604) internal successors, (8178), 6008 states have internal predecessors, (8178), 839 states have call successors, (839), 2 states have call predecessors, (839), 2 states have return successors, (839), 839 states have call predecessors, (839), 839 states have call successors, (839) [2024-12-02 12:12:35,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6850 states to 6850 states and 9856 transitions. [2024-12-02 12:12:35,842 INFO L78 Accepts]: Start accepts. Automaton has 6850 states and 9856 transitions. Word has length 138 [2024-12-02 12:12:35,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:12:35,843 INFO L471 AbstractCegarLoop]: Abstraction has 6850 states and 9856 transitions. [2024-12-02 12:12:35,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.571428571428571) internal successors, (159), 22 states have internal predecessors, (159), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-12-02 12:12:35,843 INFO L276 IsEmpty]: Start isEmpty. Operand 6850 states and 9856 transitions. [2024-12-02 12:12:35,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 12:12:35,843 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:12:35,843 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:12:35,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2024-12-02 12:12:36,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:36,044 INFO L396 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:12:36,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:12:36,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1413848499, now seen corresponding path program 1 times [2024-12-02 12:12:36,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:12:36,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913017026] [2024-12-02 12:12:36,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:12:36,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:12:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:12:36,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1222566237] [2024-12-02 12:12:36,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:12:36,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:36,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:12:36,054 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:12:36,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2024-12-02 12:12:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:12:36,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 12:12:36,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:12:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-12-02 12:12:37,721 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:12:40,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:12:40,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913017026] [2024-12-02 12:12:40,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:12:40,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222566237] [2024-12-02 12:12:40,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222566237] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:12:40,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:12:40,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-12-02 12:12:40,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357374816] [2024-12-02 12:12:40,090 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:12:40,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 12:12:40,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:12:40,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 12:12:40,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=535, Unknown=2, NotChecked=0, Total=650 [2024-12-02 12:12:40,091 INFO L87 Difference]: Start difference. First operand 6850 states and 9856 transitions. Second operand has 18 states, 17 states have (on average 5.117647058823529) internal successors, (87), 18 states have internal predecessors, (87), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:12:44,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:12:44,325 INFO L93 Difference]: Finished difference Result 7401 states and 10576 transitions. [2024-12-02 12:12:44,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 12:12:44,326 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.117647058823529) internal successors, (87), 18 states have internal predecessors, (87), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 138 [2024-12-02 12:12:44,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:12:44,335 INFO L225 Difference]: With dead ends: 7401 [2024-12-02 12:12:44,335 INFO L226 Difference]: Without dead ends: 7399 [2024-12-02 12:12:44,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=262, Invalid=1218, Unknown=2, NotChecked=0, Total=1482 [2024-12-02 12:12:44,336 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 425 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 2557 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 2595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:12:44,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 790 Invalid, 2595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2557 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 12:12:44,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7399 states. [2024-12-02 12:12:45,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7399 to 6851. [2024-12-02 12:12:45,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6851 states, 5967 states have (on average 1.370537958773253) internal successors, (8178), 6009 states have internal predecessors, (8178), 839 states have call successors, (839), 2 states have call predecessors, (839), 2 states have return successors, (839), 839 states have call predecessors, (839), 839 states have call successors, (839) [2024-12-02 12:12:45,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6851 states to 6851 states and 9856 transitions. [2024-12-02 12:12:45,996 INFO L78 Accepts]: Start accepts. Automaton has 6851 states and 9856 transitions. Word has length 138 [2024-12-02 12:12:45,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:12:45,997 INFO L471 AbstractCegarLoop]: Abstraction has 6851 states and 9856 transitions. [2024-12-02 12:12:45,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.117647058823529) internal successors, (87), 18 states have internal predecessors, (87), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:12:45,997 INFO L276 IsEmpty]: Start isEmpty. Operand 6851 states and 9856 transitions. [2024-12-02 12:12:45,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 12:12:45,997 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:12:45,997 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:12:46,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2024-12-02 12:12:46,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:46,198 INFO L396 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:12:46,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:12:46,198 INFO L85 PathProgramCache]: Analyzing trace with hash -899264971, now seen corresponding path program 1 times [2024-12-02 12:12:46,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:12:46,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562233578] [2024-12-02 12:12:46,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:12:46,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:12:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:12:46,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161062669] [2024-12-02 12:12:46,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:12:46,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:46,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:12:46,208 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:12:46,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2024-12-02 12:12:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:12:46,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 12:12:46,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:12:46,647 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-12-02 12:12:46,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:12:46,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:12:46,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562233578] [2024-12-02 12:12:46,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:12:46,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161062669] [2024-12-02 12:12:46,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161062669] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:12:46,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:12:46,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-12-02 12:12:46,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064916177] [2024-12-02 12:12:46,843 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:12:46,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:12:46,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:12:46,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:12:46,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:12:46,843 INFO L87 Difference]: Start difference. First operand 6851 states and 9856 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 12:12:49,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:12:49,919 INFO L93 Difference]: Finished difference Result 10054 states and 14665 transitions. [2024-12-02 12:12:49,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 12:12:49,920 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 140 [2024-12-02 12:12:49,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:12:49,929 INFO L225 Difference]: With dead ends: 10054 [2024-12-02 12:12:49,929 INFO L226 Difference]: Without dead ends: 10050 [2024-12-02 12:12:49,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2024-12-02 12:12:49,930 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 241 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:12:49,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 683 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:12:49,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10050 states. [2024-12-02 12:12:52,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10050 to 9881. [2024-12-02 12:12:52,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9881 states, 8597 states have (on average 1.3671048040013958) internal successors, (11753), 8639 states have internal predecessors, (11753), 1239 states have call successors, (1239), 2 states have call predecessors, (1239), 2 states have return successors, (1239), 1239 states have call predecessors, (1239), 1239 states have call successors, (1239) [2024-12-02 12:12:52,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9881 states to 9881 states and 14231 transitions. [2024-12-02 12:12:52,366 INFO L78 Accepts]: Start accepts. Automaton has 9881 states and 14231 transitions. Word has length 140 [2024-12-02 12:12:52,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:12:52,366 INFO L471 AbstractCegarLoop]: Abstraction has 9881 states and 14231 transitions. [2024-12-02 12:12:52,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-12-02 12:12:52,366 INFO L276 IsEmpty]: Start isEmpty. Operand 9881 states and 14231 transitions. [2024-12-02 12:12:52,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 12:12:52,367 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:12:52,367 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:12:52,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2024-12-02 12:12:52,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2024-12-02 12:12:52,567 INFO L396 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:12:52,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:12:52,567 INFO L85 PathProgramCache]: Analyzing trace with hash -879630322, now seen corresponding path program 1 times [2024-12-02 12:12:52,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:12:52,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392970080] [2024-12-02 12:12:52,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:12:52,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:12:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:12:52,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [30177418] [2024-12-02 12:12:52,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:12:52,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:52,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:12:52,577 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:12:52,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2024-12-02 12:12:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:12:52,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 12:12:52,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:12:54,507 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-12-02 12:12:54,507 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:12:59,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:12:59,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392970080] [2024-12-02 12:12:59,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:12:59,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30177418] [2024-12-02 12:12:59,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30177418] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:12:59,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:12:59,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-12-02 12:12:59,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378922481] [2024-12-02 12:12:59,576 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:12:59,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 12:12:59,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:12:59,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 12:12:59,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=538, Unknown=1, NotChecked=0, Total=650 [2024-12-02 12:12:59,577 INFO L87 Difference]: Start difference. First operand 9881 states and 14231 transitions. Second operand has 18 states, 17 states have (on average 5.176470588235294) internal successors, (88), 18 states have internal predecessors, (88), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:13:05,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:13:05,041 INFO L93 Difference]: Finished difference Result 10617 states and 15199 transitions. [2024-12-02 12:13:05,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 12:13:05,041 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.176470588235294) internal successors, (88), 18 states have internal predecessors, (88), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 139 [2024-12-02 12:13:05,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:13:05,051 INFO L225 Difference]: With dead ends: 10617 [2024-12-02 12:13:05,051 INFO L226 Difference]: Without dead ends: 10615 [2024-12-02 12:13:05,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=267, Invalid=1292, Unknown=1, NotChecked=0, Total=1560 [2024-12-02 12:13:05,053 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 461 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 2706 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 2750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:13:05,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 810 Invalid, 2750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2706 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 12:13:05,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10615 states. [2024-12-02 12:13:07,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10615 to 10436. [2024-12-02 12:13:07,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10436 states, 9080 states have (on average 1.3604625550660794) internal successors, (12353), 9122 states have internal predecessors, (12353), 1311 states have call successors, (1311), 2 states have call predecessors, (1311), 2 states have return successors, (1311), 1311 states have call predecessors, (1311), 1311 states have call successors, (1311) [2024-12-02 12:13:07,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10436 states to 10436 states and 14975 transitions. [2024-12-02 12:13:07,660 INFO L78 Accepts]: Start accepts. Automaton has 10436 states and 14975 transitions. Word has length 139 [2024-12-02 12:13:07,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:13:07,660 INFO L471 AbstractCegarLoop]: Abstraction has 10436 states and 14975 transitions. [2024-12-02 12:13:07,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.176470588235294) internal successors, (88), 18 states have internal predecessors, (88), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:13:07,660 INFO L276 IsEmpty]: Start isEmpty. Operand 10436 states and 14975 transitions. [2024-12-02 12:13:07,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 12:13:07,661 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:13:07,661 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 12:13:07,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Forceful destruction successful, exit code 0 [2024-12-02 12:13:07,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2024-12-02 12:13:07,862 INFO L396 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:13:07,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:13:07,862 INFO L85 PathProgramCache]: Analyzing trace with hash -2107410223, now seen corresponding path program 1 times [2024-12-02 12:13:07,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:13:07,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317434016] [2024-12-02 12:13:07,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:13:07,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:13:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:13:07,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525810356] [2024-12-02 12:13:07,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:13:07,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:13:07,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:13:07,880 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:13:07,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2024-12-02 12:13:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:13:07,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 12:13:07,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:13:08,560 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-12-02 12:13:08,560 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:13:08,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:13:08,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317434016] [2024-12-02 12:13:08,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:13:08,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525810356] [2024-12-02 12:13:08,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525810356] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:13:08,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:13:08,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-12-02 12:13:08,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090567896] [2024-12-02 12:13:08,985 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:13:08,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 12:13:08,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:13:08,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 12:13:08,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-12-02 12:13:08,986 INFO L87 Difference]: Start difference. First operand 10436 states and 14975 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2024-12-02 12:13:12,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:13:12,949 INFO L93 Difference]: Finished difference Result 10546 states and 15099 transitions. [2024-12-02 12:13:12,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 12:13:12,950 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 141 [2024-12-02 12:13:12,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:13:12,959 INFO L225 Difference]: With dead ends: 10546 [2024-12-02 12:13:12,960 INFO L226 Difference]: Without dead ends: 10544 [2024-12-02 12:13:12,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=659, Unknown=0, NotChecked=0, Total=812 [2024-12-02 12:13:12,961 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 377 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:13:12,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 665 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 12:13:12,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10544 states. [2024-12-02 12:13:15,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10544 to 10525. [2024-12-02 12:13:15,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10525 states, 9157 states have (on average 1.3583051217647701) internal successors, (12438), 9199 states have internal predecessors, (12438), 1323 states have call successors, (1323), 2 states have call predecessors, (1323), 2 states have return successors, (1323), 1323 states have call predecessors, (1323), 1323 states have call successors, (1323) [2024-12-02 12:13:15,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10525 states to 10525 states and 15084 transitions. [2024-12-02 12:13:15,758 INFO L78 Accepts]: Start accepts. Automaton has 10525 states and 15084 transitions. Word has length 141 [2024-12-02 12:13:15,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:13:15,758 INFO L471 AbstractCegarLoop]: Abstraction has 10525 states and 15084 transitions. [2024-12-02 12:13:15,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2024-12-02 12:13:15,758 INFO L276 IsEmpty]: Start isEmpty. Operand 10525 states and 15084 transitions. [2024-12-02 12:13:15,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 12:13:15,759 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:13:15,760 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:13:15,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2024-12-02 12:13:15,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2024-12-02 12:13:15,960 INFO L396 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:13:15,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:13:15,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1748264203, now seen corresponding path program 1 times [2024-12-02 12:13:15,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:13:15,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541296862] [2024-12-02 12:13:15,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:13:15,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:13:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:13:15,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2120444690] [2024-12-02 12:13:15,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:13:15,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:13:15,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:13:15,978 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:13:15,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2024-12-02 12:13:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:13:16,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 12:13:16,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:13:17,312 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 3 proven. 46 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-12-02 12:13:17,312 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:13:18,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:13:18,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541296862] [2024-12-02 12:13:18,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:13:18,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120444690] [2024-12-02 12:13:18,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120444690] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:13:18,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:13:18,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-12-02 12:13:18,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822957019] [2024-12-02 12:13:18,078 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:13:18,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 12:13:18,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:13:18,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 12:13:18,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2024-12-02 12:13:18,079 INFO L87 Difference]: Start difference. First operand 10525 states and 15084 transitions. Second operand has 17 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:13:24,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:13:24,105 INFO L93 Difference]: Finished difference Result 11260 states and 16125 transitions. [2024-12-02 12:13:24,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 12:13:24,106 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 140 [2024-12-02 12:13:24,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:13:24,123 INFO L225 Difference]: With dead ends: 11260 [2024-12-02 12:13:24,123 INFO L226 Difference]: Without dead ends: 11258 [2024-12-02 12:13:24,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=165, Invalid=957, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 12:13:24,125 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 566 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 2975 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:13:24,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1290 Invalid, 3028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2975 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-12-02 12:13:24,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2024-12-02 12:13:26,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 11112. [2024-12-02 12:13:26,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11112 states, 9668 states have (on average 1.3593297476210178) internal successors, (13142), 9710 states have internal predecessors, (13142), 1399 states have call successors, (1399), 2 states have call predecessors, (1399), 2 states have return successors, (1399), 1399 states have call predecessors, (1399), 1399 states have call successors, (1399) [2024-12-02 12:13:26,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11112 states to 11112 states and 15940 transitions. [2024-12-02 12:13:26,956 INFO L78 Accepts]: Start accepts. Automaton has 11112 states and 15940 transitions. Word has length 140 [2024-12-02 12:13:26,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:13:26,956 INFO L471 AbstractCegarLoop]: Abstraction has 11112 states and 15940 transitions. [2024-12-02 12:13:26,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:13:26,956 INFO L276 IsEmpty]: Start isEmpty. Operand 11112 states and 15940 transitions. [2024-12-02 12:13:26,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 12:13:26,957 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:13:26,957 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:13:26,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2024-12-02 12:13:27,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2024-12-02 12:13:27,157 INFO L396 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:13:27,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:13:27,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1498736017, now seen corresponding path program 1 times [2024-12-02 12:13:27,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:13:27,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784331766] [2024-12-02 12:13:27,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:13:27,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:13:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:13:27,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1249795570] [2024-12-02 12:13:27,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:13:27,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:13:27,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:13:27,168 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:13:27,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2024-12-02 12:13:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:13:27,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 12:13:27,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:13:28,353 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:13:28,353 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:13:33,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:13:33,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784331766] [2024-12-02 12:13:33,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:13:33,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249795570] [2024-12-02 12:13:33,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249795570] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:13:33,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:13:33,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-12-02 12:13:33,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466411554] [2024-12-02 12:13:33,210 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:13:33,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 12:13:33,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:13:33,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 12:13:33,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=350, Unknown=1, NotChecked=0, Total=420 [2024-12-02 12:13:33,211 INFO L87 Difference]: Start difference. First operand 11112 states and 15940 transitions. Second operand has 14 states, 13 states have (on average 6.615384615384615) internal successors, (86), 14 states have internal predecessors, (86), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:13:38,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:13:38,037 INFO L93 Difference]: Finished difference Result 11214 states and 16036 transitions. [2024-12-02 12:13:38,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 12:13:38,038 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.615384615384615) internal successors, (86), 14 states have internal predecessors, (86), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 140 [2024-12-02 12:13:38,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:13:38,048 INFO L225 Difference]: With dead ends: 11214 [2024-12-02 12:13:38,048 INFO L226 Difference]: Without dead ends: 11211 [2024-12-02 12:13:38,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=158, Invalid=653, Unknown=1, NotChecked=0, Total=812 [2024-12-02 12:13:38,050 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 134 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:13:38,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 975 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1884 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 12:13:38,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11211 states. [2024-12-02 12:13:40,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11211 to 10576. [2024-12-02 12:13:40,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10576 states, 9204 states have (on average 1.361038678835289) internal successors, (12527), 9246 states have internal predecessors, (12527), 1327 states have call successors, (1327), 2 states have call predecessors, (1327), 2 states have return successors, (1327), 1327 states have call predecessors, (1327), 1327 states have call successors, (1327) [2024-12-02 12:13:40,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10576 states to 10576 states and 15181 transitions. [2024-12-02 12:13:40,795 INFO L78 Accepts]: Start accepts. Automaton has 10576 states and 15181 transitions. Word has length 140 [2024-12-02 12:13:40,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:13:40,795 INFO L471 AbstractCegarLoop]: Abstraction has 10576 states and 15181 transitions. [2024-12-02 12:13:40,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.615384615384615) internal successors, (86), 14 states have internal predecessors, (86), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:13:40,795 INFO L276 IsEmpty]: Start isEmpty. Operand 10576 states and 15181 transitions. [2024-12-02 12:13:40,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 12:13:40,796 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:13:40,796 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 12:13:40,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2024-12-02 12:13:40,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2024-12-02 12:13:40,996 INFO L396 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:13:40,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:13:40,996 INFO L85 PathProgramCache]: Analyzing trace with hash -905207369, now seen corresponding path program 1 times [2024-12-02 12:13:40,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:13:40,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613797582] [2024-12-02 12:13:40,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:13:40,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:13:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:13:41,088 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 1 proven. 59 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-12-02 12:13:41,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:13:41,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613797582] [2024-12-02 12:13:41,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613797582] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:13:41,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325068876] [2024-12-02 12:13:41,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:13:41,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:13:41,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:13:41,090 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:13:41,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2024-12-02 12:13:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:13:41,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 12:13:41,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:13:41,487 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 1 proven. 59 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-12-02 12:13:41,487 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:13:41,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325068876] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:13:41,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:13:41,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-12-02 12:13:41,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200716604] [2024-12-02 12:13:41,577 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:13:41,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 12:13:41,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:13:41,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 12:13:41,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:13:41,578 INFO L87 Difference]: Start difference. First operand 10576 states and 15181 transitions. Second operand has 13 states, 12 states have (on average 10.333333333333334) internal successors, (124), 13 states have internal predecessors, (124), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-12-02 12:13:44,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:13:44,360 INFO L93 Difference]: Finished difference Result 17000 states and 24658 transitions. [2024-12-02 12:13:44,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 12:13:44,360 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.333333333333334) internal successors, (124), 13 states have internal predecessors, (124), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 142 [2024-12-02 12:13:44,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:13:44,371 INFO L225 Difference]: With dead ends: 17000 [2024-12-02 12:13:44,371 INFO L226 Difference]: Without dead ends: 7854 [2024-12-02 12:13:44,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-12-02 12:13:44,383 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 89 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:13:44,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 1489 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 12:13:44,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7854 states. [2024-12-02 12:13:46,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7854 to 7194. [2024-12-02 12:13:46,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7194 states, 6260 states have (on average 1.3637380191693291) internal successors, (8537), 6302 states have internal predecessors, (8537), 889 states have call successors, (889), 2 states have call predecessors, (889), 2 states have return successors, (889), 889 states have call predecessors, (889), 889 states have call successors, (889) [2024-12-02 12:13:46,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7194 states to 7194 states and 10315 transitions. [2024-12-02 12:13:46,291 INFO L78 Accepts]: Start accepts. Automaton has 7194 states and 10315 transitions. Word has length 142 [2024-12-02 12:13:46,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:13:46,292 INFO L471 AbstractCegarLoop]: Abstraction has 7194 states and 10315 transitions. [2024-12-02 12:13:46,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.333333333333334) internal successors, (124), 13 states have internal predecessors, (124), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-12-02 12:13:46,292 INFO L276 IsEmpty]: Start isEmpty. Operand 7194 states and 10315 transitions. [2024-12-02 12:13:46,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 12:13:46,292 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:13:46,292 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:13:46,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Forceful destruction successful, exit code 0 [2024-12-02 12:13:46,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2024-12-02 12:13:46,493 INFO L396 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:13:46,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:13:46,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1638384386, now seen corresponding path program 2 times [2024-12-02 12:13:46,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:13:46,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41011094] [2024-12-02 12:13:46,493 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:13:46,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:13:46,503 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:13:46,503 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 12:13:46,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [764421389] [2024-12-02 12:13:46,504 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:13:46,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:13:46,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:13:46,505 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:13:46,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2024-12-02 12:13:46,556 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:13:46,556 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:13:46,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-12-02 12:13:46,559 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:13:48,177 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 3 proven. 46 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-12-02 12:13:48,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:13:50,074 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 3 proven. 46 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-12-02 12:13:50,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:13:50,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41011094] [2024-12-02 12:13:50,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:13:50,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764421389] [2024-12-02 12:13:50,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764421389] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:13:50,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:13:50,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 35 [2024-12-02 12:13:50,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017905809] [2024-12-02 12:13:50,074 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:13:50,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-12-02 12:13:50,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:13:50,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-12-02 12:13:50,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1078, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 12:13:50,075 INFO L87 Difference]: Start difference. First operand 7194 states and 10315 transitions. Second operand has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 34 states have internal predecessors, (170), 7 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-12-02 12:13:56,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:14:03,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:14:08,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:14:12,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:14:16,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:14:29,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:14:33,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:14:38,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:14:44,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:14:48,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:14:52,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:14:56,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:15:01,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:15:10,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:15:14,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:15:19,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:15:24,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:15:29,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:15:36,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:15:40,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:15:49,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:15:54,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:15:58,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:16:02,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:16:06,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:16:10,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:16:14,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:16:19,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:16:24,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:16:33,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:16:37,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:16:42,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:16:46,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:16:50,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:16:57,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:17:01,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-12-02 12:17:03,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:17:03,152 INFO L93 Difference]: Finished difference Result 8616 states and 12435 transitions. [2024-12-02 12:17:03,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2024-12-02 12:17:03,153 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 34 states have internal predecessors, (170), 7 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 141 [2024-12-02 12:17:03,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:17:03,162 INFO L225 Difference]: With dead ends: 8616 [2024-12-02 12:17:03,162 INFO L226 Difference]: Without dead ends: 8610 [2024-12-02 12:17:03,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7399 ImplicationChecksByTransitivity, 24.6s TimeCoverageRelationStatistics Valid=3683, Invalid=18966, Unknown=1, NotChecked=0, Total=22650 [2024-12-02 12:17:03,165 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 2859 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 6707 mSolverCounterSat, 451 mSolverCounterUnsat, 36 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 164.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2859 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 7194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 6707 IncrementalHoareTripleChecker+Invalid, 36 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 166.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:17:03,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2859 Valid, 1213 Invalid, 7194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 6707 Invalid, 36 Unknown, 0 Unchecked, 166.9s Time] [2024-12-02 12:17:03,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8610 states. [2024-12-02 12:17:05,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8610 to 7504. [2024-12-02 12:17:05,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7504 states, 6538 states have (on average 1.34796573875803) internal successors, (8813), 6580 states have internal predecessors, (8813), 921 states have call successors, (921), 2 states have call predecessors, (921), 2 states have return successors, (921), 921 states have call predecessors, (921), 921 states have call successors, (921) [2024-12-02 12:17:05,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 10655 transitions. [2024-12-02 12:17:05,389 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 10655 transitions. Word has length 141 [2024-12-02 12:17:05,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:17:05,389 INFO L471 AbstractCegarLoop]: Abstraction has 7504 states and 10655 transitions. [2024-12-02 12:17:05,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 34 states have internal predecessors, (170), 7 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-12-02 12:17:05,389 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 10655 transitions. [2024-12-02 12:17:05,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 12:17:05,390 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:17:05,390 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:17:05,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2024-12-02 12:17:05,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2024-12-02 12:17:05,591 INFO L396 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:17:05,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:17:05,591 INFO L85 PathProgramCache]: Analyzing trace with hash 783823920, now seen corresponding path program 1 times [2024-12-02 12:17:05,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:17:05,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178942916] [2024-12-02 12:17:05,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:17:05,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:17:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:17:05,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527486974] [2024-12-02 12:17:05,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:17:05,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:17:05,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:17:05,602 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:17:05,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2024-12-02 12:17:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:17:05,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-02 12:17:05,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:17:08,584 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-12-02 12:17:08,585 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:17:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-12-02 12:17:11,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:17:11,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178942916] [2024-12-02 12:17:11,652 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:17:11,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527486974] [2024-12-02 12:17:11,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527486974] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:17:11,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:17:11,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2024-12-02 12:17:11,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153915194] [2024-12-02 12:17:11,652 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:17:11,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 12:17:11,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:17:11,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 12:17:11,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=708, Unknown=0, NotChecked=0, Total=812 [2024-12-02 12:17:11,653 INFO L87 Difference]: Start difference. First operand 7504 states and 10655 transitions. Second operand has 29 states, 28 states have (on average 6.107142857142857) internal successors, (171), 29 states have internal predecessors, (171), 7 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2024-12-02 12:17:38,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:17:38,318 INFO L93 Difference]: Finished difference Result 8068 states and 11377 transitions. [2024-12-02 12:17:38,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-12-02 12:17:38,319 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 6.107142857142857) internal successors, (171), 29 states have internal predecessors, (171), 7 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) Word has length 141 [2024-12-02 12:17:38,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:17:38,328 INFO L225 Difference]: With dead ends: 8068 [2024-12-02 12:17:38,328 INFO L226 Difference]: Without dead ends: 8050 [2024-12-02 12:17:38,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=781, Invalid=3251, Unknown=0, NotChecked=0, Total=4032 [2024-12-02 12:17:38,329 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 1625 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 4181 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 4400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 4181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:17:38,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1629 Valid, 815 Invalid, 4400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 4181 Invalid, 0 Unknown, 0 Unchecked, 17.8s Time] [2024-12-02 12:17:38,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8050 states. [2024-12-02 12:17:40,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8050 to 7521. [2024-12-02 12:17:40,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7521 states, 6555 states have (on average 1.3484363081617086) internal successors, (8839), 6597 states have internal predecessors, (8839), 921 states have call successors, (921), 2 states have call predecessors, (921), 2 states have return successors, (921), 921 states have call predecessors, (921), 921 states have call successors, (921) [2024-12-02 12:17:40,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7521 states to 7521 states and 10681 transitions. [2024-12-02 12:17:40,800 INFO L78 Accepts]: Start accepts. Automaton has 7521 states and 10681 transitions. Word has length 141 [2024-12-02 12:17:40,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:17:40,800 INFO L471 AbstractCegarLoop]: Abstraction has 7521 states and 10681 transitions. [2024-12-02 12:17:40,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 6.107142857142857) internal successors, (171), 29 states have internal predecessors, (171), 7 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2024-12-02 12:17:40,800 INFO L276 IsEmpty]: Start isEmpty. Operand 7521 states and 10681 transitions. [2024-12-02 12:17:40,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 12:17:40,800 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:17:40,800 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:17:40,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2024-12-02 12:17:41,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2024-12-02 12:17:41,001 INFO L396 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:17:41,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:17:41,001 INFO L85 PathProgramCache]: Analyzing trace with hash -199742121, now seen corresponding path program 2 times [2024-12-02 12:17:41,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:17:41,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419366885] [2024-12-02 12:17:41,001 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:17:41,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:17:41,016 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:17:41,017 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 12:17:41,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1841250007] [2024-12-02 12:17:41,018 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:17:41,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:17:41,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:17:41,019 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:17:41,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2024-12-02 12:17:41,086 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:17:41,086 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:17:41,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 12:17:41,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:17:41,699 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:17:41,699 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:18:15,803 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:18:15,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:18:15,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419366885] [2024-12-02 12:18:15,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:18:15,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841250007] [2024-12-02 12:18:15,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841250007] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:18:15,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:18:15,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-12-02 12:18:15,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182112853] [2024-12-02 12:18:15,804 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:18:15,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 12:18:15,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:18:15,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 12:18:15,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=431, Unknown=11, NotChecked=0, Total=552 [2024-12-02 12:18:15,805 INFO L87 Difference]: Start difference. First operand 7521 states and 10681 transitions. Second operand has 24 states, 23 states have (on average 7.260869565217392) internal successors, (167), 24 states have internal predecessors, (167), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-12-02 12:19:02,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:19:02,036 INFO L93 Difference]: Finished difference Result 8137 states and 11465 transitions. [2024-12-02 12:19:02,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-12-02 12:19:02,036 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 7.260869565217392) internal successors, (167), 24 states have internal predecessors, (167), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 142 [2024-12-02 12:19:02,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:19:02,045 INFO L225 Difference]: With dead ends: 8137 [2024-12-02 12:19:02,045 INFO L226 Difference]: Without dead ends: 8135 [2024-12-02 12:19:02,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 75.4s TimeCoverageRelationStatistics Valid=580, Invalid=2155, Unknown=21, NotChecked=0, Total=2756 [2024-12-02 12:19:02,046 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 2152 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 2225 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 2484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 2225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:19:02,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 1596 Invalid, 2484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 2225 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 12:19:02,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8135 states. [2024-12-02 12:19:04,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8135 to 7995. [2024-12-02 12:19:04,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7995 states, 6969 states have (on average 1.3529918209212226) internal successors, (9429), 7011 states have internal predecessors, (9429), 981 states have call successors, (981), 2 states have call predecessors, (981), 2 states have return successors, (981), 981 states have call predecessors, (981), 981 states have call successors, (981) [2024-12-02 12:19:04,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7995 states to 7995 states and 11391 transitions. [2024-12-02 12:19:04,532 INFO L78 Accepts]: Start accepts. Automaton has 7995 states and 11391 transitions. Word has length 142 [2024-12-02 12:19:04,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:19:04,532 INFO L471 AbstractCegarLoop]: Abstraction has 7995 states and 11391 transitions. [2024-12-02 12:19:04,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 7.260869565217392) internal successors, (167), 24 states have internal predecessors, (167), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-12-02 12:19:04,532 INFO L276 IsEmpty]: Start isEmpty. Operand 7995 states and 11391 transitions. [2024-12-02 12:19:04,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 12:19:04,533 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:19:04,533 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:19:04,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Forceful destruction successful, exit code 0 [2024-12-02 12:19:04,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2024-12-02 12:19:04,733 INFO L396 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:19:04,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:19:04,734 INFO L85 PathProgramCache]: Analyzing trace with hash -684956199, now seen corresponding path program 2 times [2024-12-02 12:19:04,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:19:04,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489115341] [2024-12-02 12:19:04,734 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:19:04,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:19:04,747 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:19:04,747 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 12:19:04,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [89048343] [2024-12-02 12:19:04,747 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:19:04,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:19:04,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:19:04,749 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:19:04,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2024-12-02 12:19:04,815 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:19:04,815 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:19:04,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 12:19:04,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:19:06,104 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 1 proven. 63 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-12-02 12:19:06,104 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:19:06,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:19:06,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489115341] [2024-12-02 12:19:06,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:19:06,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89048343] [2024-12-02 12:19:06,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89048343] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:19:06,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:19:06,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-12-02 12:19:06,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081370666] [2024-12-02 12:19:06,481 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:19:06,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 12:19:06,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:19:06,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 12:19:06,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2024-12-02 12:19:06,481 INFO L87 Difference]: Start difference. First operand 7995 states and 11391 transitions. Second operand has 18 states, 17 states have (on average 5.352941176470588) internal successors, (91), 18 states have internal predecessors, (91), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:19:11,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:19:11,768 INFO L93 Difference]: Finished difference Result 8445 states and 12028 transitions. [2024-12-02 12:19:11,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 12:19:11,769 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.352941176470588) internal successors, (91), 18 states have internal predecessors, (91), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 142 [2024-12-02 12:19:11,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:19:11,777 INFO L225 Difference]: With dead ends: 8445 [2024-12-02 12:19:11,778 INFO L226 Difference]: Without dead ends: 8444 [2024-12-02 12:19:11,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=164, Invalid=1168, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 12:19:11,779 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 479 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 2230 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:19:11,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 929 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2230 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 12:19:11,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8444 states. [2024-12-02 12:19:14,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8444 to 8342. [2024-12-02 12:19:14,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8342 states, 7272 states have (on average 1.3556105610561056) internal successors, (9858), 7314 states have internal predecessors, (9858), 1025 states have call successors, (1025), 2 states have call predecessors, (1025), 2 states have return successors, (1025), 1025 states have call predecessors, (1025), 1025 states have call successors, (1025) [2024-12-02 12:19:14,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 11908 transitions. [2024-12-02 12:19:14,319 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 11908 transitions. Word has length 142 [2024-12-02 12:19:14,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:19:14,319 INFO L471 AbstractCegarLoop]: Abstraction has 8342 states and 11908 transitions. [2024-12-02 12:19:14,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.352941176470588) internal successors, (91), 18 states have internal predecessors, (91), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:19:14,319 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 11908 transitions. [2024-12-02 12:19:14,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 12:19:14,320 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:19:14,320 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:19:14,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2024-12-02 12:19:14,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2024-12-02 12:19:14,520 INFO L396 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:19:14,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:19:14,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1765608160, now seen corresponding path program 2 times [2024-12-02 12:19:14,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:19:14,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984507177] [2024-12-02 12:19:14,520 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:19:14,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:19:14,532 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:19:14,532 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 12:19:14,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297969290] [2024-12-02 12:19:14,533 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:19:14,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:19:14,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:19:14,534 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:19:14,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2024-12-02 12:19:14,610 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:19:14,610 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:19:14,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 12:19:14,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:19:15,521 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:19:15,522 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:19:16,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:19:16,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984507177] [2024-12-02 12:19:16,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:19:16,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297969290] [2024-12-02 12:19:16,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297969290] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:19:16,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:19:16,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-12-02 12:19:16,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968984480] [2024-12-02 12:19:16,033 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:19:16,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 12:19:16,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:19:16,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 12:19:16,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-12-02 12:19:16,034 INFO L87 Difference]: Start difference. First operand 8342 states and 11908 transitions. Second operand has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 14 states have internal predecessors, (89), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:19:20,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:19:20,819 INFO L93 Difference]: Finished difference Result 8874 states and 12609 transitions. [2024-12-02 12:19:20,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 12:19:20,819 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 14 states have internal predecessors, (89), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 143 [2024-12-02 12:19:20,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:19:20,829 INFO L225 Difference]: With dead ends: 8874 [2024-12-02 12:19:20,829 INFO L226 Difference]: Without dead ends: 8872 [2024-12-02 12:19:20,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=139, Invalid=673, Unknown=0, NotChecked=0, Total=812 [2024-12-02 12:19:20,831 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 475 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 2045 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 2091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:19:20,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1474 Invalid, 2091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2045 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 12:19:20,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8872 states. [2024-12-02 12:19:23,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8872 to 8731. [2024-12-02 12:19:23,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8731 states, 7611 states have (on average 1.3535672053606622) internal successors, (10302), 7653 states have internal predecessors, (10302), 1075 states have call successors, (1075), 2 states have call predecessors, (1075), 2 states have return successors, (1075), 1075 states have call predecessors, (1075), 1075 states have call successors, (1075) [2024-12-02 12:19:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8731 states to 8731 states and 12452 transitions. [2024-12-02 12:19:23,560 INFO L78 Accepts]: Start accepts. Automaton has 8731 states and 12452 transitions. Word has length 143 [2024-12-02 12:19:23,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:19:23,560 INFO L471 AbstractCegarLoop]: Abstraction has 8731 states and 12452 transitions. [2024-12-02 12:19:23,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 14 states have internal predecessors, (89), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 12:19:23,561 INFO L276 IsEmpty]: Start isEmpty. Operand 8731 states and 12452 transitions. [2024-12-02 12:19:23,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 12:19:23,561 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:19:23,561 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:19:23,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2024-12-02 12:19:23,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:19:23,762 INFO L396 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-12-02 12:19:23,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:19:23,762 INFO L85 PathProgramCache]: Analyzing trace with hash 241194389, now seen corresponding path program 2 times [2024-12-02 12:19:23,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:19:23,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713290750] [2024-12-02 12:19:23,762 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:19:23,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:19:23,777 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:19:23,777 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 12:19:23,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1474933176] [2024-12-02 12:19:23,777 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:19:23,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:19:23,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:19:23,779 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:19:23,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01372d6a-2ce0-454a-9677-783429de1ace/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2024-12-02 12:19:23,839 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:19:23,839 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:19:23,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 12:19:23,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:19:25,065 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 1 proven. 65 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-12-02 12:19:25,065 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:19:25,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:19:25,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713290750] [2024-12-02 12:19:25,249 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:19:25,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474933176] [2024-12-02 12:19:25,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474933176] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:19:25,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:19:25,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-12-02 12:19:25,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615623386] [2024-12-02 12:19:25,250 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 12:19:25,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 12:19:25,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:19:25,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 12:19:25,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2024-12-02 12:19:25,250 INFO L87 Difference]: Start difference. First operand 8731 states and 12452 transitions. Second operand has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 16 states have internal predecessors, (92), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-12-02 12:19:29,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:19:29,828 INFO L93 Difference]: Finished difference Result 8824 states and 12541 transitions. [2024-12-02 12:19:29,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 12:19:29,828 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 16 states have internal predecessors, (92), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 143 [2024-12-02 12:19:29,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:19:29,838 INFO L225 Difference]: With dead ends: 8824 [2024-12-02 12:19:29,838 INFO L226 Difference]: Without dead ends: 8823 [2024-12-02 12:19:29,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=160, Invalid=596, Unknown=0, NotChecked=0, Total=756 [2024-12-02 12:19:29,840 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 436 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:19:29,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 1234 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1606 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 12:19:29,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8823 states.