/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:12:34,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:12:34,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:12:34,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:12:34,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:12:34,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:12:34,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:12:34,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:12:34,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:12:34,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:12:34,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:12:34,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:12:34,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:12:34,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:12:34,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:12:34,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:12:34,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:12:34,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:12:34,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:12:34,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:12:34,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:12:34,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:12:34,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:12:34,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:12:34,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:12:34,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:12:34,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:12:34,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:12:34,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:12:34,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:12:34,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:12:34,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:12:34,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:12:34,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:12:34,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:12:34,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:12:34,547 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 11:12:34,596 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:12:34,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:12:34,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 11:12:34,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 11:12:34,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:12:34,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:12:34,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:12:34,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:12:34,598 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:12:34,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:12:34,599 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:12:34,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:12:34,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:12:34,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:12:34,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:12:34,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:12:34,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:12:34,599 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:12:34,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:12:34,600 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:12:34,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:12:34,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:12:34,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:12:34,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:12:34,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:12:34,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:12:34,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:12:34,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:12:34,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:12:34,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:12:34,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:12:34,602 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:12:34,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 11:12:34,602 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:12:34,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:12:34,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:12:34,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:12:34,952 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:12:34,953 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:12:34,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2022-09-16 11:12:34,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4339457d/919877e734b647c2919073953a19255e/FLAG0a6f7b99e [2022-09-16 11:12:35,348 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:12:35,348 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2022-09-16 11:12:35,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4339457d/919877e734b647c2919073953a19255e/FLAG0a6f7b99e [2022-09-16 11:12:35,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4339457d/919877e734b647c2919073953a19255e [2022-09-16 11:12:35,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:12:35,766 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:12:35,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:12:35,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:12:35,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:12:35,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:12:35" (1/1) ... [2022-09-16 11:12:35,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c7955f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:12:35, skipping insertion in model container [2022-09-16 11:12:35,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:12:35" (1/1) ... [2022-09-16 11:12:35,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:12:35,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:12:35,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c[2690,2703] [2022-09-16 11:12:35,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:12:35,914 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:12:35,933 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c[2690,2703] [2022-09-16 11:12:35,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:12:35,944 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:12:35,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:12:35 WrapperNode [2022-09-16 11:12:35,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:12:35,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:12:35,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:12:35,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:12:35,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:12:35" (1/1) ... [2022-09-16 11:12:35,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:12:35" (1/1) ... [2022-09-16 11:12:35,982 INFO L138 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 125 [2022-09-16 11:12:35,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:12:35,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:12:35,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:12:35,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:12:35,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:12:35" (1/1) ... [2022-09-16 11:12:35,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:12:35" (1/1) ... [2022-09-16 11:12:35,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:12:35" (1/1) ... [2022-09-16 11:12:35,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:12:35" (1/1) ... [2022-09-16 11:12:35,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:12:35" (1/1) ... [2022-09-16 11:12:36,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:12:35" (1/1) ... [2022-09-16 11:12:36,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:12:35" (1/1) ... [2022-09-16 11:12:36,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:12:36,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:12:36,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:12:36,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:12:36,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:12:35" (1/1) ... [2022-09-16 11:12:36,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:12:36,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:12:36,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 11:12:36,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 11:12:36,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:12:36,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:12:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:12:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:12:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 11:12:36,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 11:12:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 11:12:36,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 11:12:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 11:12:36,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 11:12:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:12:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:12:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:12:36,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 11:12:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:12:36,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:12:36,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:12:36,105 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:12:36,192 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:12:36,193 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:12:36,436 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:12:36,476 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:12:36,477 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-09-16 11:12:36,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:12:36 BoogieIcfgContainer [2022-09-16 11:12:36,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:12:36,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:12:36,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:12:36,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:12:36,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:12:35" (1/3) ... [2022-09-16 11:12:36,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1efb1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:12:36, skipping insertion in model container [2022-09-16 11:12:36,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:12:35" (2/3) ... [2022-09-16 11:12:36,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1efb1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:12:36, skipping insertion in model container [2022-09-16 11:12:36,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:12:36" (3/3) ... [2022-09-16 11:12:36,485 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-simple-array-sum.wvr.c [2022-09-16 11:12:36,497 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 11:12:36,503 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:12:36,504 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-09-16 11:12:36,504 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:12:36,575 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-16 11:12:36,599 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 199 places, 205 transitions, 434 flow [2022-09-16 11:12:37,046 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 14585 states, 14555 states have (on average 3.875231879079354) internal successors, (56404), 14584 states have internal predecessors, (56404), 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) [2022-09-16 11:12:37,073 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:12:37,079 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@517b774e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:12:37,079 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-09-16 11:12:37,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 14585 states, 14555 states have (on average 3.875231879079354) internal successors, (56404), 14584 states have internal predecessors, (56404), 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) [2022-09-16 11:12:37,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-09-16 11:12:37,131 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:12:37,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:12:37,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:12:37,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:12:37,138 INFO L85 PathProgramCache]: Analyzing trace with hash 202372782, now seen corresponding path program 1 times [2022-09-16 11:12:37,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:12:37,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36007218] [2022-09-16 11:12:37,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:12:37,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:12:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:12:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:12:37,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:12:37,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36007218] [2022-09-16 11:12:37,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36007218] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:12:37,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:12:37,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:12:37,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273409910] [2022-09-16 11:12:37,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:12:37,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:12:37,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:12:37,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:12:37,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:12:37,414 INFO L87 Difference]: Start difference. First operand has 14585 states, 14555 states have (on average 3.875231879079354) internal successors, (56404), 14584 states have internal predecessors, (56404), 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 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 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) [2022-09-16 11:12:37,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:12:37,990 INFO L93 Difference]: Finished difference Result 29100 states and 107284 transitions. [2022-09-16 11:12:37,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:12:37,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2022-09-16 11:12:37,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:12:38,300 INFO L225 Difference]: With dead ends: 29100 [2022-09-16 11:12:38,300 INFO L226 Difference]: Without dead ends: 29096 [2022-09-16 11:12:38,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:12:38,306 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 98 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:12:38,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 445 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:12:38,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29096 states. [2022-09-16 11:12:39,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29096 to 14593. [2022-09-16 11:12:39,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14593 states, 14563 states have (on average 3.686534367918698) internal successors, (53687), 14592 states have internal predecessors, (53687), 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) [2022-09-16 11:12:39,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14593 states to 14593 states and 53687 transitions. [2022-09-16 11:12:39,194 INFO L78 Accepts]: Start accepts. Automaton has 14593 states and 53687 transitions. Word has length 50 [2022-09-16 11:12:39,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:12:39,195 INFO L495 AbstractCegarLoop]: Abstraction has 14593 states and 53687 transitions. [2022-09-16 11:12:39,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 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) [2022-09-16 11:12:39,195 INFO L276 IsEmpty]: Start isEmpty. Operand 14593 states and 53687 transitions. [2022-09-16 11:12:39,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-09-16 11:12:39,197 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:12:39,198 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:12:39,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:12:39,199 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:12:39,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:12:39,199 INFO L85 PathProgramCache]: Analyzing trace with hash -623107824, now seen corresponding path program 1 times [2022-09-16 11:12:39,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:12:39,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244396338] [2022-09-16 11:12:39,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:12:39,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:12:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:12:39,301 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:12:39,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:12:39,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244396338] [2022-09-16 11:12:39,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244396338] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:12:39,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294789160] [2022-09-16 11:12:39,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:12:39,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:12:39,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:12:39,320 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:12:39,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 11:12:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:12:39,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:12:39,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:12:39,517 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:12:39,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:12:39,562 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:12:39,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294789160] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:12:39,562 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:12:39,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 11:12:39,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531938186] [2022-09-16 11:12:39,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:12:39,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 11:12:39,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:12:39,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 11:12:39,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 11:12:39,565 INFO L87 Difference]: Start difference. First operand 14593 states and 53687 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 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) [2022-09-16 11:12:40,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:12:40,488 INFO L93 Difference]: Finished difference Result 72645 states and 268105 transitions. [2022-09-16 11:12:40,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:12:40,488 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 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 58 [2022-09-16 11:12:40,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:12:41,427 INFO L225 Difference]: With dead ends: 72645 [2022-09-16 11:12:41,427 INFO L226 Difference]: Without dead ends: 72645 [2022-09-16 11:12:41,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2022-09-16 11:12:41,428 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 606 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:12:41,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 947 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:12:41,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72645 states. [2022-09-16 11:12:42,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72645 to 14639. [2022-09-16 11:12:42,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14639 states, 14609 states have (on average 3.6787596686973782) internal successors, (53743), 14638 states have internal predecessors, (53743), 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) [2022-09-16 11:12:42,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14639 states to 14639 states and 53743 transitions. [2022-09-16 11:12:42,858 INFO L78 Accepts]: Start accepts. Automaton has 14639 states and 53743 transitions. Word has length 58 [2022-09-16 11:12:42,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:12:42,858 INFO L495 AbstractCegarLoop]: Abstraction has 14639 states and 53743 transitions. [2022-09-16 11:12:42,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 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) [2022-09-16 11:12:42,859 INFO L276 IsEmpty]: Start isEmpty. Operand 14639 states and 53743 transitions. [2022-09-16 11:12:42,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-09-16 11:12:42,861 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:12:42,861 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:12:42,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 11:12:43,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:12:43,076 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:12:43,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:12:43,076 INFO L85 PathProgramCache]: Analyzing trace with hash -2136473005, now seen corresponding path program 1 times [2022-09-16 11:12:43,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:12:43,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588936401] [2022-09-16 11:12:43,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:12:43,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:12:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:12:43,133 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:12:43,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:12:43,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588936401] [2022-09-16 11:12:43,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588936401] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:12:43,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398371642] [2022-09-16 11:12:43,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:12:43,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:12:43,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:12:43,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:12:43,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 11:12:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:12:43,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:12:43,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:12:43,225 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:12:43,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:12:43,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398371642] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:12:43,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:12:43,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 11:12:43,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614778487] [2022-09-16 11:12:43,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:12:43,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:12:43,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:12:43,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:12:43,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:12:43,227 INFO L87 Difference]: Start difference. First operand 14639 states and 53743 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 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) [2022-09-16 11:12:43,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:12:43,608 INFO L93 Difference]: Finished difference Result 29136 states and 107326 transitions. [2022-09-16 11:12:43,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:12:43,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 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 59 [2022-09-16 11:12:43,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:12:43,749 INFO L225 Difference]: With dead ends: 29136 [2022-09-16 11:12:43,749 INFO L226 Difference]: Without dead ends: 29136 [2022-09-16 11:12:43,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:12:43,751 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 204 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:12:43,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 578 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:12:43,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29136 states. [2022-09-16 11:12:44,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29136 to 14637. [2022-09-16 11:12:44,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14637 states, 14609 states have (on average 3.6783489629680335) internal successors, (53737), 14636 states have internal predecessors, (53737), 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) [2022-09-16 11:12:44,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14637 states to 14637 states and 53737 transitions. [2022-09-16 11:12:44,366 INFO L78 Accepts]: Start accepts. Automaton has 14637 states and 53737 transitions. Word has length 59 [2022-09-16 11:12:44,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:12:44,366 INFO L495 AbstractCegarLoop]: Abstraction has 14637 states and 53737 transitions. [2022-09-16 11:12:44,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 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) [2022-09-16 11:12:44,366 INFO L276 IsEmpty]: Start isEmpty. Operand 14637 states and 53737 transitions. [2022-09-16 11:12:44,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-09-16 11:12:44,367 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:12:44,367 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:12:44,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 11:12:44,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-09-16 11:12:44,603 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:12:44,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:12:44,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1111200822, now seen corresponding path program 2 times [2022-09-16 11:12:44,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:12:44,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610328559] [2022-09-16 11:12:44,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:12:44,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:12:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:12:44,727 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:12:44,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:12:44,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610328559] [2022-09-16 11:12:44,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610328559] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:12:44,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668996796] [2022-09-16 11:12:44,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 11:12:44,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:12:44,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:12:44,731 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:12:44,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 11:12:44,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 11:12:44,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:12:44,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 11:12:44,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:12:44,911 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-09-16 11:12:44,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:12:45,157 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-09-16 11:12:45,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668996796] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:12:45,158 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:12:45,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-09-16 11:12:45,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710310823] [2022-09-16 11:12:45,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:12:45,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:12:45,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:12:45,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:12:45,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:12:45,159 INFO L87 Difference]: Start difference. First operand 14637 states and 53737 transitions. Second operand has 18 states, 17 states have (on average 7.0) internal successors, (119), 18 states have internal predecessors, (119), 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) [2022-09-16 11:12:46,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:12:46,591 INFO L93 Difference]: Finished difference Result 101653 states and 375297 transitions. [2022-09-16 11:12:46,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 11:12:46,592 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.0) internal successors, (119), 18 states have internal predecessors, (119), 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 82 [2022-09-16 11:12:46,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:12:47,159 INFO L225 Difference]: With dead ends: 101653 [2022-09-16 11:12:47,159 INFO L226 Difference]: Without dead ends: 101653 [2022-09-16 11:12:47,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 154 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=419, Invalid=1063, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 11:12:47,160 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 2890 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2890 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 11:12:47,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2890 Valid, 1187 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 11:12:47,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101653 states. [2022-09-16 11:12:48,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101653 to 14577. [2022-09-16 11:12:48,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14577 states, 14551 states have (on average 3.6883375713009414) internal successors, (53669), 14576 states have internal predecessors, (53669), 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) [2022-09-16 11:12:48,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14577 states to 14577 states and 53669 transitions. [2022-09-16 11:12:48,731 INFO L78 Accepts]: Start accepts. Automaton has 14577 states and 53669 transitions. Word has length 82 [2022-09-16 11:12:48,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:12:48,748 INFO L495 AbstractCegarLoop]: Abstraction has 14577 states and 53669 transitions. [2022-09-16 11:12:48,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.0) internal successors, (119), 18 states have internal predecessors, (119), 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) [2022-09-16 11:12:48,748 INFO L276 IsEmpty]: Start isEmpty. Operand 14577 states and 53669 transitions. [2022-09-16 11:12:48,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-09-16 11:12:48,749 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:12:48,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:12:48,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 11:12:48,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:12:48,950 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:12:48,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:12:48,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1489071132, now seen corresponding path program 1 times [2022-09-16 11:12:48,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:12:48,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83966785] [2022-09-16 11:12:48,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:12:48,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:12:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:12:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:12:49,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:12:49,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83966785] [2022-09-16 11:12:49,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83966785] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:12:49,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:12:49,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:12:49,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39537559] [2022-09-16 11:12:49,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:12:49,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:12:49,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:12:49,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:12:49,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:12:49,072 INFO L87 Difference]: Start difference. First operand 14577 states and 53669 transitions. Second operand has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 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) [2022-09-16 11:12:49,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:12:49,273 INFO L93 Difference]: Finished difference Result 26268 states and 96830 transitions. [2022-09-16 11:12:49,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:12:49,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 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 89 [2022-09-16 11:12:49,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:12:49,387 INFO L225 Difference]: With dead ends: 26268 [2022-09-16 11:12:49,387 INFO L226 Difference]: Without dead ends: 26268 [2022-09-16 11:12:49,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:12:49,388 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 149 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:12:49,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 612 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:12:49,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26268 states. [2022-09-16 11:12:50,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26268 to 21087. [2022-09-16 11:12:50,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21087 states, 21061 states have (on average 3.7440292483737716) internal successors, (78853), 21086 states have internal predecessors, (78853), 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) [2022-09-16 11:12:50,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21087 states to 21087 states and 78853 transitions. [2022-09-16 11:12:50,196 INFO L78 Accepts]: Start accepts. Automaton has 21087 states and 78853 transitions. Word has length 89 [2022-09-16 11:12:50,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:12:50,196 INFO L495 AbstractCegarLoop]: Abstraction has 21087 states and 78853 transitions. [2022-09-16 11:12:50,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 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) [2022-09-16 11:12:50,196 INFO L276 IsEmpty]: Start isEmpty. Operand 21087 states and 78853 transitions. [2022-09-16 11:12:50,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-09-16 11:12:50,198 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:12:50,198 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:12:50,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:12:50,198 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:12:50,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:12:50,199 INFO L85 PathProgramCache]: Analyzing trace with hash -306758919, now seen corresponding path program 1 times [2022-09-16 11:12:50,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:12:50,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223850082] [2022-09-16 11:12:50,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:12:50,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:12:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:12:50,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:12:50,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:12:50,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223850082] [2022-09-16 11:12:50,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223850082] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:12:50,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:12:50,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:12:50,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237988102] [2022-09-16 11:12:50,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:12:50,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:12:50,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:12:50,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:12:50,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:12:50,417 INFO L87 Difference]: Start difference. First operand 21087 states and 78853 transitions. Second operand has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 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) [2022-09-16 11:12:50,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:12:50,749 INFO L93 Difference]: Finished difference Result 37455 states and 140424 transitions. [2022-09-16 11:12:50,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:12:50,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 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 94 [2022-09-16 11:12:50,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:12:50,882 INFO L225 Difference]: With dead ends: 37455 [2022-09-16 11:12:50,882 INFO L226 Difference]: Without dead ends: 37455 [2022-09-16 11:12:50,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:12:50,884 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 140 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:12:50,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 608 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:12:50,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37455 states. [2022-09-16 11:12:51,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37455 to 30069. [2022-09-16 11:12:51,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30069 states, 30043 states have (on average 3.7989881170322537) internal successors, (114133), 30068 states have internal predecessors, (114133), 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) [2022-09-16 11:12:51,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30069 states to 30069 states and 114133 transitions. [2022-09-16 11:12:51,971 INFO L78 Accepts]: Start accepts. Automaton has 30069 states and 114133 transitions. Word has length 94 [2022-09-16 11:12:51,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:12:51,972 INFO L495 AbstractCegarLoop]: Abstraction has 30069 states and 114133 transitions. [2022-09-16 11:12:51,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 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) [2022-09-16 11:12:51,973 INFO L276 IsEmpty]: Start isEmpty. Operand 30069 states and 114133 transitions. [2022-09-16 11:12:51,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-09-16 11:12:51,975 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:12:51,975 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:12:51,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 11:12:51,975 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:12:51,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:12:51,976 INFO L85 PathProgramCache]: Analyzing trace with hash 800919834, now seen corresponding path program 1 times [2022-09-16 11:12:51,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:12:51,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642380079] [2022-09-16 11:12:51,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:12:51,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:12:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:12:52,019 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:12:52,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:12:52,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642380079] [2022-09-16 11:12:52,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642380079] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:12:52,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487361505] [2022-09-16 11:12:52,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:12:52,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:12:52,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:12:52,021 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:12:52,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 11:12:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:12:52,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 11:12:52,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:12:52,198 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-09-16 11:12:52,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:12:52,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487361505] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:12:52,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:12:52,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-09-16 11:12:52,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639882533] [2022-09-16 11:12:52,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:12:52,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 11:12:52,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:12:52,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 11:12:52,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:12:52,203 INFO L87 Difference]: Start difference. First operand 30069 states and 114133 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 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) [2022-09-16 11:12:52,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:12:52,826 INFO L93 Difference]: Finished difference Result 45004 states and 166436 transitions. [2022-09-16 11:12:52,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 11:12:52,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 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 98 [2022-09-16 11:12:52,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:12:53,084 INFO L225 Difference]: With dead ends: 45004 [2022-09-16 11:12:53,084 INFO L226 Difference]: Without dead ends: 44860 [2022-09-16 11:12:53,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:12:53,085 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 955 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:12:53,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 558 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:12:53,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44860 states. [2022-09-16 11:12:54,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44860 to 32694. [2022-09-16 11:12:54,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32694 states, 32668 states have (on average 3.793406391575854) internal successors, (123923), 32693 states have internal predecessors, (123923), 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) [2022-09-16 11:12:54,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32694 states to 32694 states and 123923 transitions. [2022-09-16 11:12:54,376 INFO L78 Accepts]: Start accepts. Automaton has 32694 states and 123923 transitions. Word has length 98 [2022-09-16 11:12:54,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:12:54,377 INFO L495 AbstractCegarLoop]: Abstraction has 32694 states and 123923 transitions. [2022-09-16 11:12:54,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 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) [2022-09-16 11:12:54,377 INFO L276 IsEmpty]: Start isEmpty. Operand 32694 states and 123923 transitions. [2022-09-16 11:12:54,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-09-16 11:12:54,380 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:12:54,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:12:54,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-09-16 11:12:54,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:12:54,590 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:12:54,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:12:54,590 INFO L85 PathProgramCache]: Analyzing trace with hash -47790388, now seen corresponding path program 1 times [2022-09-16 11:12:54,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:12:54,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77807055] [2022-09-16 11:12:54,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:12:54,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:12:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:12:54,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:12:54,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:12:54,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77807055] [2022-09-16 11:12:54,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77807055] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:12:54,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:12:54,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:12:54,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380522428] [2022-09-16 11:12:54,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:12:54,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:12:54,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:12:54,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:12:54,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:12:54,699 INFO L87 Difference]: Start difference. First operand 32694 states and 123923 transitions. Second operand has 4 states, 3 states have (on average 33.666666666666664) internal successors, (101), 4 states have internal predecessors, (101), 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) [2022-09-16 11:12:55,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:12:55,355 INFO L93 Difference]: Finished difference Result 56274 states and 215807 transitions. [2022-09-16 11:12:55,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:12:55,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 33.666666666666664) internal successors, (101), 4 states have internal predecessors, (101), 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 101 [2022-09-16 11:12:55,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:12:55,724 INFO L225 Difference]: With dead ends: 56274 [2022-09-16 11:12:55,724 INFO L226 Difference]: Without dead ends: 56274 [2022-09-16 11:12:55,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:12:55,725 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 123 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:12:55,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 588 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:12:55,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56274 states. [2022-09-16 11:12:57,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56274 to 46575. [2022-09-16 11:12:57,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46575 states, 46549 states have (on average 3.883477625727728) internal successors, (180772), 46574 states have internal predecessors, (180772), 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) [2022-09-16 11:12:57,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46575 states to 46575 states and 180772 transitions. [2022-09-16 11:12:57,362 INFO L78 Accepts]: Start accepts. Automaton has 46575 states and 180772 transitions. Word has length 101 [2022-09-16 11:12:57,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:12:57,362 INFO L495 AbstractCegarLoop]: Abstraction has 46575 states and 180772 transitions. [2022-09-16 11:12:57,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 33.666666666666664) internal successors, (101), 4 states have internal predecessors, (101), 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) [2022-09-16 11:12:57,362 INFO L276 IsEmpty]: Start isEmpty. Operand 46575 states and 180772 transitions. [2022-09-16 11:12:57,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-09-16 11:12:57,366 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:12:57,366 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:12:57,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 11:12:57,366 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:12:57,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:12:57,367 INFO L85 PathProgramCache]: Analyzing trace with hash 2125154451, now seen corresponding path program 1 times [2022-09-16 11:12:57,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:12:57,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33196887] [2022-09-16 11:12:57,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:12:57,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:12:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:12:57,728 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-09-16 11:12:57,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:12:57,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33196887] [2022-09-16 11:12:57,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33196887] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:12:57,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:12:57,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 11:12:57,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170236405] [2022-09-16 11:12:57,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:12:57,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 11:12:57,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:12:57,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 11:12:57,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-09-16 11:12:57,729 INFO L87 Difference]: Start difference. First operand 46575 states and 180772 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 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) [2022-09-16 11:12:58,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:12:58,348 INFO L93 Difference]: Finished difference Result 48023 states and 183335 transitions. [2022-09-16 11:12:58,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 11:12:58,348 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 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 102 [2022-09-16 11:12:58,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:12:58,575 INFO L225 Difference]: With dead ends: 48023 [2022-09-16 11:12:58,575 INFO L226 Difference]: Without dead ends: 47747 [2022-09-16 11:12:58,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-09-16 11:12:58,576 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 745 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:12:58,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 608 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:12:58,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47747 states. [2022-09-16 11:12:59,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47747 to 44331. [2022-09-16 11:12:59,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44331 states, 44305 states have (on average 3.8716623405936126) internal successors, (171534), 44330 states have internal predecessors, (171534), 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) [2022-09-16 11:13:00,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44331 states to 44331 states and 171534 transitions. [2022-09-16 11:13:00,186 INFO L78 Accepts]: Start accepts. Automaton has 44331 states and 171534 transitions. Word has length 102 [2022-09-16 11:13:00,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:00,186 INFO L495 AbstractCegarLoop]: Abstraction has 44331 states and 171534 transitions. [2022-09-16 11:13:00,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 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) [2022-09-16 11:13:00,187 INFO L276 IsEmpty]: Start isEmpty. Operand 44331 states and 171534 transitions. [2022-09-16 11:13:00,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-09-16 11:13:00,433 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:00,433 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:13:00,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 11:13:00,433 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:13:00,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:00,434 INFO L85 PathProgramCache]: Analyzing trace with hash -916502517, now seen corresponding path program 1 times [2022-09-16 11:13:00,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:00,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771948038] [2022-09-16 11:13:00,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:00,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:00,547 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:13:00,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:00,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771948038] [2022-09-16 11:13:00,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771948038] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:13:00,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422776690] [2022-09-16 11:13:00,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:00,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:00,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:13:00,564 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:13:00,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 11:13:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:00,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 11:13:00,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:13:00,766 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-09-16 11:13:00,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:13:00,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422776690] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:13:00,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:13:00,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-09-16 11:13:00,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674033294] [2022-09-16 11:13:00,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:13:00,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 11:13:00,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:00,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 11:13:00,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:13:00,768 INFO L87 Difference]: Start difference. First operand 44331 states and 171534 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 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) [2022-09-16 11:13:01,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:01,187 INFO L93 Difference]: Finished difference Result 43735 states and 168691 transitions. [2022-09-16 11:13:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 11:13:01,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 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 110 [2022-09-16 11:13:01,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:01,341 INFO L225 Difference]: With dead ends: 43735 [2022-09-16 11:13:01,341 INFO L226 Difference]: Without dead ends: 42844 [2022-09-16 11:13:01,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:13:01,343 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 682 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:01,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 496 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:13:01,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42844 states. [2022-09-16 11:13:02,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42844 to 42832. [2022-09-16 11:13:02,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42832 states, 42806 states have (on average 3.8880530766714947) internal successors, (166432), 42831 states have internal predecessors, (166432), 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) [2022-09-16 11:13:02,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42832 states to 42832 states and 166432 transitions. [2022-09-16 11:13:02,941 INFO L78 Accepts]: Start accepts. Automaton has 42832 states and 166432 transitions. Word has length 110 [2022-09-16 11:13:02,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:02,942 INFO L495 AbstractCegarLoop]: Abstraction has 42832 states and 166432 transitions. [2022-09-16 11:13:02,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 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) [2022-09-16 11:13:02,942 INFO L276 IsEmpty]: Start isEmpty. Operand 42832 states and 166432 transitions. [2022-09-16 11:13:02,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-09-16 11:13:02,944 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:02,944 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:13:02,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-09-16 11:13:03,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-09-16 11:13:03,163 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:13:03,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:03,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1952035865, now seen corresponding path program 1 times [2022-09-16 11:13:03,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:03,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855590482] [2022-09-16 11:13:03,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:03,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:03,211 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:13:03,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:03,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855590482] [2022-09-16 11:13:03,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855590482] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:13:03,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699435707] [2022-09-16 11:13:03,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:03,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:03,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:13:03,213 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:13:03,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 11:13:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:03,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 11:13:03,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:13:03,745 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:13:03,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:13:03,993 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:13:03,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699435707] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:13:03,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:13:03,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 23 [2022-09-16 11:13:03,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979205392] [2022-09-16 11:13:03,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:13:03,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-09-16 11:13:03,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:03,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-09-16 11:13:03,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2022-09-16 11:13:03,995 INFO L87 Difference]: Start difference. First operand 42832 states and 166432 transitions. Second operand has 23 states, 23 states have (on average 10.565217391304348) internal successors, (243), 23 states have internal predecessors, (243), 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) [2022-09-16 11:13:06,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:06,423 INFO L93 Difference]: Finished difference Result 141551 states and 539503 transitions. [2022-09-16 11:13:06,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 11:13:06,444 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.565217391304348) internal successors, (243), 23 states have internal predecessors, (243), 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 114 [2022-09-16 11:13:06,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:07,599 INFO L225 Difference]: With dead ends: 141551 [2022-09-16 11:13:07,599 INFO L226 Difference]: Without dead ends: 140759 [2022-09-16 11:13:07,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=622, Invalid=2134, Unknown=0, NotChecked=0, Total=2756 [2022-09-16 11:13:07,600 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 3458 mSDsluCounter, 3733 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3458 SdHoareTripleChecker+Valid, 3710 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:07,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3458 Valid, 3710 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 11:13:07,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140759 states. [2022-09-16 11:13:10,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140759 to 78330. [2022-09-16 11:13:10,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78330 states, 78304 states have (on average 3.9239374744585205) internal successors, (307260), 78329 states have internal predecessors, (307260), 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) [2022-09-16 11:13:11,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78330 states to 78330 states and 307260 transitions. [2022-09-16 11:13:11,213 INFO L78 Accepts]: Start accepts. Automaton has 78330 states and 307260 transitions. Word has length 114 [2022-09-16 11:13:11,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:11,213 INFO L495 AbstractCegarLoop]: Abstraction has 78330 states and 307260 transitions. [2022-09-16 11:13:11,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.565217391304348) internal successors, (243), 23 states have internal predecessors, (243), 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) [2022-09-16 11:13:11,213 INFO L276 IsEmpty]: Start isEmpty. Operand 78330 states and 307260 transitions. [2022-09-16 11:13:11,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-09-16 11:13:11,220 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:11,221 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:13:11,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-16 11:13:11,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:11,437 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:13:11,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:11,438 INFO L85 PathProgramCache]: Analyzing trace with hash -89107232, now seen corresponding path program 1 times [2022-09-16 11:13:11,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:11,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236965921] [2022-09-16 11:13:11,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:11,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:11,532 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:13:11,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:11,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236965921] [2022-09-16 11:13:11,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236965921] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:13:11,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522511057] [2022-09-16 11:13:11,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:11,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:11,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:13:11,533 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:13:11,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 11:13:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:11,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 11:13:11,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:13:11,769 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:13:11,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:13:12,452 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:13:12,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522511057] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:13:12,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:13:12,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-09-16 11:13:12,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556254531] [2022-09-16 11:13:12,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:13:12,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-09-16 11:13:12,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:12,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-09-16 11:13:12,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2022-09-16 11:13:12,454 INFO L87 Difference]: Start difference. First operand 78330 states and 307260 transitions. Second operand has 24 states, 24 states have (on average 7.291666666666667) internal successors, (175), 24 states have internal predecessors, (175), 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) [2022-09-16 11:13:14,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:14,004 INFO L93 Difference]: Finished difference Result 100511 states and 384193 transitions. [2022-09-16 11:13:14,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 11:13:14,005 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.291666666666667) internal successors, (175), 24 states have internal predecessors, (175), 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 118 [2022-09-16 11:13:14,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:14,542 INFO L225 Difference]: With dead ends: 100511 [2022-09-16 11:13:14,542 INFO L226 Difference]: Without dead ends: 96971 [2022-09-16 11:13:14,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 221 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=562, Invalid=1694, Unknown=0, NotChecked=0, Total=2256 [2022-09-16 11:13:14,543 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 2144 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2144 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:14,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2144 Valid, 2845 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 11:13:14,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96971 states. [2022-09-16 11:13:16,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96971 to 72820. [2022-09-16 11:13:16,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72820 states, 72794 states have (on average 3.888823254663846) internal successors, (283083), 72819 states have internal predecessors, (283083), 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) [2022-09-16 11:13:17,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72820 states to 72820 states and 283083 transitions. [2022-09-16 11:13:17,610 INFO L78 Accepts]: Start accepts. Automaton has 72820 states and 283083 transitions. Word has length 118 [2022-09-16 11:13:17,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:17,611 INFO L495 AbstractCegarLoop]: Abstraction has 72820 states and 283083 transitions. [2022-09-16 11:13:17,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.291666666666667) internal successors, (175), 24 states have internal predecessors, (175), 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) [2022-09-16 11:13:17,611 INFO L276 IsEmpty]: Start isEmpty. Operand 72820 states and 283083 transitions. [2022-09-16 11:13:17,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-09-16 11:13:17,654 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:17,655 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:13:17,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-09-16 11:13:17,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:17,874 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:13:17,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:17,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1043183448, now seen corresponding path program 1 times [2022-09-16 11:13:17,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:17,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013620276] [2022-09-16 11:13:17,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:17,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:17,964 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:13:17,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:17,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013620276] [2022-09-16 11:13:17,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013620276] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:13:17,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474464561] [2022-09-16 11:13:17,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:17,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:17,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:13:17,967 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:13:17,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-16 11:13:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:18,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 11:13:18,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:13:18,256 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:13:18,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:13:18,493 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:13:18,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474464561] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:13:18,493 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:13:18,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 23 [2022-09-16 11:13:18,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678504100] [2022-09-16 11:13:18,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:13:18,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-09-16 11:13:18,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:18,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-09-16 11:13:18,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2022-09-16 11:13:18,495 INFO L87 Difference]: Start difference. First operand 72820 states and 283083 transitions. Second operand has 23 states, 23 states have (on average 11.608695652173912) internal successors, (267), 23 states have internal predecessors, (267), 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) [2022-09-16 11:13:20,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:20,441 INFO L93 Difference]: Finished difference Result 121353 states and 465731 transitions. [2022-09-16 11:13:20,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-09-16 11:13:20,442 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 11.608695652173912) internal successors, (267), 23 states have internal predecessors, (267), 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 126 [2022-09-16 11:13:20,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:21,668 INFO L225 Difference]: With dead ends: 121353 [2022-09-16 11:13:21,668 INFO L226 Difference]: Without dead ends: 101994 [2022-09-16 11:13:21,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 236 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=593, Invalid=2059, Unknown=0, NotChecked=0, Total=2652 [2022-09-16 11:13:21,671 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 3386 mSDsluCounter, 2659 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3386 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:21,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3386 Valid, 2721 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 11:13:21,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101994 states. [2022-09-16 11:13:24,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101994 to 77640. [2022-09-16 11:13:24,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77640 states, 77614 states have (on average 3.960316437756075) internal successors, (307376), 77639 states have internal predecessors, (307376), 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) [2022-09-16 11:13:24,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77640 states to 77640 states and 307376 transitions. [2022-09-16 11:13:24,967 INFO L78 Accepts]: Start accepts. Automaton has 77640 states and 307376 transitions. Word has length 126 [2022-09-16 11:13:24,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:24,968 INFO L495 AbstractCegarLoop]: Abstraction has 77640 states and 307376 transitions. [2022-09-16 11:13:24,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.608695652173912) internal successors, (267), 23 states have internal predecessors, (267), 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) [2022-09-16 11:13:24,968 INFO L276 IsEmpty]: Start isEmpty. Operand 77640 states and 307376 transitions. [2022-09-16 11:13:24,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-09-16 11:13:24,970 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:24,971 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:13:24,988 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-09-16 11:13:25,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-09-16 11:13:25,184 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:13:25,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:25,187 INFO L85 PathProgramCache]: Analyzing trace with hash 224088796, now seen corresponding path program 1 times [2022-09-16 11:13:25,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:25,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903776999] [2022-09-16 11:13:25,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:25,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:25,234 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-09-16 11:13:25,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:25,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903776999] [2022-09-16 11:13:25,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903776999] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:13:25,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715312385] [2022-09-16 11:13:25,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:25,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:25,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:13:25,236 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:13:25,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-09-16 11:13:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:25,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:13:25,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:13:25,342 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-09-16 11:13:25,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:13:25,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715312385] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:13:25,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:13:25,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 11:13:25,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214366377] [2022-09-16 11:13:25,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:13:25,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:13:25,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:25,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:13:25,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:13:25,343 INFO L87 Difference]: Start difference. First operand 77640 states and 307376 transitions. Second operand has 6 states, 5 states have (on average 23.0) internal successors, (115), 6 states have internal predecessors, (115), 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) [2022-09-16 11:13:26,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:26,403 INFO L93 Difference]: Finished difference Result 84438 states and 330022 transitions. [2022-09-16 11:13:26,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:13:26,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.0) internal successors, (115), 6 states have internal predecessors, (115), 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 131 [2022-09-16 11:13:26,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:27,214 INFO L225 Difference]: With dead ends: 84438 [2022-09-16 11:13:27,214 INFO L226 Difference]: Without dead ends: 84438 [2022-09-16 11:13:27,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:13:27,214 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 255 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:27,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 868 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:13:27,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84438 states. [2022-09-16 11:13:29,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84438 to 75114. [2022-09-16 11:13:29,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75114 states, 75097 states have (on average 3.9612501165159726) internal successors, (297478), 75113 states have internal predecessors, (297478), 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) [2022-09-16 11:13:29,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75114 states to 75114 states and 297478 transitions. [2022-09-16 11:13:29,812 INFO L78 Accepts]: Start accepts. Automaton has 75114 states and 297478 transitions. Word has length 131 [2022-09-16 11:13:29,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:29,813 INFO L495 AbstractCegarLoop]: Abstraction has 75114 states and 297478 transitions. [2022-09-16 11:13:29,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.0) internal successors, (115), 6 states have internal predecessors, (115), 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) [2022-09-16 11:13:29,813 INFO L276 IsEmpty]: Start isEmpty. Operand 75114 states and 297478 transitions. [2022-09-16 11:13:29,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-09-16 11:13:29,820 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:29,820 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:13:29,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-09-16 11:13:30,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-09-16 11:13:30,037 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:13:30,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:30,037 INFO L85 PathProgramCache]: Analyzing trace with hash -638599123, now seen corresponding path program 2 times [2022-09-16 11:13:30,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:30,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835420577] [2022-09-16 11:13:30,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:30,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:30,083 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-09-16 11:13:30,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:30,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835420577] [2022-09-16 11:13:30,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835420577] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:13:30,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97648021] [2022-09-16 11:13:30,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 11:13:30,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:30,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:13:30,085 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:13:30,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-09-16 11:13:30,158 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 11:13:30,159 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:13:30,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:13:30,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:13:30,277 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-09-16 11:13:30,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:13:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-09-16 11:13:30,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97648021] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:13:30,376 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:13:30,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-09-16 11:13:30,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458320495] [2022-09-16 11:13:30,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:13:30,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-16 11:13:30,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:30,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-16 11:13:30,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-09-16 11:13:30,378 INFO L87 Difference]: Start difference. First operand 75114 states and 297478 transitions. Second operand has 10 states, 9 states have (on average 23.88888888888889) internal successors, (215), 10 states have internal predecessors, (215), 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) [2022-09-16 11:13:32,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:32,148 INFO L93 Difference]: Finished difference Result 149832 states and 586128 transitions. [2022-09-16 11:13:32,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-16 11:13:32,148 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 23.88888888888889) internal successors, (215), 10 states have internal predecessors, (215), 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 134 [2022-09-16 11:13:32,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:32,869 INFO L225 Difference]: With dead ends: 149832 [2022-09-16 11:13:32,870 INFO L226 Difference]: Without dead ends: 149832 [2022-09-16 11:13:32,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 260 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-09-16 11:13:32,870 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 627 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:32,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 1410 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:13:33,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149832 states. [2022-09-16 11:13:35,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149832 to 71370. [2022-09-16 11:13:35,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71370 states, 71359 states have (on average 3.9629058703176896) internal successors, (282789), 71369 states have internal predecessors, (282789), 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) [2022-09-16 11:13:36,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71370 states to 71370 states and 282789 transitions. [2022-09-16 11:13:36,086 INFO L78 Accepts]: Start accepts. Automaton has 71370 states and 282789 transitions. Word has length 134 [2022-09-16 11:13:36,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:36,087 INFO L495 AbstractCegarLoop]: Abstraction has 71370 states and 282789 transitions. [2022-09-16 11:13:36,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 23.88888888888889) internal successors, (215), 10 states have internal predecessors, (215), 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) [2022-09-16 11:13:36,087 INFO L276 IsEmpty]: Start isEmpty. Operand 71370 states and 282789 transitions. [2022-09-16 11:13:36,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-09-16 11:13:36,103 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:36,103 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:13:36,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-09-16 11:13:36,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-09-16 11:13:36,304 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:13:36,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:36,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1678264210, now seen corresponding path program 1 times [2022-09-16 11:13:36,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:36,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940494987] [2022-09-16 11:13:36,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:36,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:36,351 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-09-16 11:13:36,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:36,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940494987] [2022-09-16 11:13:36,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940494987] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:13:36,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965500891] [2022-09-16 11:13:36,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:36,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:36,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:13:36,353 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:13:36,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-09-16 11:13:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:36,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:13:36,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:13:36,504 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-09-16 11:13:36,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:13:36,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965500891] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:13:36,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:13:36,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 11:13:36,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233929992] [2022-09-16 11:13:36,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:13:36,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:13:36,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:36,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:13:36,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:13:36,505 INFO L87 Difference]: Start difference. First operand 71370 states and 282789 transitions. Second operand has 6 states, 5 states have (on average 23.8) internal successors, (119), 6 states have internal predecessors, (119), 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) [2022-09-16 11:13:37,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:37,988 INFO L93 Difference]: Finished difference Result 86292 states and 337369 transitions. [2022-09-16 11:13:37,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:13:37,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.8) internal successors, (119), 6 states have internal predecessors, (119), 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 135 [2022-09-16 11:13:37,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:38,710 INFO L225 Difference]: With dead ends: 86292 [2022-09-16 11:13:38,710 INFO L226 Difference]: Without dead ends: 85527 [2022-09-16 11:13:38,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:13:38,711 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 230 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:38,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1167 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:13:38,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85527 states. [2022-09-16 11:13:40,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85527 to 44757. [2022-09-16 11:13:40,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44757 states, 44752 states have (on average 3.895311941365749) internal successors, (174323), 44756 states have internal predecessors, (174323), 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) [2022-09-16 11:13:40,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44757 states to 44757 states and 174323 transitions. [2022-09-16 11:13:40,725 INFO L78 Accepts]: Start accepts. Automaton has 44757 states and 174323 transitions. Word has length 135 [2022-09-16 11:13:40,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:40,726 INFO L495 AbstractCegarLoop]: Abstraction has 44757 states and 174323 transitions. [2022-09-16 11:13:40,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.8) internal successors, (119), 6 states have internal predecessors, (119), 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) [2022-09-16 11:13:40,726 INFO L276 IsEmpty]: Start isEmpty. Operand 44757 states and 174323 transitions. [2022-09-16 11:13:40,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-09-16 11:13:40,753 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:40,753 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:13:40,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-09-16 11:13:40,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-09-16 11:13:40,969 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:13:40,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:40,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1758436734, now seen corresponding path program 2 times [2022-09-16 11:13:40,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:40,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168847390] [2022-09-16 11:13:40,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:40,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:41,101 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 19 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-09-16 11:13:41,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:41,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168847390] [2022-09-16 11:13:41,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168847390] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:13:41,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396185711] [2022-09-16 11:13:41,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 11:13:41,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:41,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:13:41,115 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:13:41,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-09-16 11:13:41,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 11:13:41,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:13:41,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:13:41,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:13:41,361 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-09-16 11:13:41,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:13:41,482 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-09-16 11:13:41,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396185711] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:13:41,482 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:13:41,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 19 [2022-09-16 11:13:41,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428552638] [2022-09-16 11:13:41,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:13:41,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-09-16 11:13:41,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:41,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-09-16 11:13:41,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-09-16 11:13:41,483 INFO L87 Difference]: Start difference. First operand 44757 states and 174323 transitions. Second operand has 19 states, 19 states have (on average 11.789473684210526) internal successors, (224), 19 states have internal predecessors, (224), 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) [2022-09-16 11:13:43,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:43,093 INFO L93 Difference]: Finished difference Result 94379 states and 358570 transitions. [2022-09-16 11:13:43,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-09-16 11:13:43,094 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 11.789473684210526) internal successors, (224), 19 states have internal predecessors, (224), 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 139 [2022-09-16 11:13:43,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:43,791 INFO L225 Difference]: With dead ends: 94379 [2022-09-16 11:13:43,791 INFO L226 Difference]: Without dead ends: 87899 [2022-09-16 11:13:43,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 271 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=525, Invalid=2231, Unknown=0, NotChecked=0, Total=2756 [2022-09-16 11:13:43,792 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 2224 mSDsluCounter, 3193 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2224 SdHoareTripleChecker+Valid, 3257 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:43,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2224 Valid, 3257 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 11:13:43,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87899 states. [2022-09-16 11:13:45,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87899 to 46577. [2022-09-16 11:13:45,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46577 states, 46575 states have (on average 3.8386688137412777) internal successors, (178786), 46576 states have internal predecessors, (178786), 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) [2022-09-16 11:13:45,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46577 states to 46577 states and 178786 transitions. [2022-09-16 11:13:45,569 INFO L78 Accepts]: Start accepts. Automaton has 46577 states and 178786 transitions. Word has length 139 [2022-09-16 11:13:45,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:45,569 INFO L495 AbstractCegarLoop]: Abstraction has 46577 states and 178786 transitions. [2022-09-16 11:13:45,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.789473684210526) internal successors, (224), 19 states have internal predecessors, (224), 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) [2022-09-16 11:13:45,569 INFO L276 IsEmpty]: Start isEmpty. Operand 46577 states and 178786 transitions. [2022-09-16 11:13:45,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-09-16 11:13:45,585 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:45,586 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:13:45,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-09-16 11:13:45,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-09-16 11:13:45,800 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:13:45,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:45,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1953943253, now seen corresponding path program 1 times [2022-09-16 11:13:45,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:45,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090341036] [2022-09-16 11:13:45,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:45,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:45,861 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-09-16 11:13:45,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:45,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090341036] [2022-09-16 11:13:45,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090341036] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:13:45,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785316154] [2022-09-16 11:13:45,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:45,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:45,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:13:45,863 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:13:45,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-09-16 11:13:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:45,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:13:45,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:13:45,970 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-09-16 11:13:45,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:13:45,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785316154] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:13:45,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:13:45,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 11:13:45,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303724637] [2022-09-16 11:13:45,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:13:45,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:13:45,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:45,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:13:45,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:13:45,972 INFO L87 Difference]: Start difference. First operand 46577 states and 178786 transitions. Second operand has 6 states, 5 states have (on average 25.4) internal successors, (127), 6 states have internal predecessors, (127), 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) [2022-09-16 11:13:46,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:46,571 INFO L93 Difference]: Finished difference Result 44954 states and 172636 transitions. [2022-09-16 11:13:46,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:13:46,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.4) internal successors, (127), 6 states have internal predecessors, (127), 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 143 [2022-09-16 11:13:46,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:46,723 INFO L225 Difference]: With dead ends: 44954 [2022-09-16 11:13:46,723 INFO L226 Difference]: Without dead ends: 44954 [2022-09-16 11:13:46,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:13:46,723 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 183 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:46,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 876 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:13:46,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44954 states. [2022-09-16 11:13:47,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44954 to 44954. [2022-09-16 11:13:47,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44954 states, 44953 states have (on average 3.840366605120904) internal successors, (172636), 44953 states have internal predecessors, (172636), 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) [2022-09-16 11:13:48,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44954 states to 44954 states and 172636 transitions. [2022-09-16 11:13:48,032 INFO L78 Accepts]: Start accepts. Automaton has 44954 states and 172636 transitions. Word has length 143 [2022-09-16 11:13:48,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:48,033 INFO L495 AbstractCegarLoop]: Abstraction has 44954 states and 172636 transitions. [2022-09-16 11:13:48,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.4) internal successors, (127), 6 states have internal predecessors, (127), 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) [2022-09-16 11:13:48,033 INFO L276 IsEmpty]: Start isEmpty. Operand 44954 states and 172636 transitions. [2022-09-16 11:13:48,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-09-16 11:13:48,069 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:13:48,069 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:13:48,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-09-16 11:13:48,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-09-16 11:13:48,286 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:13:48,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:13:48,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2125124270, now seen corresponding path program 2 times [2022-09-16 11:13:48,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:13:48,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112848469] [2022-09-16 11:13:48,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:13:48,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:13:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:13:48,490 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 19 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-09-16 11:13:48,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:13:48,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112848469] [2022-09-16 11:13:48,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112848469] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:13:48,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230335723] [2022-09-16 11:13:48,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 11:13:48,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:48,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:13:48,492 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:13:48,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-09-16 11:13:48,615 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 11:13:48,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:13:48,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:13:48,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:13:48,794 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-09-16 11:13:48,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:13:48,926 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-09-16 11:13:48,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230335723] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:13:48,926 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:13:48,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 19 [2022-09-16 11:13:48,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388550334] [2022-09-16 11:13:48,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:13:48,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-09-16 11:13:48,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:13:48,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-09-16 11:13:48,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-09-16 11:13:48,927 INFO L87 Difference]: Start difference. First operand 44954 states and 172636 transitions. Second operand has 19 states, 19 states have (on average 13.052631578947368) internal successors, (248), 19 states have internal predecessors, (248), 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) [2022-09-16 11:13:50,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:13:50,080 INFO L93 Difference]: Finished difference Result 43763 states and 163915 transitions. [2022-09-16 11:13:50,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 11:13:50,081 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.052631578947368) internal successors, (248), 19 states have internal predecessors, (248), 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 151 [2022-09-16 11:13:50,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:13:50,081 INFO L225 Difference]: With dead ends: 43763 [2022-09-16 11:13:50,081 INFO L226 Difference]: Without dead ends: 0 [2022-09-16 11:13:50,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 295 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=457, Invalid=1895, Unknown=0, NotChecked=0, Total=2352 [2022-09-16 11:13:50,082 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 1390 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 3040 SdHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 11:13:50,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1390 Valid, 3040 Invalid, 1103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 11:13:50,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-09-16 11:13:50,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-09-16 11:13:50,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:13:50,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-09-16 11:13:50,083 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 151 [2022-09-16 11:13:50,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:13:50,083 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-16 11:13:50,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.052631578947368) internal successors, (248), 19 states have internal predecessors, (248), 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) [2022-09-16 11:13:50,083 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-09-16 11:13:50,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-09-16 11:13:50,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 19 remaining) [2022-09-16 11:13:50,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2022-09-16 11:13:50,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2022-09-16 11:13:50,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2022-09-16 11:13:50,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2022-09-16 11:13:50,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2022-09-16 11:13:50,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2022-09-16 11:13:50,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2022-09-16 11:13:50,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2022-09-16 11:13:50,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2022-09-16 11:13:50,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 19 remaining) [2022-09-16 11:13:50,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 19 remaining) [2022-09-16 11:13:50,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 19 remaining) [2022-09-16 11:13:50,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2022-09-16 11:13:50,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2022-09-16 11:13:50,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2022-09-16 11:13:50,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2022-09-16 11:13:50,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2022-09-16 11:13:50,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2022-09-16 11:13:50,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-09-16 11:13:50,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:13:50,306 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:13:50,309 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:13:50,309 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:13:50,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:13:50 BasicIcfg [2022-09-16 11:13:50,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:13:50,311 INFO L158 Benchmark]: Toolchain (without parser) took 74545.32ms. Allocated memory was 187.7MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 162.1MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. [2022-09-16 11:13:50,311 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 187.7MB. Free memory is still 148.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:13:50,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.10ms. Allocated memory is still 187.7MB. Free memory was 161.8MB in the beginning and 159.3MB in the end (delta: 2.5MB). Peak memory consumption was 7.6MB. Max. memory is 8.0GB. [2022-09-16 11:13:50,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.71ms. Allocated memory is still 187.7MB. Free memory was 159.3MB in the beginning and 157.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:13:50,312 INFO L158 Benchmark]: Boogie Preprocessor took 20.91ms. Allocated memory is still 187.7MB. Free memory was 157.3MB in the beginning and 155.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 11:13:50,312 INFO L158 Benchmark]: RCFGBuilder took 474.65ms. Allocated memory is still 187.7MB. Free memory was 155.5MB in the beginning and 137.0MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-09-16 11:13:50,312 INFO L158 Benchmark]: TraceAbstraction took 73830.90ms. Allocated memory was 187.7MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 136.3MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. [2022-09-16 11:13:50,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 187.7MB. Free memory is still 148.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 178.10ms. Allocated memory is still 187.7MB. Free memory was 161.8MB in the beginning and 159.3MB in the end (delta: 2.5MB). Peak memory consumption was 7.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.71ms. Allocated memory is still 187.7MB. Free memory was 159.3MB in the beginning and 157.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.91ms. Allocated memory is still 187.7MB. Free memory was 157.3MB in the beginning and 155.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 474.65ms. Allocated memory is still 187.7MB. Free memory was 155.5MB in the beginning and 137.0MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 73830.90ms. Allocated memory was 187.7MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 136.3MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 113]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 113]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 113]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 113]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 237 locations, 19 error locations. Started 1 CEGAR loops. OverallTime: 73.7s, OverallIterations: 19, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.5s, AutomataDifference: 29.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20489 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20489 mSDsluCounter, 26521 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23842 mSDsCounter, 614 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6712 IncrementalHoareTripleChecker+Invalid, 7326 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 614 mSolverCounterUnsat, 4272 mSDtfsCounter, 6712 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2853 GetRequests, 2423 SyntacticMatches, 18 SemanticMatches, 412 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3311 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78330occurred in iteration=11, InterpolantAutomatonStates: 303, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 33.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 492756 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 3632 NumberOfCodeBlocks, 3460 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 4513 ConstructedInterpolants, 0 QuantifiedInterpolants, 9823 SizeOfPredicates, 70 NumberOfNonLiveVariables, 3379 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 41 InterpolantComputations, 11 PerfectInterpolantSequences, 546/810 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:13:50,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...