/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/popl20-more-sum-array-hom.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 19:32:01,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 19:32:01,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 19:32:01,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 19:32:01,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 19:32:01,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 19:32:01,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 19:32:01,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 19:32:01,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 19:32:01,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 19:32:01,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 19:32:01,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 19:32:01,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 19:32:01,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 19:32:01,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 19:32:01,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 19:32:01,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 19:32:01,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 19:32:01,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 19:32:01,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 19:32:01,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 19:32:01,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 19:32:01,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 19:32:01,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 19:32:01,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 19:32:01,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 19:32:01,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 19:32:01,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 19:32:01,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 19:32:01,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-15 19:32:01,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 19:32:01,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 19:32:01,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 19:32:01,623 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 19:32:01,637 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 19:32:01,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 19:32:01,638 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 19:32:01,638 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 19:32:01,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 19:32:01,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 19:32:01,639 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 19:32:01,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 19:32:01,639 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 19:32:01,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 19:32:01,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 19:32:01,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 19:32:01,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 19:32:01,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 19:32:01,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 19:32:01,640 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 19:32:01,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 19:32:01,640 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 19:32:01,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 19:32:01,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 19:32:01,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 19:32:01,641 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 19:32:01,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 19:32:01,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 19:32:01,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 19:32:01,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 19:32:01,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 19:32:01,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 19:32:01,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 19:32:01,642 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 19:32:01,642 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 19:32:01,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 19:32:01,642 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 19:32:01,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 19:32:01,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 19:32:01,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 19:32:01,867 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 19:32:01,868 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 19:32:01,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-sum-array-hom.wvr.c [2022-03-15 19:32:01,915 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5768cbd83/c6f71cdd494043abbdf597943ac73eb3/FLAG98b200280 [2022-03-15 19:32:02,283 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 19:32:02,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sum-array-hom.wvr.c [2022-03-15 19:32:02,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5768cbd83/c6f71cdd494043abbdf597943ac73eb3/FLAG98b200280 [2022-03-15 19:32:02,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5768cbd83/c6f71cdd494043abbdf597943ac73eb3 [2022-03-15 19:32:02,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 19:32:02,316 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 19:32:02,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 19:32:02,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 19:32:02,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 19:32:02,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 07:32:02" (1/1) ... [2022-03-15 19:32:02,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25161a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:32:02, skipping insertion in model container [2022-03-15 19:32:02,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 07:32:02" (1/1) ... [2022-03-15 19:32:02,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 19:32:02,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 19:32:02,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sum-array-hom.wvr.c[2396,2409] [2022-03-15 19:32:02,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 19:32:02,540 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 19:32:02,570 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sum-array-hom.wvr.c[2396,2409] [2022-03-15 19:32:02,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 19:32:02,581 INFO L208 MainTranslator]: Completed translation [2022-03-15 19:32:02,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:32:02 WrapperNode [2022-03-15 19:32:02,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 19:32:02,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 19:32:02,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 19:32:02,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 19:32:02,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:32:02" (1/1) ... [2022-03-15 19:32:02,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:32:02" (1/1) ... [2022-03-15 19:32:02,624 INFO L137 Inliner]: procedures = 25, calls = 34, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 102 [2022-03-15 19:32:02,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 19:32:02,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 19:32:02,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 19:32:02,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 19:32:02,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:32:02" (1/1) ... [2022-03-15 19:32:02,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:32:02" (1/1) ... [2022-03-15 19:32:02,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:32:02" (1/1) ... [2022-03-15 19:32:02,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:32:02" (1/1) ... [2022-03-15 19:32:02,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:32:02" (1/1) ... [2022-03-15 19:32:02,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:32:02" (1/1) ... [2022-03-15 19:32:02,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:32:02" (1/1) ... [2022-03-15 19:32:02,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 19:32:02,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 19:32:02,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 19:32:02,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 19:32:02,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:32:02" (1/1) ... [2022-03-15 19:32:02,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 19:32:02,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:32:02,683 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 19:32:02,692 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 19:32:02,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 19:32:02,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 19:32:02,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 19:32:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 19:32:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 19:32:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 19:32:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 19:32:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 19:32:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 19:32:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 19:32:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 19:32:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-15 19:32:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 19:32:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 19:32:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 19:32:02,711 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 19:32:02,766 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 19:32:02,767 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 19:32:02,991 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 19:32:02,997 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 19:32:02,997 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-15 19:32:02,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 07:32:02 BoogieIcfgContainer [2022-03-15 19:32:02,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 19:32:03,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 19:32:03,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 19:32:03,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 19:32:03,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 07:32:02" (1/3) ... [2022-03-15 19:32:03,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54af00e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 07:32:03, skipping insertion in model container [2022-03-15 19:32:03,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:32:02" (2/3) ... [2022-03-15 19:32:03,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54af00e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 07:32:03, skipping insertion in model container [2022-03-15 19:32:03,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 07:32:02" (3/3) ... [2022-03-15 19:32:03,004 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-sum-array-hom.wvr.c [2022-03-15 19:32:03,011 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 19:32:03,011 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 19:32:03,011 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 19:32:03,011 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 19:32:03,058 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,058 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,058 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,058 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,059 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,059 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,060 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,060 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,061 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,061 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,061 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,062 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,062 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,062 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,062 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,063 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,063 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,063 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,063 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,063 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,063 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,063 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,064 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,064 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,064 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,064 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,064 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,064 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,065 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,065 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,065 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,065 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,065 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,065 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,065 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,065 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,065 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,065 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,066 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,066 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,066 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,066 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,067 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,067 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,067 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,067 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,067 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,067 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,067 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,068 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,068 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,068 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,068 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,068 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,068 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,068 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,069 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,069 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,069 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,069 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,069 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,069 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,069 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,069 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,070 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,070 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,072 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,072 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,072 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,072 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,073 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,074 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,078 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,078 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,079 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,079 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,079 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:32:03,082 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-15 19:32:03,112 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 19:32:03,116 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 19:32:03,116 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 19:32:03,124 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 19:32:03,132 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 160 transitions, 344 flow [2022-03-15 19:32:03,136 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 160 transitions, 344 flow [2022-03-15 19:32:03,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 158 places, 160 transitions, 344 flow [2022-03-15 19:32:03,190 INFO L129 PetriNetUnfolder]: 12/157 cut-off events. [2022-03-15 19:32:03,191 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-03-15 19:32:03,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 157 events. 12/157 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 106 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2022-03-15 19:32:03,197 INFO L116 LiptonReduction]: Number of co-enabled transitions 1728 [2022-03-15 19:32:07,162 INFO L131 LiptonReduction]: Checked pairs total: 1924 [2022-03-15 19:32:07,162 INFO L133 LiptonReduction]: Total number of compositions: 151 [2022-03-15 19:32:07,167 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 28 transitions, 80 flow [2022-03-15 19:32:07,188 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 0 states have call successors, (0), 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 19:32:07,190 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 0 states have call successors, (0), 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 19:32:07,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-15 19:32:07,195 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:32:07,195 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] [2022-03-15 19:32:07,196 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 19:32:07,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:32:07,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1859871671, now seen corresponding path program 1 times [2022-03-15 19:32:07,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:32:07,212 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973446060] [2022-03-15 19:32:07,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:32:07,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:32:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:32:07,482 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 19:32:07,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:32:07,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973446060] [2022-03-15 19:32:07,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973446060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:32:07,483 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:32:07,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 19:32:07,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [572293658] [2022-03-15 19:32:07,485 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:32:07,489 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:32:07,515 INFO L252 McrAutomatonBuilder]: Finished intersection with 107 states and 244 transitions. [2022-03-15 19:32:07,515 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:32:08,755 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 19:32:08,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 19:32:08,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:32:08,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 19:32:08,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 19:32:08,775 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 0 states have call successors, (0), 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 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 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 19:32:08,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:32:08,818 INFO L93 Difference]: Finished difference Result 204 states and 632 transitions. [2022-03-15 19:32:08,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 19:32:08,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2022-03-15 19:32:08,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:32:08,829 INFO L225 Difference]: With dead ends: 204 [2022-03-15 19:32:08,829 INFO L226 Difference]: Without dead ends: 197 [2022-03-15 19:32:08,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 19:32:08,833 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 1 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 19:32:08,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 6 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 19:32:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-03-15 19:32:08,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2022-03-15 19:32:08,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 3.13265306122449) internal successors, (614), 196 states have internal predecessors, (614), 0 states have call successors, (0), 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 19:32:08,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 614 transitions. [2022-03-15 19:32:08,882 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 614 transitions. Word has length 20 [2022-03-15 19:32:08,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:32:08,886 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 614 transitions. [2022-03-15 19:32:08,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 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 19:32:08,886 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 614 transitions. [2022-03-15 19:32:08,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-15 19:32:08,891 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:32:08,891 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] [2022-03-15 19:32:08,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 19:32:08,892 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 19:32:08,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:32:08,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1499088210, now seen corresponding path program 1 times [2022-03-15 19:32:08,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:32:08,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346277931] [2022-03-15 19:32:08,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:32:08,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:32:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:32:08,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:32:08,952 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:32:08,952 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346277931] [2022-03-15 19:32:08,952 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346277931] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:32:08,952 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:32:08,952 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 19:32:08,952 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1745302323] [2022-03-15 19:32:08,953 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:32:08,955 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:32:08,966 INFO L252 McrAutomatonBuilder]: Finished intersection with 89 states and 187 transitions. [2022-03-15 19:32:08,966 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:32:09,273 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [982#(or (< (+ thread1Thread1of1ForFork0_~i~0 1) ~N~0) (<= ~N~0 thread1Thread1of1ForFork0_~i~0)), 984#(<= ~N~0 thread1Thread1of1ForFork0_~i~0), 983#(or (<= ~N~0 0) (< 1 ~N~0)), 981#(< thread1Thread1of1ForFork0_~i~0 ~N~0)] [2022-03-15 19:32:09,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 19:32:09,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:32:09,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 19:32:09,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-15 19:32:09,275 INFO L87 Difference]: Start difference. First operand 197 states and 614 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 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 19:32:09,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:32:09,381 INFO L93 Difference]: Finished difference Result 379 states and 1141 transitions. [2022-03-15 19:32:09,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 19:32:09,381 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 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 21 [2022-03-15 19:32:09,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:32:09,384 INFO L225 Difference]: With dead ends: 379 [2022-03-15 19:32:09,384 INFO L226 Difference]: Without dead ends: 375 [2022-03-15 19:32:09,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-03-15 19:32:09,385 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 107 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:32:09,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 26 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:32:09,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-03-15 19:32:09,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 287. [2022-03-15 19:32:09,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 286 states have (on average 3.1783216783216783) internal successors, (909), 286 states have internal predecessors, (909), 0 states have call successors, (0), 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 19:32:09,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 909 transitions. [2022-03-15 19:32:09,410 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 909 transitions. Word has length 21 [2022-03-15 19:32:09,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:32:09,411 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 909 transitions. [2022-03-15 19:32:09,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 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 19:32:09,411 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 909 transitions. [2022-03-15 19:32:09,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-15 19:32:09,412 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:32:09,412 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] [2022-03-15 19:32:09,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 19:32:09,412 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 19:32:09,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:32:09,413 INFO L85 PathProgramCache]: Analyzing trace with hash 290469773, now seen corresponding path program 1 times [2022-03-15 19:32:09,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:32:09,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764746581] [2022-03-15 19:32:09,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:32:09,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:32:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:32:09,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:32:09,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:32:09,487 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764746581] [2022-03-15 19:32:09,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764746581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:32:09,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:32:09,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 19:32:09,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1785056308] [2022-03-15 19:32:09,489 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:32:09,491 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:32:09,509 INFO L252 McrAutomatonBuilder]: Finished intersection with 133 states and 315 transitions. [2022-03-15 19:32:09,509 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:32:10,020 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 19:32:10,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 19:32:10,021 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:32:10,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 19:32:10,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-15 19:32:10,021 INFO L87 Difference]: Start difference. First operand 287 states and 909 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 19:32:10,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:32:10,102 INFO L93 Difference]: Finished difference Result 359 states and 1035 transitions. [2022-03-15 19:32:10,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 19:32:10,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 21 [2022-03-15 19:32:10,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:32:10,104 INFO L225 Difference]: With dead ends: 359 [2022-03-15 19:32:10,105 INFO L226 Difference]: Without dead ends: 333 [2022-03-15 19:32:10,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-15 19:32:10,105 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 33 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:32:10,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 15 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:32:10,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-03-15 19:32:10,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 313. [2022-03-15 19:32:10,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 312 states have (on average 3.0096153846153846) internal successors, (939), 312 states have internal predecessors, (939), 0 states have call successors, (0), 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 19:32:10,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 939 transitions. [2022-03-15 19:32:10,113 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 939 transitions. Word has length 21 [2022-03-15 19:32:10,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:32:10,113 INFO L470 AbstractCegarLoop]: Abstraction has 313 states and 939 transitions. [2022-03-15 19:32:10,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 19:32:10,114 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 939 transitions. [2022-03-15 19:32:10,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-15 19:32:10,114 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:32:10,115 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] [2022-03-15 19:32:10,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 19:32:10,115 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 19:32:10,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:32:10,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1959338779, now seen corresponding path program 1 times [2022-03-15 19:32:10,124 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:32:10,124 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200586989] [2022-03-15 19:32:10,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:32:10,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:32:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:32:10,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:32:10,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:32:10,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200586989] [2022-03-15 19:32:10,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200586989] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:32:10,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:32:10,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 19:32:10,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1894090171] [2022-03-15 19:32:10,190 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:32:10,192 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:32:10,210 INFO L252 McrAutomatonBuilder]: Finished intersection with 131 states and 311 transitions. [2022-03-15 19:32:10,210 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:32:10,801 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [2942#(or (<= ~M~0 thread2Thread1of1ForFork1_~i~1) (< (+ thread2Thread1of1ForFork1_~i~1 1) ~M~0)), 2943#(or (<= ~M~0 0) (< 1 ~M~0)), 2941#(< thread2Thread1of1ForFork1_~i~1 ~M~0)] [2022-03-15 19:32:10,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 19:32:10,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:32:10,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 19:32:10,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-15 19:32:10,803 INFO L87 Difference]: Start difference. First operand 313 states and 939 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 19:32:10,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:32:10,921 INFO L93 Difference]: Finished difference Result 265 states and 763 transitions. [2022-03-15 19:32:10,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 19:32:10,922 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 21 [2022-03-15 19:32:10,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:32:10,924 INFO L225 Difference]: With dead ends: 265 [2022-03-15 19:32:10,924 INFO L226 Difference]: Without dead ends: 198 [2022-03-15 19:32:10,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-15 19:32:10,929 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 36 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:32:10,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 18 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:32:10,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-03-15 19:32:10,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-03-15 19:32:10,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 3.1218274111675126) internal successors, (615), 197 states have internal predecessors, (615), 0 states have call successors, (0), 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 19:32:10,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 615 transitions. [2022-03-15 19:32:10,935 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 615 transitions. Word has length 21 [2022-03-15 19:32:10,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:32:10,935 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 615 transitions. [2022-03-15 19:32:10,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 19:32:10,935 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 615 transitions. [2022-03-15 19:32:10,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-15 19:32:10,936 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:32:10,936 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] [2022-03-15 19:32:10,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 19:32:10,936 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 19:32:10,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:32:10,937 INFO L85 PathProgramCache]: Analyzing trace with hash -787848332, now seen corresponding path program 1 times [2022-03-15 19:32:10,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:32:10,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229815683] [2022-03-15 19:32:10,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:32:10,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:32:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:32:11,015 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 19:32:11,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:32:11,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229815683] [2022-03-15 19:32:11,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229815683] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 19:32:11,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106729119] [2022-03-15 19:32:11,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:32:11,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:32:11,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:32:11,017 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 19:32:11,019 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 19:32:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:32:11,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 19:32:11,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 19:32:11,232 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 19:32:11,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 19:32:11,311 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 19:32:11,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106729119] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-15 19:32:11,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-15 19:32:11,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 13 [2022-03-15 19:32:11,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [812125295] [2022-03-15 19:32:11,312 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:32:11,314 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:32:11,325 INFO L252 McrAutomatonBuilder]: Finished intersection with 90 states and 188 transitions. [2022-03-15 19:32:11,326 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:32:11,805 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 5 new interpolants: [3753#(or (<= (+ ~M~0 1) ~N~0) (< 0 ~M~0)), 3751#(<= (+ ~M~0 1) ~N~0), 3749#(< thread2Thread1of1ForFork1_~i~1 ~M~0), 3752#(or (<= (+ ~M~0 1) ~N~0) (< thread2Thread1of1ForFork1_~i~1 ~M~0)), 3750#(< 0 ~M~0)] [2022-03-15 19:32:11,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 19:32:11,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:32:11,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 19:32:11,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-03-15 19:32:11,810 INFO L87 Difference]: Start difference. First operand 198 states and 615 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:32:12,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:32:12,021 INFO L93 Difference]: Finished difference Result 324 states and 1009 transitions. [2022-03-15 19:32:12,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 19:32:12,021 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-03-15 19:32:12,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:32:12,023 INFO L225 Difference]: With dead ends: 324 [2022-03-15 19:32:12,023 INFO L226 Difference]: Without dead ends: 324 [2022-03-15 19:32:12,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 89 SyntacticMatches, 9 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2022-03-15 19:32:12,024 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 124 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:32:12,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 40 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:32:12,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-03-15 19:32:12,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 180. [2022-03-15 19:32:12,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 3.1340782122905027) internal successors, (561), 179 states have internal predecessors, (561), 0 states have call successors, (0), 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 19:32:12,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 561 transitions. [2022-03-15 19:32:12,029 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 561 transitions. Word has length 22 [2022-03-15 19:32:12,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:32:12,029 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 561 transitions. [2022-03-15 19:32:12,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:32:12,029 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 561 transitions. [2022-03-15 19:32:12,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-15 19:32:12,030 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:32:12,030 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] [2022-03-15 19:32:12,058 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 19:32:12,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:32:12,243 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 19:32:12,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:32:12,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1001709651, now seen corresponding path program 1 times [2022-03-15 19:32:12,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:32:12,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956728300] [2022-03-15 19:32:12,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:32:12,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:32:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:32:12,285 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 19:32:12,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:32:12,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956728300] [2022-03-15 19:32:12,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956728300] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 19:32:12,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201977277] [2022-03-15 19:32:12,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:32:12,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:32:12,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:32:12,287 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 19:32:12,292 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 19:32:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:32:12,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-15 19:32:12,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 19:32:12,402 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 19:32:12,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 19:32:12,445 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 19:32:12,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201977277] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-15 19:32:12,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-15 19:32:12,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-03-15 19:32:12,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1803491306] [2022-03-15 19:32:12,446 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:32:12,449 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:32:12,467 INFO L252 McrAutomatonBuilder]: Finished intersection with 134 states and 316 transitions. [2022-03-15 19:32:12,467 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:32:12,917 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 19:32:12,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 19:32:12,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:32:12,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 19:32:12,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-15 19:32:12,918 INFO L87 Difference]: Start difference. First operand 180 states and 561 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 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 19:32:12,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:32:12,955 INFO L93 Difference]: Finished difference Result 224 states and 707 transitions. [2022-03-15 19:32:12,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 19:32:12,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 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 22 [2022-03-15 19:32:12,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:32:12,957 INFO L225 Difference]: With dead ends: 224 [2022-03-15 19:32:12,957 INFO L226 Difference]: Without dead ends: 224 [2022-03-15 19:32:12,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 142 SyntacticMatches, 8 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-03-15 19:32:12,958 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 33 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 19:32:12,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 7 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 19:32:12,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-03-15 19:32:12,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2022-03-15 19:32:12,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 223 states have (on average 3.1704035874439462) internal successors, (707), 223 states have internal predecessors, (707), 0 states have call successors, (0), 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 19:32:12,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 707 transitions. [2022-03-15 19:32:12,963 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 707 transitions. Word has length 22 [2022-03-15 19:32:12,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:32:12,964 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 707 transitions. [2022-03-15 19:32:12,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 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 19:32:12,964 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 707 transitions. [2022-03-15 19:32:12,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-03-15 19:32:12,964 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:32:12,965 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] [2022-03-15 19:32:12,995 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 19:32:13,182 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,SelfDestructingSolverStorable5 [2022-03-15 19:32:13,184 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 19:32:13,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:32:13,184 INFO L85 PathProgramCache]: Analyzing trace with hash -836545086, now seen corresponding path program 1 times [2022-03-15 19:32:13,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:32:13,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724354758] [2022-03-15 19:32:13,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:32:13,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:32:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:32:13,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:32:13,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:32:13,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724354758] [2022-03-15 19:32:13,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724354758] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 19:32:13,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837335232] [2022-03-15 19:32:13,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:32:13,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:32:13,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:32:13,734 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 19:32:13,735 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 19:32:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:32:13,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 47 conjunts are in the unsatisfiable core [2022-03-15 19:32:13,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 19:32:13,885 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-15 19:32:13,943 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 19:32:14,066 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 19:32:14,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 19:32:14,171 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-15 19:32:14,269 INFO L353 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-03-15 19:32:14,269 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-03-15 19:32:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:32:14,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 19:32:14,868 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:32:14,868 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 52 [2022-03-15 19:32:14,899 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:32:14,900 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 974 treesize of output 922 [2022-03-15 19:32:14,919 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 910 treesize of output 814 [2022-03-15 19:32:14,932 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:32:14,933 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 814 treesize of output 746 [2022-03-15 19:32:14,944 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:32:14,946 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 734 treesize of output 706 Received shutdown request... [2022-03-15 19:44:51,237 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-03-15 19:44:51,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-15 19:44:51,275 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 19:44:51,276 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 19:44:51,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:44:51,451 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 24 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ∧-19-3-2-3-1 context. [2022-03-15 19:44:51,453 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-15 19:44:51,453 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-15 19:44:51,453 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-15 19:44:51,454 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:44:51,456 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 19:44:51,456 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 19:44:51,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 07:44:51 BasicIcfg [2022-03-15 19:44:51,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 19:44:51,458 INFO L158 Benchmark]: Toolchain (without parser) took 769142.27ms. Allocated memory was 183.5MB in the beginning and 453.0MB in the end (delta: 269.5MB). Free memory was 128.8MB in the beginning and 380.2MB in the end (delta: -251.4MB). Peak memory consumption was 256.4MB. Max. memory is 8.0GB. [2022-03-15 19:44:51,458 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory is still 145.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 19:44:51,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.90ms. Allocated memory is still 183.5MB. Free memory was 128.6MB in the beginning and 153.2MB in the end (delta: -24.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-15 19:44:51,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.78ms. Allocated memory is still 183.5MB. Free memory was 153.2MB in the beginning and 151.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 19:44:51,459 INFO L158 Benchmark]: Boogie Preprocessor took 31.77ms. Allocated memory is still 183.5MB. Free memory was 151.1MB in the beginning and 149.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 19:44:51,459 INFO L158 Benchmark]: RCFGBuilder took 341.16ms. Allocated memory is still 183.5MB. Free memory was 149.9MB in the beginning and 134.8MB in the end (delta: 15.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-03-15 19:44:51,459 INFO L158 Benchmark]: TraceAbstraction took 768457.71ms. Allocated memory was 183.5MB in the beginning and 453.0MB in the end (delta: 269.5MB). Free memory was 134.3MB in the beginning and 380.2MB in the end (delta: -245.9MB). Peak memory consumption was 263.8MB. Max. memory is 8.0GB. [2022-03-15 19:44:51,462 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory is still 145.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 264.90ms. Allocated memory is still 183.5MB. Free memory was 128.6MB in the beginning and 153.2MB in the end (delta: -24.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.78ms. Allocated memory is still 183.5MB. Free memory was 153.2MB in the beginning and 151.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.77ms. Allocated memory is still 183.5MB. Free memory was 151.1MB in the beginning and 149.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 341.16ms. Allocated memory is still 183.5MB. Free memory was 149.9MB in the beginning and 134.8MB in the end (delta: 15.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 768457.71ms. Allocated memory was 183.5MB in the beginning and 453.0MB in the end (delta: 269.5MB). Free memory was 134.3MB in the beginning and 380.2MB in the end (delta: -245.9MB). Peak memory consumption was 263.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 158 PlacesBefore, 34 PlacesAfterwards, 160 TransitionsBefore, 28 TransitionsAfterwards, 1728 CoEnabledTransitionPairs, 8 FixpointIterations, 91 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 6 ConcurrentYvCompositions, 8 ChoiceCompositions, 151 TotalNumberOfCompositions, 1924 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1777, positive: 1743, positive conditional: 0, positive unconditional: 1743, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 906, positive: 899, positive conditional: 0, positive unconditional: 899, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1777, positive: 844, positive conditional: 0, positive unconditional: 844, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 906, unknown conditional: 0, unknown unconditional: 906] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 24 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ∧-19-3-2-3-1 context. - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 24 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ∧-19-3-2-3-1 context. - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 24 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ∧-19-3-2-3-1 context. - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 24 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ∧-19-3-2-3-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 185 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 768.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 334 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 334 mSDsluCounter, 112 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 473 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 868 IncrementalHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 32 mSDtfsCounter, 868 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 673 GetRequests, 598 SyntacticMatches, 19 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=313occurred in iteration=3, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 252 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 777 SizeOfPredicates, 11 NumberOfNonLiveVariables, 434 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 11/15 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown