./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU --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 38a2fba2a92db51b6a97ddc82d5dc9e2df7a8770315ef841bfaf5f0764404946 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:55:25,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:55:25,132 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 21:55:25,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:55:25,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:55:25,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:55:25,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:55:25,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:55:25,162 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:55:25,162 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:55:25,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:55:25,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:55:25,164 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:55:25,164 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:55:25,165 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:55:25,165 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:55:25,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:55:25,166 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:55:25,167 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:55:25,167 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:55:25,168 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:55:25,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:55:25,169 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:55:25,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:55:25,169 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:55:25,170 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 21:55:25,170 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:55:25,171 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:55:25,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:55:25,171 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:55:25,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:55:25,172 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:55:25,173 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:55:25,173 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:55:25,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:55:25,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:55:25,174 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:55:25,175 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:55:25,175 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:55:25,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:55:25,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:55:25,176 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:55:25,177 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:55:25,177 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:55:25,177 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38a2fba2a92db51b6a97ddc82d5dc9e2df7a8770315ef841bfaf5f0764404946 [2024-10-31 21:55:25,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:55:25,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:55:25,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:55:25,509 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:55:25,509 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:55:25,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i Unable to find full path for "g++" [2024-10-31 21:55:27,469 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:55:27,810 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:55:27,810 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i [2024-10-31 21:55:27,826 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/data/6deba9d4a/3b23cc6fb3e147458338fb2661cc1597/FLAG88cb0ceb3 [2024-10-31 21:55:28,048 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/data/6deba9d4a/3b23cc6fb3e147458338fb2661cc1597 [2024-10-31 21:55:28,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:55:28,052 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:55:28,053 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:55:28,053 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:55:28,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:55:28,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51089f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28, skipping insertion in model container [2024-10-31 21:55:28,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,119 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:55:28,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:55:28,644 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:55:28,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:55:28,863 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:55:28,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28 WrapperNode [2024-10-31 21:55:28,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:55:28,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:55:28,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:55:28,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:55:28,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,964 INFO L138 Inliner]: procedures = 165, calls = 76, calls flagged for inlining = 22, calls inlined = 4, statements flattened = 71 [2024-10-31 21:55:28,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:55:28,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:55:28,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:55:28,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:55:29,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:29,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:29,012 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:29,047 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [4, 2]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2]. The 3 writes are split as follows [3, 0]. [2024-10-31 21:55:29,048 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:29,048 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:29,067 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:29,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:29,072 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:29,073 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:29,079 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:55:29,080 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:55:29,080 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:55:29,080 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:55:29,082 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:29,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:55:29,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:29,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:29,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:55:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-31 21:55:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-31 21:55:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 21:55:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:55:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 21:55:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 21:55:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 21:55:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 21:55:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 21:55:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-31 21:55:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-31 21:55:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:55:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:55:29,374 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:55:29,377 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:55:29,627 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-10-31 21:55:29,627 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:55:29,649 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:55:29,650 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 21:55:29,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:55:29 BoogieIcfgContainer [2024-10-31 21:55:29,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:55:29,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:55:29,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:55:29,659 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:55:29,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:55:28" (1/3) ... [2024-10-31 21:55:29,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba5304c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:55:29, skipping insertion in model container [2024-10-31 21:55:29,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (2/3) ... [2024-10-31 21:55:29,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba5304c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:55:29, skipping insertion in model container [2024-10-31 21:55:29,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:55:29" (3/3) ... [2024-10-31 21:55:29,680 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test17_3.i [2024-10-31 21:55:29,725 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:55:29,725 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-31 21:55:29,808 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:55:29,815 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;@6dc491aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:55:29,817 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-31 21:55:29,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 38 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:55:29,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-31 21:55:29,832 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:29,833 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:29,834 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:29,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:29,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1952133915, now seen corresponding path program 1 times [2024-10-31 21:55:29,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:29,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189169152] [2024-10-31 21:55:29,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:29,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:30,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:30,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189169152] [2024-10-31 21:55:30,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189169152] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:30,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:30,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:55:30,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778514937] [2024-10-31 21:55:30,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:30,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:55:30,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:30,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:55:30,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:55:30,356 INFO L87 Difference]: Start difference. First operand has 42 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 38 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:55:30,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:30,486 INFO L93 Difference]: Finished difference Result 81 states and 98 transitions. [2024-10-31 21:55:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:55:30,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-10-31 21:55:30,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:30,501 INFO L225 Difference]: With dead ends: 81 [2024-10-31 21:55:30,501 INFO L226 Difference]: Without dead ends: 41 [2024-10-31 21:55:30,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:55:30,514 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 4 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:30,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 163 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:55:30,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-31 21:55:30,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2024-10-31 21:55:30,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 35 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:55:30,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2024-10-31 21:55:30,578 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 12 [2024-10-31 21:55:30,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:30,579 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2024-10-31 21:55:30,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:55:30,580 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2024-10-31 21:55:30,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-31 21:55:30,582 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:30,583 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:30,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:55:30,583 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:30,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:30,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1628733857, now seen corresponding path program 1 times [2024-10-31 21:55:30,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:30,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089014737] [2024-10-31 21:55:30,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:30,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:30,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:30,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089014737] [2024-10-31 21:55:30,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089014737] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:30,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236368239] [2024-10-31 21:55:30,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:30,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:30,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:30,884 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:30,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 21:55:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:31,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 21:55:31,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:31,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:31,162 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:55:31,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236368239] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:31,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:55:31,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-10-31 21:55:31,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731047349] [2024-10-31 21:55:31,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:31,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:55:31,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:31,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:55:31,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:55:31,169 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:55:31,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:31,216 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2024-10-31 21:55:31,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:55:31,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-10-31 21:55:31,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:31,218 INFO L225 Difference]: With dead ends: 39 [2024-10-31 21:55:31,218 INFO L226 Difference]: Without dead ends: 38 [2024-10-31 21:55:31,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:55:31,220 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 1 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:31,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 93 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:55:31,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-10-31 21:55:31,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-10-31 21:55:31,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 34 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:55:31,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2024-10-31 21:55:31,227 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 16 [2024-10-31 21:55:31,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:31,228 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2024-10-31 21:55:31,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:55:31,228 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2024-10-31 21:55:31,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-31 21:55:31,229 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:31,229 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:31,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 21:55:31,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:31,431 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:31,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:31,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1048857928, now seen corresponding path program 1 times [2024-10-31 21:55:31,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:31,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279232662] [2024-10-31 21:55:31,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:31,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:31,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:31,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:31,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:31,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279232662] [2024-10-31 21:55:31,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279232662] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:31,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648833206] [2024-10-31 21:55:31,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:31,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:31,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:31,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:31,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 21:55:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:31,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 21:55:31,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:31,720 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:31,720 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:55:31,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:31,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648833206] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:55:31,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:55:31,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-10-31 21:55:31,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94165984] [2024-10-31 21:55:31,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:55:31,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-31 21:55:31,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:31,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 21:55:31,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-31 21:55:31,806 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 13 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:55:31,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:31,927 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2024-10-31 21:55:31,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 21:55:31,928 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-10-31 21:55:31,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:31,930 INFO L225 Difference]: With dead ends: 53 [2024-10-31 21:55:31,931 INFO L226 Difference]: Without dead ends: 52 [2024-10-31 21:55:31,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-31 21:55:31,934 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 3 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:31,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 160 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:55:31,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-10-31 21:55:31,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2024-10-31 21:55:31,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 40 states have (on average 1.35) internal successors, (54), 46 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:55:31,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2024-10-31 21:55:31,954 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 17 [2024-10-31 21:55:31,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:31,955 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2024-10-31 21:55:31,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:55:31,956 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2024-10-31 21:55:31,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-31 21:55:31,957 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:31,957 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:31,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 21:55:32,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:32,159 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:32,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:32,159 INFO L85 PathProgramCache]: Analyzing trace with hash -328261460, now seen corresponding path program 1 times [2024-10-31 21:55:32,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:32,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165992804] [2024-10-31 21:55:32,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:32,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-31 21:55:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,250 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:55:32,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:32,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165992804] [2024-10-31 21:55:32,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165992804] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:32,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:32,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:55:32,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131726539] [2024-10-31 21:55:32,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:32,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:55:32,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:32,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:55:32,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:55:32,253 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:55:32,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:32,299 INFO L93 Difference]: Finished difference Result 76 states and 87 transitions. [2024-10-31 21:55:32,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:55:32,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2024-10-31 21:55:32,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:32,301 INFO L225 Difference]: With dead ends: 76 [2024-10-31 21:55:32,301 INFO L226 Difference]: Without dead ends: 52 [2024-10-31 21:55:32,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:55:32,303 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 12 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:32,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 94 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:55:32,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-10-31 21:55:32,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2024-10-31 21:55:32,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 40 states have (on average 1.325) internal successors, (53), 46 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:55:32,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2024-10-31 21:55:32,311 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 20 [2024-10-31 21:55:32,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:32,311 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2024-10-31 21:55:32,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:55:32,312 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2024-10-31 21:55:32,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-31 21:55:32,312 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:32,324 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:32,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:55:32,324 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:32,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:32,325 INFO L85 PathProgramCache]: Analyzing trace with hash -483632792, now seen corresponding path program 1 times [2024-10-31 21:55:32,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:32,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699877406] [2024-10-31 21:55:32,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:32,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 21:55:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,487 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 21:55:32,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:32,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699877406] [2024-10-31 21:55:32,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699877406] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:32,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:32,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 21:55:32,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698454411] [2024-10-31 21:55:32,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:32,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:55:32,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:32,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:55:32,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:55:32,490 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:55:32,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:32,530 INFO L93 Difference]: Finished difference Result 64 states and 73 transitions. [2024-10-31 21:55:32,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:55:32,531 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-10-31 21:55:32,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:32,532 INFO L225 Difference]: With dead ends: 64 [2024-10-31 21:55:32,532 INFO L226 Difference]: Without dead ends: 54 [2024-10-31 21:55:32,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:55:32,533 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 3 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:32,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 175 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:55:32,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-10-31 21:55:32,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-10-31 21:55:32,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.302325581395349) internal successors, (56), 49 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 21:55:32,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2024-10-31 21:55:32,542 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 24 [2024-10-31 21:55:32,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:32,543 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2024-10-31 21:55:32,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:55:32,543 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2024-10-31 21:55:32,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-31 21:55:32,544 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:32,544 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:32,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:55:32,545 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:32,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:32,545 INFO L85 PathProgramCache]: Analyzing trace with hash -455003641, now seen corresponding path program 1 times [2024-10-31 21:55:32,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:32,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259546965] [2024-10-31 21:55:32,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:32,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 21:55:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,646 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 21:55:32,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:32,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259546965] [2024-10-31 21:55:32,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259546965] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:32,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:32,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:55:32,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693597959] [2024-10-31 21:55:32,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:32,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:55:32,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:32,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:55:32,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:55:32,654 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:55:32,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:32,711 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2024-10-31 21:55:32,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:55:32,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2024-10-31 21:55:32,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:32,713 INFO L225 Difference]: With dead ends: 65 [2024-10-31 21:55:32,713 INFO L226 Difference]: Without dead ends: 63 [2024-10-31 21:55:32,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:55:32,714 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 5 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:32,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 92 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:55:32,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-10-31 21:55:32,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2024-10-31 21:55:32,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 54 states have internal predecessors, (62), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-31 21:55:32,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2024-10-31 21:55:32,728 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 24 [2024-10-31 21:55:32,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:32,729 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2024-10-31 21:55:32,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:55:32,729 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2024-10-31 21:55:32,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-31 21:55:32,730 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:32,730 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:32,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:55:32,731 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:32,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:32,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2107713003, now seen corresponding path program 1 times [2024-10-31 21:55:32,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:32,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867265917] [2024-10-31 21:55:32,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:32,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 21:55:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 21:55:32,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:32,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867265917] [2024-10-31 21:55:32,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867265917] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:32,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:32,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:55:32,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389190182] [2024-10-31 21:55:32,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:32,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:55:32,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:32,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:55:32,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:55:32,839 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:55:32,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:32,896 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2024-10-31 21:55:32,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:55:32,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2024-10-31 21:55:32,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:32,898 INFO L225 Difference]: With dead ends: 67 [2024-10-31 21:55:32,898 INFO L226 Difference]: Without dead ends: 65 [2024-10-31 21:55:32,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:55:32,900 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 6 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:32,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 117 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:55:32,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-10-31 21:55:32,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-10-31 21:55:32,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 58 states have internal predecessors, (67), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-31 21:55:32,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2024-10-31 21:55:32,913 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 25 [2024-10-31 21:55:32,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:32,914 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2024-10-31 21:55:32,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:55:32,914 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2024-10-31 21:55:32,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-31 21:55:32,915 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:32,915 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-31 21:55:32,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 21:55:32,915 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:32,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:32,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1300608145, now seen corresponding path program 1 times [2024-10-31 21:55:32,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:32,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783768994] [2024-10-31 21:55:32,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:32,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 21:55:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 21:55:33,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:33,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783768994] [2024-10-31 21:55:33,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783768994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:33,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:33,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:55:33,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524492813] [2024-10-31 21:55:33,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:33,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:55:33,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:33,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:55:33,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:55:33,050 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:55:33,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:33,115 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2024-10-31 21:55:33,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:55:33,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2024-10-31 21:55:33,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:33,117 INFO L225 Difference]: With dead ends: 72 [2024-10-31 21:55:33,117 INFO L226 Difference]: Without dead ends: 63 [2024-10-31 21:55:33,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:55:33,118 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 4 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:33,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 123 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:55:33,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-10-31 21:55:33,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2024-10-31 21:55:33,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.2653061224489797) internal successors, (62), 55 states have internal predecessors, (62), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-31 21:55:33,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2024-10-31 21:55:33,136 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 28 [2024-10-31 21:55:33,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:33,136 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2024-10-31 21:55:33,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 21:55:33,137 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2024-10-31 21:55:33,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-31 21:55:33,138 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:33,138 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:33,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 21:55:33,138 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:33,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:33,139 INFO L85 PathProgramCache]: Analyzing trace with hash -888516860, now seen corresponding path program 2 times [2024-10-31 21:55:33,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:33,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954976348] [2024-10-31 21:55:33,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:33,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,467 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:33,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:33,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954976348] [2024-10-31 21:55:33,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954976348] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:33,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786332982] [2024-10-31 21:55:33,468 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 21:55:33,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:33,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:33,472 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:33,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 21:55:33,566 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 21:55:33,566 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:55:33,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:55:33,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:33,679 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-31 21:55:33,679 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:55:33,791 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-31 21:55:33,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786332982] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:55:33,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:55:33,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 4, 4] total 18 [2024-10-31 21:55:33,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704382648] [2024-10-31 21:55:33,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:55:33,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-31 21:55:33,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:33,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-31 21:55:33,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-10-31 21:55:33,793 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand has 19 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 21:55:34,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:34,107 INFO L93 Difference]: Finished difference Result 66 states and 79 transitions. [2024-10-31 21:55:34,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-31 21:55:34,107 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 29 [2024-10-31 21:55:34,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:34,108 INFO L225 Difference]: With dead ends: 66 [2024-10-31 21:55:34,108 INFO L226 Difference]: Without dead ends: 65 [2024-10-31 21:55:34,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2024-10-31 21:55:34,110 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 15 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:34,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 305 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:55:34,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-10-31 21:55:34,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 45. [2024-10-31 21:55:34,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 39 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-31 21:55:34,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2024-10-31 21:55:34,116 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 29 [2024-10-31 21:55:34,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:34,116 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2024-10-31 21:55:34,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 21:55:34,116 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2024-10-31 21:55:34,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-31 21:55:34,117 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:34,117 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:34,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:34,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:34,320 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:34,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:34,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1516558058, now seen corresponding path program 1 times [2024-10-31 21:55:34,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:34,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246802028] [2024-10-31 21:55:34,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:34,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:34,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:34,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 21:55:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:34,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 21:55:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:34,517 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-31 21:55:34,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:34,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246802028] [2024-10-31 21:55:34,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246802028] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:34,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748955314] [2024-10-31 21:55:34,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:34,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:34,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:34,520 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:34,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 21:55:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:34,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 21:55:34,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-31 21:55:34,726 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:55:34,813 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-31 21:55:34,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748955314] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:55:34,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:55:34,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-10-31 21:55:34,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547762974] [2024-10-31 21:55:34,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:55:34,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-31 21:55:34,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:34,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-31 21:55:34,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-10-31 21:55:34,815 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 13 states have internal predecessors, (54), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-31 21:55:35,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:35,065 INFO L93 Difference]: Finished difference Result 97 states and 115 transitions. [2024-10-31 21:55:35,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 21:55:35,066 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 13 states have internal predecessors, (54), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 35 [2024-10-31 21:55:35,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:35,066 INFO L225 Difference]: With dead ends: 97 [2024-10-31 21:55:35,066 INFO L226 Difference]: Without dead ends: 62 [2024-10-31 21:55:35,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-10-31 21:55:35,067 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 17 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:35,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 295 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:55:35,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-31 21:55:35,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2024-10-31 21:55:35,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 51 states have internal predecessors, (56), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-31 21:55:35,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 68 transitions. [2024-10-31 21:55:35,079 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 68 transitions. Word has length 35 [2024-10-31 21:55:35,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:35,080 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 68 transitions. [2024-10-31 21:55:35,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 13 states have internal predecessors, (54), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-31 21:55:35,080 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 68 transitions. [2024-10-31 21:55:35,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-31 21:55:35,085 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:35,085 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:35,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 21:55:35,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 21:55:35,286 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:35,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:35,287 INFO L85 PathProgramCache]: Analyzing trace with hash -341732086, now seen corresponding path program 1 times [2024-10-31 21:55:35,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:35,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94325445] [2024-10-31 21:55:35,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:35,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:35,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:35,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-31 21:55:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:35,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 21:55:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:35,546 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 21:55:35,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:35,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94325445] [2024-10-31 21:55:35,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94325445] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:35,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706119469] [2024-10-31 21:55:35,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:35,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:35,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:35,548 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:35,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 21:55:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:35,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 21:55:35,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:36,012 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-31 21:55:36,012 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:55:36,201 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 21:55:36,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706119469] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:55:36,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:55:36,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 26 [2024-10-31 21:55:36,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508392272] [2024-10-31 21:55:36,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:55:36,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-31 21:55:36,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:36,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-31 21:55:36,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2024-10-31 21:55:36,204 INFO L87 Difference]: Start difference. First operand 58 states and 68 transitions. Second operand has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-31 21:55:36,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:36,472 INFO L93 Difference]: Finished difference Result 114 states and 135 transitions. [2024-10-31 21:55:36,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-31 21:55:36,473 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2024-10-31 21:55:36,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:36,474 INFO L225 Difference]: With dead ends: 114 [2024-10-31 21:55:36,474 INFO L226 Difference]: Without dead ends: 74 [2024-10-31 21:55:36,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=235, Invalid=757, Unknown=0, NotChecked=0, Total=992 [2024-10-31 21:55:36,476 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 23 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:36,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 201 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:55:36,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-10-31 21:55:36,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-10-31 21:55:36,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 62 states have (on average 1.1612903225806452) internal successors, (72), 67 states have internal predecessors, (72), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-31 21:55:36,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 84 transitions. [2024-10-31 21:55:36,486 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 84 transitions. Word has length 44 [2024-10-31 21:55:36,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:36,486 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 84 transitions. [2024-10-31 21:55:36,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-31 21:55:36,486 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 84 transitions. [2024-10-31 21:55:36,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-31 21:55:36,487 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:36,487 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:36,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 21:55:36,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-31 21:55:36,688 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:36,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:36,689 INFO L85 PathProgramCache]: Analyzing trace with hash 2040542202, now seen corresponding path program 2 times [2024-10-31 21:55:36,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:36,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334496772] [2024-10-31 21:55:36,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:36,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 21:55:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-31 21:55:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,236 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 21:55:37,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:37,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334496772] [2024-10-31 21:55:37,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334496772] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:37,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972782524] [2024-10-31 21:55:37,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 21:55:37,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:37,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:37,239 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:37,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 21:55:37,382 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 21:55:37,382 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:55:37,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-31 21:55:37,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 8 proven. 91 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-31 21:55:37,964 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:55:38,322 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 21:55:38,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972782524] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:55:38,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:55:38,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 18] total 39 [2024-10-31 21:55:38,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160336246] [2024-10-31 21:55:38,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:55:38,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-10-31 21:55:38,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:38,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-10-31 21:55:38,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2024-10-31 21:55:38,326 INFO L87 Difference]: Start difference. First operand 74 states and 84 transitions. Second operand has 39 states, 39 states have (on average 2.3076923076923075) internal successors, (90), 38 states have internal predecessors, (90), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-31 21:55:38,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:38,574 INFO L93 Difference]: Finished difference Result 126 states and 146 transitions. [2024-10-31 21:55:38,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-31 21:55:38,575 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.3076923076923075) internal successors, (90), 38 states have internal predecessors, (90), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 60 [2024-10-31 21:55:38,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:38,576 INFO L225 Difference]: With dead ends: 126 [2024-10-31 21:55:38,576 INFO L226 Difference]: Without dead ends: 86 [2024-10-31 21:55:38,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 94 SyntacticMatches, 11 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1216 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=405, Invalid=1401, Unknown=0, NotChecked=0, Total=1806 [2024-10-31 21:55:38,577 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 19 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:38,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 292 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:55:38,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-10-31 21:55:38,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-10-31 21:55:38,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 74 states have (on average 1.135135135135135) internal successors, (84), 79 states have internal predecessors, (84), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-31 21:55:38,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 96 transitions. [2024-10-31 21:55:38,599 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 96 transitions. Word has length 60 [2024-10-31 21:55:38,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:38,599 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 96 transitions. [2024-10-31 21:55:38,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.3076923076923075) internal successors, (90), 38 states have internal predecessors, (90), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-31 21:55:38,600 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2024-10-31 21:55:38,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-31 21:55:38,605 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:38,605 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:38,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 21:55:38,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-31 21:55:38,806 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:38,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:38,806 INFO L85 PathProgramCache]: Analyzing trace with hash 834101294, now seen corresponding path program 3 times [2024-10-31 21:55:38,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:38,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59792095] [2024-10-31 21:55:38,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:38,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:39,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:39,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 21:55:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:39,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 21:55:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:39,055 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-10-31 21:55:39,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:39,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59792095] [2024-10-31 21:55:39,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59792095] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:39,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49035632] [2024-10-31 21:55:39,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 21:55:39,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:39,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:39,059 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:39,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 21:55:39,188 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-31 21:55:39,188 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:55:39,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:55:39,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:39,257 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-10-31 21:55:39,257 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:55:39,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49035632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:39,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:55:39,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-31 21:55:39,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99159611] [2024-10-31 21:55:39,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:39,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:55:39,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:39,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:55:39,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:55:39,260 INFO L87 Difference]: Start difference. First operand 86 states and 96 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:55:39,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:39,295 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2024-10-31 21:55:39,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:55:39,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 72 [2024-10-31 21:55:39,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:39,296 INFO L225 Difference]: With dead ends: 86 [2024-10-31 21:55:39,296 INFO L226 Difference]: Without dead ends: 85 [2024-10-31 21:55:39,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:55:39,297 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:39,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 73 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:55:39,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-31 21:55:39,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-10-31 21:55:39,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 74 states have (on average 1.1216216216216217) internal successors, (83), 78 states have internal predecessors, (83), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-31 21:55:39,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2024-10-31 21:55:39,324 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 72 [2024-10-31 21:55:39,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:39,324 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2024-10-31 21:55:39,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:55:39,325 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2024-10-31 21:55:39,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-31 21:55:39,326 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:39,326 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:39,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-31 21:55:39,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-31 21:55:39,530 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:39,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:39,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1721603405, now seen corresponding path program 1 times [2024-10-31 21:55:39,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:39,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561712548] [2024-10-31 21:55:39,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:39,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:39,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:39,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 21:55:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:39,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 21:55:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:39,716 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-10-31 21:55:39,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:39,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561712548] [2024-10-31 21:55:39,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561712548] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:39,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076984056] [2024-10-31 21:55:39,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:39,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:39,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:39,719 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:39,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-31 21:55:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:39,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 21:55:39,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:39,930 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-10-31 21:55:39,930 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:55:39,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076984056] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:39,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:55:39,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-31 21:55:39,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494387687] [2024-10-31 21:55:39,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:39,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:55:39,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:39,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:55:39,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:55:39,933 INFO L87 Difference]: Start difference. First operand 85 states and 95 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:55:39,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:39,952 INFO L93 Difference]: Finished difference Result 85 states and 95 transitions. [2024-10-31 21:55:39,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:55:39,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 72 [2024-10-31 21:55:39,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:39,953 INFO L225 Difference]: With dead ends: 85 [2024-10-31 21:55:39,953 INFO L226 Difference]: Without dead ends: 84 [2024-10-31 21:55:39,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:55:39,955 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:39,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 53 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:55:39,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-10-31 21:55:39,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-10-31 21:55:39,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 74 states have (on average 1.1081081081081081) internal successors, (82), 77 states have internal predecessors, (82), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-31 21:55:39,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2024-10-31 21:55:39,965 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 72 [2024-10-31 21:55:39,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:39,965 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2024-10-31 21:55:39,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:55:39,966 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2024-10-31 21:55:39,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-31 21:55:39,966 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:39,967 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:39,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-31 21:55:40,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-31 21:55:40,170 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:40,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:40,170 INFO L85 PathProgramCache]: Analyzing trace with hash 87336420, now seen corresponding path program 1 times [2024-10-31 21:55:40,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:40,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643755729] [2024-10-31 21:55:40,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:40,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:40,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:40,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 21:55:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:40,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 21:55:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:40,402 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-10-31 21:55:40,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:40,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643755729] [2024-10-31 21:55:40,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643755729] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:40,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078259799] [2024-10-31 21:55:40,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:40,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:40,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:40,406 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:40,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-31 21:55:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:40,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 21:55:40,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:40,645 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-10-31 21:55:40,646 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:55:40,716 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-10-31 21:55:40,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078259799] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:55:40,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:55:40,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-10-31 21:55:40,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644879421] [2024-10-31 21:55:40,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:55:40,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-31 21:55:40,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:40,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 21:55:40,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-31 21:55:40,718 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand has 13 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:55:40,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:40,834 INFO L93 Difference]: Finished difference Result 113 states and 133 transitions. [2024-10-31 21:55:40,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 21:55:40,835 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 73 [2024-10-31 21:55:40,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:40,836 INFO L225 Difference]: With dead ends: 113 [2024-10-31 21:55:40,836 INFO L226 Difference]: Without dead ends: 112 [2024-10-31 21:55:40,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-31 21:55:40,837 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 15 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:40,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 163 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:55:40,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-10-31 21:55:40,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2024-10-31 21:55:40,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 95 states have (on average 1.105263157894737) internal successors, (105), 95 states have internal predecessors, (105), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 10 states have call predecessors, (12), 6 states have call successors, (12) [2024-10-31 21:55:40,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 123 transitions. [2024-10-31 21:55:40,848 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 123 transitions. Word has length 73 [2024-10-31 21:55:40,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:40,848 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 123 transitions. [2024-10-31 21:55:40,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:55:40,848 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 123 transitions. [2024-10-31 21:55:40,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-31 21:55:40,849 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:40,849 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:40,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:41,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-31 21:55:41,050 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:41,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:41,051 INFO L85 PathProgramCache]: Analyzing trace with hash 2082655192, now seen corresponding path program 1 times [2024-10-31 21:55:41,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:41,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298503689] [2024-10-31 21:55:41,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:41,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:41,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:41,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 21:55:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:41,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 21:55:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:41,156 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-10-31 21:55:41,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:41,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298503689] [2024-10-31 21:55:41,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298503689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:41,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:41,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:55:41,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758840310] [2024-10-31 21:55:41,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:41,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:55:41,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:41,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:55:41,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:55:41,159 INFO L87 Difference]: Start difference. First operand 107 states and 123 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:55:41,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:41,195 INFO L93 Difference]: Finished difference Result 107 states and 123 transitions. [2024-10-31 21:55:41,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:55:41,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2024-10-31 21:55:41,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:41,196 INFO L225 Difference]: With dead ends: 107 [2024-10-31 21:55:41,196 INFO L226 Difference]: Without dead ends: 106 [2024-10-31 21:55:41,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:55:41,197 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 4 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:41,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 115 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:55:41,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-10-31 21:55:41,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-10-31 21:55:41,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 95 states have (on average 1.0947368421052632) internal successors, (104), 94 states have internal predecessors, (104), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 10 states have call predecessors, (12), 6 states have call successors, (12) [2024-10-31 21:55:41,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2024-10-31 21:55:41,207 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 75 [2024-10-31 21:55:41,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:41,208 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2024-10-31 21:55:41,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:55:41,208 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2024-10-31 21:55:41,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-31 21:55:41,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:41,209 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:41,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 21:55:41,209 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:41,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:41,210 INFO L85 PathProgramCache]: Analyzing trace with hash 137801617, now seen corresponding path program 1 times [2024-10-31 21:55:41,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:41,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588536910] [2024-10-31 21:55:41,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:41,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:41,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:41,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 21:55:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:41,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 21:55:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:41,420 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-10-31 21:55:41,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:41,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588536910] [2024-10-31 21:55:41,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588536910] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:41,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075471988] [2024-10-31 21:55:41,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:41,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:41,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:41,423 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:41,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-31 21:55:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:41,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:55:41,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:41,678 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-10-31 21:55:41,678 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:55:41,782 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-10-31 21:55:41,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075471988] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:55:41,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:55:41,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2024-10-31 21:55:41,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908114160] [2024-10-31 21:55:41,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:55:41,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-31 21:55:41,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:41,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-31 21:55:41,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-10-31 21:55:41,785 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:55:41,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:41,931 INFO L93 Difference]: Finished difference Result 111 states and 128 transitions. [2024-10-31 21:55:41,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 21:55:41,932 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 76 [2024-10-31 21:55:41,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:41,933 INFO L225 Difference]: With dead ends: 111 [2024-10-31 21:55:41,933 INFO L226 Difference]: Without dead ends: 99 [2024-10-31 21:55:41,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-10-31 21:55:41,934 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:41,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 198 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:55:41,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-10-31 21:55:41,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2024-10-31 21:55:41,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 87 states have (on average 1.0689655172413792) internal successors, (93), 86 states have internal predecessors, (93), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 9 states have call predecessors, (12), 6 states have call successors, (12) [2024-10-31 21:55:41,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2024-10-31 21:55:41,944 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 76 [2024-10-31 21:55:41,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:41,945 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2024-10-31 21:55:41,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:55:41,945 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2024-10-31 21:55:41,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-31 21:55:41,946 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:41,946 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:41,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:42,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-31 21:55:42,151 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:42,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:42,151 INFO L85 PathProgramCache]: Analyzing trace with hash -73182781, now seen corresponding path program 2 times [2024-10-31 21:55:42,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:42,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958457234] [2024-10-31 21:55:42,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:42,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:42,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:42,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 21:55:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:42,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 21:55:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:42,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 21:55:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:42,377 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-10-31 21:55:42,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:42,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958457234] [2024-10-31 21:55:42,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958457234] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:42,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910332838] [2024-10-31 21:55:42,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 21:55:42,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:42,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:42,380 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:42,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-31 21:55:42,576 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 21:55:42,576 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:55:42,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:55:42,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:42,636 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-10-31 21:55:42,637 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:55:42,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910332838] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:42,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:55:42,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-10-31 21:55:42,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284349228] [2024-10-31 21:55:42,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:42,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 21:55:42,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:42,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 21:55:42,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:55:42,639 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 21:55:42,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:42,688 INFO L93 Difference]: Finished difference Result 97 states and 111 transitions. [2024-10-31 21:55:42,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:55:42,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 82 [2024-10-31 21:55:42,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:42,690 INFO L225 Difference]: With dead ends: 97 [2024-10-31 21:55:42,690 INFO L226 Difference]: Without dead ends: 95 [2024-10-31 21:55:42,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:55:42,691 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 1 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:42,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 89 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:55:42,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-10-31 21:55:42,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2024-10-31 21:55:42,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 79 states have (on average 1.0379746835443038) internal successors, (82), 79 states have internal predecessors, (82), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:55:42,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 94 transitions. [2024-10-31 21:55:42,703 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 94 transitions. Word has length 82 [2024-10-31 21:55:42,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:42,703 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 94 transitions. [2024-10-31 21:55:42,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 21:55:42,704 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 94 transitions. [2024-10-31 21:55:42,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-31 21:55:42,705 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:42,705 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:42,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-31 21:55:42,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-31 21:55:42,909 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:42,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:42,910 INFO L85 PathProgramCache]: Analyzing trace with hash 2120790201, now seen corresponding path program 2 times [2024-10-31 21:55:42,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:42,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003934525] [2024-10-31 21:55:42,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:42,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:43,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:43,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 21:55:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:43,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 21:55:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:43,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 21:55:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:43,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-31 21:55:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:43,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-31 21:55:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:43,306 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-10-31 21:55:43,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:43,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003934525] [2024-10-31 21:55:43,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003934525] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:43,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261276295] [2024-10-31 21:55:43,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 21:55:43,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:43,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:43,309 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:43,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-31 21:55:43,552 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 21:55:43,552 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:55:43,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 21:55:43,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:43,644 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-10-31 21:55:43,644 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:55:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-10-31 21:55:43,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261276295] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:55:43,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:55:43,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2024-10-31 21:55:43,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334821524] [2024-10-31 21:55:43,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:55:43,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-31 21:55:43,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:43,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-31 21:55:43,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2024-10-31 21:55:43,908 INFO L87 Difference]: Start difference. First operand 87 states and 94 transitions. Second operand has 25 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 24 states have internal predecessors, (82), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 21:55:44,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:44,094 INFO L93 Difference]: Finished difference Result 132 states and 161 transitions. [2024-10-31 21:55:44,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-31 21:55:44,094 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 24 states have internal predecessors, (82), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 106 [2024-10-31 21:55:44,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:44,095 INFO L225 Difference]: With dead ends: 132 [2024-10-31 21:55:44,096 INFO L226 Difference]: Without dead ends: 131 [2024-10-31 21:55:44,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2024-10-31 21:55:44,097 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 3 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:44,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 180 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:55:44,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-10-31 21:55:44,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2024-10-31 21:55:44,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 115 states have (on average 1.0260869565217392) internal successors, (118), 115 states have internal predecessors, (118), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 21:55:44,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 142 transitions. [2024-10-31 21:55:44,109 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 142 transitions. Word has length 106 [2024-10-31 21:55:44,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:44,109 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 142 transitions. [2024-10-31 21:55:44,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 24 states have internal predecessors, (82), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 21:55:44,110 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 142 transitions. [2024-10-31 21:55:44,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-31 21:55:44,112 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:44,112 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:44,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-31 21:55:44,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:44,316 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:55:44,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:44,317 INFO L85 PathProgramCache]: Analyzing trace with hash -674130407, now seen corresponding path program 3 times [2024-10-31 21:55:44,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:44,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790392226] [2024-10-31 21:55:44,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:44,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:45,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:45,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 21:55:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:45,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 21:55:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:45,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 21:55:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:45,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-31 21:55:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:45,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-31 21:55:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:45,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-31 21:55:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:45,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-31 21:55:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:45,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-31 21:55:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:45,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-31 21:55:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:45,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-31 21:55:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:45,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-31 21:55:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:45,649 INFO L134 CoverageAnalysis]: Checked inductivity of 839 backedges. 321 proven. 64 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-10-31 21:55:45,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:45,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790392226] [2024-10-31 21:55:45,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790392226] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:45,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453756952] [2024-10-31 21:55:45,650 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 21:55:45,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:45,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:45,653 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:45,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-31 21:55:45,927 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-10-31 21:55:45,927 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:55:45,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:55:45,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:46,220 INFO L134 CoverageAnalysis]: Checked inductivity of 839 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 779 trivial. 0 not checked. [2024-10-31 21:55:46,221 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:55:46,567 INFO L134 CoverageAnalysis]: Checked inductivity of 839 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 779 trivial. 0 not checked. [2024-10-31 21:55:46,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453756952] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:55:46,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:55:46,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 5, 5] total 32 [2024-10-31 21:55:46,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784536436] [2024-10-31 21:55:46,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:55:46,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-31 21:55:46,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:46,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-31 21:55:46,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2024-10-31 21:55:46,571 INFO L87 Difference]: Start difference. First operand 129 states and 142 transitions. Second operand has 32 states, 32 states have (on average 3.5625) internal successors, (114), 31 states have internal predecessors, (114), 17 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-31 21:55:47,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:47,636 INFO L93 Difference]: Finished difference Result 136 states and 159 transitions. [2024-10-31 21:55:47,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-31 21:55:47,636 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.5625) internal successors, (114), 31 states have internal predecessors, (114), 17 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 172 [2024-10-31 21:55:47,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:47,637 INFO L225 Difference]: With dead ends: 136 [2024-10-31 21:55:47,637 INFO L226 Difference]: Without dead ends: 0 [2024-10-31 21:55:47,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=595, Invalid=2827, Unknown=0, NotChecked=0, Total=3422 [2024-10-31 21:55:47,639 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 3 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:47,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 551 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 21:55:47,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-31 21:55:47,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-31 21:55:47,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:55:47,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 21:55:47,641 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 172 [2024-10-31 21:55:47,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:47,641 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 21:55:47,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.5625) internal successors, (114), 31 states have internal predecessors, (114), 17 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-31 21:55:47,642 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-31 21:55:47,642 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-31 21:55:47,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-10-31 21:55:47,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-10-31 21:55:47,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-10-31 21:55:47,646 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-10-31 21:55:47,646 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-10-31 21:55:47,646 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-10-31 21:55:47,646 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-10-31 21:55:47,646 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-10-31 21:55:47,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:47,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:47,854 INFO L407 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:47,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-31 21:55:48,235 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 21:55:48,261 WARN L156 FloydHoareUtils]: Requires clause for ldv_malloc contained old-variable. Original clause: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) Eliminated clause: true [2024-10-31 21:55:48,266 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!base [2024-10-31 21:55:48,268 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-10-31 21:55:48,268 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-10-31 21:55:48,268 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-10-31 21:55:48,268 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-10-31 21:55:48,273 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-10-31 21:55:48,273 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-10-31 21:55:48,274 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-10-31 21:55:48,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 09:55:48 BoogieIcfgContainer [2024-10-31 21:55:48,277 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 21:55:48,278 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 21:55:48,278 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 21:55:48,278 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 21:55:48,279 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:55:29" (3/4) ... [2024-10-31 21:55:48,283 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 21:55:48,289 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-10-31 21:55:48,294 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-31 21:55:48,294 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-31 21:55:48,295 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 21:55:48,431 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 21:55:48,431 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 21:55:48,432 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 21:55:48,432 INFO L158 Benchmark]: Toolchain (without parser) took 20380.58ms. Allocated memory was 132.1MB in the beginning and 243.3MB in the end (delta: 111.1MB). Free memory was 102.2MB in the beginning and 110.0MB in the end (delta: -7.8MB). Peak memory consumption was 104.8MB. Max. memory is 16.1GB. [2024-10-31 21:55:48,433 INFO L158 Benchmark]: CDTParser took 1.34ms. Allocated memory is still 109.1MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:55:48,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 814.56ms. Allocated memory is still 132.1MB. Free memory was 101.9MB in the beginning and 77.4MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-31 21:55:48,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.07ms. Allocated memory is still 132.1MB. Free memory was 77.4MB in the beginning and 75.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:55:48,434 INFO L158 Benchmark]: Boogie Preprocessor took 109.73ms. Allocated memory is still 132.1MB. Free memory was 75.3MB in the beginning and 72.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:55:48,434 INFO L158 Benchmark]: RCFGBuilder took 570.66ms. Allocated memory is still 132.1MB. Free memory was 72.9MB in the beginning and 58.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-31 21:55:48,435 INFO L158 Benchmark]: TraceAbstraction took 18622.56ms. Allocated memory was 132.1MB in the beginning and 243.3MB in the end (delta: 111.1MB). Free memory was 57.7MB in the beginning and 115.2MB in the end (delta: -57.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-10-31 21:55:48,435 INFO L158 Benchmark]: Witness Printer took 153.83ms. Allocated memory is still 243.3MB. Free memory was 115.2MB in the beginning and 110.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 21:55:48,442 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.34ms. Allocated memory is still 109.1MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 814.56ms. Allocated memory is still 132.1MB. Free memory was 101.9MB in the beginning and 77.4MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.07ms. Allocated memory is still 132.1MB. Free memory was 77.4MB in the beginning and 75.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.73ms. Allocated memory is still 132.1MB. Free memory was 75.3MB in the beginning and 72.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 570.66ms. Allocated memory is still 132.1MB. Free memory was 72.9MB in the beginning and 58.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 18622.56ms. Allocated memory was 132.1MB in the beginning and 243.3MB in the end (delta: 111.1MB). Free memory was 57.7MB in the beginning and 115.2MB in the end (delta: -57.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Witness Printer took 153.83ms. Allocated memory is still 243.3MB. Free memory was 115.2MB in the beginning and 110.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 18.1s, OverallIterations: 20, TraceHistogramMax: 12, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 148 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 148 mSDsluCounter, 3532 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2875 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2043 IncrementalHoareTripleChecker+Invalid, 2082 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 657 mSDtfsCounter, 2043 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1754 GetRequests, 1464 SyntacticMatches, 11 SemanticMatches, 279 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2745 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=19, InterpolantAutomatonStates: 214, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 52 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 1916 NumberOfCodeBlocks, 1733 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 2486 ConstructedInterpolants, 0 QuantifiedInterpolants, 5284 SizeOfPredicates, 4 NumberOfNonLiveVariables, 3377 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 42 InterpolantComputations, 11 PerfectInterpolantSequences, 6002/6853 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 771]: Loop Invariant Derived loop invariant: (j < 2147483649) - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: (((((len <= 10) && (2 <= i)) && (i <= 2147483646)) || ((len <= 10) && (i == 1))) || ((len <= 10) && (i == 0))) - InvariantResult [Line: 782]: Loop Invariant Derived loop invariant: ((((10 == len) && (1 <= i)) && (i <= 2147483646)) || ((10 == len) && (i == 0))) - ProcedureContractResult [Line: 525]: Procedure Contract for ldv_malloc Derived contract for procedure ldv_malloc. Ensures: (ldv_global_msg_list == \old(ldv_global_msg_list)) RESULT: Ultimate proved your program to be correct! [2024-10-31 21:55:48,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ffbc5ac-4a3e-4aad-b310-ba04ff931c93/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE