/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread/stack-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 21:31:23,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 21:31:23,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 21:31:23,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 21:31:23,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 21:31:23,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 21:31:23,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 21:31:23,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 21:31:23,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 21:31:23,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 21:31:23,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 21:31:23,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 21:31:23,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 21:31:23,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 21:31:23,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 21:31:23,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 21:31:23,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 21:31:23,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 21:31:23,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 21:31:23,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 21:31:23,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 21:31:23,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 21:31:23,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 21:31:23,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 21:31:23,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 21:31:23,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 21:31:23,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 21:31:23,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 21:31:23,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 21:31:23,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 21:31:23,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 21:31:23,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 21:31:23,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 21:31:23,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 21:31:23,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 21:31:23,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 21:31:23,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 21:31:23,692 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 21:31:23,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 21:31:23,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 21:31:23,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 21:31:23,694 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 21:31:23,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 21:31:23,694 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 21:31:23,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 21:31:23,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 21:31:23,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 21:31:23,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 21:31:23,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 21:31:23,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 21:31:23,696 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 21:31:23,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 21:31:23,696 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 21:31:23,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 21:31:23,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 21:31:23,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 21:31:23,697 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 21:31:23,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 21:31:23,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 21:31:23,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 21:31:23,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 21:31:23,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 21:31:23,698 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 21:31:23,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 21:31:23,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 21:31:23,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 21:31:23,699 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 21:31:23,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 21:31:24,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 21:31:24,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 21:31:24,006 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 21:31:24,012 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 21:31:24,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack-1.i [2020-10-21 21:31:24,089 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9da83b53f/016c53feb7f046688ad1177a23d93937/FLAG71123d8d6 [2020-10-21 21:31:24,630 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 21:31:24,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-1.i [2020-10-21 21:31:24,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9da83b53f/016c53feb7f046688ad1177a23d93937/FLAG71123d8d6 [2020-10-21 21:31:24,975 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9da83b53f/016c53feb7f046688ad1177a23d93937 [2020-10-21 21:31:24,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 21:31:24,990 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 21:31:24,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 21:31:24,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 21:31:24,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 21:31:24,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:31:24" (1/1) ... [2020-10-21 21:31:24,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e018818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:31:24, skipping insertion in model container [2020-10-21 21:31:24,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:31:24" (1/1) ... [2020-10-21 21:31:25,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 21:31:25,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 21:31:25,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:31:25,572 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 21:31:25,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:31:25,817 INFO L208 MainTranslator]: Completed translation [2020-10-21 21:31:25,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:31:25 WrapperNode [2020-10-21 21:31:25,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 21:31:25,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 21:31:25,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 21:31:25,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 21:31:25,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:31:25" (1/1) ... [2020-10-21 21:31:25,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:31:25" (1/1) ... [2020-10-21 21:31:25,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 21:31:25,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 21:31:25,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 21:31:25,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 21:31:25,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:31:25" (1/1) ... [2020-10-21 21:31:25,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:31:25" (1/1) ... [2020-10-21 21:31:25,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:31:25" (1/1) ... [2020-10-21 21:31:25,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:31:25" (1/1) ... [2020-10-21 21:31:25,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:31:25" (1/1) ... [2020-10-21 21:31:26,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:31:25" (1/1) ... [2020-10-21 21:31:26,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:31:25" (1/1) ... [2020-10-21 21:31:26,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 21:31:26,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 21:31:26,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 21:31:26,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 21:31:26,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:31:25" (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 [2020-10-21 21:31:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-21 21:31:26,161 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-21 21:31:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-21 21:31:26,162 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-21 21:31:26,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 21:31:26,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 21:31:26,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 21:31:26,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 21:31:26,165 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 21:31:26,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 21:31:26,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 21:31:26,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 21:31:26,170 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 21:31:26,705 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 21:31:26,706 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-10-21 21:31:26,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:31:26 BoogieIcfgContainer [2020-10-21 21:31:26,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 21:31:26,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 21:31:26,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 21:31:26,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 21:31:26,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 09:31:24" (1/3) ... [2020-10-21 21:31:26,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b63628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:31:26, skipping insertion in model container [2020-10-21 21:31:26,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:31:25" (2/3) ... [2020-10-21 21:31:26,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b63628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:31:26, skipping insertion in model container [2020-10-21 21:31:26,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:31:26" (3/3) ... [2020-10-21 21:31:26,730 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-1.i [2020-10-21 21:31:26,741 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 21:31:26,741 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 21:31:26,748 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-21 21:31:26,749 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 21:31:26,784 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,785 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,785 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,785 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,785 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,786 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,786 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,786 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,786 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,786 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,786 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,787 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,787 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,787 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,787 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,788 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,788 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,788 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,788 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,788 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,788 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,789 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,789 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,789 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,789 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,789 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,790 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,790 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,790 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,790 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,790 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,791 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,791 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,791 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,791 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,791 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,791 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,792 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,792 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,792 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,792 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,793 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,793 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,793 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,793 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,793 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,794 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,794 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,794 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,794 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,794 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,795 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,795 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,795 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,795 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,795 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,796 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,796 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,796 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,796 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,796 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,797 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,797 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,797 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,797 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,798 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,798 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,798 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,798 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,798 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,799 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,799 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,800 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,800 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,800 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,800 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,801 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,801 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,801 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,801 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,801 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,802 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,802 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,802 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,802 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,803 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,803 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,803 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,803 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,804 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,804 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,804 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,804 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,804 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,804 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,805 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,805 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,805 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,805 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,805 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,806 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,806 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,806 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,806 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,806 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,807 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,807 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,807 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,807 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,807 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,808 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,808 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,808 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,808 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,808 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,809 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,809 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,809 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,809 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,809 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,810 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,810 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,810 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,810 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,811 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,811 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,811 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,811 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,811 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,812 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,812 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,816 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,816 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,816 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,816 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,816 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,817 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,817 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,817 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,817 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,817 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,818 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,818 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,818 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,818 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,818 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,819 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,819 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,819 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,819 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,819 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,828 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,828 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,828 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,829 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,829 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,829 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,829 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,829 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,829 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,830 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,830 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,830 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,830 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,831 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,831 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,831 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,831 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,831 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,831 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,832 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,832 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,832 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,832 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,833 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,833 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:31:26,840 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 21:31:26,853 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-21 21:31:26,874 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 21:31:26,874 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 21:31:26,874 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 21:31:26,874 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 21:31:26,874 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 21:31:26,875 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 21:31:26,875 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 21:31:26,875 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 21:31:26,891 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 21:31:26,893 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 156 transitions, 334 flow [2020-10-21 21:31:26,896 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 156 transitions, 334 flow [2020-10-21 21:31:26,898 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 149 places, 156 transitions, 334 flow [2020-10-21 21:31:26,979 INFO L129 PetriNetUnfolder]: 13/156 cut-off events. [2020-10-21 21:31:26,980 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-21 21:31:26,989 INFO L80 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 156 events. 13/156 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 397 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 116. Up to 3 conditions per place. [2020-10-21 21:31:27,000 INFO L116 LiptonReduction]: Number of co-enabled transitions 6874 [2020-10-21 21:31:27,298 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-21 21:31:30,318 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-21 21:31:30,486 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-21 21:31:31,673 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 156 DAG size of output: 146 [2020-10-21 21:31:32,123 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-21 21:31:32,164 INFO L131 LiptonReduction]: Checked pairs total: 12126 [2020-10-21 21:31:32,165 INFO L133 LiptonReduction]: Total number of compositions: 152 [2020-10-21 21:31:32,171 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 41 transitions, 104 flow [2020-10-21 21:31:32,201 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 354 states. [2020-10-21 21:31:32,203 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states. [2020-10-21 21:31:32,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 21:31:32,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:31:32,213 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-21 21:31:32,214 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:31:32,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:31:32,221 INFO L82 PathProgramCache]: Analyzing trace with hash 2111258440, now seen corresponding path program 1 times [2020-10-21 21:31:32,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:31:32,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002977850] [2020-10-21 21:31:32,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:31:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:31:32,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:31:32,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002977850] [2020-10-21 21:31:32,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:31:32,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:31:32,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785405234] [2020-10-21 21:31:32,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:31:32,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:31:32,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:31:32,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:31:32,464 INFO L87 Difference]: Start difference. First operand 354 states. Second operand 3 states. [2020-10-21 21:31:32,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:31:32,544 INFO L93 Difference]: Finished difference Result 548 states and 1356 transitions. [2020-10-21 21:31:32,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:31:32,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-21 21:31:32,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:31:32,567 INFO L225 Difference]: With dead ends: 548 [2020-10-21 21:31:32,567 INFO L226 Difference]: Without dead ends: 499 [2020-10-21 21:31:32,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:31:32,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-21 21:31:32,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 459. [2020-10-21 21:31:32,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-10-21 21:31:32,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 1193 transitions. [2020-10-21 21:31:32,680 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 1193 transitions. Word has length 6 [2020-10-21 21:31:32,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:31:32,682 INFO L481 AbstractCegarLoop]: Abstraction has 459 states and 1193 transitions. [2020-10-21 21:31:32,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:31:32,682 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 1193 transitions. [2020-10-21 21:31:32,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 21:31:32,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:31:32,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:31:32,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 21:31:32,684 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:31:32,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:31:32,685 INFO L82 PathProgramCache]: Analyzing trace with hash -503248650, now seen corresponding path program 1 times [2020-10-21 21:31:32,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:31:32,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168311669] [2020-10-21 21:31:32,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:31:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:31:32,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:31:32,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168311669] [2020-10-21 21:31:32,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:31:32,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:31:32,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995761551] [2020-10-21 21:31:32,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:31:32,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:31:32,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:31:32,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:31:32,788 INFO L87 Difference]: Start difference. First operand 459 states and 1193 transitions. Second operand 3 states. [2020-10-21 21:31:32,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:31:32,803 INFO L93 Difference]: Finished difference Result 507 states and 1313 transitions. [2020-10-21 21:31:32,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:31:32,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-21 21:31:32,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:31:32,807 INFO L225 Difference]: With dead ends: 507 [2020-10-21 21:31:32,807 INFO L226 Difference]: Without dead ends: 507 [2020-10-21 21:31:32,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:31:32,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-10-21 21:31:32,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2020-10-21 21:31:32,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-10-21 21:31:32,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 1313 transitions. [2020-10-21 21:31:32,829 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 1313 transitions. Word has length 10 [2020-10-21 21:31:32,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:31:32,829 INFO L481 AbstractCegarLoop]: Abstraction has 507 states and 1313 transitions. [2020-10-21 21:31:32,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:31:32,829 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 1313 transitions. [2020-10-21 21:31:32,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 21:31:32,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:31:32,831 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:31:32,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 21:31:32,832 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:31:32,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:31:32,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1451634146, now seen corresponding path program 1 times [2020-10-21 21:31:32,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:31:32,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084029936] [2020-10-21 21:31:32,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:31:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:31:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:31:32,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084029936] [2020-10-21 21:31:32,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995063876] [2020-10-21 21:31:32,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-21 21:31:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:31:33,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-21 21:31:33,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 21:31:33,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:31:33,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 21:31:33,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-21 21:31:33,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211569597] [2020-10-21 21:31:33,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-21 21:31:33,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:31:33,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-21 21:31:33,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 21:31:33,078 INFO L87 Difference]: Start difference. First operand 507 states and 1313 transitions. Second operand 7 states. [2020-10-21 21:31:33,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:31:33,181 INFO L93 Difference]: Finished difference Result 955 states and 2372 transitions. [2020-10-21 21:31:33,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 21:31:33,181 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-21 21:31:33,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:31:33,187 INFO L225 Difference]: With dead ends: 955 [2020-10-21 21:31:33,187 INFO L226 Difference]: Without dead ends: 925 [2020-10-21 21:31:33,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-21 21:31:33,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2020-10-21 21:31:33,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 617. [2020-10-21 21:31:33,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2020-10-21 21:31:33,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 1593 transitions. [2020-10-21 21:31:33,209 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 1593 transitions. Word has length 13 [2020-10-21 21:31:33,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:31:33,210 INFO L481 AbstractCegarLoop]: Abstraction has 617 states and 1593 transitions. [2020-10-21 21:31:33,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-21 21:31:33,210 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 1593 transitions. [2020-10-21 21:31:33,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 21:31:33,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:31:33,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:31:33,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-21 21:31:33,426 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:31:33,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:31:33,427 INFO L82 PathProgramCache]: Analyzing trace with hash -72297809, now seen corresponding path program 1 times [2020-10-21 21:31:33,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:31:33,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474053145] [2020-10-21 21:31:33,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:31:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:31:33,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:31:33,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474053145] [2020-10-21 21:31:33,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:31:33,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:31:33,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541718597] [2020-10-21 21:31:33,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:31:33,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:31:33,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:31:33,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:31:33,485 INFO L87 Difference]: Start difference. First operand 617 states and 1593 transitions. Second operand 3 states. [2020-10-21 21:31:33,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:31:33,509 INFO L93 Difference]: Finished difference Result 312 states and 684 transitions. [2020-10-21 21:31:33,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:31:33,509 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-21 21:31:33,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:31:33,511 INFO L225 Difference]: With dead ends: 312 [2020-10-21 21:31:33,511 INFO L226 Difference]: Without dead ends: 308 [2020-10-21 21:31:33,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:31:33,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-10-21 21:31:33,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 294. [2020-10-21 21:31:33,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-10-21 21:31:33,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 645 transitions. [2020-10-21 21:31:33,520 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 645 transitions. Word has length 16 [2020-10-21 21:31:33,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:31:33,521 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 645 transitions. [2020-10-21 21:31:33,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:31:33,521 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 645 transitions. [2020-10-21 21:31:33,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 21:31:33,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:31:33,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:31:33,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 21:31:33,523 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:31:33,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:31:33,523 INFO L82 PathProgramCache]: Analyzing trace with hash -171241883, now seen corresponding path program 1 times [2020-10-21 21:31:33,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:31:33,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790803904] [2020-10-21 21:31:33,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:31:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:31:33,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:31:33,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790803904] [2020-10-21 21:31:33,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:31:33,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:31:33,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460033502] [2020-10-21 21:31:33,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:31:33,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:31:33,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:31:33,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:31:33,589 INFO L87 Difference]: Start difference. First operand 294 states and 645 transitions. Second operand 3 states. [2020-10-21 21:31:33,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:31:33,629 INFO L93 Difference]: Finished difference Result 374 states and 816 transitions. [2020-10-21 21:31:33,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:31:33,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-21 21:31:33,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:31:33,632 INFO L225 Difference]: With dead ends: 374 [2020-10-21 21:31:33,632 INFO L226 Difference]: Without dead ends: 372 [2020-10-21 21:31:33,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:31:33,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-10-21 21:31:33,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 293. [2020-10-21 21:31:33,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-10-21 21:31:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 644 transitions. [2020-10-21 21:31:33,641 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 644 transitions. Word has length 17 [2020-10-21 21:31:33,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:31:33,641 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 644 transitions. [2020-10-21 21:31:33,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:31:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 644 transitions. [2020-10-21 21:31:33,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-21 21:31:33,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:31:33,642 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-21 21:31:33,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 21:31:33,643 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:31:33,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:31:33,643 INFO L82 PathProgramCache]: Analyzing trace with hash -750486008, now seen corresponding path program 2 times [2020-10-21 21:31:33,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:31:33,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868201192] [2020-10-21 21:31:33,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:31:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:31:33,755 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:31:33,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868201192] [2020-10-21 21:31:33,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93424592] [2020-10-21 21:31:33,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2020-10-21 21:31:33,843 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-21 21:31:33,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 21:31:33,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-21 21:31:33,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 21:31:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:31:33,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 21:31:33,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-21 21:31:33,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624021360] [2020-10-21 21:31:33,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 21:31:33,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:31:33,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 21:31:33,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-21 21:31:33,873 INFO L87 Difference]: Start difference. First operand 293 states and 644 transitions. Second operand 9 states. [2020-10-21 21:31:33,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:31:33,970 INFO L93 Difference]: Finished difference Result 546 states and 1160 transitions. [2020-10-21 21:31:33,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-21 21:31:33,971 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-21 21:31:33,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:31:33,974 INFO L225 Difference]: With dead ends: 546 [2020-10-21 21:31:33,974 INFO L226 Difference]: Without dead ends: 546 [2020-10-21 21:31:33,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-21 21:31:33,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2020-10-21 21:31:33,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 370. [2020-10-21 21:31:33,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-21 21:31:33,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 815 transitions. [2020-10-21 21:31:33,986 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 815 transitions. Word has length 20 [2020-10-21 21:31:33,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:31:33,986 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 815 transitions. [2020-10-21 21:31:33,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 21:31:33,986 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 815 transitions. [2020-10-21 21:31:33,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-21 21:31:33,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:31:33,988 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:31:34,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:31:34,201 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:31:34,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:31:34,201 INFO L82 PathProgramCache]: Analyzing trace with hash -485132574, now seen corresponding path program 1 times [2020-10-21 21:31:34,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:31:34,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984910370] [2020-10-21 21:31:34,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:31:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:31:34,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:31:34,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984910370] [2020-10-21 21:31:34,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:31:34,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-21 21:31:34,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910051594] [2020-10-21 21:31:34,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-21 21:31:34,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:31:34,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-21 21:31:34,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-10-21 21:31:34,735 INFO L87 Difference]: Start difference. First operand 370 states and 815 transitions. Second operand 15 states. [2020-10-21 21:31:36,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:31:36,115 INFO L93 Difference]: Finished difference Result 705 states and 1490 transitions. [2020-10-21 21:31:36,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-21 21:31:36,116 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 21 [2020-10-21 21:31:36,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:31:36,119 INFO L225 Difference]: With dead ends: 705 [2020-10-21 21:31:36,120 INFO L226 Difference]: Without dead ends: 627 [2020-10-21 21:31:36,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=152, Invalid=718, Unknown=0, NotChecked=0, Total=870 [2020-10-21 21:31:36,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2020-10-21 21:31:36,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 420. [2020-10-21 21:31:36,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-10-21 21:31:36,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 926 transitions. [2020-10-21 21:31:36,133 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 926 transitions. Word has length 21 [2020-10-21 21:31:36,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:31:36,133 INFO L481 AbstractCegarLoop]: Abstraction has 420 states and 926 transitions. [2020-10-21 21:31:36,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-21 21:31:36,133 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 926 transitions. [2020-10-21 21:31:36,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-21 21:31:36,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:31:36,135 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2020-10-21 21:31:36,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 21:31:36,135 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:31:36,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:31:36,135 INFO L82 PathProgramCache]: Analyzing trace with hash -298264798, now seen corresponding path program 3 times [2020-10-21 21:31:36,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:31:36,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109285964] [2020-10-21 21:31:36,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:31:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:31:36,250 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:31:36,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109285964] [2020-10-21 21:31:36,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251618153] [2020-10-21 21:31:36,251 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:31:36,368 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-21 21:31:36,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 21:31:36,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-21 21:31:36,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 21:31:36,399 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:31:36,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 21:31:36,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2020-10-21 21:31:36,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433775275] [2020-10-21 21:31:36,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-21 21:31:36,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:31:36,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-21 21:31:36,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-21 21:31:36,401 INFO L87 Difference]: Start difference. First operand 420 states and 926 transitions. Second operand 11 states. [2020-10-21 21:31:36,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:31:36,514 INFO L93 Difference]: Finished difference Result 765 states and 1611 transitions. [2020-10-21 21:31:36,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 21:31:36,515 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-21 21:31:36,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:31:36,519 INFO L225 Difference]: With dead ends: 765 [2020-10-21 21:31:36,520 INFO L226 Difference]: Without dead ends: 765 [2020-10-21 21:31:36,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-10-21 21:31:36,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-10-21 21:31:36,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 497. [2020-10-21 21:31:36,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-10-21 21:31:36,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 1097 transitions. [2020-10-21 21:31:36,534 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 1097 transitions. Word has length 27 [2020-10-21 21:31:36,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:31:36,535 INFO L481 AbstractCegarLoop]: Abstraction has 497 states and 1097 transitions. [2020-10-21 21:31:36,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-21 21:31:36,535 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 1097 transitions. [2020-10-21 21:31:36,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-21 21:31:36,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:31:36,536 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:31:36,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:31:36,751 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:31:36,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:31:36,751 INFO L82 PathProgramCache]: Analyzing trace with hash 56373942, now seen corresponding path program 2 times [2020-10-21 21:31:36,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:31:36,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44770526] [2020-10-21 21:31:36,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:31:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:31:37,229 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:31:37,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44770526] [2020-10-21 21:31:37,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409252905] [2020-10-21 21:31:37,230 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:31:37,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-21 21:31:37,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 21:31:37,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 43 conjunts are in the unsatisfiable core [2020-10-21 21:31:37,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 21:31:37,641 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2020-10-21 21:31:37,642 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 21:31:37,677 INFO L625 ElimStorePlain]: treesize reduction 14, result has 78.5 percent of original size [2020-10-21 21:31:37,686 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 21:31:37,687 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:69, output treesize:57 [2020-10-21 21:31:38,179 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-21 21:31:38,203 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 35 [2020-10-21 21:31:38,278 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-21 21:31:38,761 INFO L545 ElimStorePlain]: Start of recursive call 2: 8 dim-0 vars, End of recursive call: 8 dim-0 vars, and 1 xjuncts. [2020-10-21 21:31:38,771 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 32 [2020-10-21 21:31:38,806 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-21 21:31:39,006 INFO L545 ElimStorePlain]: Start of recursive call 3: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2020-10-21 21:31:39,129 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 36 [2020-10-21 21:31:39,130 INFO L625 ElimStorePlain]: treesize reduction 222, result has 29.5 percent of original size [2020-10-21 21:31:39,216 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2020-10-21 21:31:39,216 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:164, output treesize:93 [2020-10-21 21:31:39,419 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-21 21:31:39,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-21 21:31:39,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [15] total 28 [2020-10-21 21:31:39,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272506172] [2020-10-21 21:31:39,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 21:31:39,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:31:39,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 21:31:39,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2020-10-21 21:31:39,423 INFO L87 Difference]: Start difference. First operand 497 states and 1097 transitions. Second operand 14 states. [2020-10-21 21:31:39,997 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-21 21:31:40,293 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-21 21:31:42,178 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-21 21:31:46,935 WARN L193 SmtUtils]: Spent 4.29 s on a formula simplification that was a NOOP. DAG size: 85 [2020-10-21 21:31:47,480 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-21 21:31:47,894 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-21 21:31:48,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:31:48,294 INFO L93 Difference]: Finished difference Result 844 states and 1821 transitions. [2020-10-21 21:31:48,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-21 21:31:48,294 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2020-10-21 21:31:48,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:31:48,299 INFO L225 Difference]: With dead ends: 844 [2020-10-21 21:31:48,299 INFO L226 Difference]: Without dead ends: 844 [2020-10-21 21:31:48,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=242, Invalid=2014, Unknown=0, NotChecked=0, Total=2256 [2020-10-21 21:31:48,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-10-21 21:31:48,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 559. [2020-10-21 21:31:48,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-21 21:31:48,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1238 transitions. [2020-10-21 21:31:48,320 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1238 transitions. Word has length 28 [2020-10-21 21:31:48,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:31:48,320 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 1238 transitions. [2020-10-21 21:31:48,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 21:31:48,320 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1238 transitions. [2020-10-21 21:31:48,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-21 21:31:48,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:31:48,322 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:31:48,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:31:48,537 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:31:48,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:31:48,538 INFO L82 PathProgramCache]: Analyzing trace with hash 105557047, now seen corresponding path program 1 times [2020-10-21 21:31:48,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:31:48,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567953202] [2020-10-21 21:31:48,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:31:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:31:48,606 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 21:31:48,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567953202] [2020-10-21 21:31:48,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528934803] [2020-10-21 21:31:48,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:31:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:31:48,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-21 21:31:48,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 21:31:48,761 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 21:31:48,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 21:31:48,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-21 21:31:48,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121410386] [2020-10-21 21:31:48,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-21 21:31:48,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:31:48,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-21 21:31:48,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-21 21:31:48,767 INFO L87 Difference]: Start difference. First operand 559 states and 1238 transitions. Second operand 10 states. [2020-10-21 21:31:48,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:31:48,902 INFO L93 Difference]: Finished difference Result 914 states and 1938 transitions. [2020-10-21 21:31:48,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 21:31:48,903 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-10-21 21:31:48,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:31:48,907 INFO L225 Difference]: With dead ends: 914 [2020-10-21 21:31:48,908 INFO L226 Difference]: Without dead ends: 914 [2020-10-21 21:31:48,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-21 21:31:48,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2020-10-21 21:31:48,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 603. [2020-10-21 21:31:48,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-10-21 21:31:48,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 1362 transitions. [2020-10-21 21:31:48,924 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 1362 transitions. Word has length 31 [2020-10-21 21:31:48,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:31:48,925 INFO L481 AbstractCegarLoop]: Abstraction has 603 states and 1362 transitions. [2020-10-21 21:31:48,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-21 21:31:48,925 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 1362 transitions. [2020-10-21 21:31:48,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-21 21:31:48,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:31:48,927 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2020-10-21 21:31:49,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-21 21:31:49,142 INFO L429 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:31:49,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:31:49,143 INFO L82 PathProgramCache]: Analyzing trace with hash 775744712, now seen corresponding path program 4 times [2020-10-21 21:31:49,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:31:49,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050400881] [2020-10-21 21:31:49,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:31:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:31:49,283 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:31:49,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050400881] [2020-10-21 21:31:49,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783155618] [2020-10-21 21:31:49,284 INFO L93 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:31:49,370 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-21 21:31:49,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 21:31:49,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-21 21:31:49,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 21:31:49,403 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:31:49,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 21:31:49,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2020-10-21 21:31:49,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510100593] [2020-10-21 21:31:49,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-21 21:31:49,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:31:49,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-21 21:31:49,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-21 21:31:49,405 INFO L87 Difference]: Start difference. First operand 603 states and 1362 transitions. Second operand 13 states. [2020-10-21 21:31:49,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:31:49,549 INFO L93 Difference]: Finished difference Result 990 states and 2126 transitions. [2020-10-21 21:31:49,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-21 21:31:49,549 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 34 [2020-10-21 21:31:49,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:31:49,555 INFO L225 Difference]: With dead ends: 990 [2020-10-21 21:31:49,555 INFO L226 Difference]: Without dead ends: 990 [2020-10-21 21:31:49,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2020-10-21 21:31:49,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2020-10-21 21:31:49,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 680. [2020-10-21 21:31:49,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2020-10-21 21:31:49,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1533 transitions. [2020-10-21 21:31:49,573 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1533 transitions. Word has length 34 [2020-10-21 21:31:49,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:31:49,573 INFO L481 AbstractCegarLoop]: Abstraction has 680 states and 1533 transitions. [2020-10-21 21:31:49,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-21 21:31:49,574 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1533 transitions. [2020-10-21 21:31:49,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-21 21:31:49,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:31:49,575 INFO L422 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] [2020-10-21 21:31:49,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:31:49,789 INFO L429 AbstractCegarLoop]: === Iteration 12 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:31:49,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:31:49,790 INFO L82 PathProgramCache]: Analyzing trace with hash -68780166, now seen corresponding path program 1 times [2020-10-21 21:31:49,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:31:49,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679294255] [2020-10-21 21:31:49,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:31:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:31:50,697 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:31:50,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679294255] [2020-10-21 21:31:50,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648405564] [2020-10-21 21:31:50,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:31:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:31:50,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 60 conjunts are in the unsatisfiable core [2020-10-21 21:31:50,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 21:31:51,135 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2020-10-21 21:31:51,136 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 21:31:51,169 INFO L625 ElimStorePlain]: treesize reduction 14, result has 78.5 percent of original size [2020-10-21 21:31:51,174 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 21:31:51,174 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:69, output treesize:57 [2020-10-21 21:31:51,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 21:31:51,646 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 45 [2020-10-21 21:31:51,647 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 21:31:51,666 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 21:31:51,668 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 21:31:51,668 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:79, output treesize:58 [2020-10-21 21:31:52,352 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-21 21:31:52,369 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 32 [2020-10-21 21:31:52,383 INFO L545 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 21:31:52,394 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 35 [2020-10-21 21:31:52,460 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-21 21:31:52,680 INFO L721 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-21 21:31:53,145 INFO L721 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-21 21:31:53,807 INFO L721 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-21 21:31:54,448 INFO L721 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-21 21:31:54,971 INFO L721 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-21 21:35:30,585 INFO L545 ElimStorePlain]: Start of recursive call 3: 29 dim-0 vars, End of recursive call: 29 dim-0 vars, and 1 xjuncts. [2020-10-21 21:35:30,779 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 31 [2020-10-21 21:35:30,780 INFO L625 ElimStorePlain]: treesize reduction 823, result has 7.6 percent of original size [2020-10-21 21:35:30,783 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 21:35:30,784 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:164, output treesize:68 [2020-10-21 21:35:30,909 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:35:30,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 21:35:30,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 39 [2020-10-21 21:35:30,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180313592] [2020-10-21 21:35:30,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-21 21:35:30,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:35:30,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-21 21:35:30,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1443, Unknown=0, NotChecked=0, Total=1560 [2020-10-21 21:35:30,912 INFO L87 Difference]: Start difference. First operand 680 states and 1533 transitions. Second operand 40 states. [2020-10-21 21:35:31,759 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-10-21 21:35:32,242 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2020-10-21 21:35:32,620 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2020-10-21 21:35:32,838 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-10-21 21:35:33,593 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2020-10-21 21:35:33,865 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-10-21 21:35:34,282 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-21 21:35:34,597 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-10-21 21:35:35,582 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-21 21:35:36,387 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-21 21:35:36,864 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-21 21:35:37,182 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-21 21:35:37,942 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2020-10-21 21:35:38,542 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-10-21 21:35:39,052 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-21 21:35:39,936 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2020-10-21 21:35:40,508 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-21 21:35:41,088 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-21 21:35:41,417 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-21 21:35:42,041 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-21 21:35:42,768 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-21 21:35:43,022 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-10-21 21:35:43,311 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2020-10-21 21:35:44,961 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2020-10-21 21:35:45,407 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-10-21 21:35:45,869 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-10-21 21:35:46,573 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-21 21:35:47,128 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-21 21:35:47,487 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-21 21:35:48,414 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2020-10-21 21:35:48,764 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2020-10-21 21:35:49,121 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 51 [2020-10-21 21:35:49,556 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-21 21:35:50,110 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-21 21:35:50,544 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2020-10-21 21:35:50,968 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-21 21:35:51,727 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2020-10-21 21:35:52,321 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 95 [2020-10-21 21:35:52,790 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-21 21:35:53,666 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-21 21:35:54,060 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2020-10-21 21:35:54,498 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-21 21:35:54,946 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 Received shutdown request... [2020-10-21 21:35:55,299 WARN L210 SmtUtils]: Removed 23 from assertion stack [2020-10-21 21:35:55,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-21 21:35:55,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:35:55,501 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-21 21:35:55,505 WARN L235 ceAbstractionStarter]: Timeout [2020-10-21 21:35:55,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 09:35:55 BasicIcfg [2020-10-21 21:35:55,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 21:35:55,507 INFO L168 Benchmark]: Toolchain (without parser) took 270522.57 ms. Allocated memory was 147.8 MB in the beginning and 301.5 MB in the end (delta: 153.6 MB). Free memory was 100.9 MB in the beginning and 230.7 MB in the end (delta: -129.8 MB). Peak memory consumption was 189.1 MB. Max. memory is 7.1 GB. [2020-10-21 21:35:55,507 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 21:35:55,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 828.92 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 100.1 MB in the beginning and 134.4 MB in the end (delta: -34.3 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2020-10-21 21:35:55,513 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.10 ms. Allocated memory is still 205.0 MB. Free memory was 134.4 MB in the beginning and 131.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-21 21:35:55,514 INFO L168 Benchmark]: Boogie Preprocessor took 84.99 ms. Allocated memory is still 205.0 MB. Free memory was 131.8 MB in the beginning and 129.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-21 21:35:55,514 INFO L168 Benchmark]: RCFGBuilder took 690.76 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 129.9 MB in the beginning and 206.6 MB in the end (delta: -76.7 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2020-10-21 21:35:55,515 INFO L168 Benchmark]: TraceAbstraction took 268783.23 ms. Allocated memory was 235.4 MB in the beginning and 301.5 MB in the end (delta: 66.1 MB). Free memory was 206.6 MB in the beginning and 230.7 MB in the end (delta: -24.1 MB). Peak memory consumption was 207.3 MB. Max. memory is 7.1 GB. [2020-10-21 21:35:55,521 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 828.92 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 100.1 MB in the beginning and 134.4 MB in the end (delta: -34.3 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 124.10 ms. Allocated memory is still 205.0 MB. Free memory was 134.4 MB in the beginning and 131.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.99 ms. Allocated memory is still 205.0 MB. Free memory was 131.8 MB in the beginning and 129.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 690.76 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 129.9 MB in the beginning and 206.6 MB in the end (delta: -76.7 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 268783.23 ms. Allocated memory was 235.4 MB in the beginning and 301.5 MB in the end (delta: 66.1 MB). Free memory was 206.6 MB in the beginning and 230.7 MB in the end (delta: -24.1 MB). Peak memory consumption was 207.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4996 VarBasedMoverChecksPositive, 139 VarBasedMoverChecksNegative, 66 SemBasedMoverChecksPositive, 73 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 345 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.2s, 149 PlacesBefore, 41 PlacesAfterwards, 156 TransitionsBefore, 41 TransitionsAfterwards, 6874 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 83 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 28 ConcurrentYvCompositions, 7 ChoiceCompositions, 152 TotalNumberOfCompositions, 12126 MoverChecksTotal - TimeoutResultAtElement [Line: 12]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 12). Cancelled while BasicCegarLoop was constructing difference of abstraction (680states) and FLOYD_HOARE automaton (currently 55 states, 40 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 94 for 184ms.. - TimeoutResultAtElement [Line: 12]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 12). Cancelled while BasicCegarLoop was constructing difference of abstraction (680states) and FLOYD_HOARE automaton (currently 55 states, 40 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 94 for 184ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 143 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 268.6s, OverallIterations: 12, TraceHistogramMax: 5, AutomataDifference: 35.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 713 SDtfs, 2086 SDslu, 5557 SDs, 0 SdLazy, 5254 SolverSat, 407 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 414 GetRequests, 184 SyntacticMatches, 2 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2750 ImplicationChecksByTransitivity, 30.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=680occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 1998 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 224.7s InterpolantComputationTime, 448 NumberOfCodeBlocks, 441 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 429 ConstructedInterpolants, 4 QuantifiedInterpolants, 139555 SizeOfPredicates, 69 NumberOfNonLiveVariables, 1698 ConjunctsInSsa, 139 ConjunctsInUnsatCore, 19 InterpolantComputations, 6 PerfectInterpolantSequences, 38/270 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown