/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-bad-buffer-mult-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:56:55,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:56:55,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:56:55,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:56:55,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:56:55,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:56:55,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:56:55,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:56:55,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:56:55,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:56:55,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:56:55,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:56:55,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:56:55,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:56:55,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:56:55,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:56:55,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:56:55,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:56:55,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:56:55,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:56:55,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:56:55,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:56:55,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:56:55,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:56:55,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:56:55,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:56:55,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:56:55,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:56:55,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:56:55,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:56:55,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:56:55,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:56:55,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:56:55,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:56:55,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:56:55,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:56:55,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:56:55,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:56:55,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:56:55,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:56:55,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:56:55,581 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 10:56:55,610 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:56:55,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:56:55,611 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:56:55,611 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:56:55,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:56:55,612 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:56:55,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:56:55,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:56:55,612 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:56:55,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:56:55,613 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:56:55,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:56:55,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:56:55,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:56:55,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:56:55,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:56:55,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:56:55,614 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:56:55,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:56:55,614 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:56:55,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:56:55,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:56:55,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:56:55,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:56:55,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:56:55,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:56:55,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:56:55,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:56:55,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:56:55,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:56:55,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:56:55,615 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:56:55,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:56:55,616 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:56:55,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:56:55,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:56:55,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:56:55,822 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:56:55,823 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:56:55,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c [2022-09-16 10:56:55,873 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca011297/2ff31b40f4704330b2bd0abd35ebf41c/FLAGe321766d1 [2022-09-16 10:56:56,275 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:56:56,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c [2022-09-16 10:56:56,282 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca011297/2ff31b40f4704330b2bd0abd35ebf41c/FLAGe321766d1 [2022-09-16 10:56:56,296 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca011297/2ff31b40f4704330b2bd0abd35ebf41c [2022-09-16 10:56:56,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:56:56,299 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:56:56,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:56:56,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:56:56,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:56:56,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:56:56" (1/1) ... [2022-09-16 10:56:56,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ed075e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:56:56, skipping insertion in model container [2022-09-16 10:56:56,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:56:56" (1/1) ... [2022-09-16 10:56:56,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:56:56,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:56:56,582 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-bad-buffer-mult-alt.wvr.c[4293,4306] [2022-09-16 10:56:56,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:56:56,601 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:56:56,641 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-bad-buffer-mult-alt.wvr.c[4293,4306] [2022-09-16 10:56:56,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:56:56,655 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:56:56,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:56:56 WrapperNode [2022-09-16 10:56:56,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:56:56,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:56:56,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:56:56,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:56:56,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:56:56" (1/1) ... [2022-09-16 10:56:56,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:56:56" (1/1) ... [2022-09-16 10:56:56,719 INFO L138 Inliner]: procedures = 26, calls = 79, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 365 [2022-09-16 10:56:56,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:56:56,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:56:56,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:56:56,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:56:56,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:56:56" (1/1) ... [2022-09-16 10:56:56,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:56:56" (1/1) ... [2022-09-16 10:56:56,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:56:56" (1/1) ... [2022-09-16 10:56:56,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:56:56" (1/1) ... [2022-09-16 10:56:56,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:56:56" (1/1) ... [2022-09-16 10:56:56,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:56:56" (1/1) ... [2022-09-16 10:56:56,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:56:56" (1/1) ... [2022-09-16 10:56:56,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:56:56,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:56:56,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:56:56,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:56:56,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:56:56" (1/1) ... [2022-09-16 10:56:56,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:56:56,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:56:56,793 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 10:56:56,821 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 10:56:56,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:56:56,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:56:56,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:56:56,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:56:56,838 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:56:56,838 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:56:56,838 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:56:56,838 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:56:56,838 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 10:56:56,838 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 10:56:56,838 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-09-16 10:56:56,838 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-09-16 10:56:56,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:56:56,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:56:56,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:56:56,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 10:56:56,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:56:56,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:56:56,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:56:56,840 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 10:56:56,975 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:56:56,976 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:56:57,471 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:56:57,738 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:56:57,738 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-09-16 10:56:57,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:56:57 BoogieIcfgContainer [2022-09-16 10:56:57,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:56:57,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:56:57,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:56:57,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:56:57,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:56:56" (1/3) ... [2022-09-16 10:56:57,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7347e0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:56:57, skipping insertion in model container [2022-09-16 10:56:57,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:56:56" (2/3) ... [2022-09-16 10:56:57,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7347e0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:56:57, skipping insertion in model container [2022-09-16 10:56:57,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:56:57" (3/3) ... [2022-09-16 10:56:57,747 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt.wvr.c [2022-09-16 10:56:57,753 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:56:57,760 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:56:57,760 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-09-16 10:56:57,760 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:56:57,889 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-09-16 10:56:57,926 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 274 places, 280 transitions, 592 flow [2022-09-16 10:57:03,120 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 177282 states, 174444 states have (on average 4.978835614867808) internal successors, (868528), 177281 states have internal predecessors, (868528), 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 10:57:03,152 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:57:03,159 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;@1d5ddfa5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:57:03,159 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-09-16 10:57:03,528 INFO L276 IsEmpty]: Start isEmpty. Operand has 177282 states, 174444 states have (on average 4.978835614867808) internal successors, (868528), 177281 states have internal predecessors, (868528), 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 10:57:03,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-09-16 10:57:03,542 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:57:03,543 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] [2022-09-16 10:57:03,544 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:57:03,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:57:03,569 INFO L85 PathProgramCache]: Analyzing trace with hash 7201232, now seen corresponding path program 1 times [2022-09-16 10:57:03,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:57:03,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113556173] [2022-09-16 10:57:03,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:57:03,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:57:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:57:03,924 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 10:57:03,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:57:03,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113556173] [2022-09-16 10:57:03,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113556173] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:57:03,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:57:03,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:57:03,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508194371] [2022-09-16 10:57:03,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:57:03,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:57:03,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:57:03,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:57:03,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:57:04,847 INFO L87 Difference]: Start difference. First operand has 177282 states, 174444 states have (on average 4.978835614867808) internal successors, (868528), 177281 states have internal predecessors, (868528), 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 28.0) internal successors, (84), 4 states have internal predecessors, (84), 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 10:57:08,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:57:08,817 INFO L93 Difference]: Finished difference Result 198665 states and 914223 transitions. [2022-09-16 10:57:08,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:57:08,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 28.0) internal successors, (84), 4 states have internal predecessors, (84), 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 84 [2022-09-16 10:57:08,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:57:11,679 INFO L225 Difference]: With dead ends: 198665 [2022-09-16 10:57:11,679 INFO L226 Difference]: Without dead ends: 198657 [2022-09-16 10:57:11,680 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 10:57:11,684 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 125 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:57:11,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 556 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:57:12,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198657 states. [2022-09-16 10:57:18,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198657 to 99392. [2022-09-16 10:57:19,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99392 states, 98525 states have (on average 4.64017254503933) internal successors, (457173), 99391 states have internal predecessors, (457173), 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 10:57:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99392 states to 99392 states and 457173 transitions. [2022-09-16 10:57:20,951 INFO L78 Accepts]: Start accepts. Automaton has 99392 states and 457173 transitions. Word has length 84 [2022-09-16 10:57:20,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:57:20,957 INFO L495 AbstractCegarLoop]: Abstraction has 99392 states and 457173 transitions. [2022-09-16 10:57:20,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 28.0) internal successors, (84), 4 states have internal predecessors, (84), 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 10:57:20,958 INFO L276 IsEmpty]: Start isEmpty. Operand 99392 states and 457173 transitions. [2022-09-16 10:57:20,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-09-16 10:57:20,970 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:57:20,970 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] [2022-09-16 10:57:20,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:57:20,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:57:20,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:57:20,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1702232982, now seen corresponding path program 1 times [2022-09-16 10:57:20,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:57:20,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617439989] [2022-09-16 10:57:20,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:57:20,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:57:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:57:21,137 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 10:57:21,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:57:21,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617439989] [2022-09-16 10:57:21,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617439989] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:57:21,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421953484] [2022-09-16 10:57:21,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:57:21,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:57:21,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:57:21,141 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 10:57:21,144 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 10:57:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:57:21,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:57:21,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:57:21,405 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 10:57:21,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:57:21,459 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 10:57:21,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421953484] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:57:21,463 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:57:21,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 10:57:21,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450745445] [2022-09-16 10:57:21,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:57:21,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 10:57:21,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:57:21,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 10:57:21,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:57:21,475 INFO L87 Difference]: Start difference. First operand 99392 states and 457173 transitions. Second operand has 12 states, 11 states have (on average 10.727272727272727) internal successors, (118), 12 states have internal predecessors, (118), 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 10:57:30,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:57:30,328 INFO L93 Difference]: Finished difference Result 496498 states and 2285393 transitions. [2022-09-16 10:57:30,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:57:30,328 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.727272727272727) internal successors, (118), 12 states have internal predecessors, (118), 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 93 [2022-09-16 10:57:30,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:57:38,534 INFO L225 Difference]: With dead ends: 496498 [2022-09-16 10:57:38,535 INFO L226 Difference]: Without dead ends: 496498 [2022-09-16 10:57:38,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 179 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 10:57:38,542 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 509 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:57:38,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1664 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:57:39,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496498 states. [2022-09-16 10:57:52,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496498 to 99444. [2022-09-16 10:57:53,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99444 states, 98577 states have (on average 4.638353774206965) internal successors, (457235), 99443 states have internal predecessors, (457235), 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 10:57:54,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99444 states to 99444 states and 457235 transitions. [2022-09-16 10:57:54,151 INFO L78 Accepts]: Start accepts. Automaton has 99444 states and 457235 transitions. Word has length 93 [2022-09-16 10:57:54,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:57:54,153 INFO L495 AbstractCegarLoop]: Abstraction has 99444 states and 457235 transitions. [2022-09-16 10:57:54,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.727272727272727) internal successors, (118), 12 states have internal predecessors, (118), 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 10:57:54,153 INFO L276 IsEmpty]: Start isEmpty. Operand 99444 states and 457235 transitions. [2022-09-16 10:57:54,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-09-16 10:57:54,159 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:57:54,159 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:57:54,176 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-09-16 10:57:54,375 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 10:57:54,376 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:57:54,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:57:54,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1229613867, now seen corresponding path program 1 times [2022-09-16 10:57:54,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:57:54,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385324741] [2022-09-16 10:57:54,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:57:54,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:57:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:57:54,536 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:57:54,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:57:54,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385324741] [2022-09-16 10:57:54,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385324741] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:57:54,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115118810] [2022-09-16 10:57:54,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:57:54,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:57:54,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:57:54,540 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 10:57:54,561 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 10:57:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:57:54,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:57:54,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:57:54,769 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:57:54,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:57:54,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115118810] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:57:54,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:57:54,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:57:54,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351891392] [2022-09-16 10:57:54,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:57:54,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:57:54,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:57:54,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:57:54,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:57:54,772 INFO L87 Difference]: Start difference. First operand 99444 states and 457235 transitions. Second operand has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 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 10:57:58,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:57:58,107 INFO L93 Difference]: Finished difference Result 198703 states and 914267 transitions. [2022-09-16 10:57:58,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:57:58,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 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 10:57:58,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:01,084 INFO L225 Difference]: With dead ends: 198703 [2022-09-16 10:58:01,085 INFO L226 Difference]: Without dead ends: 198703 [2022-09-16 10:58:01,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 92 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 10:58:01,087 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 249 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:01,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 1033 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:58:02,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198703 states. [2022-09-16 10:58:08,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198703 to 99442. [2022-09-16 10:58:08,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99442 states, 98577 states have (on average 4.638292908082007) internal successors, (457229), 99441 states have internal predecessors, (457229), 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 10:58:09,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99442 states to 99442 states and 457229 transitions. [2022-09-16 10:58:09,643 INFO L78 Accepts]: Start accepts. Automaton has 99442 states and 457229 transitions. Word has length 94 [2022-09-16 10:58:09,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:09,645 INFO L495 AbstractCegarLoop]: Abstraction has 99442 states and 457229 transitions. [2022-09-16 10:58:09,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 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 10:58:09,645 INFO L276 IsEmpty]: Start isEmpty. Operand 99442 states and 457229 transitions. [2022-09-16 10:58:09,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-09-16 10:58:09,651 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:09,652 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:58:09,680 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 10:58:09,883 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 10:58:09,884 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:58:09,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:09,891 INFO L85 PathProgramCache]: Analyzing trace with hash -402412464, now seen corresponding path program 2 times [2022-09-16 10:58:09,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:09,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698073079] [2022-09-16 10:58:09,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:09,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:10,096 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:10,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:10,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698073079] [2022-09-16 10:58:10,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698073079] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:58:10,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846014981] [2022-09-16 10:58:10,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:58:10,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:58:10,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:58:10,119 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 10:58:10,136 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 10:58:10,288 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:58:10,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:58:10,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 10:58:10,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:58:10,451 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 10:58:10,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:58:10,604 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 10:58:10,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846014981] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:58:10,605 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:58:10,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-09-16 10:58:10,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6560823] [2022-09-16 10:58:10,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:58:10,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 10:58:10,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:10,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 10:58:10,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-09-16 10:58:10,606 INFO L87 Difference]: Start difference. First operand 99442 states and 457229 transitions. Second operand has 18 states, 17 states have (on average 9.529411764705882) internal successors, (162), 18 states have internal predecessors, (162), 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 10:58:21,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:58:21,240 INFO L93 Difference]: Finished difference Result 582816 states and 2679407 transitions. [2022-09-16 10:58:21,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-09-16 10:58:21,240 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 9.529411764705882) internal successors, (162), 18 states have internal predecessors, (162), 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 120 [2022-09-16 10:58:21,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:31,231 INFO L225 Difference]: With dead ends: 582816 [2022-09-16 10:58:31,234 INFO L226 Difference]: Without dead ends: 582816 [2022-09-16 10:58:31,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 229 SyntacticMatches, 5 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=991, Invalid=3041, Unknown=0, NotChecked=0, Total=4032 [2022-09-16 10:58:31,238 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 3383 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3383 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:31,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3383 Valid, 1567 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:58:32,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582816 states. [2022-09-16 10:58:47,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582816 to 83394. [2022-09-16 10:58:47,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83394 states, 82854 states have (on average 4.621539092862143) internal successors, (382913), 83393 states have internal predecessors, (382913), 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 10:58:48,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83394 states to 83394 states and 382913 transitions. [2022-09-16 10:58:48,334 INFO L78 Accepts]: Start accepts. Automaton has 83394 states and 382913 transitions. Word has length 120 [2022-09-16 10:58:48,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:48,334 INFO L495 AbstractCegarLoop]: Abstraction has 83394 states and 382913 transitions. [2022-09-16 10:58:48,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 9.529411764705882) internal successors, (162), 18 states have internal predecessors, (162), 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 10:58:48,335 INFO L276 IsEmpty]: Start isEmpty. Operand 83394 states and 382913 transitions. [2022-09-16 10:58:48,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-09-16 10:58:48,335 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:48,336 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, 1, 1, 1, 1, 1, 1, 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 10:58:48,353 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 10:58:48,553 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 10:58:48,553 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:58:48,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:48,554 INFO L85 PathProgramCache]: Analyzing trace with hash 229201863, now seen corresponding path program 1 times [2022-09-16 10:58:48,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:48,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54198823] [2022-09-16 10:58:48,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:48,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:48,617 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 10:58:48,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:48,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54198823] [2022-09-16 10:58:48,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54198823] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:58:48,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:58:48,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:58:48,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381643454] [2022-09-16 10:58:48,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:58:48,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:58:48,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:48,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:58:48,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:58:48,618 INFO L87 Difference]: Start difference. First operand 83394 states and 382913 transitions. Second operand has 3 states, 2 states have (on average 65.5) internal successors, (131), 3 states have internal predecessors, (131), 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 10:58:50,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:58:50,603 INFO L93 Difference]: Finished difference Result 135369 states and 620495 transitions. [2022-09-16 10:58:50,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:58:50,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 65.5) internal successors, (131), 3 states have internal predecessors, (131), 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 10:58:50,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:52,001 INFO L225 Difference]: With dead ends: 135369 [2022-09-16 10:58:52,001 INFO L226 Difference]: Without dead ends: 135369 [2022-09-16 10:58:52,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:58:52,002 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 88 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:52,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 244 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:58:52,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135369 states. [2022-09-16 10:58:56,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135369 to 106812. [2022-09-16 10:58:57,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106812 states, 106272 states have (on average 4.6997986299307435) internal successors, (499457), 106811 states have internal predecessors, (499457), 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 10:58:58,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106812 states to 106812 states and 499457 transitions. [2022-09-16 10:58:58,433 INFO L78 Accepts]: Start accepts. Automaton has 106812 states and 499457 transitions. Word has length 131 [2022-09-16 10:58:58,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:58,434 INFO L495 AbstractCegarLoop]: Abstraction has 106812 states and 499457 transitions. [2022-09-16 10:58:58,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 65.5) internal successors, (131), 3 states have internal predecessors, (131), 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 10:58:58,434 INFO L276 IsEmpty]: Start isEmpty. Operand 106812 states and 499457 transitions. [2022-09-16 10:58:58,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-09-16 10:58:58,435 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:58,435 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:58:58,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:58:58,435 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:58:58,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:58,436 INFO L85 PathProgramCache]: Analyzing trace with hash -398765022, now seen corresponding path program 1 times [2022-09-16 10:58:58,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:58,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421408493] [2022-09-16 10:58:58,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:58,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:58,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:58,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:58,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421408493] [2022-09-16 10:58:58,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421408493] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:58:58,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704888337] [2022-09-16 10:58:58,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:58,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:58:58,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:58:58,515 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 10:58:58,556 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 10:58:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:58,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:58:58,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:58:58,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:58,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:58:58,933 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:58,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704888337] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:58:58,933 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:58:58,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-09-16 10:58:58,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738153574] [2022-09-16 10:58:58,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:58:58,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:58:58,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:58,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:58:58,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:58:58,934 INFO L87 Difference]: Start difference. First operand 106812 states and 499457 transitions. Second operand has 7 states, 6 states have (on average 63.5) internal successors, (381), 7 states have internal predecessors, (381), 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 10:59:03,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:03,910 INFO L93 Difference]: Finished difference Result 314712 states and 1465505 transitions. [2022-09-16 10:59:03,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:59:03,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 63.5) internal successors, (381), 7 states have internal predecessors, (381), 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 10:59:03,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:08,279 INFO L225 Difference]: With dead ends: 314712 [2022-09-16 10:59:08,279 INFO L226 Difference]: Without dead ends: 314712 [2022-09-16 10:59:08,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:59:08,282 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 657 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:08,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 483 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:59:09,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314712 states. [2022-09-16 10:59:18,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314712 to 200484. [2022-09-16 10:59:19,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200484 states, 199944 states have (on average 4.908139278998119) internal successors, (981353), 200483 states have internal predecessors, (981353), 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 10:59:23,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200484 states to 200484 states and 981353 transitions. [2022-09-16 10:59:23,506 INFO L78 Accepts]: Start accepts. Automaton has 200484 states and 981353 transitions. Word has length 135 [2022-09-16 10:59:23,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:23,506 INFO L495 AbstractCegarLoop]: Abstraction has 200484 states and 981353 transitions. [2022-09-16 10:59:23,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 63.5) internal successors, (381), 7 states have internal predecessors, (381), 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 10:59:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 200484 states and 981353 transitions. [2022-09-16 10:59:23,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-09-16 10:59:23,508 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:23,508 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:23,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-16 10:59:23,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:59:23,724 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:59:23,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:23,724 INFO L85 PathProgramCache]: Analyzing trace with hash -398765021, now seen corresponding path program 1 times [2022-09-16 10:59:23,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:23,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29248051] [2022-09-16 10:59:23,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:23,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:23,785 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:59:23,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:23,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29248051] [2022-09-16 10:59:23,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29248051] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:59:23,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:59:23,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:59:23,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617269535] [2022-09-16 10:59:23,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:59:23,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:59:23,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:23,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:59:23,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:59:23,787 INFO L87 Difference]: Start difference. First operand 200484 states and 981353 transitions. Second operand has 3 states, 2 states have (on average 67.5) internal successors, (135), 3 states have internal predecessors, (135), 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 10:59:28,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:28,322 INFO L93 Difference]: Finished difference Result 192678 states and 921653 transitions. [2022-09-16 10:59:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:59:28,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 67.5) internal successors, (135), 3 states have internal predecessors, (135), 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 10:59:28,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:31,585 INFO L225 Difference]: With dead ends: 192678 [2022-09-16 10:59:31,586 INFO L226 Difference]: Without dead ends: 192678 [2022-09-16 10:59:31,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:59:31,592 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 206 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:31,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 199 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:59:32,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192678 states. [2022-09-16 10:59:39,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192678 to 192678. [2022-09-16 10:59:40,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192678 states, 192318 states have (on average 4.792338730644038) internal successors, (921653), 192677 states have internal predecessors, (921653), 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 10:59:43,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192678 states to 192678 states and 921653 transitions. [2022-09-16 10:59:43,385 INFO L78 Accepts]: Start accepts. Automaton has 192678 states and 921653 transitions. Word has length 135 [2022-09-16 10:59:43,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:43,385 INFO L495 AbstractCegarLoop]: Abstraction has 192678 states and 921653 transitions. [2022-09-16 10:59:43,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 67.5) internal successors, (135), 3 states have internal predecessors, (135), 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 10:59:43,386 INFO L276 IsEmpty]: Start isEmpty. Operand 192678 states and 921653 transitions. [2022-09-16 10:59:43,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-09-16 10:59:43,401 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:43,401 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:43,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:59:43,401 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:59:43,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:43,402 INFO L85 PathProgramCache]: Analyzing trace with hash -281904804, now seen corresponding path program 1 times [2022-09-16 10:59:43,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:43,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090959604] [2022-09-16 10:59:43,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:43,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:43,496 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 10:59:43,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:43,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090959604] [2022-09-16 10:59:43,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090959604] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:59:43,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:59:43,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:59:43,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696885503] [2022-09-16 10:59:43,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:59:43,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:59:43,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:43,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:59:43,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:59:43,500 INFO L87 Difference]: Start difference. First operand 192678 states and 921653 transitions. Second operand has 6 states, 5 states have (on average 27.2) internal successors, (136), 6 states have internal predecessors, (136), 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 10:59:48,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:48,862 INFO L93 Difference]: Finished difference Result 242190 states and 1139390 transitions. [2022-09-16 10:59:48,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:59:48,863 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.2) internal successors, (136), 6 states have internal predecessors, (136), 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 136 [2022-09-16 10:59:48,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:52,469 INFO L225 Difference]: With dead ends: 242190 [2022-09-16 10:59:52,469 INFO L226 Difference]: Without dead ends: 240615 [2022-09-16 10:59:52,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:59:52,470 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 497 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:52,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 678 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:59:53,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240615 states. [2022-09-16 11:00:03,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240615 to 231147. [2022-09-16 11:00:04,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231147 states, 230760 states have (on average 4.731040908302999) internal successors, (1091735), 231146 states have internal predecessors, (1091735), 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 11:00:06,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231147 states to 231147 states and 1091735 transitions. [2022-09-16 11:00:06,986 INFO L78 Accepts]: Start accepts. Automaton has 231147 states and 1091735 transitions. Word has length 136 [2022-09-16 11:00:06,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:00:06,987 INFO L495 AbstractCegarLoop]: Abstraction has 231147 states and 1091735 transitions. [2022-09-16 11:00:06,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.2) internal successors, (136), 6 states have internal predecessors, (136), 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 11:00:06,988 INFO L276 IsEmpty]: Start isEmpty. Operand 231147 states and 1091735 transitions. [2022-09-16 11:00:06,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-09-16 11:00:06,990 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:00:06,990 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:00:06,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 11:00:06,990 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:00:06,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:00:06,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1424005910, now seen corresponding path program 1 times [2022-09-16 11:00:06,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:00:06,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204319823] [2022-09-16 11:00:06,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:06,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:00:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:07,088 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 11:00:07,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:00:07,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204319823] [2022-09-16 11:00:07,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204319823] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:00:07,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:00:07,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:00:07,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383154829] [2022-09-16 11:00:07,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:00:07,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:00:07,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:00:07,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:00:07,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:00:07,090 INFO L87 Difference]: Start difference. First operand 231147 states and 1091735 transitions. Second operand has 5 states, 4 states have (on average 35.5) internal successors, (142), 5 states have internal predecessors, (142), 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 11:00:11,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:00:11,343 INFO L93 Difference]: Finished difference Result 235656 states and 1095308 transitions. [2022-09-16 11:00:11,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:00:11,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 35.5) internal successors, (142), 5 states have internal predecessors, (142), 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 142 [2022-09-16 11:00:11,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:00:15,608 INFO L225 Difference]: With dead ends: 235656 [2022-09-16 11:00:15,608 INFO L226 Difference]: Without dead ends: 233532 [2022-09-16 11:00:15,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:00:15,609 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 143 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:00:15,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 522 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:00:16,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233532 states. [2022-09-16 11:00:24,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233532 to 226107. [2022-09-16 11:00:25,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226107 states, 225685 states have (on average 4.687843675919977) internal successors, (1057976), 226106 states have internal predecessors, (1057976), 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 11:00:27,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226107 states to 226107 states and 1057976 transitions. [2022-09-16 11:00:27,897 INFO L78 Accepts]: Start accepts. Automaton has 226107 states and 1057976 transitions. Word has length 142 [2022-09-16 11:00:27,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:00:27,897 INFO L495 AbstractCegarLoop]: Abstraction has 226107 states and 1057976 transitions. [2022-09-16 11:00:27,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 35.5) internal successors, (142), 5 states have internal predecessors, (142), 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 11:00:27,898 INFO L276 IsEmpty]: Start isEmpty. Operand 226107 states and 1057976 transitions. [2022-09-16 11:00:27,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-09-16 11:00:27,902 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:00:27,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:00:27,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 11:00:27,903 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:00:27,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:00:27,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1185932405, now seen corresponding path program 1 times [2022-09-16 11:00:27,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:00:27,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676853104] [2022-09-16 11:00:27,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:27,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:00:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:28,038 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 11:00:28,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:00:28,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676853104] [2022-09-16 11:00:28,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676853104] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:00:28,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:00:28,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:00:28,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341408814] [2022-09-16 11:00:28,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:00:28,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:00:28,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:00:28,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:00:28,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:00:28,040 INFO L87 Difference]: Start difference. First operand 226107 states and 1057976 transitions. Second operand has 6 states, 5 states have (on average 29.0) internal successors, (145), 6 states have internal predecessors, (145), 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 11:00:32,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:00:32,219 INFO L93 Difference]: Finished difference Result 256925 states and 1187001 transitions. [2022-09-16 11:00:32,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:00:32,220 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.0) internal successors, (145), 6 states have internal predecessors, (145), 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 145 [2022-09-16 11:00:32,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:00:35,423 INFO L225 Difference]: With dead ends: 256925 [2022-09-16 11:00:35,426 INFO L226 Difference]: Without dead ends: 253538 [2022-09-16 11:00:35,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-09-16 11:00:35,427 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 174 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:00:35,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 804 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:00:35,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253538 states. [2022-09-16 11:00:47,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253538 to 238455. [2022-09-16 11:00:48,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238455 states, 237963 states have (on average 4.676029466765842) internal successors, (1112722), 238454 states have internal predecessors, (1112722), 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)