/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/parallel-ticket-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 19:02:44,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 19:02:44,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 19:02:44,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 19:02:44,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 19:02:44,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 19:02:44,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 19:02:44,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 19:02:44,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 19:02:44,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 19:02:44,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 19:02:44,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 19:02:44,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 19:02:44,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 19:02:44,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 19:02:44,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 19:02:44,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 19:02:44,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 19:02:44,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 19:02:44,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 19:02:44,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 19:02:44,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 19:02:44,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 19:02:44,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 19:02:44,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 19:02:44,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 19:02:44,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 19:02:44,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 19:02:44,765 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 19:02:44,786 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 19:02:44,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 19:02:44,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 19:02:44,788 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 19:02:44,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 19:02:44,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 19:02:44,788 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 19:02:44,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 19:02:44,789 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 19:02:44,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 19:02:44,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 19:02:44,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 19:02:44,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 19:02:44,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 19:02:44,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 19:02:44,790 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 19:02:44,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 19:02:44,790 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 19:02:44,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 19:02:44,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 19:02:44,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 19:02:44,791 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 19:02:44,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 19:02:44,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 19:02:44,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 19:02:44,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 19:02:44,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 19:02:44,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 19:02:44,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 19:02:44,793 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 19:02:44,793 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 19:02:44,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 19:02:44,793 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 19:02:44,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 19:02:45,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 19:02:45,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 19:02:45,010 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 19:02:45,011 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 19:02:45,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2022-03-15 19:02:45,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87d947d36/a0af99208cf3485fafb1a132bd9ec314/FLAG4f216e6be [2022-03-15 19:02:45,439 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 19:02:45,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2022-03-15 19:02:45,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87d947d36/a0af99208cf3485fafb1a132bd9ec314/FLAG4f216e6be [2022-03-15 19:02:45,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87d947d36/a0af99208cf3485fafb1a132bd9ec314 [2022-03-15 19:02:45,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 19:02:45,459 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 19:02:45,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 19:02:45,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 19:02:45,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 19:02:45,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 07:02:45" (1/1) ... [2022-03-15 19:02:45,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16744d04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:02:45, skipping insertion in model container [2022-03-15 19:02:45,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 07:02:45" (1/1) ... [2022-03-15 19:02:45,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 19:02:45,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 19:02:45,644 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/parallel-ticket-3.wvr.c[3089,3102] [2022-03-15 19:02:45,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 19:02:45,652 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 19:02:45,671 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/parallel-ticket-3.wvr.c[3089,3102] [2022-03-15 19:02:45,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 19:02:45,683 INFO L208 MainTranslator]: Completed translation [2022-03-15 19:02:45,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:02:45 WrapperNode [2022-03-15 19:02:45,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 19:02:45,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 19:02:45,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 19:02:45,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 19:02:45,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:02:45" (1/1) ... [2022-03-15 19:02:45,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:02:45" (1/1) ... [2022-03-15 19:02:45,732 INFO L137 Inliner]: procedures = 22, calls = 55, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 158 [2022-03-15 19:02:45,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 19:02:45,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 19:02:45,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 19:02:45,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 19:02:45,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:02:45" (1/1) ... [2022-03-15 19:02:45,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:02:45" (1/1) ... [2022-03-15 19:02:45,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:02:45" (1/1) ... [2022-03-15 19:02:45,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:02:45" (1/1) ... [2022-03-15 19:02:45,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:02:45" (1/1) ... [2022-03-15 19:02:45,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:02:45" (1/1) ... [2022-03-15 19:02:45,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:02:45" (1/1) ... [2022-03-15 19:02:45,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 19:02:45,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 19:02:45,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 19:02:45,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 19:02:45,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:02:45" (1/1) ... [2022-03-15 19:02:45,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 19:02:45,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:02:45,804 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 19:02:45,818 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 19:02:45,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 19:02:45,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 19:02:45,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 19:02:45,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 19:02:45,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 19:02:45,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 19:02:45,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 19:02:45,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 19:02:45,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 19:02:45,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 19:02:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 19:02:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 19:02:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 19:02:45,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 19:02:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 19:02:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 19:02:45,851 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 19:02:45,918 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 19:02:45,919 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 19:02:46,130 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 19:02:46,195 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 19:02:46,195 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 19:02:46,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 07:02:46 BoogieIcfgContainer [2022-03-15 19:02:46,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 19:02:46,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 19:02:46,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 19:02:46,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 19:02:46,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 07:02:45" (1/3) ... [2022-03-15 19:02:46,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600bc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 07:02:46, skipping insertion in model container [2022-03-15 19:02:46,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:02:45" (2/3) ... [2022-03-15 19:02:46,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600bc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 07:02:46, skipping insertion in model container [2022-03-15 19:02:46,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 07:02:46" (3/3) ... [2022-03-15 19:02:46,204 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2022-03-15 19:02:46,208 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 19:02:46,208 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 19:02:46,208 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 19:02:46,208 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 19:02:46,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,262 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,262 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,262 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,268 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,268 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,268 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,268 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,269 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,269 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,269 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,270 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,270 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,270 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,270 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,270 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,274 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,274 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,274 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,275 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,275 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,275 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,279 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,280 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,280 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,280 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,280 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,280 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:02:46,289 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-15 19:02:46,326 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 19:02:46,330 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 19:02:46,330 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 19:02:46,340 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 19:02:46,346 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 119 transitions, 262 flow [2022-03-15 19:02:46,348 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 119 transitions, 262 flow [2022-03-15 19:02:46,349 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 119 transitions, 262 flow [2022-03-15 19:02:46,397 INFO L129 PetriNetUnfolder]: 2/116 cut-off events. [2022-03-15 19:02:46,398 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-03-15 19:02:46,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 116 events. 2/116 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2022-03-15 19:02:46,402 INFO L116 LiptonReduction]: Number of co-enabled transitions 702 [2022-03-15 19:02:49,688 INFO L131 LiptonReduction]: Checked pairs total: 3946 [2022-03-15 19:02:49,688 INFO L133 LiptonReduction]: Total number of compositions: 101 [2022-03-15 19:02:49,695 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 30 transitions, 84 flow [2022-03-15 19:02:49,742 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 436 states, 435 states have (on average 2.786206896551724) internal successors, (1212), 435 states have internal predecessors, (1212), 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 19:02:49,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 436 states, 435 states have (on average 2.786206896551724) internal successors, (1212), 435 states have internal predecessors, (1212), 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 19:02:49,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 19:02:49,758 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:02:49,759 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:02:49,759 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 19:02:49,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:02:49,764 INFO L85 PathProgramCache]: Analyzing trace with hash 586167284, now seen corresponding path program 1 times [2022-03-15 19:02:49,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:02:49,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809130210] [2022-03-15 19:02:49,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:02:49,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:02:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:02:50,075 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 19:02:50,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:02:50,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809130210] [2022-03-15 19:02:50,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809130210] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:02:50,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:02:50,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 19:02:50,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [996720064] [2022-03-15 19:02:50,084 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:02:50,094 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:02:50,131 INFO L252 McrAutomatonBuilder]: Finished intersection with 96 states and 186 transitions. [2022-03-15 19:02:50,131 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:02:50,753 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [1009#(or (< ~s~0 ~m1~0) (<= (+ ~s~0 1) ~m3~0)), 1011#(<= ~s~0 ~t~0), 1010#(or (<= (+ ~s~0 1) ~t~0) (< ~s~0 ~m1~0)), 1008#(< ~s~0 ~m1~0)] [2022-03-15 19:02:50,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 19:02:50,754 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:02:50,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 19:02:50,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-15 19:02:50,772 INFO L87 Difference]: Start difference. First operand has 436 states, 435 states have (on average 2.786206896551724) internal successors, (1212), 435 states have internal predecessors, (1212), 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 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 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 19:02:51,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:02:51,022 INFO L93 Difference]: Finished difference Result 700 states and 1663 transitions. [2022-03-15 19:02:51,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 19:02:51,028 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 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 26 [2022-03-15 19:02:51,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:02:51,040 INFO L225 Difference]: With dead ends: 700 [2022-03-15 19:02:51,041 INFO L226 Difference]: Without dead ends: 700 [2022-03-15 19:02:51,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-03-15 19:02:51,044 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 76 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 19:02:51,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 57 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 19:02:51,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-03-15 19:02:51,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 498. [2022-03-15 19:02:51,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 497 states have (on average 2.4728370221327967) internal successors, (1229), 497 states have internal predecessors, (1229), 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 19:02:51,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 1229 transitions. [2022-03-15 19:02:51,105 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 1229 transitions. Word has length 26 [2022-03-15 19:02:51,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:02:51,106 INFO L470 AbstractCegarLoop]: Abstraction has 498 states and 1229 transitions. [2022-03-15 19:02:51,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 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 19:02:51,107 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 1229 transitions. [2022-03-15 19:02:51,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 19:02:51,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:02:51,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:02:51,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 19:02:51,111 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 19:02:51,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:02:51,112 INFO L85 PathProgramCache]: Analyzing trace with hash -128088812, now seen corresponding path program 2 times [2022-03-15 19:02:51,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:02:51,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989599413] [2022-03-15 19:02:51,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:02:51,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:02:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:02:51,305 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 19:02:51,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:02:51,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989599413] [2022-03-15 19:02:51,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989599413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:02:51,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:02:51,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 19:02:51,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [498883815] [2022-03-15 19:02:51,306 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:02:51,310 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:02:51,348 INFO L252 McrAutomatonBuilder]: Finished intersection with 104 states and 197 transitions. [2022-03-15 19:02:51,348 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:02:52,273 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2721#(and (not (= ~x~0 1)) (= (mod ~b~0 256) 0))] [2022-03-15 19:02:52,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 19:02:52,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:02:52,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 19:02:52,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 19:02:52,275 INFO L87 Difference]: Start difference. First operand 498 states and 1229 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 19:02:52,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:02:52,402 INFO L93 Difference]: Finished difference Result 676 states and 1603 transitions. [2022-03-15 19:02:52,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 19:02:52,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 26 [2022-03-15 19:02:52,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:02:52,404 INFO L225 Difference]: With dead ends: 676 [2022-03-15 19:02:52,405 INFO L226 Difference]: Without dead ends: 314 [2022-03-15 19:02:52,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 32 SyntacticMatches, 45 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-03-15 19:02:52,406 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 37 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:02:52,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 4 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:02:52,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-03-15 19:02:52,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2022-03-15 19:02:52,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 2.357827476038339) internal successors, (738), 313 states have internal predecessors, (738), 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 19:02:52,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 738 transitions. [2022-03-15 19:02:52,418 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 738 transitions. Word has length 26 [2022-03-15 19:02:52,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:02:52,419 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 738 transitions. [2022-03-15 19:02:52,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 19:02:52,419 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 738 transitions. [2022-03-15 19:02:52,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 19:02:52,421 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:02:52,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:02:52,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 19:02:52,421 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 19:02:52,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:02:52,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1844403722, now seen corresponding path program 3 times [2022-03-15 19:02:52,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:02:52,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114371649] [2022-03-15 19:02:52,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:02:52,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:02:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:02:52,552 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 19:02:52,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:02:52,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114371649] [2022-03-15 19:02:52,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114371649] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:02:52,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:02:52,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 19:02:52,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1810041596] [2022-03-15 19:02:52,553 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:02:52,557 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:02:52,569 INFO L252 McrAutomatonBuilder]: Finished intersection with 72 states and 122 transitions. [2022-03-15 19:02:52,569 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:02:53,078 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 5 new interpolants: [4035#(< ~s~0 ~m1~0), 4037#(and (or (<= 2 ~t~0) (< ~s~0 ~m1~0)) (or (< ~s~0 ~m1~0) (= ~s~0 0))), 4039#(and (or (<= 0 ~t~0) (< ~s~0 ~t~0)) (or (< ~s~0 ~t~0) (= ~s~0 0))), 4038#(and (or (< ~s~0 ~m1~0) (<= 1 ~t~0)) (or (< ~s~0 ~m1~0) (= ~s~0 0))), 4036#(and (or (< ~s~0 ~m1~0) (<= 2 ~m2~0)) (or (< ~s~0 ~m1~0) (= ~s~0 0)))] [2022-03-15 19:02:53,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 19:02:53,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:02:53,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 19:02:53,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-03-15 19:02:53,079 INFO L87 Difference]: Start difference. First operand 314 states and 738 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 11 states have internal predecessors, (53), 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 19:02:53,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:02:53,343 INFO L93 Difference]: Finished difference Result 380 states and 863 transitions. [2022-03-15 19:02:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 19:02:53,344 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 11 states have internal predecessors, (53), 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 26 [2022-03-15 19:02:53,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:02:53,346 INFO L225 Difference]: With dead ends: 380 [2022-03-15 19:02:53,346 INFO L226 Difference]: Without dead ends: 368 [2022-03-15 19:02:53,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-03-15 19:02:53,348 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 71 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 19:02:53,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 62 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 19:02:53,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-03-15 19:02:53,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 314. [2022-03-15 19:02:53,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 2.3258785942492013) internal successors, (728), 313 states have internal predecessors, (728), 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 19:02:53,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 728 transitions. [2022-03-15 19:02:53,360 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 728 transitions. Word has length 26 [2022-03-15 19:02:53,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:02:53,360 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 728 transitions. [2022-03-15 19:02:53,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 11 states have internal predecessors, (53), 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 19:02:53,361 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 728 transitions. [2022-03-15 19:02:53,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 19:02:53,362 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:02:53,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:02:53,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 19:02:53,367 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 19:02:53,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:02:53,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1068017750, now seen corresponding path program 4 times [2022-03-15 19:02:53,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:02:53,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37847048] [2022-03-15 19:02:53,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:02:53,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:02:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:02:53,502 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 19:02:53,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:02:53,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37847048] [2022-03-15 19:02:53,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37847048] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:02:53,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:02:53,503 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 19:02:53,503 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [961897854] [2022-03-15 19:02:53,503 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:02:53,507 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:02:53,524 INFO L252 McrAutomatonBuilder]: Finished intersection with 104 states and 204 transitions. [2022-03-15 19:02:53,525 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:02:54,393 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 6 new interpolants: [5065#(< ~s~0 ~m1~0), 5067#(and (or (< ~s~0 ~m1~0) (<= 1 ~t~0)) (or (< ~s~0 ~m1~0) (= ~s~0 0))), 5068#(and (or (< ~s~0 ~m1~0) (= |ULTIMATE.start_main_~#t1~0#1.offset| 0)) (or (< ~s~0 ~m1~0) (<= 1 ~t~0)) (or (< ~s~0 ~m1~0) (= ~s~0 0))), 5069#(and (or (<= 0 ~t~0) (< ~s~0 ~t~0)) (or (< ~s~0 ~t~0) (= ~s~0 0))), 5070#(and (or (< ~s~0 ~t~0) (= |ULTIMATE.start_main_~#t1~0#1.offset| 0)) (or (<= 0 ~t~0) (< ~s~0 ~t~0)) (or (< ~s~0 ~t~0) (= ~s~0 0))), 5066#(and (or (< ~s~0 ~m1~0) (< ~s~0 ~m2~0)) (or (< ~s~0 ~m1~0) (= ~s~0 0)))] [2022-03-15 19:02:54,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 19:02:54,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:02:54,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 19:02:54,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-03-15 19:02:54,395 INFO L87 Difference]: Start difference. First operand 314 states and 728 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 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 19:02:54,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:02:54,583 INFO L93 Difference]: Finished difference Result 192 states and 393 transitions. [2022-03-15 19:02:54,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 19:02:54,584 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 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 26 [2022-03-15 19:02:54,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:02:54,585 INFO L225 Difference]: With dead ends: 192 [2022-03-15 19:02:54,585 INFO L226 Difference]: Without dead ends: 156 [2022-03-15 19:02:54,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2022-03-15 19:02:54,586 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 67 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:02:54,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 47 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:02:54,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-03-15 19:02:54,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 150. [2022-03-15 19:02:54,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 149 states have (on average 2.0738255033557045) internal successors, (309), 149 states have internal predecessors, (309), 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 19:02:54,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 309 transitions. [2022-03-15 19:02:54,593 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 309 transitions. Word has length 26 [2022-03-15 19:02:54,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:02:54,593 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 309 transitions. [2022-03-15 19:02:54,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 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 19:02:54,594 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 309 transitions. [2022-03-15 19:02:54,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 19:02:54,594 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:02:54,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:02:54,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 19:02:54,595 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 19:02:54,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:02:54,598 INFO L85 PathProgramCache]: Analyzing trace with hash -932721674, now seen corresponding path program 5 times [2022-03-15 19:02:54,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:02:54,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387402426] [2022-03-15 19:02:54,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:02:54,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:02:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:02:54,757 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 19:02:54,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:02:54,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387402426] [2022-03-15 19:02:54,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387402426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:02:54,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:02:54,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 19:02:54,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1425827044] [2022-03-15 19:02:54,758 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:02:54,761 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:02:54,770 INFO L252 McrAutomatonBuilder]: Finished intersection with 62 states and 106 transitions. [2022-03-15 19:02:54,771 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:02:55,033 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [5582#(or (<= (+ 2 ~s~0) ~t~0) (< ~s~0 ~m3~0)), 5581#(or (< ~s~0 ~m3~0) (<= (+ 2 ~s~0) ~m2~0)), 5579#(<= (+ 2 ~s~0) ~m2~0), 5580#(<= (+ 2 ~s~0) ~t~0)] [2022-03-15 19:02:55,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 19:02:55,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:02:55,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 19:02:55,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-15 19:02:55,035 INFO L87 Difference]: Start difference. First operand 150 states and 309 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:02:55,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:02:55,276 INFO L93 Difference]: Finished difference Result 248 states and 476 transitions. [2022-03-15 19:02:55,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 19:02:55,276 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 19:02:55,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:02:55,277 INFO L225 Difference]: With dead ends: 248 [2022-03-15 19:02:55,277 INFO L226 Difference]: Without dead ends: 216 [2022-03-15 19:02:55,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2022-03-15 19:02:55,279 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 65 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 19:02:55,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 69 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 19:02:55,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-03-15 19:02:55,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 136. [2022-03-15 19:02:55,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 2.0) internal successors, (270), 135 states have internal predecessors, (270), 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 19:02:55,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 270 transitions. [2022-03-15 19:02:55,283 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 270 transitions. Word has length 26 [2022-03-15 19:02:55,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:02:55,284 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 270 transitions. [2022-03-15 19:02:55,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:02:55,284 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 270 transitions. [2022-03-15 19:02:55,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 19:02:55,284 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:02:55,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:02:55,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 19:02:55,285 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 19:02:55,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:02:55,285 INFO L85 PathProgramCache]: Analyzing trace with hash 663576080, now seen corresponding path program 6 times [2022-03-15 19:02:55,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:02:55,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328853494] [2022-03-15 19:02:55,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:02:55,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:02:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:02:55,365 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 19:02:55,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:02:55,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328853494] [2022-03-15 19:02:55,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328853494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:02:55,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:02:55,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 19:02:55,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [574383322] [2022-03-15 19:02:55,367 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:02:55,370 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:02:55,379 INFO L252 McrAutomatonBuilder]: Finished intersection with 60 states and 101 transitions. [2022-03-15 19:02:55,379 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:02:55,681 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [6127#(and (or (< ~s~0 ~m3~0) (= ~s~0 0)) (or (<= 2 ~t~0) (< ~s~0 ~m3~0))), 6128#(<= ~s~0 ~t~0), 6125#(<= (+ 2 ~s~0) ~m1~0), 6126#(or (<= (+ 2 ~s~0) ~m1~0) (< ~s~0 ~m3~0))] [2022-03-15 19:02:55,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 19:02:55,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:02:55,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 19:02:55,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-03-15 19:02:55,682 INFO L87 Difference]: Start difference. First operand 136 states and 270 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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 19:02:55,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:02:55,954 INFO L93 Difference]: Finished difference Result 164 states and 302 transitions. [2022-03-15 19:02:55,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 19:02:55,955 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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 26 [2022-03-15 19:02:55,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:02:55,956 INFO L225 Difference]: With dead ends: 164 [2022-03-15 19:02:55,956 INFO L226 Difference]: Without dead ends: 116 [2022-03-15 19:02:55,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2022-03-15 19:02:55,957 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 86 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 19:02:55,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 69 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 19:02:55,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-03-15 19:02:55,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 86. [2022-03-15 19:02:55,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.8588235294117648) internal successors, (158), 85 states have internal predecessors, (158), 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 19:02:55,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 158 transitions. [2022-03-15 19:02:55,960 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 158 transitions. Word has length 26 [2022-03-15 19:02:55,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:02:55,960 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 158 transitions. [2022-03-15 19:02:55,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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 19:02:55,961 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 158 transitions. [2022-03-15 19:02:55,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 19:02:55,961 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:02:55,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:02:55,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 19:02:55,962 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 19:02:55,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:02:55,962 INFO L85 PathProgramCache]: Analyzing trace with hash -569020020, now seen corresponding path program 7 times [2022-03-15 19:02:55,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:02:55,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704864448] [2022-03-15 19:02:55,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:02:55,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:02:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:02:56,096 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 19:02:56,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:02:56,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704864448] [2022-03-15 19:02:56,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704864448] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:02:56,096 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:02:56,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 19:02:56,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [88348816] [2022-03-15 19:02:56,097 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:02:56,101 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:02:56,113 INFO L252 McrAutomatonBuilder]: Finished intersection with 82 states and 153 transitions. [2022-03-15 19:02:56,113 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:02:56,623 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [6491#(and (< (+ ~s~0 1) ~t~0) (= ~s~0 0)), 6490#(< ~s~0 (+ ~t~0 1)), 6489#(< ~s~0 ~t~0), 6492#(and (< ~s~0 ~t~0) (= ~s~0 0))] [2022-03-15 19:02:56,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 19:02:56,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:02:56,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 19:02:56,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-03-15 19:02:56,624 INFO L87 Difference]: Start difference. First operand 86 states and 158 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 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 19:02:56,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:02:56,704 INFO L93 Difference]: Finished difference Result 58 states and 109 transitions. [2022-03-15 19:02:56,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 19:02:56,705 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 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 26 [2022-03-15 19:02:56,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:02:56,705 INFO L225 Difference]: With dead ends: 58 [2022-03-15 19:02:56,706 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 19:02:56,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-03-15 19:02:56,707 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 17 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:02:56,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 20 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:02:56,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 19:02:56,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 19:02:56,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:02:56,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 19:02:56,708 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2022-03-15 19:02:56,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:02:56,708 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 19:02:56,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 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 19:02:56,708 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 19:02:56,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 19:02:56,710 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-03-15 19:02:56,711 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-15 19:02:56,711 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-15 19:02:56,711 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-15 19:02:56,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 19:02:56,713 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-03-15 19:02:56,714 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 19:02:56,714 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 19:02:56,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 07:02:56 BasicIcfg [2022-03-15 19:02:56,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 19:02:56,717 INFO L158 Benchmark]: Toolchain (without parser) took 11258.39ms. Allocated memory was 189.8MB in the beginning and 352.3MB in the end (delta: 162.5MB). Free memory was 134.2MB in the beginning and 277.6MB in the end (delta: -143.3MB). Peak memory consumption was 19.4MB. Max. memory is 8.0GB. [2022-03-15 19:02:56,717 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 189.8MB. Free memory is still 151.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 19:02:56,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.28ms. Allocated memory was 189.8MB in the beginning and 244.3MB in the end (delta: 54.5MB). Free memory was 134.1MB in the beginning and 214.6MB in the end (delta: -80.5MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. [2022-03-15 19:02:56,718 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.47ms. Allocated memory is still 244.3MB. Free memory was 214.6MB in the beginning and 212.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 19:02:56,718 INFO L158 Benchmark]: Boogie Preprocessor took 32.28ms. Allocated memory is still 244.3MB. Free memory was 212.1MB in the beginning and 211.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 19:02:56,718 INFO L158 Benchmark]: RCFGBuilder took 431.84ms. Allocated memory is still 244.3MB. Free memory was 210.9MB in the beginning and 193.7MB in the end (delta: 17.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-03-15 19:02:56,718 INFO L158 Benchmark]: TraceAbstraction took 10517.86ms. Allocated memory was 244.3MB in the beginning and 352.3MB in the end (delta: 108.0MB). Free memory was 193.0MB in the beginning and 277.6MB in the end (delta: -84.5MB). Peak memory consumption was 24.5MB. Max. memory is 8.0GB. [2022-03-15 19:02:56,720 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 189.8MB. Free memory is still 151.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 224.28ms. Allocated memory was 189.8MB in the beginning and 244.3MB in the end (delta: 54.5MB). Free memory was 134.1MB in the beginning and 214.6MB in the end (delta: -80.5MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.47ms. Allocated memory is still 244.3MB. Free memory was 214.6MB in the beginning and 212.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.28ms. Allocated memory is still 244.3MB. Free memory was 212.1MB in the beginning and 211.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 431.84ms. Allocated memory is still 244.3MB. Free memory was 210.9MB in the beginning and 193.7MB in the end (delta: 17.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 10517.86ms. Allocated memory was 244.3MB in the beginning and 352.3MB in the end (delta: 108.0MB). Free memory was 193.0MB in the beginning and 277.6MB in the end (delta: -84.5MB). Peak memory consumption was 24.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 127 PlacesBefore, 40 PlacesAfterwards, 119 TransitionsBefore, 30 TransitionsAfterwards, 702 CoEnabledTransitionPairs, 8 FixpointIterations, 77 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 101 TotalNumberOfCompositions, 3946 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1734, positive: 1533, positive conditional: 0, positive unconditional: 1533, negative: 201, negative conditional: 0, negative unconditional: 201, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 339, positive: 324, positive conditional: 0, positive unconditional: 324, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1734, positive: 1209, positive conditional: 0, positive unconditional: 1209, negative: 186, negative conditional: 0, negative unconditional: 186, unknown: 339, unknown conditional: 0, unknown unconditional: 339] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 124]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 143 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 10.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 419 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 419 mSDsluCounter, 328 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 994 mSDsCounter, 165 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1786 IncrementalHoareTripleChecker+Invalid, 1951 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 165 mSolverCounterUnsat, 64 mSDtfsCounter, 1786 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 467 GetRequests, 314 SyntacticMatches, 59 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=498occurred in iteration=1, InterpolantAutomatonStates: 73, 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, 7 MinimizatonAttempts, 372 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 175 ConstructedInterpolants, 0 QuantifiedInterpolants, 990 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 19:02:56,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...