/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 15:05:10,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 15:05:10,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 15:05:10,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-07 15:05:10,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-07 15:05:10,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-07 15:05:10,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-07 15:05:10,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-07 15:05:10,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-07 15:05:10,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-07 15:05:10,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-07 15:05:10,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-07 15:05:10,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-07 15:05:10,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-07 15:05:10,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-07 15:05:10,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-07 15:05:10,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-07 15:05:10,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-07 15:05:10,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-07 15:05:10,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-07 15:05:10,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-07 15:05:10,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-07 15:05:10,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-07 15:05:10,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-07 15:05:10,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-07 15:05:10,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-07 15:05:10,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-07 15:05:10,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-07 15:05:10,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-07 15:05:10,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-07 15:05:10,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-07 15:05:10,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-07 15:05:10,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-07 15:05:10,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-07 15:05:10,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-07 15:05:10,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-07 15:05:10,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-07 15:05:10,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-07 15:05:10,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 15:05:10,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 15:05:10,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 15:05:10,563 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-07 15:05:10,621 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 15:05:10,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 15:05:10,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 15:05:10,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 15:05:10,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 15:05:10,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 15:05:10,629 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 15:05:10,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 15:05:10,630 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 15:05:10,630 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 15:05:10,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 15:05:10,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 15:05:10,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 15:05:10,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-07 15:05:10,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 15:05:10,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-07 15:05:10,633 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-07 15:05:10,633 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 15:05:10,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-07 15:05:10,633 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 15:05:10,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-07 15:05:10,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 15:05:10,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 15:05:10,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 15:05:10,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:05:10,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 15:05:10,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 15:05:10,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-07 15:05:10,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-07 15:05:10,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-07 15:05:10,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-07 15:05:10,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 15:05:10,637 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 15:05:11,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 15:05:11,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 15:05:11,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 15:05:11,103 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 15:05:11,105 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 15:05:11,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c [2021-10-07 15:05:11,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/723deedd3/3cdbe40a2a5d4f3ca847e9566a5934d6/FLAG36e0310ff [2021-10-07 15:05:12,024 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 15:05:12,025 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c [2021-10-07 15:05:12,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/723deedd3/3cdbe40a2a5d4f3ca847e9566a5934d6/FLAG36e0310ff [2021-10-07 15:05:12,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/723deedd3/3cdbe40a2a5d4f3ca847e9566a5934d6 [2021-10-07 15:05:12,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 15:05:12,331 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-07 15:05:12,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 15:05:12,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 15:05:12,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 15:05:12,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:05:12" (1/1) ... [2021-10-07 15:05:12,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f34138d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:12, skipping insertion in model container [2021-10-07 15:05:12,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:05:12" (1/1) ... [2021-10-07 15:05:12,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 15:05:12,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:05:12,665 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c[3502,3515] [2021-10-07 15:05:12,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:05:12,685 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 15:05:12,741 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c[3502,3515] [2021-10-07 15:05:12,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:05:12,766 INFO L208 MainTranslator]: Completed translation [2021-10-07 15:05:12,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:12 WrapperNode [2021-10-07 15:05:12,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 15:05:12,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 15:05:12,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 15:05:12,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 15:05:12,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:12" (1/1) ... [2021-10-07 15:05:12,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:12" (1/1) ... [2021-10-07 15:05:12,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 15:05:12,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 15:05:12,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 15:05:12,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 15:05:12,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:12" (1/1) ... [2021-10-07 15:05:12,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:12" (1/1) ... [2021-10-07 15:05:12,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:12" (1/1) ... [2021-10-07 15:05:12,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:12" (1/1) ... [2021-10-07 15:05:12,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:12" (1/1) ... [2021-10-07 15:05:12,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:12" (1/1) ... [2021-10-07 15:05:12,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:12" (1/1) ... [2021-10-07 15:05:12,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 15:05:12,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 15:05:12,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 15:05:12,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 15:05:12,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:12" (1/1) ... [2021-10-07 15:05:12,894 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:05:12,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:05:12,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-07 15:05:12,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-07 15:05:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 15:05:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-07 15:05:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-07 15:05:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 15:05:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 15:05:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 15:05:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 15:05:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-07 15:05:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-07 15:05:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-07 15:05:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-07 15:05:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-07 15:05:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-07 15:05:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-07 15:05:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-07 15:05:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 15:05:13,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 15:05:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 15:05:13,079 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 15:05:14,513 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 15:05:14,513 INFO L299 CfgBuilder]: Removed 45 assume(true) statements. [2021-10-07 15:05:14,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:05:14 BoogieIcfgContainer [2021-10-07 15:05:14,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 15:05:14,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 15:05:14,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 15:05:14,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 15:05:14,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:05:12" (1/3) ... [2021-10-07 15:05:14,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727d440f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:05:14, skipping insertion in model container [2021-10-07 15:05:14,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:05:12" (2/3) ... [2021-10-07 15:05:14,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727d440f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:05:14, skipping insertion in model container [2021-10-07 15:05:14,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:05:14" (3/3) ... [2021-10-07 15:05:14,530 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series.wvr.c [2021-10-07 15:05:14,537 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-07 15:05:14,537 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 15:05:14,538 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2021-10-07 15:05:14,538 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 15:05:14,586 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,587 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,587 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,587 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,587 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,588 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,588 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,588 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,588 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,588 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,589 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,589 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,589 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,589 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,589 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,590 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,590 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,590 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,590 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,590 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,590 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,592 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,592 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,592 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,592 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,592 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,593 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,593 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,593 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,593 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,593 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,594 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,594 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,594 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,594 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,595 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,596 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,596 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,596 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,596 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,596 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,597 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,597 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,597 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,597 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,597 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,598 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,598 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,598 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,598 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,598 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,599 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,599 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,599 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,599 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,600 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,600 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,600 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,600 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,600 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,604 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,605 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,605 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,605 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,606 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,606 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,606 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,606 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,606 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,607 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,607 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,607 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,607 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,607 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,607 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,608 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,608 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,608 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,608 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,608 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,609 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,610 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,610 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,610 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,610 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,611 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,611 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,612 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,612 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,612 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,612 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,612 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,613 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,613 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,613 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,613 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,614 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,614 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,614 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,614 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,614 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,615 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,615 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,615 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,615 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,616 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,617 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,617 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,617 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,617 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,617 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,618 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,618 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,618 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,618 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,618 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,618 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,619 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,619 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,619 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,619 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,619 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,620 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,620 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,620 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,620 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,621 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,622 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,622 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,622 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,622 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,623 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,623 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,623 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,623 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,623 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,624 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,624 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,624 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,624 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,625 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,625 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,625 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,626 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,626 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,626 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,626 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,626 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,627 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,627 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,627 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,627 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,627 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,628 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,628 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,628 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,628 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,628 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,629 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,629 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,629 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,629 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,629 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,630 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,630 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,630 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,630 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,635 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,635 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,636 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,636 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,636 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,636 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,637 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,637 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,639 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,640 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,640 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,640 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,640 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,640 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,642 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,643 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,643 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,643 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,643 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,644 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,644 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,644 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,646 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,646 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,646 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,647 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,647 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,647 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:05:14,657 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-07 15:05:14,713 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 15:05:14,722 INFO L339 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, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-07 15:05:14,722 INFO L340 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2021-10-07 15:05:14,744 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 15:05:14,760 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 262 transitions, 556 flow [2021-10-07 15:05:14,764 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 262 transitions, 556 flow [2021-10-07 15:05:14,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 253 places, 262 transitions, 556 flow [2021-10-07 15:05:14,873 INFO L129 PetriNetUnfolder]: 22/258 cut-off events. [2021-10-07 15:05:14,874 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-07 15:05:14,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 258 events. 22/258 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 229 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 221. Up to 2 conditions per place. [2021-10-07 15:05:14,888 INFO L116 LiptonReduction]: Number of co-enabled transitions 2916 [2021-10-07 15:05:28,542 INFO L131 LiptonReduction]: Checked pairs total: 9546 [2021-10-07 15:05:28,542 INFO L133 LiptonReduction]: Total number of compositions: 265 [2021-10-07 15:05:28,554 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 63 transitions, 158 flow [2021-10-07 15:05:29,034 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8193 states, 7313 states have (on average 4.861753042527007) internal successors, (35554), 8192 states have internal predecessors, (35554), 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) [2021-10-07 15:05:29,099 INFO L276 IsEmpty]: Start isEmpty. Operand has 8193 states, 7313 states have (on average 4.861753042527007) internal successors, (35554), 8192 states have internal predecessors, (35554), 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) [2021-10-07 15:05:29,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 15:05:29,108 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:05:29,109 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 15:05:29,110 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-10-07 15:05:29,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:05:29,120 INFO L82 PathProgramCache]: Analyzing trace with hash 37515, now seen corresponding path program 1 times [2021-10-07 15:05:29,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:05:29,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378299246] [2021-10-07 15:05:29,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:29,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:05:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:29,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:05:29,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378299246] [2021-10-07 15:05:29,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378299246] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:05:29,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:05:29,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-07 15:05:29,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401259070] [2021-10-07 15:05:29,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:05:29,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:05:29,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:05:29,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:05:29,450 INFO L87 Difference]: Start difference. First operand has 8193 states, 7313 states have (on average 4.861753042527007) internal successors, (35554), 8192 states have internal predecessors, (35554), 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) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-10-07 15:05:30,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:05:30,057 INFO L93 Difference]: Finished difference Result 9599 states and 41391 transitions. [2021-10-07 15:05:30,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:05:30,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-10-07 15:05:30,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:05:30,312 INFO L225 Difference]: With dead ends: 9599 [2021-10-07 15:05:30,313 INFO L226 Difference]: Without dead ends: 9599 [2021-10-07 15:05:30,314 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:05:30,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9599 states. [2021-10-07 15:05:30,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9599 to 4806. [2021-10-07 15:05:30,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4806 states, 4417 states have (on average 4.6875707493774055) internal successors, (20705), 4805 states have internal predecessors, (20705), 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) [2021-10-07 15:05:30,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 20705 transitions. [2021-10-07 15:05:30,986 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 20705 transitions. Word has length 2 [2021-10-07 15:05:30,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:05:30,993 INFO L470 AbstractCegarLoop]: Abstraction has 4806 states and 20705 transitions. [2021-10-07 15:05:30,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-10-07 15:05:30,994 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 20705 transitions. [2021-10-07 15:05:30,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:05:30,994 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:05:30,995 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:05:30,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-07 15:05:30,998 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-10-07 15:05:30,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:05:30,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1164055, now seen corresponding path program 1 times [2021-10-07 15:05:30,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:05:30,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136736753] [2021-10-07 15:05:30,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:30,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:05:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:31,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:05:31,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136736753] [2021-10-07 15:05:31,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136736753] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:05:31,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927001662] [2021-10-07 15:05:31,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:31,119 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:31,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:05:31,122 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:05:31,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-07 15:05:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:31,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:05:31,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:05:31,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:31,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927001662] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:05:31,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:05:31,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-07 15:05:31,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740452763] [2021-10-07 15:05:31,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:05:31,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:05:31,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:05:31,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:05:31,315 INFO L87 Difference]: Start difference. First operand 4806 states and 20705 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-10-07 15:05:31,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:05:31,849 INFO L93 Difference]: Finished difference Result 14395 states and 62086 transitions. [2021-10-07 15:05:31,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:05:31,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 3 [2021-10-07 15:05:31,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:05:32,049 INFO L225 Difference]: With dead ends: 14395 [2021-10-07 15:05:32,049 INFO L226 Difference]: Without dead ends: 14395 [2021-10-07 15:05:32,050 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:05:32,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14395 states. [2021-10-07 15:05:32,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14395 to 4809. [2021-10-07 15:05:32,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4809 states, 4420 states have (on average 4.686425339366516) internal successors, (20714), 4808 states have internal predecessors, (20714), 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) [2021-10-07 15:05:32,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4809 states to 4809 states and 20714 transitions. [2021-10-07 15:05:32,709 INFO L78 Accepts]: Start accepts. Automaton has 4809 states and 20714 transitions. Word has length 3 [2021-10-07 15:05:32,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:05:32,710 INFO L470 AbstractCegarLoop]: Abstraction has 4809 states and 20714 transitions. [2021-10-07 15:05:32,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-10-07 15:05:32,711 INFO L276 IsEmpty]: Start isEmpty. Operand 4809 states and 20714 transitions. [2021-10-07 15:05:32,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:05:32,712 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:05:32,712 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:05:32,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-07 15:05:32,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:32,927 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-10-07 15:05:32,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:05:32,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1164056, now seen corresponding path program 1 times [2021-10-07 15:05:32,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:05:32,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213137973] [2021-10-07 15:05:32,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:32,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:05:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:32,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:32,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:05:32,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213137973] [2021-10-07 15:05:32,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213137973] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:05:32,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152548695] [2021-10-07 15:05:32,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:32,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:32,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:05:32,994 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:05:32,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-07 15:05:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:33,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:05:33,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:05:33,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:33,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152548695] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:05:33,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:05:33,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2021-10-07 15:05:33,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145646503] [2021-10-07 15:05:33,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:05:33,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:05:33,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:05:33,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:05:33,101 INFO L87 Difference]: Start difference. First operand 4809 states and 20714 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-10-07 15:05:33,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:05:33,596 INFO L93 Difference]: Finished difference Result 9599 states and 41394 transitions. [2021-10-07 15:05:33,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:05:33,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2021-10-07 15:05:33,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:05:33,826 INFO L225 Difference]: With dead ends: 9599 [2021-10-07 15:05:33,827 INFO L226 Difference]: Without dead ends: 9599 [2021-10-07 15:05:33,827 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:05:33,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9599 states. [2021-10-07 15:05:34,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9599 to 4806. [2021-10-07 15:05:34,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4806 states, 4420 states have (on average 4.685067873303168) internal successors, (20708), 4805 states have internal predecessors, (20708), 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) [2021-10-07 15:05:34,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 20708 transitions. [2021-10-07 15:05:34,223 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 20708 transitions. Word has length 3 [2021-10-07 15:05:34,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:05:34,224 INFO L470 AbstractCegarLoop]: Abstraction has 4806 states and 20708 transitions. [2021-10-07 15:05:34,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-10-07 15:05:34,224 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 20708 transitions. [2021-10-07 15:05:34,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 15:05:34,225 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:05:34,225 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-07 15:05:34,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-07 15:05:34,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:34,439 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-10-07 15:05:34,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:05:34,441 INFO L82 PathProgramCache]: Analyzing trace with hash 36086795, now seen corresponding path program 2 times [2021-10-07 15:05:34,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:05:34,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811057799] [2021-10-07 15:05:34,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:34,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:05:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:34,558 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:34,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:05:34,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811057799] [2021-10-07 15:05:34,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811057799] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:05:34,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696592669] [2021-10-07 15:05:34,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:05:34,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:34,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:05:34,561 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:05:34,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-07 15:05:34,662 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:05:34,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:05:34,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-07 15:05:34,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:05:34,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-07 15:05:34,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696592669] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:05:34,690 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:05:34,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-07 15:05:34,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599369678] [2021-10-07 15:05:34,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:05:34,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:05:34,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:05:34,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:05:34,693 INFO L87 Difference]: Start difference. First operand 4806 states and 20708 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-10-07 15:05:34,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:05:34,848 INFO L93 Difference]: Finished difference Result 4805 states and 20707 transitions. [2021-10-07 15:05:34,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:05:34,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 [2021-10-07 15:05:34,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:05:34,917 INFO L225 Difference]: With dead ends: 4805 [2021-10-07 15:05:34,918 INFO L226 Difference]: Without dead ends: 4805 [2021-10-07 15:05:34,918 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 13.6ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:05:35,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4805 states. [2021-10-07 15:05:35,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4805 to 4803. [2021-10-07 15:05:35,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4803 states, 4418 states have (on average 4.686057039384337) internal successors, (20703), 4802 states have internal predecessors, (20703), 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) [2021-10-07 15:05:35,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4803 states to 4803 states and 20703 transitions. [2021-10-07 15:05:35,531 INFO L78 Accepts]: Start accepts. Automaton has 4803 states and 20703 transitions. Word has length 4 [2021-10-07 15:05:35,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:05:35,531 INFO L470 AbstractCegarLoop]: Abstraction has 4803 states and 20703 transitions. [2021-10-07 15:05:35,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-10-07 15:05:35,533 INFO L276 IsEmpty]: Start isEmpty. Operand 4803 states and 20703 transitions. [2021-10-07 15:05:35,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:05:35,534 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:05:35,534 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2021-10-07 15:05:35,578 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-07 15:05:35,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:35,749 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-10-07 15:05:35,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:05:35,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1119333207, now seen corresponding path program 1 times [2021-10-07 15:05:35,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:05:35,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855802043] [2021-10-07 15:05:35,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:35,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:05:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:35,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:35,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:05:35,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855802043] [2021-10-07 15:05:35,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855802043] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:05:35,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847603583] [2021-10-07 15:05:35,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:35,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:35,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:05:35,808 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:05:35,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-07 15:05:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:35,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-07 15:05:35,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:05:35,921 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:35,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847603583] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:05:35,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:05:35,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-07 15:05:35,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750418818] [2021-10-07 15:05:35,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 15:05:35,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:05:35,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 15:05:35,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:05:35,924 INFO L87 Difference]: Start difference. First operand 4803 states and 20703 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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) [2021-10-07 15:05:36,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:05:36,320 INFO L93 Difference]: Finished difference Result 19187 states and 82771 transitions. [2021-10-07 15:05:36,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:05:36,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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 5 [2021-10-07 15:05:36,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:05:36,594 INFO L225 Difference]: With dead ends: 19187 [2021-10-07 15:05:36,594 INFO L226 Difference]: Without dead ends: 19187 [2021-10-07 15:05:36,595 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:05:36,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19187 states. [2021-10-07 15:05:37,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19187 to 4805. [2021-10-07 15:05:37,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4805 states, 4420 states have (on average 4.684841628959276) internal successors, (20707), 4804 states have internal predecessors, (20707), 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) [2021-10-07 15:05:37,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4805 states to 4805 states and 20707 transitions. [2021-10-07 15:05:37,257 INFO L78 Accepts]: Start accepts. Automaton has 4805 states and 20707 transitions. Word has length 5 [2021-10-07 15:05:37,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:05:37,257 INFO L470 AbstractCegarLoop]: Abstraction has 4805 states and 20707 transitions. [2021-10-07 15:05:37,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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) [2021-10-07 15:05:37,258 INFO L276 IsEmpty]: Start isEmpty. Operand 4805 states and 20707 transitions. [2021-10-07 15:05:37,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-07 15:05:37,258 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:05:37,258 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1] [2021-10-07 15:05:37,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-07 15:05:37,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:37,475 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-10-07 15:05:37,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:05:37,476 INFO L82 PathProgramCache]: Analyzing trace with hash 339592965, now seen corresponding path program 2 times [2021-10-07 15:05:37,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:05:37,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942463226] [2021-10-07 15:05:37,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:37,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:05:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:37,570 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:37,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:05:37,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942463226] [2021-10-07 15:05:37,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942463226] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:05:37,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784761024] [2021-10-07 15:05:37,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:05:37,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:37,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:05:37,580 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:05:37,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-07 15:05:37,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:05:37,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:05:37,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-07 15:05:37,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:05:37,686 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-07 15:05:37,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784761024] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:05:37,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:05:37,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 7 [2021-10-07 15:05:37,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828001475] [2021-10-07 15:05:37,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:05:37,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:05:37,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:05:37,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:05:37,689 INFO L87 Difference]: Start difference. First operand 4805 states and 20707 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) 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) [2021-10-07 15:05:37,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:05:37,916 INFO L93 Difference]: Finished difference Result 3614 states and 15506 transitions. [2021-10-07 15:05:37,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:05:37,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) 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 6 [2021-10-07 15:05:37,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:05:37,944 INFO L225 Difference]: With dead ends: 3614 [2021-10-07 15:05:37,944 INFO L226 Difference]: Without dead ends: 3614 [2021-10-07 15:05:37,945 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 145.5ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:05:37,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2021-10-07 15:05:38,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 3611. [2021-10-07 15:05:38,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3611 states, 3371 states have (on average 4.598042123998813) internal successors, (15500), 3610 states have internal predecessors, (15500), 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) [2021-10-07 15:05:38,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3611 states to 3611 states and 15500 transitions. [2021-10-07 15:05:38,103 INFO L78 Accepts]: Start accepts. Automaton has 3611 states and 15500 transitions. Word has length 6 [2021-10-07 15:05:38,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:05:38,103 INFO L470 AbstractCegarLoop]: Abstraction has 3611 states and 15500 transitions. [2021-10-07 15:05:38,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) 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) [2021-10-07 15:05:38,104 INFO L276 IsEmpty]: Start isEmpty. Operand 3611 states and 15500 transitions. [2021-10-07 15:05:38,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-07 15:05:38,104 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:05:38,104 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-07 15:05:38,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-07 15:05:38,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:38,318 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-10-07 15:05:38,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:05:38,318 INFO L82 PathProgramCache]: Analyzing trace with hash 340543652, now seen corresponding path program 1 times [2021-10-07 15:05:38,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:05:38,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919430631] [2021-10-07 15:05:38,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:38,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:05:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:38,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:38,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:05:38,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919430631] [2021-10-07 15:05:38,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919430631] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:05:38,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:05:38,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-07 15:05:38,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158385155] [2021-10-07 15:05:38,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:05:38,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:05:38,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:05:38,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:05:38,425 INFO L87 Difference]: Start difference. First operand 3611 states and 15500 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-10-07 15:05:38,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:05:38,512 INFO L93 Difference]: Finished difference Result 6173 states and 26441 transitions. [2021-10-07 15:05:38,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:05:38,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-10-07 15:05:38,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:05:38,558 INFO L225 Difference]: With dead ends: 6173 [2021-10-07 15:05:38,558 INFO L226 Difference]: Without dead ends: 6173 [2021-10-07 15:05:38,558 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:05:38,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6173 states. [2021-10-07 15:05:38,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6173 to 4131. [2021-10-07 15:05:38,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 3891 states have (on average 4.834232845026985) internal successors, (18810), 4130 states have internal predecessors, (18810), 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) [2021-10-07 15:05:39,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 18810 transitions. [2021-10-07 15:05:39,016 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 18810 transitions. Word has length 6 [2021-10-07 15:05:39,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:05:39,018 INFO L470 AbstractCegarLoop]: Abstraction has 4131 states and 18810 transitions. [2021-10-07 15:05:39,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-10-07 15:05:39,022 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 18810 transitions. [2021-10-07 15:05:39,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-07 15:05:39,022 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:05:39,023 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-07 15:05:39,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-07 15:05:39,023 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-10-07 15:05:39,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:05:39,024 INFO L82 PathProgramCache]: Analyzing trace with hash 340543563, now seen corresponding path program 1 times [2021-10-07 15:05:39,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:05:39,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327766928] [2021-10-07 15:05:39,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:39,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:05:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:39,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:39,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:05:39,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327766928] [2021-10-07 15:05:39,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327766928] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:05:39,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:05:39,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:05:39,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632664468] [2021-10-07 15:05:39,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:05:39,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:05:39,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:05:39,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:05:39,111 INFO L87 Difference]: Start difference. First operand 4131 states and 18810 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-07 15:05:39,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:05:39,219 INFO L93 Difference]: Finished difference Result 4917 states and 21549 transitions. [2021-10-07 15:05:39,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:05:39,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-10-07 15:05:39,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:05:39,264 INFO L225 Difference]: With dead ends: 4917 [2021-10-07 15:05:39,264 INFO L226 Difference]: Without dead ends: 4899 [2021-10-07 15:05:39,265 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:05:39,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4899 states. [2021-10-07 15:05:39,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4899 to 4732. [2021-10-07 15:05:39,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4732 states, 4478 states have (on average 4.702099151406878) internal successors, (21056), 4731 states have internal predecessors, (21056), 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) [2021-10-07 15:05:39,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4732 states to 4732 states and 21056 transitions. [2021-10-07 15:05:39,632 INFO L78 Accepts]: Start accepts. Automaton has 4732 states and 21056 transitions. Word has length 6 [2021-10-07 15:05:39,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:05:39,632 INFO L470 AbstractCegarLoop]: Abstraction has 4732 states and 21056 transitions. [2021-10-07 15:05:39,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-07 15:05:39,633 INFO L276 IsEmpty]: Start isEmpty. Operand 4732 states and 21056 transitions. [2021-10-07 15:05:39,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:05:39,633 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:05:39,633 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:05:39,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-07 15:05:39,634 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-10-07 15:05:39,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:05:39,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1341805271, now seen corresponding path program 1 times [2021-10-07 15:05:39,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:05:39,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386022489] [2021-10-07 15:05:39,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:39,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:05:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:39,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:39,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:05:39,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386022489] [2021-10-07 15:05:39,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386022489] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:05:39,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894469069] [2021-10-07 15:05:39,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:39,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:39,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:05:39,716 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:05:39,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-07 15:05:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:39,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-07 15:05:39,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:05:39,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:05:39,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894469069] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:05:39,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:05:39,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2021-10-07 15:05:39,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468090262] [2021-10-07 15:05:39,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:05:39,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:05:39,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:05:39,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:05:39,916 INFO L87 Difference]: Start difference. First operand 4732 states and 21056 transitions. Second operand has 5 states, 4 states have (on average 1.75) 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) [2021-10-07 15:05:40,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:05:40,101 INFO L93 Difference]: Finished difference Result 6038 states and 25762 transitions. [2021-10-07 15:05:40,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:05:40,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) 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 [2021-10-07 15:05:40,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:05:40,146 INFO L225 Difference]: With dead ends: 6038 [2021-10-07 15:05:40,146 INFO L226 Difference]: Without dead ends: 6036 [2021-10-07 15:05:40,147 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 49.9ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:05:40,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2021-10-07 15:05:40,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 5030. [2021-10-07 15:05:40,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 4836 states have (on average 4.748966087675765) internal successors, (22966), 5029 states have internal predecessors, (22966), 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) [2021-10-07 15:05:40,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 22966 transitions. [2021-10-07 15:05:40,564 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 22966 transitions. Word has length 7 [2021-10-07 15:05:40,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:05:40,565 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 22966 transitions. [2021-10-07 15:05:40,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) 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) [2021-10-07 15:05:40,565 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 22966 transitions. [2021-10-07 15:05:40,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:05:40,566 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:05:40,566 INFO L512 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1] [2021-10-07 15:05:40,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-07 15:05:40,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:40,781 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-10-07 15:05:40,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:05:40,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1967679175, now seen corresponding path program 1 times [2021-10-07 15:05:40,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:05:40,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352096197] [2021-10-07 15:05:40,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:40,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:05:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:40,838 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:40,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:05:40,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352096197] [2021-10-07 15:05:40,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352096197] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:05:40,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124369161] [2021-10-07 15:05:40,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:40,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:40,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:05:40,841 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:05:40,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-07 15:05:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:40,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-07 15:05:40,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:05:40,979 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:40,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124369161] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:05:40,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:05:40,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-07 15:05:40,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498379404] [2021-10-07 15:05:40,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-07 15:05:40,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:05:40,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-07 15:05:40,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-07 15:05:40,983 INFO L87 Difference]: Start difference. First operand 5030 states and 22966 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 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) [2021-10-07 15:05:41,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:05:41,350 INFO L93 Difference]: Finished difference Result 18573 states and 81813 transitions. [2021-10-07 15:05:41,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-07 15:05:41,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 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 [2021-10-07 15:05:41,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:05:41,546 INFO L225 Difference]: With dead ends: 18573 [2021-10-07 15:05:41,547 INFO L226 Difference]: Without dead ends: 18573 [2021-10-07 15:05:41,547 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 15.6ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-07 15:05:41,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18573 states. [2021-10-07 15:05:42,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18573 to 5032. [2021-10-07 15:05:42,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5032 states, 4838 states have (on average 4.747829681686647) internal successors, (22970), 5031 states have internal predecessors, (22970), 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) [2021-10-07 15:05:42,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5032 states to 5032 states and 22970 transitions. [2021-10-07 15:05:42,282 INFO L78 Accepts]: Start accepts. Automaton has 5032 states and 22970 transitions. Word has length 7 [2021-10-07 15:05:42,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:05:42,283 INFO L470 AbstractCegarLoop]: Abstraction has 5032 states and 22970 transitions. [2021-10-07 15:05:42,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 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) [2021-10-07 15:05:42,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5032 states and 22970 transitions. [2021-10-07 15:05:42,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-07 15:05:42,284 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:05:42,284 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:05:42,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-07 15:05:42,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-07 15:05:42,498 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-10-07 15:05:42,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:05:42,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1352970821, now seen corresponding path program 1 times [2021-10-07 15:05:42,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:05:42,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445817168] [2021-10-07 15:05:42,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:42,500 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:05:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:42,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:05:42,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:05:42,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445817168] [2021-10-07 15:05:42,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445817168] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:05:42,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384072927] [2021-10-07 15:05:42,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:42,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:42,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:05:42,591 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:05:42,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-07 15:05:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:42,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:05:42,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:05:42,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-07 15:05:42,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384072927] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:05:42,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:05:42,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-07 15:05:42,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483435833] [2021-10-07 15:05:42,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:05:42,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:05:42,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:05:42,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:05:42,739 INFO L87 Difference]: Start difference. First operand 5032 states and 22970 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2021-10-07 15:05:42,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:05:42,789 INFO L93 Difference]: Finished difference Result 3896 states and 17361 transitions. [2021-10-07 15:05:42,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:05:42,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 [2021-10-07 15:05:42,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:05:42,817 INFO L225 Difference]: With dead ends: 3896 [2021-10-07 15:05:42,818 INFO L226 Difference]: Without dead ends: 3896 [2021-10-07 15:05:42,818 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 14.9ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:05:42,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3896 states. [2021-10-07 15:05:43,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3896 to 3896. [2021-10-07 15:05:43,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3792 states have (on average 4.578322784810126) internal successors, (17361), 3895 states have internal predecessors, (17361), 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) [2021-10-07 15:05:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 17361 transitions. [2021-10-07 15:05:43,109 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 17361 transitions. Word has length 8 [2021-10-07 15:05:43,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:05:43,110 INFO L470 AbstractCegarLoop]: Abstraction has 3896 states and 17361 transitions. [2021-10-07 15:05:43,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2021-10-07 15:05:43,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 17361 transitions. [2021-10-07 15:05:43,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-07 15:05:43,112 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:05:43,112 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:05:43,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-07 15:05:43,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-07 15:05:43,328 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-10-07 15:05:43,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:05:43,329 INFO L82 PathProgramCache]: Analyzing trace with hash 845005306, now seen corresponding path program 1 times [2021-10-07 15:05:43,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:05:43,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631476924] [2021-10-07 15:05:43,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:43,331 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:05:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:43,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:43,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:05:43,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631476924] [2021-10-07 15:05:43,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631476924] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:05:43,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:05:43,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 15:05:43,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053819993] [2021-10-07 15:05:43,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:05:43,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:05:43,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:05:43,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:05:43,385 INFO L87 Difference]: Start difference. First operand 3896 states and 17361 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-10-07 15:05:43,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:05:43,571 INFO L93 Difference]: Finished difference Result 6024 states and 25057 transitions. [2021-10-07 15:05:43,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-07 15:05:43,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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 [2021-10-07 15:05:43,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:05:43,599 INFO L225 Difference]: With dead ends: 6024 [2021-10-07 15:05:43,599 INFO L226 Difference]: Without dead ends: 5976 [2021-10-07 15:05:43,600 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.3ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:05:43,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2021-10-07 15:05:43,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 4356. [2021-10-07 15:05:43,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4356 states, 4252 states have (on average 4.698730009407337) internal successors, (19979), 4355 states have internal predecessors, (19979), 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) [2021-10-07 15:05:43,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4356 states to 4356 states and 19979 transitions. [2021-10-07 15:05:43,807 INFO L78 Accepts]: Start accepts. Automaton has 4356 states and 19979 transitions. Word has length 8 [2021-10-07 15:05:43,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:05:43,807 INFO L470 AbstractCegarLoop]: Abstraction has 4356 states and 19979 transitions. [2021-10-07 15:05:43,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-10-07 15:05:43,808 INFO L276 IsEmpty]: Start isEmpty. Operand 4356 states and 19979 transitions. [2021-10-07 15:05:43,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-07 15:05:43,808 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:05:43,808 INFO L512 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2021-10-07 15:05:43,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-07 15:05:43,809 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-10-07 15:05:43,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:05:43,809 INFO L82 PathProgramCache]: Analyzing trace with hash 868513739, now seen corresponding path program 2 times [2021-10-07 15:05:43,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:05:43,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876667462] [2021-10-07 15:05:43,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:43,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:05:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:43,869 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:05:43,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:05:43,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876667462] [2021-10-07 15:05:43,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876667462] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-07 15:05:43,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706517887] [2021-10-07 15:05:43,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:05:43,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:43,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:05:43,875 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 15:05:43,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-07 15:05:44,040 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:05:44,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:05:44,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-07 15:05:44,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:05:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-07 15:05:44,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706517887] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:05:44,087 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:05:44,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2021-10-07 15:05:44,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441424478] [2021-10-07 15:05:44,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:05:44,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:05:44,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:05:44,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:05:44,089 INFO L87 Difference]: Start difference. First operand 4356 states and 19979 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-07 15:05:44,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:05:44,163 INFO L93 Difference]: Finished difference Result 3475 states and 15898 transitions. [2021-10-07 15:05:44,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:05:44,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 [2021-10-07 15:05:44,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:05:44,177 INFO L225 Difference]: With dead ends: 3475 [2021-10-07 15:05:44,178 INFO L226 Difference]: Without dead ends: 3469 [2021-10-07 15:05:44,178 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 35.2ms TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:05:44,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3469 states. [2021-10-07 15:05:44,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3469 to 2561. [2021-10-07 15:05:44,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2561 states, 2515 states have (on average 4.461630218687873) internal successors, (11221), 2560 states have internal predecessors, (11221), 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) [2021-10-07 15:05:44,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 11221 transitions. [2021-10-07 15:05:44,296 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 11221 transitions. Word has length 8 [2021-10-07 15:05:44,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:05:44,296 INFO L470 AbstractCegarLoop]: Abstraction has 2561 states and 11221 transitions. [2021-10-07 15:05:44,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-07 15:05:44,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 11221 transitions. [2021-10-07 15:05:44,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-07 15:05:44,297 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:05:44,298 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:05:44,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-07 15:05:44,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 15:05:44,511 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-10-07 15:05:44,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:05:44,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1130615158, now seen corresponding path program 1 times [2021-10-07 15:05:44,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:05:44,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333546265] [2021-10-07 15:05:44,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:44,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:05:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:05:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 15:05:44,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:05:44,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333546265] [2021-10-07 15:05:44,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333546265] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:05:44,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:05:44,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 15:05:44,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597960832] [2021-10-07 15:05:44,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:05:44,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:05:44,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:05:44,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:05:44,585 INFO L87 Difference]: Start difference. First operand 2561 states and 11221 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-07 15:05:44,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:05:44,685 INFO L93 Difference]: Finished difference Result 3337 states and 13605 transitions. [2021-10-07 15:05:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:05:44,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-10-07 15:05:44,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:05:44,702 INFO L225 Difference]: With dead ends: 3337 [2021-10-07 15:05:44,702 INFO L226 Difference]: Without dead ends: 3061 [2021-10-07 15:05:44,703 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:05:44,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3061 states. [2021-10-07 15:05:44,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3061 to 2831. [2021-10-07 15:05:44,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2831 states, 2783 states have (on average 4.377290693496227) internal successors, (12182), 2830 states have internal predecessors, (12182), 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) [2021-10-07 15:05:44,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 12182 transitions. [2021-10-07 15:05:44,810 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 12182 transitions. Word has length 9 [2021-10-07 15:05:44,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:05:44,811 INFO L470 AbstractCegarLoop]: Abstraction has 2831 states and 12182 transitions. [2021-10-07 15:05:44,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-07 15:05:44,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 12182 transitions. [2021-10-07 15:05:44,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-07 15:05:44,812 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:05:44,812 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:05:44,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-07 15:05:44,812 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-10-07 15:05:44,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:05:44,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1744332324, now seen corresponding path program 1 times [2021-10-07 15:05:44,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:05:44,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151397968] [2021-10-07 15:05:44,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:05:44,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:05:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:05:44,871 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-07 15:05:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:05:44,981 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-07 15:05:44,981 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-07 15:05:44,982 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,985 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,985 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,985 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,987 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,987 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,987 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,987 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,987 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,987 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 15:05:44,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 15:05:44,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-07 15:05:44,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-07 15:05:44,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,992 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,992 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,992 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,992 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,992 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,992 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:05:44,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-07 15:05:45,002 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 15:05:45,002 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 15:05:45,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:05:45 BasicIcfg [2021-10-07 15:05:45,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 15:05:45,073 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-07 15:05:45,073 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-07 15:05:45,074 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-07 15:05:45,074 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:05:14" (3/4) ... [2021-10-07 15:05:45,077 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-07 15:05:45,183 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/popl20-more-buffer-series.wvr.c-witness.graphml [2021-10-07 15:05:45,184 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-07 15:05:45,189 INFO L168 Benchmark]: Toolchain (without parser) took 32861.21 ms. Allocated memory was 154.1 MB in the beginning and 4.2 GB in the end (delta: 4.1 GB). Free memory was 130.0 MB in the beginning and 3.6 GB in the end (delta: -3.4 GB). Peak memory consumption was 640.0 MB. Max. memory is 8.0 GB. [2021-10-07 15:05:45,190 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 154.1 MB. Free memory is still 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 15:05:45,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.87 ms. Allocated memory is still 154.1 MB. Free memory was 129.6 MB in the beginning and 118.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-07 15:05:45,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.64 ms. Allocated memory is still 154.1 MB. Free memory was 118.2 MB in the beginning and 115.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:05:45,192 INFO L168 Benchmark]: Boogie Preprocessor took 48.14 ms. Allocated memory is still 154.1 MB. Free memory was 115.5 MB in the beginning and 113.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:05:45,192 INFO L168 Benchmark]: RCFGBuilder took 1636.53 ms. Allocated memory is still 154.1 MB. Free memory was 113.5 MB in the beginning and 103.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-10-07 15:05:45,195 INFO L168 Benchmark]: TraceAbstraction took 30550.39 ms. Allocated memory was 154.1 MB in the beginning and 4.2 GB in the end (delta: 4.1 GB). Free memory was 102.6 MB in the beginning and 3.6 GB in the end (delta: -3.5 GB). Peak memory consumption was 607.5 MB. Max. memory is 8.0 GB. [2021-10-07 15:05:45,196 INFO L168 Benchmark]: Witness Printer took 110.25 ms. Allocated memory is still 4.2 GB. Free memory was 3.6 GB in the beginning and 3.6 GB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2021-10-07 15:05:45,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 154.1 MB. Free memory is still 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 434.87 ms. Allocated memory is still 154.1 MB. Free memory was 129.6 MB in the beginning and 118.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 63.64 ms. Allocated memory is still 154.1 MB. Free memory was 118.2 MB in the beginning and 115.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 48.14 ms. Allocated memory is still 154.1 MB. Free memory was 115.5 MB in the beginning and 113.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1636.53 ms. Allocated memory is still 154.1 MB. Free memory was 113.5 MB in the beginning and 103.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 30550.39 ms. Allocated memory was 154.1 MB in the beginning and 4.2 GB in the end (delta: 4.1 GB). Free memory was 102.6 MB in the beginning and 3.6 GB in the end (delta: -3.5 GB). Peak memory consumption was 607.5 MB. Max. memory is 8.0 GB. * Witness Printer took 110.25 ms. Allocated memory is still 4.2 GB. Free memory was 3.6 GB in the beginning and 3.6 GB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13778.8ms, 253 PlacesBefore, 69 PlacesAfterwards, 262 TransitionsBefore, 63 TransitionsAfterwards, 2916 CoEnabledTransitionPairs, 7 FixpointIterations, 170 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 37 TrivialYvCompositions, 8 ConcurrentYvCompositions, 15 ChoiceCompositions, 265 TotalNumberOfCompositions, 9546 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5759, positive: 5555, positive conditional: 0, positive unconditional: 5555, negative: 204, negative conditional: 0, negative unconditional: 204, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1736, positive: 1697, positive conditional: 0, positive unconditional: 1697, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1736, positive: 1676, positive conditional: 0, positive unconditional: 1676, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 60, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 216, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 182, negative conditional: 0, negative unconditional: 182, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5759, positive: 3858, positive conditional: 0, positive unconditional: 3858, negative: 165, negative conditional: 0, negative unconditional: 165, unknown: 1736, unknown conditional: 0, unknown unconditional: 1736] , Statistics on independence cache: Total cache size (in pairs): 407, Positive cache size: 389, Positive conditional cache size: 0, Positive unconditional cache size: 389, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 65]: integer overflow possible integer overflow possible We found a FailurePath: [L41] 0 int *q1, *q2, *f; [L42] 0 int q1_front, q1_back, q2_front, q2_back, i, j, n1, n2, N, total; [L101] 0 pthread_t t1, t2, t3, t4; [L103] 0 N = __VERIFIER_nondet_int() [L104] 0 n1 = __VERIFIER_nondet_int() [L105] 0 n2 = __VERIFIER_nondet_int() [L106] 0 q1_front = __VERIFIER_nondet_int() [L107] 0 q1_back = q1_front [L108] 0 q2_front = __VERIFIER_nondet_int() [L109] 0 q2_back = q2_front [L38] COND FALSE 0 !(!cond) [L38] COND FALSE 0 !(!cond) [L136] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L137] 0 int i = 0; VAL [f={0:0}, i=0, j=0, N=1, n1=0, n2=1, q1={0:0}, q1_back=0, q1_front=0, q2={0:0}, q2_back=0, q2_front=0, total=0] [L137] COND FALSE 0 !(i < size) [L140] 0 return arr; [L110] 0 q1 = create_fresh_int_array(n1) [L38] COND FALSE 0 !(!cond) [L38] COND FALSE 0 !(!cond) [L136] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L137] 0 int i = 0; VAL [f={0:0}, i=0, j=0, N=1, n1=0, n2=1, q1={-6:0}, q1_back=0, q1_front=0, q2={0:0}, q2_back=0, q2_front=0, total=0] [L137] COND TRUE 0 i < size [L138] 0 arr[i] = __VERIFIER_nondet_int() [L137] 0 i++ VAL [f={0:0}, i=0, j=0, N=1, n1=0, n2=1, q1={-6:0}, q1_back=0, q1_front=0, q2={0:0}, q2_back=0, q2_front=0, total=0] [L137] COND FALSE 0 !(i < size) [L140] 0 return arr; [L111] 0 q2 = create_fresh_int_array(n2) [L38] COND FALSE 0 !(!cond) [L38] COND FALSE 0 !(!cond) [L136] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L137] 0 int i = 0; VAL [f={0:0}, i=0, j=0, N=1, n1=0, n2=1, q1={-6:0}, q1_back=0, q1_front=0, q2={-3:0}, q2_back=0, q2_front=0, total=0] [L137] COND TRUE 0 i < size [L138] 0 arr[i] = __VERIFIER_nondet_int() [L137] 0 i++ VAL [f={0:0}, i=0, j=0, N=1, n1=0, n2=1, q1={-6:0}, q1_back=0, q1_front=0, q2={-3:0}, q2_back=0, q2_front=0, total=0] [L137] COND FALSE 0 !(i < size) [L140] 0 return arr; [L112] 0 f = create_fresh_int_array(N) [L38] COND FALSE 0 !(!cond) [L117] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [f={-5:0}, i=0, j=0, N=1, n1=0, n2=1, q1={-6:0}, q1_back=0, q1_front=0, q2={-3:0}, q2_back=0, q2_front=0, total=0] [L118] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [f={-5:0}, i=0, j=0, N=1, n1=0, n2=1, q1={-6:0}, q1_back=0, q1_front=0, q2={-3:0}, q2_back=0, q2_front=0, total=0] [L62] COND TRUE 2 j < N [L38] COND FALSE 2 !(!cond) [L65] 2 q2[q2_back] [L65] EXPR 2 f[j] [L65] 2 -f[j] VAL [f={-5:0}, i=0, j=0, N=1, n1=0, n2=1, q1={-6:0}, q1_back=0, q1_front=0, q2={-3:0}, q2_back=0, q2_front=0, total=0] - UnprovableResult [Line: 51]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 80]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 80]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 120]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 117]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 118]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 93]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 93]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 285 locations, 46 error locations. Started 1 CEGAR loops. OverallTime: 30286.4ms, OverallIterations: 15, TraceHistogramMax: 4, EmptinessCheckTime: 75.5ms, AutomataDifference: 5137.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14320.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 578 SDtfs, 1307 SDslu, 839 SDs, 0 SdLazy, 354 SolverSat, 142 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 636.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 356.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8193occurred in iteration=0, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5840.5ms AutomataMinimizationTime, 14 MinimizatonAttempts, 53073 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 206.3ms SsaConstructionTime, 706.7ms SatisfiabilityAnalysisTime, 1083.4ms InterpolantComputationTime, 143 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 372 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1273 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 23 InterpolantComputations, 11 PerfectInterpolantSequences, 25/67 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-07 15:05:45,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...