./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/chroot-incomplete-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/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_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/chroot-incomplete-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/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 64bit --witnessprinter.graph.data.programhash 7fb5800c8758888815eae44b37eaf9bc49d0baa078e11009154801fa3e07455f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:15:28,420 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:15:28,517 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-31 22:15:28,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:15:28,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:15:28,555 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:15:28,555 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:15:28,556 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:15:28,557 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:15:28,558 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:15:28,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:15:28,559 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:15:28,560 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:15:28,560 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:15:28,561 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:15:28,562 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:15:28,562 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:15:28,563 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:15:28,563 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:15:28,564 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:15:28,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:15:28,565 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:15:28,566 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:15:28,567 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:15:28,567 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:15:28,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:15:28,568 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:15:28,569 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:15:28,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:15:28,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:15:28,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:15:28,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:28,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:15:28,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:15:28,572 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:15:28,572 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:15:28,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:15:28,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:15:28,574 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:15:28,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:15:28,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:15:28,575 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_237e7750-28c0-43a7-9ecc-d7e4a58d0779/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fb5800c8758888815eae44b37eaf9bc49d0baa078e11009154801fa3e07455f [2024-10-31 22:15:29,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:15:29,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:15:29,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:15:29,067 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:15:29,068 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:15:29,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/busybox-1.22.0/chroot-incomplete-2.i Unable to find full path for "g++" [2024-10-31 22:15:31,249 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:15:31,660 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:15:31,660 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/sv-benchmarks/c/busybox-1.22.0/chroot-incomplete-2.i [2024-10-31 22:15:31,703 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/data/4a3028f9e/32c904d791dd49f891252ad0b745eadd/FLAG11d72e50f [2024-10-31 22:15:31,726 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/data/4a3028f9e/32c904d791dd49f891252ad0b745eadd [2024-10-31 22:15:31,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:15:31,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:15:31,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:31,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:15:31,739 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:15:31,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:31" (1/1) ... [2024-10-31 22:15:31,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d12ff63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:31, skipping insertion in model container [2024-10-31 22:15:31,742 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:31" (1/1) ... [2024-10-31 22:15:31,831 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:33,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:33,377 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:15:33,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:33,723 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:15:33,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:33 WrapperNode [2024-10-31 22:15:33,724 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:33,725 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:33,726 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:15:33,726 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:15:33,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:33" (1/1) ... [2024-10-31 22:15:33,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:33" (1/1) ... [2024-10-31 22:15:33,893 INFO L138 Inliner]: procedures = 615, calls = 599, calls flagged for inlining = 25, calls inlined = 23, statements flattened = 1095 [2024-10-31 22:15:33,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:33,894 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:15:33,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:15:33,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:15:33,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:33" (1/1) ... [2024-10-31 22:15:33,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:33" (1/1) ... [2024-10-31 22:15:33,930 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:33" (1/1) ... [2024-10-31 22:15:33,965 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-10-31 22:15:33,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:33" (1/1) ... [2024-10-31 22:15:33,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:33" (1/1) ... [2024-10-31 22:15:34,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:33" (1/1) ... [2024-10-31 22:15:34,006 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:33" (1/1) ... [2024-10-31 22:15:34,013 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:33" (1/1) ... [2024-10-31 22:15:34,018 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:33" (1/1) ... [2024-10-31 22:15:34,028 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:15:34,029 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:15:34,030 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:15:34,030 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:15:34,031 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:33" (1/1) ... [2024-10-31 22:15:34,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:34,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:34,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:15:34,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:15:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure execvp [2024-10-31 22:15:34,116 INFO L138 BoogieDeclarations]: Found implementation of procedure execvp [2024-10-31 22:15:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:15:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-10-31 22:15:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-10-31 22:15:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:15:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:15:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:15:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-31 22:15:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:15:34,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:15:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-10-31 22:15:34,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-10-31 22:15:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-10-31 22:15:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-10-31 22:15:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2024-10-31 22:15:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2024-10-31 22:15:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 22:15:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 22:15:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:15:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-31 22:15:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-10-31 22:15:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:15:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:15:34,619 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:15:34,623 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:15:36,724 INFO L? ?]: Removed 292 outVars from TransFormulas that were not future-live. [2024-10-31 22:15:36,724 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:15:36,749 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:15:36,749 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-10-31 22:15:36,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:36 BoogieIcfgContainer [2024-10-31 22:15:36,750 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:15:36,755 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:15:36,756 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:15:36,760 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:15:36,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:15:31" (1/3) ... [2024-10-31 22:15:36,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729b52d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:36, skipping insertion in model container [2024-10-31 22:15:36,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:33" (2/3) ... [2024-10-31 22:15:36,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729b52d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:36, skipping insertion in model container [2024-10-31 22:15:36,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:36" (3/3) ... [2024-10-31 22:15:36,765 INFO L112 eAbstractionObserver]: Analyzing ICFG chroot-incomplete-2.i [2024-10-31 22:15:36,784 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:15:36,784 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2024-10-31 22:15:36,898 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:15:36,907 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;@3892407c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:15:36,908 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-10-31 22:15:36,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 211 states, 156 states have (on average 1.608974358974359) internal successors, (251), 193 states have internal predecessors, (251), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-31 22:15:36,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-31 22:15:36,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:36,923 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-31 22:15:36,924 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:36,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:36,931 INFO L85 PathProgramCache]: Analyzing trace with hash 10653509, now seen corresponding path program 1 times [2024-10-31 22:15:36,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:36,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755516626] [2024-10-31 22:15:36,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:36,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:37,922 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 22:15:37,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:37,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755516626] [2024-10-31 22:15:37,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755516626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:37,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:37,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:37,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128171078] [2024-10-31 22:15:37,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:37,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:37,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:37,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:37,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:37,959 INFO L87 Difference]: Start difference. First operand has 211 states, 156 states have (on average 1.608974358974359) internal successors, (251), 193 states have internal predecessors, (251), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 22:15:38,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:38,069 INFO L93 Difference]: Finished difference Result 397 states and 541 transitions. [2024-10-31 22:15:38,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:38,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2024-10-31 22:15:38,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:38,085 INFO L225 Difference]: With dead ends: 397 [2024-10-31 22:15:38,085 INFO L226 Difference]: Without dead ends: 180 [2024-10-31 22:15:38,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:38,096 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 1 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:38,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 458 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:38,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-10-31 22:15:38,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2024-10-31 22:15:38,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 130 states have (on average 1.5153846153846153) internal successors, (197), 164 states have internal predecessors, (197), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:38,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 222 transitions. [2024-10-31 22:15:38,160 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 222 transitions. Word has length 4 [2024-10-31 22:15:38,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:38,161 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 222 transitions. [2024-10-31 22:15:38,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 22:15:38,161 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 222 transitions. [2024-10-31 22:15:38,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-31 22:15:38,162 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:38,162 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-10-31 22:15:38,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:15:38,163 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:38,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:38,163 INFO L85 PathProgramCache]: Analyzing trace with hash -448534969, now seen corresponding path program 1 times [2024-10-31 22:15:38,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:38,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714970193] [2024-10-31 22:15:38,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:38,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:38,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:38,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:38,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714970193] [2024-10-31 22:15:38,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714970193] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:38,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92153357] [2024-10-31 22:15:38,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:38,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:38,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:38,707 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:38,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:15:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:39,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:15:39,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:39,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:39,415 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:39,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92153357] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:39,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:15:39,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-10-31 22:15:39,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014771220] [2024-10-31 22:15:39,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:39,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:39,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:39,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:39,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:39,420 INFO L87 Difference]: Start difference. First operand 180 states and 222 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 22:15:39,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:39,485 INFO L93 Difference]: Finished difference Result 180 states and 222 transitions. [2024-10-31 22:15:39,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:39,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) Word has length 7 [2024-10-31 22:15:39,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:39,490 INFO L225 Difference]: With dead ends: 180 [2024-10-31 22:15:39,491 INFO L226 Difference]: Without dead ends: 179 [2024-10-31 22:15:39,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:39,492 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 1 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:39,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 424 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:39,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-10-31 22:15:39,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-10-31 22:15:39,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 130 states have (on average 1.5076923076923077) internal successors, (196), 163 states have internal predecessors, (196), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:39,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 221 transitions. [2024-10-31 22:15:39,523 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 221 transitions. Word has length 7 [2024-10-31 22:15:39,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:39,524 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 221 transitions. [2024-10-31 22:15:39,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 22:15:39,524 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 221 transitions. [2024-10-31 22:15:39,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:15:39,528 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:39,528 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2024-10-31 22:15:39,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:39,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:39,737 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:39,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:39,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1019681790, now seen corresponding path program 1 times [2024-10-31 22:15:39,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:39,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627210572] [2024-10-31 22:15:39,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:39,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:40,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:15:40,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:40,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627210572] [2024-10-31 22:15:40,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627210572] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:40,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:40,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:40,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381527965] [2024-10-31 22:15:40,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:40,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:40,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:40,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:40,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:40,216 INFO L87 Difference]: Start difference. First operand 179 states and 221 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 22:15:40,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:40,272 INFO L93 Difference]: Finished difference Result 179 states and 221 transitions. [2024-10-31 22:15:40,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:40,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2024-10-31 22:15:40,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:40,276 INFO L225 Difference]: With dead ends: 179 [2024-10-31 22:15:40,276 INFO L226 Difference]: Without dead ends: 178 [2024-10-31 22:15:40,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:40,284 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:40,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 425 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:40,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-10-31 22:15:40,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 176. [2024-10-31 22:15:40,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 128 states have (on average 1.5078125) internal successors, (193), 160 states have internal predecessors, (193), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:40,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 218 transitions. [2024-10-31 22:15:40,313 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 218 transitions. Word has length 8 [2024-10-31 22:15:40,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:40,313 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 218 transitions. [2024-10-31 22:15:40,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 22:15:40,314 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 218 transitions. [2024-10-31 22:15:40,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-31 22:15:40,317 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:40,317 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:40,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:15:40,318 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:40,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:40,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1542618324, now seen corresponding path program 1 times [2024-10-31 22:15:40,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:40,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968985781] [2024-10-31 22:15:40,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:40,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:40,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:15:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:40,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:40,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:40,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968985781] [2024-10-31 22:15:40,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968985781] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:40,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117235953] [2024-10-31 22:15:40,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:40,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:40,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:40,838 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:40,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:15:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:41,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:15:41,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:41,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:15:41,450 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:41,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117235953] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:41,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:15:41,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-31 22:15:41,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718080401] [2024-10-31 22:15:41,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:41,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:41,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:41,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:41,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:41,456 INFO L87 Difference]: Start difference. First operand 176 states and 218 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (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 22:15:41,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:41,506 INFO L93 Difference]: Finished difference Result 176 states and 218 transitions. [2024-10-31 22:15:41,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:41,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (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 13 [2024-10-31 22:15:41,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:41,510 INFO L225 Difference]: With dead ends: 176 [2024-10-31 22:15:41,510 INFO L226 Difference]: Without dead ends: 174 [2024-10-31 22:15:41,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 22:15:41,516 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 72 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:41,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 339 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:41,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-10-31 22:15:41,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-10-31 22:15:41,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 128 states have (on average 1.4921875) internal successors, (191), 158 states have internal predecessors, (191), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:41,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 216 transitions. [2024-10-31 22:15:41,539 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 216 transitions. Word has length 13 [2024-10-31 22:15:41,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:41,540 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 216 transitions. [2024-10-31 22:15:41,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (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 22:15:41,544 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 216 transitions. [2024-10-31 22:15:41,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-31 22:15:41,544 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:41,544 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:41,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:15:41,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:41,745 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:41,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:41,746 INFO L85 PathProgramCache]: Analyzing trace with hash 576528158, now seen corresponding path program 1 times [2024-10-31 22:15:41,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:41,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572159490] [2024-10-31 22:15:41,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:41,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:42,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:15:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:42,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:42,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:42,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572159490] [2024-10-31 22:15:42,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572159490] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:42,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714098383] [2024-10-31 22:15:42,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:42,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:42,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:42,167 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:42,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:15:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:42,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:15:42,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:42,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:42,803 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:42,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:42,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714098383] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:42,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:15:42,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-31 22:15:42,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085929673] [2024-10-31 22:15:42,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:42,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:15:42,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:42,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:15:42,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:42,855 INFO L87 Difference]: Start difference. First operand 174 states and 216 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:15:42,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:42,912 INFO L93 Difference]: Finished difference Result 351 states and 437 transitions. [2024-10-31 22:15:42,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:42,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-10-31 22:15:42,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:42,914 INFO L225 Difference]: With dead ends: 351 [2024-10-31 22:15:42,916 INFO L226 Difference]: Without dead ends: 183 [2024-10-31 22:15:42,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:42,918 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 4 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:42,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 630 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:42,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-10-31 22:15:42,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-10-31 22:15:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 137 states have (on average 1.4598540145985401) internal successors, (200), 167 states have internal predecessors, (200), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:42,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 225 transitions. [2024-10-31 22:15:42,939 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 225 transitions. Word has length 14 [2024-10-31 22:15:42,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:42,940 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 225 transitions. [2024-10-31 22:15:42,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:15:42,940 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 225 transitions. [2024-10-31 22:15:42,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-31 22:15:42,941 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:42,941 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:42,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:43,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:43,142 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:43,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:43,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1091712288, now seen corresponding path program 2 times [2024-10-31 22:15:43,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:43,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517623350] [2024-10-31 22:15:43,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:43,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:43,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:15:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:43,760 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:43,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:43,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517623350] [2024-10-31 22:15:43,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517623350] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:43,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871117379] [2024-10-31 22:15:43,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:15:43,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:43,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:43,764 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:43,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:15:44,369 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:15:44,369 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:15:44,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:15:44,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:44,457 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:15:44,457 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:44,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871117379] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:44,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:15:44,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-10-31 22:15:44,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396736856] [2024-10-31 22:15:44,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:44,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:15:44,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:44,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:15:44,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:15:44,460 INFO L87 Difference]: Start difference. First operand 183 states and 225 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 22:15:44,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:44,570 INFO L93 Difference]: Finished difference Result 183 states and 225 transitions. [2024-10-31 22:15:44,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:15:44,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 23 [2024-10-31 22:15:44,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:44,572 INFO L225 Difference]: With dead ends: 183 [2024-10-31 22:15:44,573 INFO L226 Difference]: Without dead ends: 181 [2024-10-31 22:15:44,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:15:44,574 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 71 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:44,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 715 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:44,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-10-31 22:15:44,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-10-31 22:15:44,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 137 states have (on average 1.4452554744525548) internal successors, (198), 165 states have internal predecessors, (198), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:44,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 223 transitions. [2024-10-31 22:15:44,593 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 223 transitions. Word has length 23 [2024-10-31 22:15:44,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:44,595 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 223 transitions. [2024-10-31 22:15:44,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 22:15:44,595 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 223 transitions. [2024-10-31 22:15:44,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-31 22:15:44,596 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:44,596 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:44,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:15:44,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-31 22:15:44,800 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:44,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:44,801 INFO L85 PathProgramCache]: Analyzing trace with hash -746064353, now seen corresponding path program 1 times [2024-10-31 22:15:44,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:44,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508123345] [2024-10-31 22:15:44,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:44,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:45,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:15:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:45,241 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:15:45,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:45,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508123345] [2024-10-31 22:15:45,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508123345] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:45,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:45,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:45,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981072936] [2024-10-31 22:15:45,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:45,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:45,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:45,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:45,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:45,245 INFO L87 Difference]: Start difference. First operand 181 states and 223 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 22:15:45,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:45,284 INFO L93 Difference]: Finished difference Result 344 states and 429 transitions. [2024-10-31 22:15:45,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:45,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 28 [2024-10-31 22:15:45,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:45,286 INFO L225 Difference]: With dead ends: 344 [2024-10-31 22:15:45,287 INFO L226 Difference]: Without dead ends: 184 [2024-10-31 22:15:45,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:45,288 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 1 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:45,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 414 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:45,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-10-31 22:15:45,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-10-31 22:15:45,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 140 states have (on average 1.4357142857142857) internal successors, (201), 168 states have internal predecessors, (201), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:45,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 226 transitions. [2024-10-31 22:15:45,303 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 226 transitions. Word has length 28 [2024-10-31 22:15:45,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:45,303 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 226 transitions. [2024-10-31 22:15:45,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 22:15:45,304 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 226 transitions. [2024-10-31 22:15:45,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-31 22:15:45,305 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:45,305 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:45,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:15:45,305 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:45,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:45,306 INFO L85 PathProgramCache]: Analyzing trace with hash 453008655, now seen corresponding path program 1 times [2024-10-31 22:15:45,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:45,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4050002] [2024-10-31 22:15:45,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:45,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:45,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:15:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:45,768 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:15:45,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:45,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4050002] [2024-10-31 22:15:45,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4050002] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:45,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263930894] [2024-10-31 22:15:45,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:45,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:45,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:45,771 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:45,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:15:46,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:46,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 1384 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:15:46,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:46,540 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:15:46,540 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:46,653 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:15:46,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263930894] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:46,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:15:46,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-10-31 22:15:46,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8808937] [2024-10-31 22:15:46,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:46,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-31 22:15:46,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:46,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-31 22:15:46,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:15:46,656 INFO L87 Difference]: Start difference. First operand 184 states and 226 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:15:46,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:46,816 INFO L93 Difference]: Finished difference Result 370 states and 460 transitions. [2024-10-31 22:15:46,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:15:46,817 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2024-10-31 22:15:46,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:46,819 INFO L225 Difference]: With dead ends: 370 [2024-10-31 22:15:46,819 INFO L226 Difference]: Without dead ends: 201 [2024-10-31 22:15:46,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:15:46,820 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 5 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:46,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1209 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:46,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-10-31 22:15:46,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2024-10-31 22:15:46,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 158 states have (on average 1.379746835443038) internal successors, (218), 185 states have internal predecessors, (218), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:46,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 243 transitions. [2024-10-31 22:15:46,830 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 243 transitions. Word has length 31 [2024-10-31 22:15:46,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:46,831 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 243 transitions. [2024-10-31 22:15:46,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:15:46,831 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 243 transitions. [2024-10-31 22:15:46,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-31 22:15:46,833 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:46,833 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:46,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:15:47,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:47,037 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:47,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:47,038 INFO L85 PathProgramCache]: Analyzing trace with hash 886452469, now seen corresponding path program 1 times [2024-10-31 22:15:47,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:47,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654102502] [2024-10-31 22:15:47,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:47,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:47,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:47,587 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-31 22:15:47,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:47,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654102502] [2024-10-31 22:15:47,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654102502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:47,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:47,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:47,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073183633] [2024-10-31 22:15:47,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:47,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:47,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:47,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:47,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:47,592 INFO L87 Difference]: Start difference. First operand 201 states and 243 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 22:15:47,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:47,620 INFO L93 Difference]: Finished difference Result 206 states and 248 transitions. [2024-10-31 22:15:47,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:47,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 49 [2024-10-31 22:15:47,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:47,623 INFO L225 Difference]: With dead ends: 206 [2024-10-31 22:15:47,623 INFO L226 Difference]: Without dead ends: 204 [2024-10-31 22:15:47,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:47,625 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 1 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 414 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 22:15:47,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 414 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:47,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-10-31 22:15:47,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2024-10-31 22:15:47,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 161 states have (on average 1.3726708074534162) internal successors, (221), 188 states have internal predecessors, (221), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:47,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 246 transitions. [2024-10-31 22:15:47,637 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 246 transitions. Word has length 49 [2024-10-31 22:15:47,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:47,638 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 246 transitions. [2024-10-31 22:15:47,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 22:15:47,639 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 246 transitions. [2024-10-31 22:15:47,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-31 22:15:47,640 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:47,642 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:47,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:15:47,642 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:47,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:47,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1345762853, now seen corresponding path program 1 times [2024-10-31 22:15:47,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:47,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928670073] [2024-10-31 22:15:47,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:47,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:48,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:48,087 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-31 22:15:48,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:48,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928670073] [2024-10-31 22:15:48,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928670073] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:48,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:48,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:48,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723320613] [2024-10-31 22:15:48,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:48,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:48,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:48,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:48,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:48,090 INFO L87 Difference]: Start difference. First operand 204 states and 246 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 22:15:48,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:48,135 INFO L93 Difference]: Finished difference Result 217 states and 261 transitions. [2024-10-31 22:15:48,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:48,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 50 [2024-10-31 22:15:48,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:48,137 INFO L225 Difference]: With dead ends: 217 [2024-10-31 22:15:48,138 INFO L226 Difference]: Without dead ends: 215 [2024-10-31 22:15:48,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:48,139 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 2 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:48,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 409 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:48,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-10-31 22:15:48,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 214. [2024-10-31 22:15:48,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 171 states have (on average 1.368421052631579) internal successors, (234), 198 states have internal predecessors, (234), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:48,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 259 transitions. [2024-10-31 22:15:48,149 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 259 transitions. Word has length 50 [2024-10-31 22:15:48,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:48,149 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 259 transitions. [2024-10-31 22:15:48,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 22:15:48,150 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 259 transitions. [2024-10-31 22:15:48,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-31 22:15:48,154 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:48,154 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:48,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:15:48,154 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:48,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:48,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1345761124, now seen corresponding path program 1 times [2024-10-31 22:15:48,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:48,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855687818] [2024-10-31 22:15:48,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:48,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:48,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:48,577 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-31 22:15:48,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:48,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855687818] [2024-10-31 22:15:48,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855687818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:48,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:48,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:48,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955970414] [2024-10-31 22:15:48,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:48,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:48,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:48,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:48,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:48,583 INFO L87 Difference]: Start difference. First operand 214 states and 259 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 22:15:48,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:48,609 INFO L93 Difference]: Finished difference Result 214 states and 259 transitions. [2024-10-31 22:15:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:48,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 50 [2024-10-31 22:15:48,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:48,619 INFO L225 Difference]: With dead ends: 214 [2024-10-31 22:15:48,619 INFO L226 Difference]: Without dead ends: 213 [2024-10-31 22:15:48,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:48,620 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:48,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 412 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:48,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-10-31 22:15:48,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 209. [2024-10-31 22:15:48,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 167 states have (on average 1.3652694610778444) internal successors, (228), 193 states have internal predecessors, (228), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:48,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 253 transitions. [2024-10-31 22:15:48,631 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 253 transitions. Word has length 50 [2024-10-31 22:15:48,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:48,631 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 253 transitions. [2024-10-31 22:15:48,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 22:15:48,632 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 253 transitions. [2024-10-31 22:15:48,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-31 22:15:48,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:48,637 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:48,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:15:48,637 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:48,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:48,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1447863062, now seen corresponding path program 1 times [2024-10-31 22:15:48,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:48,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095408370] [2024-10-31 22:15:48,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:48,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:49,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:49,145 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-31 22:15:49,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:49,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095408370] [2024-10-31 22:15:49,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095408370] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:49,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565970171] [2024-10-31 22:15:49,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:49,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:49,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:49,148 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:49,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:15:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:49,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:15:49,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:49,981 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-31 22:15:49,981 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:49,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565970171] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:49,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:15:49,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2024-10-31 22:15:49,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027542690] [2024-10-31 22:15:49,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:49,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:15:49,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:49,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:15:49,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:49,984 INFO L87 Difference]: Start difference. First operand 209 states and 253 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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 22:15:50,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:50,077 INFO L93 Difference]: Finished difference Result 260 states and 322 transitions. [2024-10-31 22:15:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:15:50,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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 52 [2024-10-31 22:15:50,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:50,080 INFO L225 Difference]: With dead ends: 260 [2024-10-31 22:15:50,080 INFO L226 Difference]: Without dead ends: 251 [2024-10-31 22:15:50,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:50,081 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 54 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:50,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 661 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:50,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-10-31 22:15:50,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 211. [2024-10-31 22:15:50,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 169 states have (on average 1.3609467455621302) internal successors, (230), 195 states have internal predecessors, (230), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:50,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 255 transitions. [2024-10-31 22:15:50,096 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 255 transitions. Word has length 52 [2024-10-31 22:15:50,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:50,097 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 255 transitions. [2024-10-31 22:15:50,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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 22:15:50,098 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 255 transitions. [2024-10-31 22:15:50,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-31 22:15:50,100 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:50,100 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:50,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 22:15:50,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-31 22:15:50,304 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:50,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:50,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1077935612, now seen corresponding path program 1 times [2024-10-31 22:15:50,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:50,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549843574] [2024-10-31 22:15:50,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:50,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:50,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:50,794 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-31 22:15:50,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:50,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549843574] [2024-10-31 22:15:50,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549843574] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:50,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958073406] [2024-10-31 22:15:50,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:50,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:50,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:50,797 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:50,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 22:15:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:51,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 1555 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:15:51,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:51,599 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-31 22:15:51,599 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:51,636 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-31 22:15:51,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958073406] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:51,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:15:51,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-31 22:15:51,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377514118] [2024-10-31 22:15:51,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:51,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:15:51,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:51,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:15:51,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:51,639 INFO L87 Difference]: Start difference. First operand 211 states and 255 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 22:15:51,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:51,687 INFO L93 Difference]: Finished difference Result 394 states and 484 transitions. [2024-10-31 22:15:51,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:51,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 58 [2024-10-31 22:15:51,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:51,690 INFO L225 Difference]: With dead ends: 394 [2024-10-31 22:15:51,690 INFO L226 Difference]: Without dead ends: 229 [2024-10-31 22:15:51,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:51,692 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 4 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:51,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 412 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:51,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-10-31 22:15:51,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2024-10-31 22:15:51,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 187 states have (on average 1.3262032085561497) internal successors, (248), 213 states have internal predecessors, (248), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:51,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 273 transitions. [2024-10-31 22:15:51,703 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 273 transitions. Word has length 58 [2024-10-31 22:15:51,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:51,704 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 273 transitions. [2024-10-31 22:15:51,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 22:15:51,704 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 273 transitions. [2024-10-31 22:15:51,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-31 22:15:51,705 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:51,705 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:15:51,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-31 22:15:51,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-31 22:15:51,906 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:51,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:51,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1163173981, now seen corresponding path program 1 times [2024-10-31 22:15:51,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:51,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897863962] [2024-10-31 22:15:51,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:51,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:52,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:52,358 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-31 22:15:52,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:52,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897863962] [2024-10-31 22:15:52,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897863962] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:52,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:52,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:15:52,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743078391] [2024-10-31 22:15:52,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:52,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:52,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:52,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:52,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:52,360 INFO L87 Difference]: Start difference. First operand 229 states and 273 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 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 22:15:52,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:52,389 INFO L93 Difference]: Finished difference Result 320 states and 384 transitions. [2024-10-31 22:15:52,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:52,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 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 63 [2024-10-31 22:15:52,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:52,392 INFO L225 Difference]: With dead ends: 320 [2024-10-31 22:15:52,392 INFO L226 Difference]: Without dead ends: 231 [2024-10-31 22:15:52,392 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 22:15:52,393 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:52,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 621 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:52,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-10-31 22:15:52,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2024-10-31 22:15:52,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 189 states have (on average 1.3227513227513228) internal successors, (250), 215 states have internal predecessors, (250), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:52,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 275 transitions. [2024-10-31 22:15:52,404 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 275 transitions. Word has length 63 [2024-10-31 22:15:52,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:52,404 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 275 transitions. [2024-10-31 22:15:52,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 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 22:15:52,405 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 275 transitions. [2024-10-31 22:15:52,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-31 22:15:52,406 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:52,406 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:15:52,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:15:52,406 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:52,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:52,407 INFO L85 PathProgramCache]: Analyzing trace with hash -196625148, now seen corresponding path program 1 times [2024-10-31 22:15:52,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:52,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914701333] [2024-10-31 22:15:52,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:52,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:52,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:52,815 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-31 22:15:52,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:52,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914701333] [2024-10-31 22:15:52,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914701333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:52,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:52,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:52,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319125887] [2024-10-31 22:15:52,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:52,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:52,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:52,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:52,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:52,818 INFO L87 Difference]: Start difference. First operand 231 states and 275 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (2), 1 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 22:15:52,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:52,840 INFO L93 Difference]: Finished difference Result 243 states and 290 transitions. [2024-10-31 22:15:52,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:52,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (2), 1 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 64 [2024-10-31 22:15:52,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:52,844 INFO L225 Difference]: With dead ends: 243 [2024-10-31 22:15:52,844 INFO L226 Difference]: Without dead ends: 241 [2024-10-31 22:15:52,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:52,845 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 6 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:52,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 413 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:52,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-10-31 22:15:52,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 235. [2024-10-31 22:15:52,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 193 states have (on average 1.3212435233160622) internal successors, (255), 219 states have internal predecessors, (255), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:52,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 280 transitions. [2024-10-31 22:15:52,857 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 280 transitions. Word has length 64 [2024-10-31 22:15:52,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:52,857 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 280 transitions. [2024-10-31 22:15:52,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (2), 1 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 22:15:52,858 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 280 transitions. [2024-10-31 22:15:52,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-31 22:15:52,859 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:52,859 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:15:52,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:15:52,859 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:52,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:52,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1093571194, now seen corresponding path program 1 times [2024-10-31 22:15:52,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:52,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870441762] [2024-10-31 22:15:52,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:52,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:53,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:53,296 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-31 22:15:53,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:53,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870441762] [2024-10-31 22:15:53,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870441762] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:53,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:53,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:15:53,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658282236] [2024-10-31 22:15:53,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:53,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:53,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:53,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:53,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:53,299 INFO L87 Difference]: Start difference. First operand 235 states and 280 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 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 22:15:53,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:53,323 INFO L93 Difference]: Finished difference Result 326 states and 391 transitions. [2024-10-31 22:15:53,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:53,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 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 67 [2024-10-31 22:15:53,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:53,325 INFO L225 Difference]: With dead ends: 326 [2024-10-31 22:15:53,325 INFO L226 Difference]: Without dead ends: 237 [2024-10-31 22:15:53,325 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 22:15:53,326 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:53,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 621 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:53,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-10-31 22:15:53,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2024-10-31 22:15:53,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 195 states have (on average 1.317948717948718) internal successors, (257), 221 states have internal predecessors, (257), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:53,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 282 transitions. [2024-10-31 22:15:53,359 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 282 transitions. Word has length 67 [2024-10-31 22:15:53,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:53,359 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 282 transitions. [2024-10-31 22:15:53,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 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 22:15:53,360 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 282 transitions. [2024-10-31 22:15:53,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-31 22:15:53,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:53,363 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:53,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:15:53,365 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:53,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:53,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1587750220, now seen corresponding path program 1 times [2024-10-31 22:15:53,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:53,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462298703] [2024-10-31 22:15:53,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:53,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:53,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:53,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 22:15:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:53,944 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-10-31 22:15:53,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:53,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462298703] [2024-10-31 22:15:53,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462298703] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:53,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:53,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:15:53,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043049280] [2024-10-31 22:15:53,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:53,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:53,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:53,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:53,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:53,949 INFO L87 Difference]: Start difference. First operand 237 states and 282 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:15:54,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:54,058 INFO L93 Difference]: Finished difference Result 407 states and 488 transitions. [2024-10-31 22:15:54,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:54,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 69 [2024-10-31 22:15:54,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:54,061 INFO L225 Difference]: With dead ends: 407 [2024-10-31 22:15:54,061 INFO L226 Difference]: Without dead ends: 326 [2024-10-31 22:15:54,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:15:54,062 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 167 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:54,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1233 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:54,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-10-31 22:15:54,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 244. [2024-10-31 22:15:54,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 202 states have (on average 1.316831683168317) internal successors, (266), 227 states have internal predecessors, (266), 14 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:54,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 291 transitions. [2024-10-31 22:15:54,078 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 291 transitions. Word has length 69 [2024-10-31 22:15:54,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:54,079 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 291 transitions. [2024-10-31 22:15:54,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:15:54,079 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 291 transitions. [2024-10-31 22:15:54,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-31 22:15:54,081 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:54,081 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:54,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 22:15:54,082 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:54,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:54,082 INFO L85 PathProgramCache]: Analyzing trace with hash -2027158706, now seen corresponding path program 1 times [2024-10-31 22:15:54,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:54,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882725380] [2024-10-31 22:15:54,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:54,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:54,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:54,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 22:15:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:54,880 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-10-31 22:15:54,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:54,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882725380] [2024-10-31 22:15:54,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882725380] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:54,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:54,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:15:54,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152753394] [2024-10-31 22:15:54,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:54,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:54,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:54,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:54,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:54,883 INFO L87 Difference]: Start difference. First operand 244 states and 291 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:15:54,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:54,928 INFO L93 Difference]: Finished difference Result 319 states and 379 transitions. [2024-10-31 22:15:54,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:54,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 69 [2024-10-31 22:15:54,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:54,931 INFO L225 Difference]: With dead ends: 319 [2024-10-31 22:15:54,932 INFO L226 Difference]: Without dead ends: 246 [2024-10-31 22:15:54,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:54,933 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 192 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:54,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 408 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:54,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-10-31 22:15:54,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2024-10-31 22:15:54,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 204 states have (on average 1.3137254901960784) internal successors, (268), 229 states have internal predecessors, (268), 14 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:54,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 293 transitions. [2024-10-31 22:15:54,953 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 293 transitions. Word has length 69 [2024-10-31 22:15:54,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:54,954 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 293 transitions. [2024-10-31 22:15:54,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:15:54,954 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 293 transitions. [2024-10-31 22:15:54,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-31 22:15:54,955 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:54,955 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:54,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-31 22:15:54,956 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:54,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:54,956 INFO L85 PathProgramCache]: Analyzing trace with hash -529653795, now seen corresponding path program 1 times [2024-10-31 22:15:54,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:54,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526866182] [2024-10-31 22:15:54,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:54,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:55,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:55,525 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-31 22:15:55,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:55,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526866182] [2024-10-31 22:15:55,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526866182] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:55,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264763086] [2024-10-31 22:15:55,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:55,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:55,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:55,529 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:55,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-31 22:15:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:56,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 1580 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:15:56,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:56,570 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-31 22:15:56,570 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:56,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264763086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:56,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:15:56,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-10-31 22:15:56,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648179747] [2024-10-31 22:15:56,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:56,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:56,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:56,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:56,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:56,572 INFO L87 Difference]: Start difference. First operand 246 states and 293 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 1 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 22:15:56,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:56,614 INFO L93 Difference]: Finished difference Result 252 states and 301 transitions. [2024-10-31 22:15:56,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:56,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 1 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 68 [2024-10-31 22:15:56,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:56,617 INFO L225 Difference]: With dead ends: 252 [2024-10-31 22:15:56,617 INFO L226 Difference]: Without dead ends: 251 [2024-10-31 22:15:56,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:56,618 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 11 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:56,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 624 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:56,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-10-31 22:15:56,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 245. [2024-10-31 22:15:56,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 204 states have (on average 1.3088235294117647) internal successors, (267), 228 states have internal predecessors, (267), 14 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:56,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 292 transitions. [2024-10-31 22:15:56,638 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 292 transitions. Word has length 68 [2024-10-31 22:15:56,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:56,640 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 292 transitions. [2024-10-31 22:15:56,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 1 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 22:15:56,641 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 292 transitions. [2024-10-31 22:15:56,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-31 22:15:56,642 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:56,642 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:56,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:56,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_237e7750-28c0-43a7-9ecc-d7e4a58d0779/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:56,847 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:56,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:56,847 INFO L85 PathProgramCache]: Analyzing trace with hash 2057853575, now seen corresponding path program 1 times [2024-10-31 22:15:56,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:56,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897593063] [2024-10-31 22:15:56,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:56,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:57,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:57,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 22:15:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:57,319 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-10-31 22:15:57,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:57,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897593063] [2024-10-31 22:15:57,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897593063] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:57,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:57,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:57,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87881099] [2024-10-31 22:15:57,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:57,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:57,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:57,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:57,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:57,321 INFO L87 Difference]: Start difference. First operand 245 states and 292 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:15:57,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:57,367 INFO L93 Difference]: Finished difference Result 253 states and 303 transitions. [2024-10-31 22:15:57,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:57,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 70 [2024-10-31 22:15:57,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:57,373 INFO L225 Difference]: With dead ends: 253 [2024-10-31 22:15:57,373 INFO L226 Difference]: Without dead ends: 251 [2024-10-31 22:15:57,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:57,374 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 3 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:57,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 405 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:57,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-10-31 22:15:57,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 249. [2024-10-31 22:15:57,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 208 states have (on average 1.3125) internal successors, (273), 232 states have internal predecessors, (273), 14 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:15:57,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 298 transitions. [2024-10-31 22:15:57,395 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 298 transitions. Word has length 70 [2024-10-31 22:15:57,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:57,395 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 298 transitions. [2024-10-31 22:15:57,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:15:57,396 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 298 transitions. [2024-10-31 22:15:57,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-31 22:15:57,397 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:57,397 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:57,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-31 22:15:57,398 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-10-31 22:15:57,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:57,398 INFO L85 PathProgramCache]: Analyzing trace with hash 760601583, now seen corresponding path program 1 times [2024-10-31 22:15:57,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:57,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178207094] [2024-10-31 22:15:57,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:57,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms