/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 18:24:31,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 18:24:31,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 18:24:31,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 18:24:31,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 18:24:31,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 18:24:31,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 18:24:31,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 18:24:31,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 18:24:31,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 18:24:31,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 18:24:31,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 18:24:31,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 18:24:31,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 18:24:31,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 18:24:31,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 18:24:31,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 18:24:31,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 18:24:31,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 18:24:31,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 18:24:31,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 18:24:31,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 18:24:31,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 18:24:31,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 18:24:31,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 18:24:31,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 18:24:31,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 18:24:31,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 18:24:31,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 18:24:31,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 18:24:31,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 18:24:31,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 18:24:31,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 18:24:31,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 18:24:31,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 18:24:31,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 18:24:31,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 18:24:31,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 18:24:31,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 18:24:31,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 18:24:31,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 18:24:31,566 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 18:24:31,587 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 18:24:31,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 18:24:31,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 18:24:31,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 18:24:31,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 18:24:31,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 18:24:31,589 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 18:24:31,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 18:24:31,590 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 18:24:31,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 18:24:31,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 18:24:31,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 18:24:31,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 18:24:31,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 18:24:31,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 18:24:31,591 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 18:24:31,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 18:24:31,598 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 18:24:31,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 18:24:31,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 18:24:31,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 18:24:31,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 18:24:31,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 18:24:31,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:24:31,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 18:24:31,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 18:24:31,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 18:24:31,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 18:24:31,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 18:24:31,602 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 18:24:31,602 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 18:24:31,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 18:24:31,603 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 18:24:31,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 18:24:31,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 18:24:31,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 18:24:31,814 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 18:24:31,817 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 18:24:31,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2022-03-15 18:24:31,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a3f1ee0/83df3d0a057844b3bd4fcbd897e60c06/FLAG9af6f5d8a [2022-03-15 18:24:32,283 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 18:24:32,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2022-03-15 18:24:32,289 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a3f1ee0/83df3d0a057844b3bd4fcbd897e60c06/FLAG9af6f5d8a [2022-03-15 18:24:32,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a3f1ee0/83df3d0a057844b3bd4fcbd897e60c06 [2022-03-15 18:24:32,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 18:24:32,307 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 18:24:32,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 18:24:32,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 18:24:32,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 18:24:32,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:24:32" (1/1) ... [2022-03-15 18:24:32,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e1b2555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:24:32, skipping insertion in model container [2022-03-15 18:24:32,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:24:32" (1/1) ... [2022-03-15 18:24:32,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 18:24:32,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 18:24:32,547 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/bench-exp3x3-opt.wvr.c[2826,2839] [2022-03-15 18:24:32,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:24:32,555 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 18:24:32,601 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/bench-exp3x3-opt.wvr.c[2826,2839] [2022-03-15 18:24:32,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:24:32,613 INFO L208 MainTranslator]: Completed translation [2022-03-15 18:24:32,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:24:32 WrapperNode [2022-03-15 18:24:32,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 18:24:32,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 18:24:32,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 18:24:32,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 18:24:32,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:24:32" (1/1) ... [2022-03-15 18:24:32,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:24:32" (1/1) ... [2022-03-15 18:24:32,651 INFO L137 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 125 [2022-03-15 18:24:32,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 18:24:32,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 18:24:32,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 18:24:32,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 18:24:32,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:24:32" (1/1) ... [2022-03-15 18:24:32,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:24:32" (1/1) ... [2022-03-15 18:24:32,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:24:32" (1/1) ... [2022-03-15 18:24:32,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:24:32" (1/1) ... [2022-03-15 18:24:32,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:24:32" (1/1) ... [2022-03-15 18:24:32,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:24:32" (1/1) ... [2022-03-15 18:24:32,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:24:32" (1/1) ... [2022-03-15 18:24:32,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 18:24:32,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 18:24:32,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 18:24:32,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 18:24:32,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:24:32" (1/1) ... [2022-03-15 18:24:32,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:24:32,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:24:32,710 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) [2022-03-15 18:24:32,716 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 [2022-03-15 18:24:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 18:24:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 18:24:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 18:24:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 18:24:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 18:24:32,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 18:24:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 18:24:32,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 18:24:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 18:24:32,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 18:24:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 18:24:32,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 18:24:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 18:24:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-03-15 18:24:32,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-03-15 18:24:32,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-03-15 18:24:32,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-03-15 18:24:32,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 18:24:32,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 18:24:32,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 18:24:32,748 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 18:24:32,820 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 18:24:32,821 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 18:24:33,004 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 18:24:33,011 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 18:24:33,011 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-03-15 18:24:33,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:24:33 BoogieIcfgContainer [2022-03-15 18:24:33,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 18:24:33,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 18:24:33,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 18:24:33,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 18:24:33,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 06:24:32" (1/3) ... [2022-03-15 18:24:33,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605da793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:24:33, skipping insertion in model container [2022-03-15 18:24:33,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:24:32" (2/3) ... [2022-03-15 18:24:33,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605da793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:24:33, skipping insertion in model container [2022-03-15 18:24:33,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:24:33" (3/3) ... [2022-03-15 18:24:33,019 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2022-03-15 18:24:33,023 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 18:24:33,023 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 18:24:33,023 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 18:24:33,023 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 18:24:33,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,091 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,091 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,093 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,094 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,094 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,094 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,096 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,096 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,096 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,096 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,098 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,098 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,098 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,099 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,100 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,100 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,101 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,101 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,104 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,104 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,106 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,107 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,108 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,108 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,109 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,110 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,111 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,111 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,112 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,112 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:24:33,122 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-03-15 18:24:33,157 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 18:24:33,163 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 18:24:33,163 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-03-15 18:24:33,176 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 18:24:33,182 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 169 transitions, 386 flow [2022-03-15 18:24:33,185 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 169 transitions, 386 flow [2022-03-15 18:24:33,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 174 places, 169 transitions, 386 flow [2022-03-15 18:24:33,256 INFO L129 PetriNetUnfolder]: 14/163 cut-off events. [2022-03-15 18:24:33,256 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-03-15 18:24:33,262 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 163 events. 14/163 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2022-03-15 18:24:33,266 INFO L116 LiptonReduction]: Number of co-enabled transitions 2916 [2022-03-15 18:24:38,675 INFO L131 LiptonReduction]: Checked pairs total: 3671 [2022-03-15 18:24:38,675 INFO L133 LiptonReduction]: Total number of compositions: 136 [2022-03-15 18:24:38,682 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 44 transitions, 136 flow [2022-03-15 18:24:38,747 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 380 states, 379 states have (on average 5.58311345646438) internal successors, (2116), 379 states have internal predecessors, (2116), 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) [2022-03-15 18:24:38,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 380 states, 379 states have (on average 5.58311345646438) internal successors, (2116), 379 states have internal predecessors, (2116), 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) [2022-03-15 18:24:38,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-15 18:24:38,766 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:24:38,766 INFO L514 BasicCegarLoop]: 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] [2022-03-15 18:24:38,767 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-15 18:24:38,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:24:38,771 INFO L85 PathProgramCache]: Analyzing trace with hash -270910182, now seen corresponding path program 1 times [2022-03-15 18:24:38,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:24:38,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570745484] [2022-03-15 18:24:38,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:24:38,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:24:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:24:39,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:24:39,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:24:39,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570745484] [2022-03-15 18:24:39,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570745484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:24:39,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:24:39,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 18:24:39,268 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [804061675] [2022-03-15 18:24:39,269 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:24:39,278 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:24:39,457 INFO L252 McrAutomatonBuilder]: Finished intersection with 380 states and 1216 transitions. [2022-03-15 18:24:39,457 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:24:46,954 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:24:46,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 18:24:46,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:24:46,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 18:24:46,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:24:46,978 INFO L87 Difference]: Start difference. First operand has 380 states, 379 states have (on average 5.58311345646438) internal successors, (2116), 379 states have internal predecessors, (2116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2022-03-15 18:24:47,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:24:47,106 INFO L93 Difference]: Finished difference Result 697 states and 3973 transitions. [2022-03-15 18:24:47,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:24:47,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2022-03-15 18:24:47,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:24:47,125 INFO L225 Difference]: With dead ends: 697 [2022-03-15 18:24:47,125 INFO L226 Difference]: Without dead ends: 632 [2022-03-15 18:24:47,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 0 SyntacticMatches, 348 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:24:47,128 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:24:47,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:24:47,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-03-15 18:24:47,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 632. [2022-03-15 18:24:47,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 631 states have (on average 5.708399366085579) internal successors, (3602), 631 states have internal predecessors, (3602), 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) [2022-03-15 18:24:47,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 3602 transitions. [2022-03-15 18:24:47,206 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 3602 transitions. Word has length 31 [2022-03-15 18:24:47,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:24:47,206 INFO L470 AbstractCegarLoop]: Abstraction has 632 states and 3602 transitions. [2022-03-15 18:24:47,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2022-03-15 18:24:47,207 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 3602 transitions. [2022-03-15 18:24:47,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 18:24:47,211 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:24:47,211 INFO L514 BasicCegarLoop]: 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] [2022-03-15 18:24:47,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 18:24:47,212 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-15 18:24:47,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:24:47,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1158879055, now seen corresponding path program 1 times [2022-03-15 18:24:47,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:24:47,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064322615] [2022-03-15 18:24:47,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:24:47,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:24:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:24:47,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:24:47,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:24:47,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064322615] [2022-03-15 18:24:47,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064322615] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:24:47,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679956522] [2022-03-15 18:24:47,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:24:47,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:24:47,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:24:47,483 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) [2022-03-15 18:24:47,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 18:24:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:24:47,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 18:24:47,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:24:47,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:24:47,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 18:24:47,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679956522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:24:47,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-15 18:24:47,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2022-03-15 18:24:47,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [764563413] [2022-03-15 18:24:47,833 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:24:47,841 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:24:48,197 INFO L252 McrAutomatonBuilder]: Finished intersection with 536 states and 1818 transitions. [2022-03-15 18:24:48,197 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:25:01,487 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:25:01,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 18:25:01,488 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:25:01,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 18:25:01,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:25:01,489 INFO L87 Difference]: Start difference. First operand 632 states and 3602 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2022-03-15 18:25:01,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:25:01,606 INFO L93 Difference]: Finished difference Result 1261 states and 7201 transitions. [2022-03-15 18:25:01,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:25:01,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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 32 [2022-03-15 18:25:01,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:25:01,618 INFO L225 Difference]: With dead ends: 1261 [2022-03-15 18:25:01,618 INFO L226 Difference]: Without dead ends: 1174 [2022-03-15 18:25:01,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:25:01,620 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:25:01,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:25:01,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2022-03-15 18:25:01,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1174. [2022-03-15 18:25:01,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 1173 states have (on average 5.786018755328218) internal successors, (6787), 1173 states have internal predecessors, (6787), 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) [2022-03-15 18:25:01,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 6787 transitions. [2022-03-15 18:25:01,685 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 6787 transitions. Word has length 32 [2022-03-15 18:25:01,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:25:01,688 INFO L470 AbstractCegarLoop]: Abstraction has 1174 states and 6787 transitions. [2022-03-15 18:25:01,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2022-03-15 18:25:01,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 6787 transitions. [2022-03-15 18:25:01,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-15 18:25:01,693 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:25:01,693 INFO L514 BasicCegarLoop]: 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] [2022-03-15 18:25:01,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-15 18:25:01,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:25:01,917 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-15 18:25:01,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:25:01,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1359460261, now seen corresponding path program 1 times [2022-03-15 18:25:01,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:25:01,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043139454] [2022-03-15 18:25:01,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:25:01,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:25:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:25:02,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:25:02,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:25:02,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043139454] [2022-03-15 18:25:02,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043139454] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:25:02,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634754472] [2022-03-15 18:25:02,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:25:02,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:25:02,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:25:02,076 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) [2022-03-15 18:25:02,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 18:25:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:25:02,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 18:25:02,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:25:02,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 18:25:02,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 18:25:02,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634754472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:25:02,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-15 18:25:02,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2022-03-15 18:25:02,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1032468100] [2022-03-15 18:25:02,275 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:25:02,283 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:25:02,612 INFO L252 McrAutomatonBuilder]: Finished intersection with 780 states and 2800 transitions. [2022-03-15 18:25:02,612 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:25:13,908 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:25:13,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 18:25:13,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:25:13,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 18:25:13,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:25:13,910 INFO L87 Difference]: Start difference. First operand 1174 states and 6787 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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) [2022-03-15 18:25:14,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:25:14,015 INFO L93 Difference]: Finished difference Result 1791 states and 10354 transitions. [2022-03-15 18:25:14,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:25:14,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2022-03-15 18:25:14,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:25:14,028 INFO L225 Difference]: With dead ends: 1791 [2022-03-15 18:25:14,028 INFO L226 Difference]: Without dead ends: 1354 [2022-03-15 18:25:14,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 778 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:25:14,034 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:25:14,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:25:14,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2022-03-15 18:25:14,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 998. [2022-03-15 18:25:14,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 997 states have (on average 5.817452357071214) internal successors, (5800), 997 states have internal predecessors, (5800), 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) [2022-03-15 18:25:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 5800 transitions. [2022-03-15 18:25:14,091 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 5800 transitions. Word has length 33 [2022-03-15 18:25:14,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:25:14,092 INFO L470 AbstractCegarLoop]: Abstraction has 998 states and 5800 transitions. [2022-03-15 18:25:14,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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) [2022-03-15 18:25:14,092 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 5800 transitions. [2022-03-15 18:25:14,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-15 18:25:14,099 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:25:14,099 INFO L514 BasicCegarLoop]: 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] [2022-03-15 18:25:14,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-15 18:25:14,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-03-15 18:25:14,323 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-15 18:25:14,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:25:14,323 INFO L85 PathProgramCache]: Analyzing trace with hash -499383825, now seen corresponding path program 1 times [2022-03-15 18:25:14,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:25:14,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026621662] [2022-03-15 18:25:14,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:25:14,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:25:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:25:14,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:25:14,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:25:14,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026621662] [2022-03-15 18:25:14,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026621662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:25:14,458 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:25:14,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 18:25:14,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [672734352] [2022-03-15 18:25:14,458 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:25:14,465 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:25:14,691 INFO L252 McrAutomatonBuilder]: Finished intersection with 756 states and 2708 transitions. [2022-03-15 18:25:14,692 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:25:40,586 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 108 new interpolants: [10576#(or (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296))), 10533#(or (<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296))), 10523#(or (<= (mod ~n~0 4294967296) (mod ~x2~0 4294967296)) (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x2~0) 4294967296) (mod ~n~0 4294967296))), 10556#(or (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x6~0 4294967296) (mod ~n~0 4294967296))), 10515#(< (mod ~x6~0 4294967296) (mod ~n~0 4294967296)), 10568#(or (<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)) (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296))), 10512#(or (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))), 10578#(or (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (not (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296))) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296))), 10521#(or (<= (mod ~n~0 4294967296) (mod ~x2~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x2~0) 4294967296) (mod ~n~0 4294967296))), 10537#(or (<= (mod ~n~0 4294967296) (mod ~x2~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (not (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296))) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x2~0) 4294967296) (mod ~n~0 4294967296))), 10541#(or (<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))), 10587#(or (not (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))) (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x2~0) 4294967296) (mod ~n~0 4294967296))), 10595#(or (<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)) (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296))), 10505#(or (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296))), 10507#(< (mod ~x2~0 4294967296) (mod ~n~0 4294967296)), 10522#(or (<= (mod ~n~0 4294967296) (mod ~x2~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x2~0) 4294967296) (mod ~n~0 4294967296))), 10543#(or (<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296))), 10574#(or (<= (mod ~n~0 4294967296) (mod ~x2~0 4294967296)) (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x2~0) 4294967296) (mod ~n~0 4294967296))), 10532#(or (not (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296))) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296))), 10600#(or (not (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))) (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (not (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296))) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x2~0) 4294967296) (mod ~n~0 4294967296))), 10569#(or (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (not (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296))) (< (mod ~x6~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296))), 10516#(or (< (mod ~x6~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296))), 10536#(or (<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)) (<= (mod ~n~0 4294967296) (mod ~x2~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x2~0) 4294967296) (mod ~n~0 4294967296))), 10557#(or (<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)) (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296))), 10535#(or (not (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))) (<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x2~0) 4294967296) (mod ~n~0 4294967296))), 10513#(or (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) 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4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))), 10604#(or (not (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))) (<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)) (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x2~0) 4294967296) (mod ~n~0 4294967296))), 10525#(or (<= (mod ~n~0 4294967296) (mod ~x2~0 4294967296)) (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x2~0) 4294967296) (mod ~n~0 4294967296))), 10540#(<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)), 10509#(or (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))), 10555#(or (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296))), 10590#(or (not (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))) (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x2~0) 4294967296) (mod ~n~0 4294967296))), 10572#(or (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296))), 10575#(or (<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)) (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296))), 10539#(or (not (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296))) (< (mod ~x6~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296))), 10593#(or (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (not (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296))) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296))), 10581#(or (<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)) (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296))), 10551#(or (not (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))) (<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x2~0) 4294967296) (mod ~n~0 4294967296))), 10504#(or (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296))), 10529#(or (<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296))), 10547#(or (<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))), 10534#(or (<= (mod ~n~0 4294967296) (mod ~x5~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296))), 10531#(or (not (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296))) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x5~0) 4294967296) (mod ~n~0 4294967296))), 10526#(or (<= (mod ~n~0 4294967296) (mod ~x2~0 4294967296)) (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* 2 ~x2~0) 4294967296) (mod ~n~0 4294967296))), 10561#(or (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296)))] [2022-03-15 18:25:40,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-03-15 18:25:40,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:25:40,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-03-15 18:25:40,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1261, Invalid=11171, Unknown=0, NotChecked=0, Total=12432 [2022-03-15 18:25:40,591 INFO L87 Difference]: Start difference. First operand 998 states and 5800 transitions. Second operand has 112 states, 112 states have (on average 7.946428571428571) internal successors, (890), 111 states have internal predecessors, (890), 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) [2022-03-15 18:26:20,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:26:20,431 INFO L93 Difference]: Finished difference Result 6770 states and 38436 transitions. [2022-03-15 18:26:20,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-15 18:26:20,432 INFO L78 Accepts]: Start accepts. Automaton has has 112 states, 112 states have (on average 7.946428571428571) internal successors, (890), 111 states have internal predecessors, (890), 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 33 [2022-03-15 18:26:20,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:26:20,504 INFO L225 Difference]: With dead ends: 6770 [2022-03-15 18:26:20,504 INFO L226 Difference]: Without dead ends: 4436 [2022-03-15 18:26:20,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 852 GetRequests, 611 SyntacticMatches, 4 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14744 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=11461, Invalid=45421, Unknown=0, NotChecked=0, Total=56882 [2022-03-15 18:26:20,515 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 6048 mSDsluCounter, 5944 mSDsCounter, 0 mSdLazyCounter, 16545 mSolverCounterSat, 1497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6048 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 18042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1497 IncrementalHoareTripleChecker+Valid, 16545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:26:20,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6048 Valid, 0 Invalid, 18042 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1497 Valid, 16545 Invalid, 0 Unknown, 0 Unchecked, 31.0s Time] [2022-03-15 18:26:20,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4436 states. [2022-03-15 18:26:20,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4436 to 3726. [2022-03-15 18:26:20,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3726 states, 3725 states have (on average 6.285637583892617) internal successors, (23414), 3725 states have internal predecessors, (23414), 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) [2022-03-15 18:26:20,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3726 states to 3726 states and 23414 transitions. [2022-03-15 18:26:20,661 INFO L78 Accepts]: Start accepts. Automaton has 3726 states and 23414 transitions. Word has length 33 [2022-03-15 18:26:20,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:26:20,662 INFO L470 AbstractCegarLoop]: Abstraction has 3726 states and 23414 transitions. [2022-03-15 18:26:20,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 7.946428571428571) internal successors, (890), 111 states have internal predecessors, (890), 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) [2022-03-15 18:26:20,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3726 states and 23414 transitions. [2022-03-15 18:26:20,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-03-15 18:26:20,678 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:26:20,678 INFO L514 BasicCegarLoop]: 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] [2022-03-15 18:26:20,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 18:26:20,678 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-15 18:26:20,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:26:20,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1807350611, now seen corresponding path program 1 times [2022-03-15 18:26:20,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:26:20,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994243473] [2022-03-15 18:26:20,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:26:20,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:26:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:26:20,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:26:20,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:26:20,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994243473] [2022-03-15 18:26:20,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994243473] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:26:20,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78567501] [2022-03-15 18:26:20,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:26:20,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:26:20,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:26:20,860 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) [2022-03-15 18:26:20,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 18:26:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:26:20,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 18:26:20,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:26:21,041 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:26:21,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 18:26:21,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78567501] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:26:21,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-15 18:26:21,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2022-03-15 18:26:21,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [882558728] [2022-03-15 18:26:21,042 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:26:21,048 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:26:21,632 INFO L252 McrAutomatonBuilder]: Finished intersection with 946 states and 3482 transitions. [2022-03-15 18:26:21,632 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:26:34,593 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:26:34,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 18:26:34,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:26:34,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 18:26:34,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 18:26:34,594 INFO L87 Difference]: Start difference. First operand 3726 states and 23414 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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) [2022-03-15 18:26:34,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:26:34,703 INFO L93 Difference]: Finished difference Result 5591 states and 35215 transitions. [2022-03-15 18:26:34,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:26:34,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 34 [2022-03-15 18:26:34,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:26:34,736 INFO L225 Difference]: With dead ends: 5591 [2022-03-15 18:26:34,736 INFO L226 Difference]: Without dead ends: 5076 [2022-03-15 18:26:34,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 948 GetRequests, 944 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 18:26:34,737 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:26:34,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:26:34,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5076 states. [2022-03-15 18:26:34,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5076 to 4434. [2022-03-15 18:26:34,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4434 states, 4433 states have (on average 6.502594180013535) internal successors, (28826), 4433 states have internal predecessors, (28826), 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) [2022-03-15 18:26:34,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4434 states to 4434 states and 28826 transitions. [2022-03-15 18:26:34,912 INFO L78 Accepts]: Start accepts. Automaton has 4434 states and 28826 transitions. Word has length 34 [2022-03-15 18:26:34,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:26:34,913 INFO L470 AbstractCegarLoop]: Abstraction has 4434 states and 28826 transitions. [2022-03-15 18:26:34,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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) [2022-03-15 18:26:34,913 INFO L276 IsEmpty]: Start isEmpty. Operand 4434 states and 28826 transitions. [2022-03-15 18:26:34,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-15 18:26:34,935 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:26:34,935 INFO L514 BasicCegarLoop]: 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] [2022-03-15 18:26:34,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-15 18:26:35,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:26:35,160 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-15 18:26:35,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:26:35,160 INFO L85 PathProgramCache]: Analyzing trace with hash -872362187, now seen corresponding path program 1 times [2022-03-15 18:26:35,161 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:26:35,161 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869998330] [2022-03-15 18:26:35,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:26:35,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:26:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:26:35,310 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 18:26:35,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:26:35,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869998330] [2022-03-15 18:26:35,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869998330] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:26:35,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218190165] [2022-03-15 18:26:35,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:26:35,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:26:35,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:26:35,316 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) [2022-03-15 18:26:35,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 18:26:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:26:35,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-15 18:26:35,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:26:35,500 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:26:35,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 18:26:35,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218190165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:26:35,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-15 18:26:35,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-03-15 18:26:35,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2099155024] [2022-03-15 18:26:35,501 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:26:35,507 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:26:36,225 INFO L252 McrAutomatonBuilder]: Finished intersection with 1378 states and 5342 transitions. [2022-03-15 18:26:36,226 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:27:07,374 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 11 new interpolants: [39757#(< (mod ~x6~0 4294967296) (mod ~n~0 4294967296)), 39761#(<= (mod ~n~0 4294967296) 0), 39764#(or (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x6~0 4294967296) (mod ~n~0 4294967296)) (<= (mod ~n~0 4294967296) 0)), 39765#(<= (mod ~n~0 4294967296) (mod ~x6~0 4294967296)), 39760#(or (< (mod (* 2 ~x6~0) 4294967296) (mod ~n~0 4294967296)) (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (not (< (mod ~x6~0 4294967296) (mod ~n~0 4294967296)))), 39766#(or (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (<= (mod ~n~0 4294967296) (mod ~x6~0 4294967296))), 39759#(or (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x6~0 4294967296) (mod ~n~0 4294967296))), 39758#(or (< (mod (* 2 ~x6~0) 4294967296) (mod ~n~0 4294967296)) (not (< (mod ~x6~0 4294967296) (mod ~n~0 4294967296)))), 39763#(or (< (mod ~x5~0 4294967296) (mod ~n~0 4294967296)) (<= (mod ~n~0 4294967296) 0)), 39762#(or (< (mod ~x6~0 4294967296) (mod ~n~0 4294967296)) (<= (mod ~n~0 4294967296) 0)), 39767#(or (= (mod ~x6~0 4294967296) (mod ~x5~0 4294967296)) (<= (mod ~n~0 4294967296) 0))] [2022-03-15 18:27:07,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 18:27:07,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:27:07,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 18:27:07,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-03-15 18:27:07,375 INFO L87 Difference]: Start difference. First operand 4434 states and 28826 transitions. Second operand has 15 states, 15 states have (on average 16.933333333333334) internal successors, (254), 14 states have internal predecessors, (254), 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) [2022-03-15 18:27:07,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:27:07,911 INFO L93 Difference]: Finished difference Result 5938 states and 37240 transitions. [2022-03-15 18:27:07,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 18:27:07,912 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 16.933333333333334) internal successors, (254), 14 states have internal predecessors, (254), 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 35 [2022-03-15 18:27:07,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:27:07,943 INFO L225 Difference]: With dead ends: 5938 [2022-03-15 18:27:07,943 INFO L226 Difference]: Without dead ends: 5170 [2022-03-15 18:27:07,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1382 GetRequests, 1028 SyntacticMatches, 336 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3091 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2022-03-15 18:27:07,944 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 121 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 18:27:07,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 0 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 18:27:07,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5170 states. [2022-03-15 18:27:08,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5170 to 3532. [2022-03-15 18:27:08,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3532 states, 3531 states have (on average 6.315208156329652) internal successors, (22299), 3531 states have internal predecessors, (22299), 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) [2022-03-15 18:27:08,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 22299 transitions. [2022-03-15 18:27:08,086 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 22299 transitions. Word has length 35 [2022-03-15 18:27:08,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:27:08,086 INFO L470 AbstractCegarLoop]: Abstraction has 3532 states and 22299 transitions. [2022-03-15 18:27:08,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 16.933333333333334) internal successors, (254), 14 states have internal predecessors, (254), 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) [2022-03-15 18:27:08,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 22299 transitions. [2022-03-15 18:27:08,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-15 18:27:08,099 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:27:08,099 INFO L514 BasicCegarLoop]: 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] [2022-03-15 18:27:08,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-15 18:27:08,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:27:08,327 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-15 18:27:08,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:27:08,328 INFO L85 PathProgramCache]: Analyzing trace with hash 958328962, now seen corresponding path program 1 times [2022-03-15 18:27:08,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:27:08,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533308175] [2022-03-15 18:27:08,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:27:08,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:27:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:27:08,467 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 18:27:08,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:27:08,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533308175] [2022-03-15 18:27:08,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533308175] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:27:08,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868242463] [2022-03-15 18:27:08,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:27:08,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:27:08,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:27:08,472 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) [2022-03-15 18:27:08,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-15 18:27:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:27:08,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-15 18:27:08,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:27:08,815 INFO L884 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. Received shutdown request... [2022-03-15 18:37:58,865 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 18:37:58,865 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 18:37:59,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-03-15 18:37:59,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown