/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread/stack-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 16:09:00,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 16:09:00,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 16:09:00,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 16:09:00,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 16:09:00,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 16:09:00,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 16:09:00,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 16:09:00,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 16:09:00,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 16:09:00,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 16:09:00,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 16:09:00,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 16:09:00,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 16:09:00,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 16:09:00,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 16:09:00,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 16:09:00,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 16:09:00,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 16:09:00,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 16:09:00,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 16:09:00,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 16:09:00,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 16:09:00,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 16:09:00,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 16:09:00,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 16:09:00,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 16:09:00,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 16:09:00,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 16:09:00,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 16:09:00,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 16:09:00,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 16:09:00,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 16:09:00,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 16:09:00,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 16:09:00,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 16:09:00,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 16:09:00,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 16:09:00,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 16:09:00,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 16:09:00,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 16:09:00,648 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf [2020-04-18 16:09:00,668 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 16:09:00,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 16:09:00,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 16:09:00,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 16:09:00,670 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 16:09:00,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 16:09:00,671 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 16:09:00,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 16:09:00,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 16:09:00,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 16:09:00,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 16:09:00,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 16:09:00,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 16:09:00,672 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 16:09:00,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 16:09:00,672 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 16:09:00,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 16:09:00,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 16:09:00,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 16:09:00,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 16:09:00,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 16:09:00,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 16:09:00,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 16:09:00,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 16:09:00,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 16:09:00,676 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 16:09:00,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 16:09:00,676 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 16:09:00,676 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 16:09:00,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 16:09:00,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 16:09:00,926 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 16:09:00,945 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 16:09:00,949 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 16:09:00,950 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 16:09:00,951 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 16:09:00,952 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack-2.i [2020-04-18 16:09:01,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78c0d5c93/42d764b31a9d4d58a55cbdc04cbc853b/FLAG739710284 [2020-04-18 16:09:01,602 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 16:09:01,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-2.i [2020-04-18 16:09:01,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78c0d5c93/42d764b31a9d4d58a55cbdc04cbc853b/FLAG739710284 [2020-04-18 16:09:01,888 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78c0d5c93/42d764b31a9d4d58a55cbdc04cbc853b [2020-04-18 16:09:01,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 16:09:01,917 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 16:09:01,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 16:09:01,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 16:09:01,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 16:09:01,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:09:01" (1/1) ... [2020-04-18 16:09:01,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1841151d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:01, skipping insertion in model container [2020-04-18 16:09:01,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:09:01" (1/1) ... [2020-04-18 16:09:01,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 16:09:01,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 16:09:02,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:09:02,580 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 16:09:02,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:09:02,825 INFO L208 MainTranslator]: Completed translation [2020-04-18 16:09:02,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:02 WrapperNode [2020-04-18 16:09:02,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 16:09:02,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 16:09:02,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 16:09:02,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 16:09:02,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:02" (1/1) ... [2020-04-18 16:09:02,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:02" (1/1) ... [2020-04-18 16:09:02,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 16:09:02,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 16:09:02,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 16:09:02,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 16:09:02,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:02" (1/1) ... [2020-04-18 16:09:02,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:02" (1/1) ... [2020-04-18 16:09:02,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:02" (1/1) ... [2020-04-18 16:09:02,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:02" (1/1) ... [2020-04-18 16:09:02,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:02" (1/1) ... [2020-04-18 16:09:02,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:02" (1/1) ... [2020-04-18 16:09:02,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:02" (1/1) ... [2020-04-18 16:09:02,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 16:09:02,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 16:09:02,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 16:09:02,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 16:09:02,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 16:09:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-04-18 16:09:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-04-18 16:09:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-04-18 16:09:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-04-18 16:09:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 16:09:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 16:09:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 16:09:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 16:09:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-18 16:09:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 16:09:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 16:09:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 16:09:02,997 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 16:09:03,539 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 16:09:03,539 INFO L295 CfgBuilder]: Removed 26 assume(true) statements. [2020-04-18 16:09:03,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:09:03 BoogieIcfgContainer [2020-04-18 16:09:03,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 16:09:03,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 16:09:03,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 16:09:03,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 16:09:03,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:09:01" (1/3) ... [2020-04-18 16:09:03,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4001a59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:09:03, skipping insertion in model container [2020-04-18 16:09:03,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:02" (2/3) ... [2020-04-18 16:09:03,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4001a59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:09:03, skipping insertion in model container [2020-04-18 16:09:03,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:09:03" (3/3) ... [2020-04-18 16:09:03,551 INFO L109 eAbstractionObserver]: Analyzing ICFG stack-2.i [2020-04-18 16:09:03,559 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 16:09:03,559 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 16:09:03,565 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-18 16:09:03,566 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 16:09:03,612 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,613 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,613 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,613 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,614 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,614 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,614 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,614 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,614 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,615 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,615 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,615 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,615 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,616 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,616 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,616 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,616 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,616 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,617 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,617 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,617 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,617 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,620 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,620 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,621 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,621 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,621 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,622 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,622 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,622 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,622 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,622 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,623 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,623 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,623 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,623 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,624 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,624 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,624 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,626 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,626 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,626 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,627 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,627 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,627 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,628 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,628 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,628 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,628 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,628 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,629 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,629 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,629 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,629 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,629 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,629 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,630 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,630 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,631 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,631 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,631 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,631 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,632 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,632 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,632 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,632 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,633 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,633 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,638 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,639 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,639 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,639 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,639 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,639 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,640 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,641 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,641 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,641 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,641 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,642 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,643 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,643 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,643 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,643 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,644 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,644 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,645 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,645 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,645 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,646 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,646 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,646 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,646 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,647 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,647 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,647 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,647 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,647 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,647 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,648 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,651 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,652 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,655 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,655 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,656 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,659 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,666 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,666 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,666 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,666 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,666 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,667 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,667 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,667 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,667 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,668 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,668 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,668 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,669 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,669 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,669 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,670 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,670 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,670 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,670 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,671 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,671 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,671 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,671 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,671 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,671 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,672 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,672 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,681 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,681 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,682 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,682 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,682 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,682 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,682 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,683 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,683 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,683 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,683 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,683 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,683 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,684 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,684 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,684 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,684 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,684 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,685 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,685 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,685 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,685 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,685 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,694 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,694 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,694 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,695 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,695 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,695 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,695 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,695 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,696 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,696 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,696 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,696 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,696 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,696 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,698 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,698 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,699 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,699 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,699 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:03,722 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-18 16:09:03,745 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 16:09:03,745 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 16:09:03,746 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 16:09:03,746 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 16:09:03,746 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 16:09:03,746 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 16:09:03,746 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 16:09:03,746 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 16:09:03,768 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 144 places, 149 transitions, 320 flow [2020-04-18 16:09:04,064 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 7085 states. [2020-04-18 16:09:04,066 INFO L276 IsEmpty]: Start isEmpty. Operand 7085 states. [2020-04-18 16:09:04,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-04-18 16:09:04,102 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:04,103 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:04,103 INFO L427 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:04,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:04,110 INFO L82 PathProgramCache]: Analyzing trace with hash 290822711, now seen corresponding path program 1 times [2020-04-18 16:09:04,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:04,119 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [7154364] [2020-04-18 16:09:04,139 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:04,156 INFO L259 McrAutomatonBuilder]: Finished intersection with 53 states and 52 transitions. [2020-04-18 16:09:04,159 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-04-18 16:09:04,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-04-18 16:09:04,160 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:04,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:04,161 INFO L82 PathProgramCache]: Analyzing trace with hash 290822711, now seen corresponding path program 2 times [2020-04-18 16:09:04,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:04,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839807694] [2020-04-18 16:09:04,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:04,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:04,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839807694] [2020-04-18 16:09:04,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:04,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:09:04,552 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:04,566 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:04,584 INFO L259 McrAutomatonBuilder]: Finished intersection with 53 states and 52 transitions. [2020-04-18 16:09:04,585 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:04,596 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:09:04,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:09:04,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:09:04,603 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 3 states. [2020-04-18 16:09:04,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:04,609 INFO L93 Difference]: Finished difference Result 53 states and 52 transitions. [2020-04-18 16:09:04,609 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 52 transitions. [2020-04-18 16:09:04,610 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:04,611 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [7154364] [2020-04-18 16:09:04,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:04,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:09:04,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [7154364] [2020-04-18 16:09:04,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:09:04,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:04,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:09:04,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:09:04,619 INFO L87 Difference]: Start difference. First operand 7085 states. Second operand 3 states. [2020-04-18 16:09:04,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:04,815 INFO L93 Difference]: Finished difference Result 10901 states and 29156 transitions. [2020-04-18 16:09:04,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:09:04,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-04-18 16:09:04,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:04,924 INFO L225 Difference]: With dead ends: 10901 [2020-04-18 16:09:04,924 INFO L226 Difference]: Without dead ends: 10769 [2020-04-18 16:09:04,927 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:09:05,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10769 states. [2020-04-18 16:09:05,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10769 to 9194. [2020-04-18 16:09:05,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9194 states. [2020-04-18 16:09:05,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9194 states to 9194 states and 24898 transitions. [2020-04-18 16:09:05,516 INFO L78 Accepts]: Start accepts. Automaton has 9194 states and 24898 transitions. Word has length 52 [2020-04-18 16:09:05,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:05,518 INFO L479 AbstractCegarLoop]: Abstraction has 9194 states and 24898 transitions. [2020-04-18 16:09:05,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:09:05,518 INFO L276 IsEmpty]: Start isEmpty. Operand 9194 states and 24898 transitions. [2020-04-18 16:09:05,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-04-18 16:09:05,527 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:05,527 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:05,527 INFO L427 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:05,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:05,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1656084646, now seen corresponding path program 1 times [2020-04-18 16:09:05,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:05,529 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1147994463] [2020-04-18 16:09:05,531 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:05,533 INFO L259 McrAutomatonBuilder]: Finished intersection with 54 states and 53 transitions. [2020-04-18 16:09:05,536 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2020-04-18 16:09:05,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-04-18 16:09:05,536 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:05,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:05,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1656084646, now seen corresponding path program 2 times [2020-04-18 16:09:05,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:05,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049750172] [2020-04-18 16:09:05,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:05,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:05,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049750172] [2020-04-18 16:09:05,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:05,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:09:05,665 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:05,674 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:05,685 INFO L259 McrAutomatonBuilder]: Finished intersection with 54 states and 53 transitions. [2020-04-18 16:09:05,686 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:05,692 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:09:05,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:09:05,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:09:05,693 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2020-04-18 16:09:05,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:05,694 INFO L93 Difference]: Finished difference Result 54 states and 53 transitions. [2020-04-18 16:09:05,695 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 53 transitions. [2020-04-18 16:09:05,697 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:05,698 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1147994463] [2020-04-18 16:09:05,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:05,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:09:05,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1147994463] [2020-04-18 16:09:05,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:09:05,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:05,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:09:05,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:09:05,700 INFO L87 Difference]: Start difference. First operand 9194 states and 24898 transitions. Second operand 3 states. [2020-04-18 16:09:05,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:05,831 INFO L93 Difference]: Finished difference Result 8444 states and 22452 transitions. [2020-04-18 16:09:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:09:05,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-04-18 16:09:05,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:05,894 INFO L225 Difference]: With dead ends: 8444 [2020-04-18 16:09:05,894 INFO L226 Difference]: Without dead ends: 8267 [2020-04-18 16:09:05,895 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:09:05,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2020-04-18 16:09:06,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 8039. [2020-04-18 16:09:06,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8039 states. [2020-04-18 16:09:06,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8039 states to 8039 states and 21497 transitions. [2020-04-18 16:09:06,191 INFO L78 Accepts]: Start accepts. Automaton has 8039 states and 21497 transitions. Word has length 53 [2020-04-18 16:09:06,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:06,192 INFO L479 AbstractCegarLoop]: Abstraction has 8039 states and 21497 transitions. [2020-04-18 16:09:06,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:09:06,193 INFO L276 IsEmpty]: Start isEmpty. Operand 8039 states and 21497 transitions. [2020-04-18 16:09:06,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-04-18 16:09:06,196 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:06,197 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:06,198 INFO L427 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:06,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:06,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1769673693, now seen corresponding path program 1 times [2020-04-18 16:09:06,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:06,199 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1428979037] [2020-04-18 16:09:06,201 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:06,203 INFO L259 McrAutomatonBuilder]: Finished intersection with 62 states and 61 transitions. [2020-04-18 16:09:06,203 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2020-04-18 16:09:06,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-04-18 16:09:06,204 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:06,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:06,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1769673693, now seen corresponding path program 2 times [2020-04-18 16:09:06,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:06,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46142561] [2020-04-18 16:09:06,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:06,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:06,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46142561] [2020-04-18 16:09:06,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:06,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 16:09:06,319 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:06,332 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:06,347 INFO L259 McrAutomatonBuilder]: Finished intersection with 62 states and 61 transitions. [2020-04-18 16:09:06,347 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:06,369 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:09:06,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:09:06,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 16:09:06,370 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 4 states. [2020-04-18 16:09:06,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:06,398 INFO L93 Difference]: Finished difference Result 62 states and 61 transitions. [2020-04-18 16:09:06,398 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 61 transitions. [2020-04-18 16:09:06,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:06,399 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1428979037] [2020-04-18 16:09:06,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:06,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 16:09:06,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1428979037] [2020-04-18 16:09:06,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 16:09:06,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:06,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:09:06,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 16:09:06,400 INFO L87 Difference]: Start difference. First operand 8039 states and 21497 transitions. Second operand 4 states. [2020-04-18 16:09:06,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:06,498 INFO L93 Difference]: Finished difference Result 11468 states and 30614 transitions. [2020-04-18 16:09:06,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 16:09:06,498 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2020-04-18 16:09:06,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:06,531 INFO L225 Difference]: With dead ends: 11468 [2020-04-18 16:09:06,531 INFO L226 Difference]: Without dead ends: 11468 [2020-04-18 16:09:06,532 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 16:09:06,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11468 states. [2020-04-18 16:09:06,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11468 to 8363. [2020-04-18 16:09:06,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8363 states. [2020-04-18 16:09:07,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8363 states to 8363 states and 22364 transitions. [2020-04-18 16:09:07,310 INFO L78 Accepts]: Start accepts. Automaton has 8363 states and 22364 transitions. Word has length 61 [2020-04-18 16:09:07,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:07,310 INFO L479 AbstractCegarLoop]: Abstraction has 8363 states and 22364 transitions. [2020-04-18 16:09:07,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 16:09:07,310 INFO L276 IsEmpty]: Start isEmpty. Operand 8363 states and 22364 transitions. [2020-04-18 16:09:07,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-04-18 16:09:07,319 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:07,320 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:07,320 INFO L427 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:07,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:07,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1400796939, now seen corresponding path program 1 times [2020-04-18 16:09:07,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:07,321 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1772616115] [2020-04-18 16:09:07,325 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:07,326 INFO L259 McrAutomatonBuilder]: Finished intersection with 88 states and 87 transitions. [2020-04-18 16:09:07,327 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-04-18 16:09:07,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-04-18 16:09:07,328 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:07,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:07,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1400796939, now seen corresponding path program 2 times [2020-04-18 16:09:07,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:07,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724432778] [2020-04-18 16:09:07,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:07,428 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:07,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724432778] [2020-04-18 16:09:07,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244404111] [2020-04-18 16:09:07,429 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:09:07,562 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 16:09:07,563 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:09:07,565 INFO L264 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2020-04-18 16:09:07,577 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:09:07,668 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:07,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:09:07,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-04-18 16:09:07,670 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:07,698 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:07,723 INFO L259 McrAutomatonBuilder]: Finished intersection with 88 states and 87 transitions. [2020-04-18 16:09:07,723 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:07,757 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:09:07,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 16:09:07,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-04-18 16:09:07,758 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 7 states. [2020-04-18 16:09:07,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:07,786 INFO L93 Difference]: Finished difference Result 88 states and 87 transitions. [2020-04-18 16:09:07,786 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 87 transitions. [2020-04-18 16:09:07,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:07,787 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1772616115] [2020-04-18 16:09:07,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:07,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 16:09:07,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1772616115] [2020-04-18 16:09:07,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 16:09:07,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:07,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 16:09:07,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-04-18 16:09:07,789 INFO L87 Difference]: Start difference. First operand 8363 states and 22364 transitions. Second operand 7 states. [2020-04-18 16:09:07,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:07,906 INFO L93 Difference]: Finished difference Result 12353 states and 32934 transitions. [2020-04-18 16:09:07,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 16:09:07,907 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2020-04-18 16:09:07,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:07,939 INFO L225 Difference]: With dead ends: 12353 [2020-04-18 16:09:07,940 INFO L226 Difference]: Without dead ends: 12353 [2020-04-18 16:09:07,941 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-04-18 16:09:08,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12353 states. [2020-04-18 16:09:08,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12353 to 10778. [2020-04-18 16:09:08,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10778 states. [2020-04-18 16:09:08,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10778 states to 10778 states and 28972 transitions. [2020-04-18 16:09:08,263 INFO L78 Accepts]: Start accepts. Automaton has 10778 states and 28972 transitions. Word has length 87 [2020-04-18 16:09:08,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:08,263 INFO L479 AbstractCegarLoop]: Abstraction has 10778 states and 28972 transitions. [2020-04-18 16:09:08,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 16:09:08,264 INFO L276 IsEmpty]: Start isEmpty. Operand 10778 states and 28972 transitions. [2020-04-18 16:09:08,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-04-18 16:09:08,273 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:08,273 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:08,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:09:08,477 INFO L427 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:08,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:08,478 INFO L82 PathProgramCache]: Analyzing trace with hash 2034645144, now seen corresponding path program 1 times [2020-04-18 16:09:08,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:08,479 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [282228512] [2020-04-18 16:09:08,484 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:08,505 INFO L259 McrAutomatonBuilder]: Finished intersection with 1034 states and 1978 transitions. [2020-04-18 16:09:08,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states. [2020-04-18 16:09:08,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-04-18 16:09:08,513 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:08,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:08,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1908659606, now seen corresponding path program 2 times [2020-04-18 16:09:08,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:08,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710747065] [2020-04-18 16:09:08,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:08,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:08,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710747065] [2020-04-18 16:09:08,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:08,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:09:08,566 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:08,585 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:08,865 INFO L259 McrAutomatonBuilder]: Finished intersection with 456 states and 822 transitions. [2020-04-18 16:09:08,866 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:08,894 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 16:09:08,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 16:09:08,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 16:09:08,894 INFO L87 Difference]: Start difference. First operand 1034 states. Second operand 5 states. [2020-04-18 16:09:08,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:08,930 INFO L93 Difference]: Finished difference Result 1034 states and 1978 transitions. [2020-04-18 16:09:08,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1978 transitions. [2020-04-18 16:09:08,933 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:08,933 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [282228512] [2020-04-18 16:09:08,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:08,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:09:08,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [282228512] [2020-04-18 16:09:08,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 16:09:08,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:08,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 16:09:08,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-04-18 16:09:08,935 INFO L87 Difference]: Start difference. First operand 10778 states and 28972 transitions. Second operand 5 states. [2020-04-18 16:09:09,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:09,037 INFO L93 Difference]: Finished difference Result 7271 states and 18390 transitions. [2020-04-18 16:09:09,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 16:09:09,038 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2020-04-18 16:09:09,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:09,054 INFO L225 Difference]: With dead ends: 7271 [2020-04-18 16:09:09,054 INFO L226 Difference]: Without dead ends: 7073 [2020-04-18 16:09:09,055 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-04-18 16:09:09,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7073 states. [2020-04-18 16:09:09,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7073 to 5438. [2020-04-18 16:09:09,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5438 states. [2020-04-18 16:09:09,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 13786 transitions. [2020-04-18 16:09:09,178 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 13786 transitions. Word has length 88 [2020-04-18 16:09:09,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:09,178 INFO L479 AbstractCegarLoop]: Abstraction has 5438 states and 13786 transitions. [2020-04-18 16:09:09,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 16:09:09,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 13786 transitions. [2020-04-18 16:09:09,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-04-18 16:09:09,189 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:09,189 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:09,189 INFO L427 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:09,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:09,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1064598799, now seen corresponding path program 1 times [2020-04-18 16:09:09,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:09,190 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1646693275] [2020-04-18 16:09:09,195 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:09,222 INFO L259 McrAutomatonBuilder]: Finished intersection with 1062 states and 2033 transitions. [2020-04-18 16:09:09,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states. [2020-04-18 16:09:09,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-04-18 16:09:09,231 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:09,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:09,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1610234745, now seen corresponding path program 2 times [2020-04-18 16:09:09,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:09,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17651850] [2020-04-18 16:09:09,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:09,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:09,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17651850] [2020-04-18 16:09:09,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:09,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:09:09,353 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:09,371 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:09,515 INFO L259 McrAutomatonBuilder]: Finished intersection with 474 states and 857 transitions. [2020-04-18 16:09:09,516 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:09,544 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 16:09:09,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 16:09:09,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 16:09:09,545 INFO L87 Difference]: Start difference. First operand 1062 states. Second operand 5 states. [2020-04-18 16:09:09,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:09,594 INFO L93 Difference]: Finished difference Result 1082 states and 2052 transitions. [2020-04-18 16:09:09,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 2052 transitions. [2020-04-18 16:09:09,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-04-18 16:09:09,597 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:09:09,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:09,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1064598799, now seen corresponding path program 3 times [2020-04-18 16:09:09,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:09,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397394859] [2020-04-18 16:09:09,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:09,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:09,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397394859] [2020-04-18 16:09:09,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:09,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 16:09:09,727 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:09,745 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:09,929 INFO L259 McrAutomatonBuilder]: Finished intersection with 316 states and 541 transitions. [2020-04-18 16:09:09,930 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:10,019 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 10 times. [2020-04-18 16:09:10,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 16:09:10,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-04-18 16:09:10,019 INFO L87 Difference]: Start difference. First operand 1082 states and 2052 transitions. Second operand 9 states. [2020-04-18 16:09:10,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:10,180 INFO L93 Difference]: Finished difference Result 1190 states and 2247 transitions. [2020-04-18 16:09:10,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 2247 transitions. [2020-04-18 16:09:10,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:10,185 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1646693275] [2020-04-18 16:09:10,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:10,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 16:09:10,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1646693275] [2020-04-18 16:09:10,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-04-18 16:09:10,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:10,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 16:09:10,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-04-18 16:09:10,187 INFO L87 Difference]: Start difference. First operand 5438 states and 13786 transitions. Second operand 12 states. [2020-04-18 16:09:11,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:11,075 INFO L93 Difference]: Finished difference Result 11198 states and 27749 transitions. [2020-04-18 16:09:11,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-04-18 16:09:11,075 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-04-18 16:09:11,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:11,092 INFO L225 Difference]: With dead ends: 11198 [2020-04-18 16:09:11,093 INFO L226 Difference]: Without dead ends: 11198 [2020-04-18 16:09:11,094 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=335, Invalid=1471, Unknown=0, NotChecked=0, Total=1806 [2020-04-18 16:09:11,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11198 states. [2020-04-18 16:09:11,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11198 to 5801. [2020-04-18 16:09:11,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5801 states. [2020-04-18 16:09:11,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5801 states to 5801 states and 14661 transitions. [2020-04-18 16:09:11,280 INFO L78 Accepts]: Start accepts. Automaton has 5801 states and 14661 transitions. Word has length 89 [2020-04-18 16:09:11,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:11,280 INFO L479 AbstractCegarLoop]: Abstraction has 5801 states and 14661 transitions. [2020-04-18 16:09:11,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-04-18 16:09:11,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5801 states and 14661 transitions. [2020-04-18 16:09:11,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-04-18 16:09:11,288 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:11,289 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:11,289 INFO L427 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:11,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:11,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1853970025, now seen corresponding path program 1 times [2020-04-18 16:09:11,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:11,290 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [966473120] [2020-04-18 16:09:11,296 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:11,342 INFO L259 McrAutomatonBuilder]: Finished intersection with 1432 states and 2763 transitions. [2020-04-18 16:09:11,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states. [2020-04-18 16:09:11,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-04-18 16:09:11,355 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:11,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:11,355 INFO L82 PathProgramCache]: Analyzing trace with hash 215946367, now seen corresponding path program 2 times [2020-04-18 16:09:11,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:11,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346805823] [2020-04-18 16:09:11,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:11,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:11,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346805823] [2020-04-18 16:09:11,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:11,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:09:11,402 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:11,442 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:11,721 INFO L259 McrAutomatonBuilder]: Finished intersection with 564 states and 1027 transitions. [2020-04-18 16:09:11,721 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:11,745 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 16:09:11,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 16:09:11,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 16:09:11,746 INFO L87 Difference]: Start difference. First operand 1432 states. Second operand 5 states. [2020-04-18 16:09:11,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:11,789 INFO L93 Difference]: Finished difference Result 1462 states and 2792 transitions. [2020-04-18 16:09:11,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2792 transitions. [2020-04-18 16:09:11,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-04-18 16:09:11,792 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:09:11,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:11,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1853970025, now seen corresponding path program 3 times [2020-04-18 16:09:11,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:11,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599341422] [2020-04-18 16:09:11,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:12,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:12,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599341422] [2020-04-18 16:09:12,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:12,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-04-18 16:09:12,672 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:12,693 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:12,822 INFO L259 McrAutomatonBuilder]: Finished intersection with 326 states and 551 transitions. [2020-04-18 16:09:12,822 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:14,077 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 71 times. [2020-04-18 16:09:14,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-04-18 16:09:14,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1364, Unknown=0, NotChecked=0, Total=1482 [2020-04-18 16:09:14,078 INFO L87 Difference]: Start difference. First operand 1462 states and 2792 transitions. Second operand 35 states. [2020-04-18 16:09:20,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:20,646 INFO L93 Difference]: Finished difference Result 1870 states and 3546 transitions. [2020-04-18 16:09:20,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 3546 transitions. [2020-04-18 16:09:20,649 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:20,650 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [966473120] [2020-04-18 16:09:20,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:20,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-04-18 16:09:20,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [966473120] [2020-04-18 16:09:20,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-04-18 16:09:20,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:20,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-04-18 16:09:20,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=615, Invalid=4641, Unknown=0, NotChecked=0, Total=5256 [2020-04-18 16:09:20,653 INFO L87 Difference]: Start difference. First operand 5801 states and 14661 transitions. Second operand 38 states. [2020-04-18 16:09:22,095 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 36 [2020-04-18 16:09:22,542 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 39 [2020-04-18 16:09:23,689 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-04-18 16:09:24,721 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-04-18 16:09:28,442 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 35 [2020-04-18 16:09:29,357 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 44 [2020-04-18 16:09:29,910 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 47 [2020-04-18 16:09:30,618 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-04-18 16:09:30,802 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2020-04-18 16:09:31,229 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2020-04-18 16:09:31,614 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 52 [2020-04-18 16:09:31,790 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-04-18 16:09:32,049 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 48 [2020-04-18 16:09:32,444 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-04-18 16:09:32,632 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-04-18 16:09:33,052 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 51 [2020-04-18 16:09:33,356 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 45 [2020-04-18 16:09:33,541 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-04-18 16:09:33,754 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2020-04-18 16:09:34,000 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 52 [2020-04-18 16:09:34,202 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-04-18 16:09:34,395 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-04-18 16:09:34,638 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-04-18 16:09:35,035 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-04-18 16:09:35,238 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-04-18 16:09:35,689 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2020-04-18 16:09:35,895 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-04-18 16:09:36,210 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-04-18 16:09:36,729 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2020-04-18 16:09:37,323 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2020-04-18 16:09:37,597 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-04-18 16:09:38,143 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 32 [2020-04-18 16:09:38,553 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2020-04-18 16:09:38,766 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 35 [2020-04-18 16:09:38,909 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 42 [2020-04-18 16:09:42,215 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 38 [2020-04-18 16:09:42,629 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 36 [2020-04-18 16:09:42,989 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 42 [2020-04-18 16:09:43,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:43,474 INFO L93 Difference]: Finished difference Result 20963 states and 52640 transitions. [2020-04-18 16:09:43,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2020-04-18 16:09:43,474 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 99 [2020-04-18 16:09:43,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:43,500 INFO L225 Difference]: With dead ends: 20963 [2020-04-18 16:09:43,500 INFO L226 Difference]: Without dead ends: 20963 [2020-04-18 16:09:43,512 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16315 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=6153, Invalid=41153, Unknown=0, NotChecked=0, Total=47306 [2020-04-18 16:09:43,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20963 states. [2020-04-18 16:09:43,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20963 to 8219. [2020-04-18 16:09:43,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8219 states. [2020-04-18 16:09:43,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8219 states to 8219 states and 20970 transitions. [2020-04-18 16:09:43,741 INFO L78 Accepts]: Start accepts. Automaton has 8219 states and 20970 transitions. Word has length 99 [2020-04-18 16:09:43,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:43,741 INFO L479 AbstractCegarLoop]: Abstraction has 8219 states and 20970 transitions. [2020-04-18 16:09:43,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-04-18 16:09:43,741 INFO L276 IsEmpty]: Start isEmpty. Operand 8219 states and 20970 transitions. [2020-04-18 16:09:43,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-04-18 16:09:43,750 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:43,750 INFO L425 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:43,751 INFO L427 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:43,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:43,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1228230281, now seen corresponding path program 3 times [2020-04-18 16:09:43,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:43,751 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1462692626] [2020-04-18 16:09:43,755 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:43,757 INFO L259 McrAutomatonBuilder]: Finished intersection with 123 states and 122 transitions. [2020-04-18 16:09:43,757 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2020-04-18 16:09:43,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-04-18 16:09:43,758 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:43,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:43,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1228230281, now seen corresponding path program 4 times [2020-04-18 16:09:43,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:43,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600833627] [2020-04-18 16:09:43,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:43,855 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:43,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600833627] [2020-04-18 16:09:43,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106548159] [2020-04-18 16:09:43,856 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:09:43,933 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-04-18 16:09:43,933 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:09:43,934 INFO L264 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjunts are in the unsatisfiable core [2020-04-18 16:09:43,939 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:09:43,978 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:43,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:09:43,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-04-18 16:09:43,979 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:44,006 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:44,045 INFO L259 McrAutomatonBuilder]: Finished intersection with 123 states and 122 transitions. [2020-04-18 16:09:44,045 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:44,077 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:09:44,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 16:09:44,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-04-18 16:09:44,077 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 9 states. [2020-04-18 16:09:44,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:44,136 INFO L93 Difference]: Finished difference Result 123 states and 122 transitions. [2020-04-18 16:09:44,136 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 122 transitions. [2020-04-18 16:09:44,136 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:44,137 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1462692626] [2020-04-18 16:09:44,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:44,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 16:09:44,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1462692626] [2020-04-18 16:09:44,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 16:09:44,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:44,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 16:09:44,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-04-18 16:09:44,140 INFO L87 Difference]: Start difference. First operand 8219 states and 20970 transitions. Second operand 9 states. [2020-04-18 16:09:44,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:44,208 INFO L93 Difference]: Finished difference Result 11885 states and 30085 transitions. [2020-04-18 16:09:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 16:09:44,208 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 122 [2020-04-18 16:09:44,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:44,220 INFO L225 Difference]: With dead ends: 11885 [2020-04-18 16:09:44,220 INFO L226 Difference]: Without dead ends: 11885 [2020-04-18 16:09:44,221 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-04-18 16:09:44,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11885 states. [2020-04-18 16:09:44,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11885 to 9953. [2020-04-18 16:09:44,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9953 states. [2020-04-18 16:09:44,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9953 states to 9953 states and 25457 transitions. [2020-04-18 16:09:44,434 INFO L78 Accepts]: Start accepts. Automaton has 9953 states and 25457 transitions. Word has length 122 [2020-04-18 16:09:44,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:44,435 INFO L479 AbstractCegarLoop]: Abstraction has 9953 states and 25457 transitions. [2020-04-18 16:09:44,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 16:09:44,435 INFO L276 IsEmpty]: Start isEmpty. Operand 9953 states and 25457 transitions. [2020-04-18 16:09:44,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-04-18 16:09:44,451 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:44,452 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:44,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:09:44,666 INFO L427 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:44,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:44,667 INFO L82 PathProgramCache]: Analyzing trace with hash 557532147, now seen corresponding path program 1 times [2020-04-18 16:09:44,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:44,667 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1405872608] [2020-04-18 16:09:44,673 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:44,740 INFO L259 McrAutomatonBuilder]: Finished intersection with 2320 states and 4515 transitions. [2020-04-18 16:09:44,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states. [2020-04-18 16:09:44,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-04-18 16:09:44,756 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:44,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:44,756 INFO L82 PathProgramCache]: Analyzing trace with hash -303718391, now seen corresponding path program 2 times [2020-04-18 16:09:44,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:44,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277270776] [2020-04-18 16:09:44,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:44,810 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-04-18 16:09:44,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277270776] [2020-04-18 16:09:44,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:44,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:09:44,813 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:44,858 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:45,623 INFO L259 McrAutomatonBuilder]: Finished intersection with 580 states and 1035 transitions. [2020-04-18 16:09:45,623 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:45,635 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 16:09:45,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:09:45,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 16:09:45,636 INFO L87 Difference]: Start difference. First operand 2320 states. Second operand 4 states. [2020-04-18 16:09:45,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:45,667 INFO L93 Difference]: Finished difference Result 2524 states and 4868 transitions. [2020-04-18 16:09:45,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2524 states and 4868 transitions. [2020-04-18 16:09:45,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-04-18 16:09:45,670 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:09:45,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:45,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1559914065, now seen corresponding path program 3 times [2020-04-18 16:09:45,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:45,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403284351] [2020-04-18 16:09:45,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:45,731 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-04-18 16:09:45,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403284351] [2020-04-18 16:09:45,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:45,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 16:09:45,732 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:45,761 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:46,054 INFO L259 McrAutomatonBuilder]: Finished intersection with 453 states and 781 transitions. [2020-04-18 16:09:46,055 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:46,111 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 15 times. [2020-04-18 16:09:46,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 16:09:46,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-04-18 16:09:46,112 INFO L87 Difference]: Start difference. First operand 2524 states and 4868 transitions. Second operand 8 states. [2020-04-18 16:09:46,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:46,215 INFO L93 Difference]: Finished difference Result 2963 states and 5665 transitions. [2020-04-18 16:09:46,215 INFO L276 IsEmpty]: Start isEmpty. Operand 2963 states and 5665 transitions. [2020-04-18 16:09:46,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-04-18 16:09:46,220 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 16:09:46,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:46,221 INFO L82 PathProgramCache]: Analyzing trace with hash 557532147, now seen corresponding path program 4 times [2020-04-18 16:09:46,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:46,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937044266] [2020-04-18 16:09:46,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 16:09:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 16:09:46,343 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 16:09:46,343 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 16:09:46,343 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 16:09:46,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:09:46 BasicIcfg [2020-04-18 16:09:46,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 16:09:46,610 INFO L168 Benchmark]: Toolchain (without parser) took 44710.27 ms. Allocated memory was 138.9 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 101.0 MB in the beginning and 1.0 GB in the end (delta: -904.6 MB). Peak memory consumption was 999.7 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:46,610 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-18 16:09:46,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 907.97 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 99.1 MB in the beginning and 133.1 MB in the end (delta: -34.0 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:46,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.55 ms. Allocated memory is still 203.4 MB. Free memory was 133.1 MB in the beginning and 130.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:46,616 INFO L168 Benchmark]: Boogie Preprocessor took 35.67 ms. Allocated memory is still 203.4 MB. Free memory was 130.4 MB in the beginning and 128.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:46,616 INFO L168 Benchmark]: RCFGBuilder took 613.25 ms. Allocated memory is still 203.4 MB. Free memory was 128.4 MB in the beginning and 95.3 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:46,617 INFO L168 Benchmark]: TraceAbstraction took 43062.52 ms. Allocated memory was 203.4 MB in the beginning and 1.3 GB in the end (delta: 1.0 GB). Free memory was 94.6 MB in the beginning and 1.0 GB in the end (delta: -910.9 MB). Peak memory consumption was 928.9 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:46,623 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 907.97 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 99.1 MB in the beginning and 133.1 MB in the end (delta: -34.0 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 66.55 ms. Allocated memory is still 203.4 MB. Free memory was 133.1 MB in the beginning and 130.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.67 ms. Allocated memory is still 203.4 MB. Free memory was 130.4 MB in the beginning and 128.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 613.25 ms. Allocated memory is still 203.4 MB. Free memory was 128.4 MB in the beginning and 95.3 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 43062.52 ms. Allocated memory was 203.4 MB in the beginning and 1.3 GB in the end (delta: 1.0 GB). Free memory was 94.6 MB in the beginning and 1.0 GB in the end (delta: -910.9 MB). Peak memory consumption was 928.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 922]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L916] 0 static int top=0; VAL [top=0] [L917] 0 static unsigned int arr[(5)]; VAL [arr={7:0}, top=0] [L918] 0 pthread_mutex_t m; VAL [arr={7:0}, m={9:0}, top=0] [L919] 0 _Bool flag=(0); VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L1002] 0 pthread_t id1, id2; VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L1004] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L971] 1 int i; VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L972] 1 unsigned int tmp; VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L973] 1 i=0 VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L973] COND TRUE 1 i<(5) VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L1005] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L987] 2 int i; VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L988] 2 i=0 VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L988] COND TRUE 2 i<(5) VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L976] 1 tmp = __VERIFIER_nondet_uint() VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L4] COND FALSE 1 !(!cond) VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L943] COND FALSE 1 !(top==(5)) VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L935] 1 return top; VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L950] 1 stack[get_top()] = x VAL [arr={7:0}, flag=0, m={9:0}, top=0] [L927] 1 top++ VAL [arr={7:0}, flag=0, m={9:0}, top=1] [L953] 1 return 0; VAL [arr={7:0}, flag=0, m={9:0}, top=1] [L978] COND FALSE 1 !(push(arr,tmp)==(-1)) VAL [arr={7:0}, flag=0, m={9:0}, top=1] [L980] 1 flag=(1) VAL [arr={7:0}, flag=1, m={9:0}, top=1] [L991] COND TRUE 2 \read(flag) VAL [arr={7:0}, flag=1, m={9:0}, top=1] [L935] 2 return top; VAL [arr={7:0}, flag=1, m={9:0}, top=1] [L957] COND FALSE 2 !(get_top()==0) VAL [arr={7:0}, flag=1, m={9:0}, top=1] [L931] 2 top-- VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L935] 2 return top; VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L965] EXPR 2 stack[get_top()] VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L965] 2 return stack[get_top()]; VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L993] COND FALSE 2 !(!(pop(arr)!=(-2))) VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L988] 2 i++ VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L988] COND TRUE 2 i<(5) VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L991] COND TRUE 2 \read(flag) VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L935] 2 return top; VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L957] COND TRUE 2 get_top()==0 VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L960] 2 return (-2); VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L993] COND TRUE 2 !(pop(arr)!=(-2)) VAL [arr={7:0}, flag=1, m={9:0}, top=0] [L922] 2 __VERIFIER_error() VAL [arr={7:0}, flag=1, m={9:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 138 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 42.6s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 24.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 2436 SDtfs, 6453 SDslu, 19799 SDs, 0 SdLazy, 6974 SolverSat, 304 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1498 GetRequests, 1213 SyntacticMatches, 0 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16800 ImplicationChecksByTransitivity, 19.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10778occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 28191 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...