/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-more-buffer-mult.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:06:30,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:06:30,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:06:30,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:06:30,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:06:30,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:06:30,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:06:30,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:06:30,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:06:30,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:06:30,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:06:30,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:06:30,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:06:30,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:06:30,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:06:30,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:06:30,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:06:30,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:06:30,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:06:30,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:06:30,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:06:30,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:06:30,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:06:30,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:06:30,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:06:30,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:06:30,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:06:30,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:06:30,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:06:30,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:06:30,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:06:30,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:06:30,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:06:30,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:06:30,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:06:30,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:06:30,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:06:30,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:06:30,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:06:30,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:06:30,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:06:30,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 11:06:30,747 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:06:30,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:06:30,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 11:06:30,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 11:06:30,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:06:30,749 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:06:30,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:06:30,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:06:30,749 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:06:30,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:06:30,750 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:06:30,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:06:30,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:06:30,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:06:30,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:06:30,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:06:30,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:06:30,751 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:06:30,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:06:30,751 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:06:30,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:06:30,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:06:30,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:06:30,751 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:06:30,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:06:30,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:06:30,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:06:30,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:06:30,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:06:30,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:06:30,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:06:30,752 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:06:30,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 11:06:30,753 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:06:30,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:06:30,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:06:30,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:06:31,000 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:06:31,001 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:06:31,002 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c [2022-09-16 11:06:31,057 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9b17adee/b2ce924c2215411391e987ac73a6b717/FLAGb98c4846b [2022-09-16 11:06:31,380 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:06:31,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c [2022-09-16 11:06:31,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9b17adee/b2ce924c2215411391e987ac73a6b717/FLAGb98c4846b [2022-09-16 11:06:31,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9b17adee/b2ce924c2215411391e987ac73a6b717 [2022-09-16 11:06:31,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:06:31,801 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:06:31,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:06:31,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:06:31,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:06:31,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:06:31" (1/1) ... [2022-09-16 11:06:31,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7945cd2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:06:31, skipping insertion in model container [2022-09-16 11:06:31,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:06:31" (1/1) ... [2022-09-16 11:06:31,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:06:31,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:06:32,000 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-more-buffer-mult.wvr.c[4218,4231] [2022-09-16 11:06:32,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:06:32,012 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:06:32,036 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-more-buffer-mult.wvr.c[4218,4231] [2022-09-16 11:06:32,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:06:32,053 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:06:32,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:06:32 WrapperNode [2022-09-16 11:06:32,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:06:32,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:06:32,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:06:32,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:06:32,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:06:32" (1/1) ... [2022-09-16 11:06:32,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:06:32" (1/1) ... [2022-09-16 11:06:32,106 INFO L138 Inliner]: procedures = 27, calls = 80, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 353 [2022-09-16 11:06:32,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:06:32,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:06:32,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:06:32,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:06:32,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:06:32" (1/1) ... [2022-09-16 11:06:32,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:06:32" (1/1) ... [2022-09-16 11:06:32,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:06:32" (1/1) ... [2022-09-16 11:06:32,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:06:32" (1/1) ... [2022-09-16 11:06:32,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:06:32" (1/1) ... [2022-09-16 11:06:32,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:06:32" (1/1) ... [2022-09-16 11:06:32,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:06:32" (1/1) ... [2022-09-16 11:06:32,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:06:32,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:06:32,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:06:32,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:06:32,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:06:32" (1/1) ... [2022-09-16 11:06:32,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:06:32,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:06:32,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 11:06:32,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 11:06:32,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:06:32,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:06:32,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:06:32,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:06:32,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 11:06:32,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 11:06:32,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 11:06:32,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 11:06:32,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 11:06:32,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 11:06:32,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-09-16 11:06:32,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-09-16 11:06:32,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:06:32,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:06:32,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:06:32,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 11:06:32,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:06:32,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:06:32,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:06:32,254 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:06:32,364 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:06:32,366 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:06:32,804 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:06:33,176 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:06:33,176 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-09-16 11:06:33,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:06:33 BoogieIcfgContainer [2022-09-16 11:06:33,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:06:33,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:06:33,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:06:33,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:06:33,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:06:31" (1/3) ... [2022-09-16 11:06:33,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e80292b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:06:33, skipping insertion in model container [2022-09-16 11:06:33,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:06:32" (2/3) ... [2022-09-16 11:06:33,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e80292b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:06:33, skipping insertion in model container [2022-09-16 11:06:33,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:06:33" (3/3) ... [2022-09-16 11:06:33,210 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult.wvr.c [2022-09-16 11:06:33,217 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 11:06:33,224 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:06:33,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-09-16 11:06:33,224 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:06:33,385 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-09-16 11:06:33,426 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 259 places, 264 transitions, 560 flow [2022-09-16 11:06:38,952 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 177267 states, 174429 states have (on average 4.979172041346335) internal successors, (868512), 177266 states have internal predecessors, (868512), 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 11:06:38,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:06:38,978 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;@526452db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:06:38,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-09-16 11:06:39,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 177267 states, 174429 states have (on average 4.979172041346335) internal successors, (868512), 177266 states have internal predecessors, (868512), 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 11:06:39,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 11:06:39,410 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:39,410 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] [2022-09-16 11:06:39,411 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 11:06:39,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:39,418 INFO L85 PathProgramCache]: Analyzing trace with hash -887821009, now seen corresponding path program 1 times [2022-09-16 11:06:39,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:39,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738449739] [2022-09-16 11:06:39,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:39,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:40,333 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 11:06:40,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:40,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738449739] [2022-09-16 11:06:40,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738449739] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:06:40,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:06:40,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:06:40,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592915378] [2022-09-16 11:06:40,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:06:40,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:06:40,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:40,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:06:40,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:06:40,729 INFO L87 Difference]: Start difference. First operand has 177267 states, 174429 states have (on average 4.979172041346335) internal successors, (868512), 177266 states have internal predecessors, (868512), 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 25.333333333333332) internal successors, (76), 4 states have internal predecessors, (76), 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 11:06:44,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:44,832 INFO L93 Difference]: Finished difference Result 198643 states and 914201 transitions. [2022-09-16 11:06:44,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:06:44,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 4 states have internal predecessors, (76), 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 76 [2022-09-16 11:06:44,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:47,324 INFO L225 Difference]: With dead ends: 198643 [2022-09-16 11:06:47,324 INFO L226 Difference]: Without dead ends: 198637 [2022-09-16 11:06:47,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:06:47,329 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 118 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 511 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 11:06:47,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 511 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:06:47,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198637 states. [2022-09-16 11:06:53,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198637 to 99378. [2022-09-16 11:06:54,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99378 states, 98511 states have (on average 4.640689872197013) internal successors, (457159), 99377 states have internal predecessors, (457159), 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 11:06:55,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99378 states to 99378 states and 457159 transitions. [2022-09-16 11:06:55,151 INFO L78 Accepts]: Start accepts. Automaton has 99378 states and 457159 transitions. Word has length 76 [2022-09-16 11:06:55,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:55,153 INFO L495 AbstractCegarLoop]: Abstraction has 99378 states and 457159 transitions. [2022-09-16 11:06:55,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 4 states have internal predecessors, (76), 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 11:06:55,154 INFO L276 IsEmpty]: Start isEmpty. Operand 99378 states and 457159 transitions. [2022-09-16 11:06:55,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-09-16 11:06:55,158 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:55,158 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] [2022-09-16 11:06:55,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:06:55,160 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 11:06:55,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:55,161 INFO L85 PathProgramCache]: Analyzing trace with hash 200529100, now seen corresponding path program 1 times [2022-09-16 11:06:55,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:55,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624102447] [2022-09-16 11:06:55,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:55,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:55,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:55,300 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:06:55,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:55,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624102447] [2022-09-16 11:06:55,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624102447] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:06:55,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916602306] [2022-09-16 11:06:55,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:55,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:55,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:06:55,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:06:55,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 11:06:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:55,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:06:55,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:06:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:06:55,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:06:55,661 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:06:55,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916602306] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:06:55,661 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:06:55,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 11:06:55,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114160683] [2022-09-16 11:06:55,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:06:55,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 11:06:55,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:55,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 11:06:55,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 11:06:55,664 INFO L87 Difference]: Start difference. First operand 99378 states and 457159 transitions. Second operand has 12 states, 11 states have (on average 10.0) internal successors, (110), 12 states have internal predecessors, (110), 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 11:07:04,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:07:04,129 INFO L93 Difference]: Finished difference Result 496460 states and 2285355 transitions. [2022-09-16 11:07:04,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:07:04,129 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.0) internal successors, (110), 12 states have internal predecessors, (110), 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 85 [2022-09-16 11:07:04,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:07:11,443 INFO L225 Difference]: With dead ends: 496460 [2022-09-16 11:07:11,443 INFO L226 Difference]: Without dead ends: 496460 [2022-09-16 11:07:11,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2022-09-16 11:07:11,444 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 835 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 11:07:11,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 1040 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 11:07:12,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496460 states. [2022-09-16 11:07:24,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496460 to 99430. [2022-09-16 11:07:24,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99430 states, 98563 states have (on average 4.638870570092226) internal successors, (457221), 99429 states have internal predecessors, (457221), 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 11:07:25,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99430 states to 99430 states and 457221 transitions. [2022-09-16 11:07:25,915 INFO L78 Accepts]: Start accepts. Automaton has 99430 states and 457221 transitions. Word has length 85 [2022-09-16 11:07:25,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:07:25,915 INFO L495 AbstractCegarLoop]: Abstraction has 99430 states and 457221 transitions. [2022-09-16 11:07:25,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.0) internal successors, (110), 12 states have internal predecessors, (110), 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 11:07:25,916 INFO L276 IsEmpty]: Start isEmpty. Operand 99430 states and 457221 transitions. [2022-09-16 11:07:25,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-09-16 11:07:25,917 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:07:25,917 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] [2022-09-16 11:07:25,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 11:07:26,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:07:26,118 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 11:07:26,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:07:26,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1921435688, now seen corresponding path program 1 times [2022-09-16 11:07:26,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:07:26,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496508105] [2022-09-16 11:07:26,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:07:26,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:07:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:07:26,244 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 11:07:26,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:07:26,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496508105] [2022-09-16 11:07:26,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496508105] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:07:26,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752508643] [2022-09-16 11:07:26,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:07:26,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:07:26,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:07:26,249 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:07:26,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 11:07:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:07:26,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:07:26,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:07:26,468 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 11:07:26,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:07:26,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752508643] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:07:26,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:07:26,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 11:07:26,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277514836] [2022-09-16 11:07:26,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:07:26,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:07:26,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:07:26,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:07:26,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:07:26,471 INFO L87 Difference]: Start difference. First operand 99430 states and 457221 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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 11:07:30,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:07:30,788 INFO L93 Difference]: Finished difference Result 198683 states and 914247 transitions. [2022-09-16 11:07:30,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:07:30,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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 86 [2022-09-16 11:07:30,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:07:33,921 INFO L225 Difference]: With dead ends: 198683 [2022-09-16 11:07:33,922 INFO L226 Difference]: Without dead ends: 198683 [2022-09-16 11:07:33,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:07:33,924 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 240 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:07:33,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 867 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:07:34,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198683 states. [2022-09-16 11:07:39,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198683 to 99428. [2022-09-16 11:07:39,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99428 states, 98563 states have (on average 4.638809695321774) internal successors, (457215), 99427 states have internal predecessors, (457215), 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 11:07:40,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99428 states to 99428 states and 457215 transitions. [2022-09-16 11:07:40,711 INFO L78 Accepts]: Start accepts. Automaton has 99428 states and 457215 transitions. Word has length 86 [2022-09-16 11:07:40,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:07:40,711 INFO L495 AbstractCegarLoop]: Abstraction has 99428 states and 457215 transitions. [2022-09-16 11:07:40,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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 11:07:40,711 INFO L276 IsEmpty]: Start isEmpty. Operand 99428 states and 457215 transitions. [2022-09-16 11:07:40,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-09-16 11:07:40,714 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:07:40,714 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] [2022-09-16 11:07:40,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 11:07:40,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-09-16 11:07:40,920 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 11:07:40,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:07:40,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1379829359, now seen corresponding path program 2 times [2022-09-16 11:07:40,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:07:40,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172830337] [2022-09-16 11:07:40,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:07:40,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:07:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:07:41,064 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 11:07:41,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:07:41,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172830337] [2022-09-16 11:07:41,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172830337] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:07:41,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327660020] [2022-09-16 11:07:41,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 11:07:41,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:07:41,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:07:41,066 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:07:41,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 11:07:41,217 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 11:07:41,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:07:41,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 11:07:41,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:07:41,383 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 11:07:41,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:07:41,516 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 11:07:41,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327660020] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:07:41,517 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:07:41,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-09-16 11:07:41,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648683022] [2022-09-16 11:07:41,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:07:41,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:07:41,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:07:41,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:07:41,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:07:41,520 INFO L87 Difference]: Start difference. First operand 99428 states and 457215 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 11:07:51,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:07:51,123 INFO L93 Difference]: Finished difference Result 582766 states and 2679357 transitions. [2022-09-16 11:07:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-09-16 11:07:51,127 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 112 [2022-09-16 11:07:51,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:08:03,037 INFO L225 Difference]: With dead ends: 582766 [2022-09-16 11:08:03,038 INFO L226 Difference]: Without dead ends: 582766 [2022-09-16 11:08:03,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 213 SyntacticMatches, 5 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=991, Invalid=3041, Unknown=0, NotChecked=0, Total=4032 [2022-09-16 11:08:03,045 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 2870 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 11:08:03,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 1668 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 11:08:04,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582766 states. [2022-09-16 11:08:18,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582766 to 83380. [2022-09-16 11:08:18,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83380 states, 82840 states have (on average 4.6221511347175275) internal successors, (382899), 83379 states have internal predecessors, (382899), 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 11:08:20,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83380 states to 83380 states and 382899 transitions. [2022-09-16 11:08:20,165 INFO L78 Accepts]: Start accepts. Automaton has 83380 states and 382899 transitions. Word has length 112 [2022-09-16 11:08:20,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:08:20,167 INFO L495 AbstractCegarLoop]: Abstraction has 83380 states and 382899 transitions. [2022-09-16 11:08:20,167 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 11:08:20,167 INFO L276 IsEmpty]: Start isEmpty. Operand 83380 states and 382899 transitions. [2022-09-16 11:08:20,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-09-16 11:08:20,169 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:08:20,169 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] [2022-09-16 11:08:20,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 11:08:20,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:08:20,384 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:08:20,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:08:20,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1116005036, now seen corresponding path program 1 times [2022-09-16 11:08:20,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:08:20,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800727596] [2022-09-16 11:08:20,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:08:20,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:08:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:08:20,460 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 11:08:20,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:08:20,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800727596] [2022-09-16 11:08:20,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800727596] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:08:20,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:08:20,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:08:20,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508465354] [2022-09-16 11:08:20,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:08:20,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:08:20,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:08:20,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:08:20,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:08:20,463 INFO L87 Difference]: Start difference. First operand 83380 states and 382899 transitions. Second operand has 3 states, 2 states have (on average 58.5) internal successors, (117), 3 states have internal predecessors, (117), 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 11:08:22,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:08:22,432 INFO L93 Difference]: Finished difference Result 135355 states and 620481 transitions. [2022-09-16 11:08:22,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:08:22,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 58.5) internal successors, (117), 3 states have internal predecessors, (117), 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 117 [2022-09-16 11:08:22,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:08:24,211 INFO L225 Difference]: With dead ends: 135355 [2022-09-16 11:08:24,211 INFO L226 Difference]: Without dead ends: 135355 [2022-09-16 11:08:24,211 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 11:08:24,212 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 88 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 234 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 11:08:24,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 234 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:08:24,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135355 states. [2022-09-16 11:08:29,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135355 to 106798. [2022-09-16 11:08:30,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106798 states, 106258 states have (on average 4.700286096105705) internal successors, (499443), 106797 states have internal predecessors, (499443), 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 11:08:31,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106798 states to 106798 states and 499443 transitions. [2022-09-16 11:08:31,241 INFO L78 Accepts]: Start accepts. Automaton has 106798 states and 499443 transitions. Word has length 117 [2022-09-16 11:08:31,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:08:31,242 INFO L495 AbstractCegarLoop]: Abstraction has 106798 states and 499443 transitions. [2022-09-16 11:08:31,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 58.5) internal successors, (117), 3 states have internal predecessors, (117), 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 11:08:31,242 INFO L276 IsEmpty]: Start isEmpty. Operand 106798 states and 499443 transitions. [2022-09-16 11:08:31,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-09-16 11:08:31,243 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:08:31,243 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] [2022-09-16 11:08:31,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:08:31,243 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:08:31,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:08:31,244 INFO L85 PathProgramCache]: Analyzing trace with hash 660288943, now seen corresponding path program 1 times [2022-09-16 11:08:31,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:08:31,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387772053] [2022-09-16 11:08:31,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:08:31,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:08:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:08:31,337 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 11:08:31,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:08:31,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387772053] [2022-09-16 11:08:31,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387772053] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:08:31,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798363393] [2022-09-16 11:08:31,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:08:31,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:08:31,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:08:31,340 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:08:31,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 11:08:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:08:31,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:08:31,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:08:31,578 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:08:31,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:08:31,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798363393] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:08:31,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:08:31,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3] total 8 [2022-09-16 11:08:31,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401849267] [2022-09-16 11:08:31,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:08:31,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:08:31,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:08:31,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:08:31,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:08:31,580 INFO L87 Difference]: Start difference. First operand 106798 states and 499443 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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 11:08:33,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:08:33,588 INFO L93 Difference]: Finished difference Result 135303 states and 619951 transitions. [2022-09-16 11:08:33,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:08:33,588 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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 121 [2022-09-16 11:08:33,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:08:35,159 INFO L225 Difference]: With dead ends: 135303 [2022-09-16 11:08:35,159 INFO L226 Difference]: Without dead ends: 134223 [2022-09-16 11:08:35,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-09-16 11:08:35,160 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 176 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:08:35,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 746 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:08:35,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134223 states. [2022-09-16 11:08:39,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134223 to 126790. [2022-09-16 11:08:39,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126790 states, 126145 states have (on average 4.647984462325102) internal successors, (586320), 126789 states have internal predecessors, (586320), 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 11:08:41,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126790 states to 126790 states and 586320 transitions. [2022-09-16 11:08:41,429 INFO L78 Accepts]: Start accepts. Automaton has 126790 states and 586320 transitions. Word has length 121 [2022-09-16 11:08:41,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:08:41,429 INFO L495 AbstractCegarLoop]: Abstraction has 126790 states and 586320 transitions. [2022-09-16 11:08:41,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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 11:08:41,430 INFO L276 IsEmpty]: Start isEmpty. Operand 126790 states and 586320 transitions. [2022-09-16 11:08:41,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-09-16 11:08:41,431 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:08:41,431 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] [2022-09-16 11:08:41,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-09-16 11:08:41,635 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 11:08:41,635 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:08:41,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:08:41,636 INFO L85 PathProgramCache]: Analyzing trace with hash -640322797, now seen corresponding path program 1 times [2022-09-16 11:08:41,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:08:41,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379986866] [2022-09-16 11:08:41,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:08:41,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:08:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:08:41,756 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 11:08:41,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:08:41,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379986866] [2022-09-16 11:08:41,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379986866] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:08:41,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:08:41,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:08:41,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763654213] [2022-09-16 11:08:41,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:08:41,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:08:41,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:08:41,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:08:41,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:08:41,760 INFO L87 Difference]: Start difference. First operand 126790 states and 586320 transitions. Second operand has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 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 11:08:43,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:08:43,397 INFO L93 Difference]: Finished difference Result 116992 states and 540852 transitions. [2022-09-16 11:08:43,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:08:43,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 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 122 [2022-09-16 11:08:43,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:08:45,172 INFO L225 Difference]: With dead ends: 116992 [2022-09-16 11:08:45,172 INFO L226 Difference]: Without dead ends: 116992 [2022-09-16 11:08:45,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-09-16 11:08:45,173 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 320 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:08:45,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 499 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:08:45,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116992 states. [2022-09-16 11:08:50,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116992 to 116992. [2022-09-16 11:08:50,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116992 states, 116455 states have (on average 4.644300373534842) internal successors, (540852), 116991 states have internal predecessors, (540852), 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 11:08:52,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116992 states to 116992 states and 540852 transitions. [2022-09-16 11:08:52,208 INFO L78 Accepts]: Start accepts. Automaton has 116992 states and 540852 transitions. Word has length 122 [2022-09-16 11:08:52,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:08:52,209 INFO L495 AbstractCegarLoop]: Abstraction has 116992 states and 540852 transitions. [2022-09-16 11:08:52,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 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 11:08:52,209 INFO L276 IsEmpty]: Start isEmpty. Operand 116992 states and 540852 transitions. [2022-09-16 11:08:52,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-09-16 11:08:52,210 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:08:52,211 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] [2022-09-16 11:08:52,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:08:52,211 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:08:52,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:08:52,212 INFO L85 PathProgramCache]: Analyzing trace with hash -640322796, now seen corresponding path program 1 times [2022-09-16 11:08:52,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:08:52,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755314396] [2022-09-16 11:08:52,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:08:52,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:08:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:08:52,265 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 11:08:52,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:08:52,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755314396] [2022-09-16 11:08:52,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755314396] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:08:52,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:08:52,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:08:52,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692506194] [2022-09-16 11:08:52,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:08:52,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:08:52,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:08:52,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:08:52,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:08:52,267 INFO L87 Difference]: Start difference. First operand 116992 states and 540852 transitions. Second operand has 4 states, 3 states have (on average 40.666666666666664) internal successors, (122), 4 states have internal predecessors, (122), 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 11:08:54,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:08:54,052 INFO L93 Difference]: Finished difference Result 107194 states and 495384 transitions. [2022-09-16 11:08:54,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:08:54,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 40.666666666666664) internal successors, (122), 4 states have internal predecessors, (122), 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 122 [2022-09-16 11:08:54,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:08:54,817 INFO L225 Difference]: With dead ends: 107194 [2022-09-16 11:08:54,817 INFO L226 Difference]: Without dead ends: 107194 [2022-09-16 11:08:54,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:08:54,818 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 95 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:08:54,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 370 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:08:55,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107194 states. [2022-09-16 11:08:58,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107194 to 107194. [2022-09-16 11:08:58,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107194 states, 106765 states have (on average 4.639947548353861) internal successors, (495384), 107193 states have internal predecessors, (495384), 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 11:08:59,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107194 states to 107194 states and 495384 transitions. [2022-09-16 11:08:59,838 INFO L78 Accepts]: Start accepts. Automaton has 107194 states and 495384 transitions. Word has length 122 [2022-09-16 11:08:59,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:08:59,839 INFO L495 AbstractCegarLoop]: Abstraction has 107194 states and 495384 transitions. [2022-09-16 11:08:59,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 40.666666666666664) internal successors, (122), 4 states have internal predecessors, (122), 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 11:08:59,839 INFO L276 IsEmpty]: Start isEmpty. Operand 107194 states and 495384 transitions. [2022-09-16 11:08:59,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-09-16 11:08:59,840 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:08:59,840 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] [2022-09-16 11:08:59,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 11:08:59,840 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:08:59,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:08:59,841 INFO L85 PathProgramCache]: Analyzing trace with hash -640322795, now seen corresponding path program 1 times [2022-09-16 11:08:59,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:08:59,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242296800] [2022-09-16 11:08:59,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:08:59,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:08:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:08:59,901 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 11:08:59,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:08:59,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242296800] [2022-09-16 11:08:59,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242296800] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:08:59,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:08:59,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:08:59,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559431610] [2022-09-16 11:08:59,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:08:59,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:08:59,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:08:59,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:08:59,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:08:59,904 INFO L87 Difference]: Start difference. First operand 107194 states and 495384 transitions. Second operand has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 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 11:09:01,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:09:01,999 INFO L93 Difference]: Finished difference Result 138883 states and 629475 transitions. [2022-09-16 11:09:01,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:09:02,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 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 122 [2022-09-16 11:09:02,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:09:03,725 INFO L225 Difference]: With dead ends: 138883 [2022-09-16 11:09:03,725 INFO L226 Difference]: Without dead ends: 132883 [2022-09-16 11:09:03,725 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 11:09:03,741 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 462 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:09:03,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 632 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:09:04,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132883 states. [2022-09-16 11:09:09,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132883 to 127771. [2022-09-16 11:09:09,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127771 states, 127300 states have (on average 4.593527101335428) internal successors, (584756), 127770 states have internal predecessors, (584756), 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 11:09:11,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127771 states to 127771 states and 584756 transitions. [2022-09-16 11:09:11,223 INFO L78 Accepts]: Start accepts. Automaton has 127771 states and 584756 transitions. Word has length 122 [2022-09-16 11:09:11,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:09:11,224 INFO L495 AbstractCegarLoop]: Abstraction has 127771 states and 584756 transitions. [2022-09-16 11:09:11,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 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 11:09:11,224 INFO L276 IsEmpty]: Start isEmpty. Operand 127771 states and 584756 transitions. [2022-09-16 11:09:11,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-09-16 11:09:11,226 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:09:11,226 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] [2022-09-16 11:09:11,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 11:09:11,226 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:09:11,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:09:11,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1448708402, now seen corresponding path program 1 times [2022-09-16 11:09:11,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:09:11,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738828686] [2022-09-16 11:09:11,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:09:11,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:09:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:09:11,290 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:09:11,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:09:11,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738828686] [2022-09-16 11:09:11,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738828686] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:09:11,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294363419] [2022-09-16 11:09:11,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:09:11,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:09:11,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:09:11,292 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:09:11,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 11:09:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:09:11,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 9 conjunts are in the unsatisfiable core [2022-09-16 11:09:11,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:09:12,094 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:09:12,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:09:12,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:09:12,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294363419] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:09:12,322 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:09:12,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 9, 9] total 17 [2022-09-16 11:09:12,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481402571] [2022-09-16 11:09:12,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:09:12,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-16 11:09:12,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:09:12,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-16 11:09:12,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2022-09-16 11:09:12,324 INFO L87 Difference]: Start difference. First operand 127771 states and 584756 transitions. Second operand has 17 states, 17 states have (on average 16.529411764705884) internal successors, (281), 17 states have internal predecessors, (281), 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 11:09:18,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:09:18,326 INFO L93 Difference]: Finished difference Result 361341 states and 1639949 transitions. [2022-09-16 11:09:18,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 11:09:18,327 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 16.529411764705884) internal successors, (281), 17 states have internal predecessors, (281), 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 130 [2022-09-16 11:09:18,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:09:22,182 INFO L225 Difference]: With dead ends: 361341 [2022-09-16 11:09:22,182 INFO L226 Difference]: Without dead ends: 355941 [2022-09-16 11:09:22,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 246 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=818, Unknown=0, NotChecked=0, Total=1122 [2022-09-16 11:09:22,183 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 2135 mSDsluCounter, 1799 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 11:09:22,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2135 Valid, 1731 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 11:09:23,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355941 states. [2022-09-16 11:09:35,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355941 to 205416. [2022-09-16 11:09:35,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205416 states, 204837 states have (on average 4.738562857296289) internal successors, (970633), 205415 states have internal predecessors, (970633), 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 11:09:39,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205416 states to 205416 states and 970633 transitions. [2022-09-16 11:09:39,199 INFO L78 Accepts]: Start accepts. Automaton has 205416 states and 970633 transitions. Word has length 130 [2022-09-16 11:09:39,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:09:39,199 INFO L495 AbstractCegarLoop]: Abstraction has 205416 states and 970633 transitions. [2022-09-16 11:09:39,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 16.529411764705884) internal successors, (281), 17 states have internal predecessors, (281), 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 11:09:39,200 INFO L276 IsEmpty]: Start isEmpty. Operand 205416 states and 970633 transitions. [2022-09-16 11:09:39,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-09-16 11:09:39,202 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:09:39,202 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 11:09:39,227 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-09-16 11:09:39,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-09-16 11:09:39,420 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:09:39,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:09:39,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1974350847, now seen corresponding path program 1 times [2022-09-16 11:09:39,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:09:39,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729585424] [2022-09-16 11:09:39,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:09:39,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:09:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:09:39,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:09:39,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:09:39,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729585424] [2022-09-16 11:09:39,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729585424] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:09:39,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736325738] [2022-09-16 11:09:39,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:09:39,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:09:39,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:09:39,612 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:09:39,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 11:09:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:09:40,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:09:40,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:09:40,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:09:40,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:09:40,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736325738] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:09:40,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:09:40,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-09-16 11:09:40,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990451913] [2022-09-16 11:09:40,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:09:40,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:09:40,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:09:40,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:09:40,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-09-16 11:09:40,445 INFO L87 Difference]: Start difference. First operand 205416 states and 970633 transitions. Second operand has 4 states, 3 states have (on average 43.666666666666664) internal successors, (131), 4 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 11:09:44,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:09:44,160 INFO L93 Difference]: Finished difference Result 178229 states and 839301 transitions. [2022-09-16 11:09:44,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:09:44,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 43.666666666666664) internal successors, (131), 4 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 11:09:44,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:09:46,774 INFO L225 Difference]: With dead ends: 178229 [2022-09-16 11:09:46,775 INFO L226 Difference]: Without dead ends: 178229 [2022-09-16 11:09:46,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:09:46,775 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 95 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:09:46,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 368 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:09:47,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178229 states. [2022-09-16 11:09:56,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178229 to 178229. [2022-09-16 11:09:56,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178229 states, 177848 states have (on average 4.719204039404436) internal successors, (839301), 178228 states have internal predecessors, (839301), 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 11:09:59,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178229 states to 178229 states and 839301 transitions. [2022-09-16 11:09:59,516 INFO L78 Accepts]: Start accepts. Automaton has 178229 states and 839301 transitions. Word has length 131 [2022-09-16 11:09:59,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:09:59,516 INFO L495 AbstractCegarLoop]: Abstraction has 178229 states and 839301 transitions. [2022-09-16 11:09:59,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 43.666666666666664) internal successors, (131), 4 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 11:09:59,516 INFO L276 IsEmpty]: Start isEmpty. Operand 178229 states and 839301 transitions. [2022-09-16 11:09:59,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-09-16 11:09:59,518 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:09:59,518 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] [2022-09-16 11:09:59,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-09-16 11:09:59,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:09:59,732 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:09:59,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:09:59,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1075332960, now seen corresponding path program 1 times [2022-09-16 11:09:59,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:09:59,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341136652] [2022-09-16 11:09:59,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:09:59,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:09:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:09:59,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:09:59,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:09:59,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341136652] [2022-09-16 11:09:59,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341136652] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:09:59,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:09:59,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:09:59,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110359694] [2022-09-16 11:09:59,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:09:59,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:09:59,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:09:59,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:09:59,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:09:59,802 INFO L87 Difference]: Start difference. First operand 178229 states and 839301 transitions. Second operand has 3 states, 2 states have (on average 66.0) internal successors, (132), 3 states have internal predecessors, (132), 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 11:10:04,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:10:04,559 INFO L93 Difference]: Finished difference Result 263615 states and 1247070 transitions. [2022-09-16 11:10:04,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:10:04,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 66.0) internal successors, (132), 3 states have internal predecessors, (132), 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 132 [2022-09-16 11:10:04,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:10:09,517 INFO L225 Difference]: With dead ends: 263615 [2022-09-16 11:10:09,517 INFO L226 Difference]: Without dead ends: 263615 [2022-09-16 11:10:09,518 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 11:10:09,519 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 69 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:10:09,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 230 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:10:10,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263615 states. [2022-09-16 11:10:19,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263615 to 221705. [2022-09-16 11:10:20,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221705 states, 221324 states have (on average 4.794635918382101) internal successors, (1061168), 221704 states have internal predecessors, (1061168), 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 11:10:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221705 states to 221705 states and 1061168 transitions. [2022-09-16 11:10:23,353 INFO L78 Accepts]: Start accepts. Automaton has 221705 states and 1061168 transitions. Word has length 132 [2022-09-16 11:10:23,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:10:23,353 INFO L495 AbstractCegarLoop]: Abstraction has 221705 states and 1061168 transitions. [2022-09-16 11:10:23,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 66.0) internal successors, (132), 3 states have internal predecessors, (132), 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 11:10:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 221705 states and 1061168 transitions. [2022-09-16 11:10:23,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-09-16 11:10:23,357 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:10:23,357 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, 1] [2022-09-16 11:10:23,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-16 11:10:23,358 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:10:23,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:10:23,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1606922439, now seen corresponding path program 1 times [2022-09-16 11:10:23,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:10:23,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126999696] [2022-09-16 11:10:23,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:10:23,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:10:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:10:23,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:10:23,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:10:23,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126999696] [2022-09-16 11:10:23,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126999696] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:10:23,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480723177] [2022-09-16 11:10:23,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:10:23,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:10:23,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:10:23,414 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:10:23,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 11:10:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:10:23,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 9 conjunts are in the unsatisfiable core [2022-09-16 11:10:23,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:10:23,694 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:10:23,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:10:23,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:10:23,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480723177] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:10:23,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:10:23,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 9, 9] total 17 [2022-09-16 11:10:23,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019712552] [2022-09-16 11:10:23,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:10:23,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-16 11:10:23,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:10:23,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-16 11:10:23,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2022-09-16 11:10:23,886 INFO L87 Difference]: Start difference. First operand 221705 states and 1061168 transitions. Second operand has 17 states, 17 states have (on average 17.176470588235293) internal successors, (292), 17 states have internal predecessors, (292), 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 11:10:37,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:10:37,442 INFO L93 Difference]: Finished difference Result 590070 states and 2821005 transitions. [2022-09-16 11:10:37,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:10:37,442 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 17.176470588235293) internal successors, (292), 17 states have internal predecessors, (292), 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 11:10:37,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:10:45,859 INFO L225 Difference]: With dead ends: 590070 [2022-09-16 11:10:45,860 INFO L226 Difference]: Without dead ends: 583410 [2022-09-16 11:10:45,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 257 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=283, Invalid=709, Unknown=0, NotChecked=0, Total=992 [2022-09-16 11:10:45,861 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 2114 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2114 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 11:10:45,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2114 Valid, 1928 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 11:10:47,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583410 states. [2022-09-16 11:11:15,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583410 to 361912. [2022-09-16 11:11:17,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361912 states, 361443 states have (on average 4.932144210843757) internal successors, (1782689), 361911 states have internal predecessors, (1782689), 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 11:11:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361912 states to 361912 states and 1782689 transitions. [2022-09-16 11:11:23,353 INFO L78 Accepts]: Start accepts. Automaton has 361912 states and 1782689 transitions. Word has length 136 [2022-09-16 11:11:23,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:11:23,353 INFO L495 AbstractCegarLoop]: Abstraction has 361912 states and 1782689 transitions. [2022-09-16 11:11:23,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 17.176470588235293) internal successors, (292), 17 states have internal predecessors, (292), 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 11:11:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 361912 states and 1782689 transitions. [2022-09-16 11:11:23,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-09-16 11:11:23,375 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:11:23,375 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] [2022-09-16 11:11:23,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-09-16 11:11:23,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:11:23,601 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:11:23,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:11:23,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1399702259, now seen corresponding path program 1 times [2022-09-16 11:11:23,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:11:23,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59128097] [2022-09-16 11:11:23,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:11:23,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:11:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat