/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread/stack_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:30:21,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:30:21,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:30:21,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:30:21,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:30:21,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:30:21,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:30:21,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:30:21,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:30:21,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:30:21,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:30:21,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:30:21,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:30:21,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:30:21,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:30:21,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:30:21,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:30:21,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:30:21,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:30:21,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:30:21,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:30:21,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:30:21,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:30:21,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:30:21,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 12:30:21,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:30:21,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:30:21,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:30:21,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:30:21,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:30:21,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:30:21,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:30:21,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:30:21,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:30:21,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:30:21,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:30:21,294 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 12:30:21,339 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:30:21,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:30:21,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:30:21,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:30:21,342 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:30:21,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:30:21,342 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:30:21,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:30:21,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:30:21,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:30:21,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:30:21,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:30:21,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:30:21,345 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:30:21,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:30:21,346 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:30:21,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:30:21,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:30:21,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:30:21,347 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:30:21,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:30:21,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:30:21,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:30:21,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:30:21,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:30:21,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:30:21,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:30:21,349 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 12:30:21,349 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:30:21,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:30:21,350 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 12:30:21,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:30:21,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:30:21,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:30:21,680 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:30:21,681 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:30:21,682 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longer-1.i [2020-10-16 12:30:21,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0db6a0e9/27220b28528042acb54d3b6cb3e08d1d/FLAG0f4f4c508 [2020-10-16 12:30:22,325 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:30:22,326 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread/stack_longer-1.i [2020-10-16 12:30:22,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0db6a0e9/27220b28528042acb54d3b6cb3e08d1d/FLAG0f4f4c508 [2020-10-16 12:30:22,566 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0db6a0e9/27220b28528042acb54d3b6cb3e08d1d [2020-10-16 12:30:22,576 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:30:22,578 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:30:22,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:30:22,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:30:22,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:30:22,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:30:22" (1/1) ... [2020-10-16 12:30:22,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20784703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:22, skipping insertion in model container [2020-10-16 12:30:22,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:30:22" (1/1) ... [2020-10-16 12:30:22,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:30:22,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:30:23,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:30:23,263 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:30:23,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:30:23,500 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:30:23,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:23 WrapperNode [2020-10-16 12:30:23,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:30:23,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:30:23,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:30:23,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:30:23,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:23" (1/1) ... [2020-10-16 12:30:23,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:23" (1/1) ... [2020-10-16 12:30:23,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:30:23,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:30:23,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:30:23,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:30:23,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:23" (1/1) ... [2020-10-16 12:30:23,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:23" (1/1) ... [2020-10-16 12:30:23,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:23" (1/1) ... [2020-10-16 12:30:23,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:23" (1/1) ... [2020-10-16 12:30:23,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:23" (1/1) ... [2020-10-16 12:30:23,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:23" (1/1) ... [2020-10-16 12:30:23,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:23" (1/1) ... [2020-10-16 12:30:23,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:30:23,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:30:23,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:30:23,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:30:23,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 12:30:23,737 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-16 12:30:23,739 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-16 12:30:23,739 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-16 12:30:23,739 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-16 12:30:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:30:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:30:23,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 12:30:23,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:30:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 12:30:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 12:30:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:30:23,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:30:23,746 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:30:24,533 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:30:24,534 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-16 12:30:24,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:30:24 BoogieIcfgContainer [2020-10-16 12:30:24,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:30:24,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:30:24,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:30:24,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:30:24,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:30:22" (1/3) ... [2020-10-16 12:30:24,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd38042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:30:24, skipping insertion in model container [2020-10-16 12:30:24,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:23" (2/3) ... [2020-10-16 12:30:24,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd38042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:30:24, skipping insertion in model container [2020-10-16 12:30:24,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:30:24" (3/3) ... [2020-10-16 12:30:24,545 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2020-10-16 12:30:24,558 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:30:24,559 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:30:24,567 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:30:24,568 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:30:24,615 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,615 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,615 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,616 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,616 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,616 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,616 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,617 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,617 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,617 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,617 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,618 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,618 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,618 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,618 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,619 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,619 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,619 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,619 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,620 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,620 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,641 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,641 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,642 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,642 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,642 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,642 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,642 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,642 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,642 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,643 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,643 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,643 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,643 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,645 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,645 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,645 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,646 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,646 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,646 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,646 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,647 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,647 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,647 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,647 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,647 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,647 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,648 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,648 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,648 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,648 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,649 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,649 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,649 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,649 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,649 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,650 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,650 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,650 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,650 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,650 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,651 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,651 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,651 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,651 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,651 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,652 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,652 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,653 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,653 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,653 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,654 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,654 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,654 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,654 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,655 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,655 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,655 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,655 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,655 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,656 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,656 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,656 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,656 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,656 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,657 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,657 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,657 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,657 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,657 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,658 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,658 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,658 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,658 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,658 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,659 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,659 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,659 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,659 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,659 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,660 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,660 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,660 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,660 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,661 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,661 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,661 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,661 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,661 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,662 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,662 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,662 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,662 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,662 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,663 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,663 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,663 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,663 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,663 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,664 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,664 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,664 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,664 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,665 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,665 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,665 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,665 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,665 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,666 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,666 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,666 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,666 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,666 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,670 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,670 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,671 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,671 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,671 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,671 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,671 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,671 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,672 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,672 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,672 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,672 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,672 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,673 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,673 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,673 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,673 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,673 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,674 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,674 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,674 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,674 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,674 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,680 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,681 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,681 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,681 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,681 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,682 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,682 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,682 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,682 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,682 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,682 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,683 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,683 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,683 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,683 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,683 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,684 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,684 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,684 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:24,693 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 12:30:24,708 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 12:30:24,730 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:30:24,731 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:30:24,731 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:30:24,731 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 12:30:24,731 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:30:24,731 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:30:24,731 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:30:24,731 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:30:24,754 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:30:24,755 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 145 transitions, 312 flow [2020-10-16 12:30:24,757 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 145 transitions, 312 flow [2020-10-16 12:30:24,758 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-10-16 12:30:24,824 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-10-16 12:30:24,825 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 12:30:24,837 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 383 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-10-16 12:30:24,846 INFO L117 LiptonReduction]: Number of co-enabled transitions 6532 [2020-10-16 12:30:27,253 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-16 12:30:27,375 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-16 12:30:28,140 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2020-10-16 12:30:28,384 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-16 12:30:28,419 INFO L132 LiptonReduction]: Checked pairs total: 11311 [2020-10-16 12:30:28,419 INFO L134 LiptonReduction]: Total number of compositions: 129 [2020-10-16 12:30:28,426 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 41 transitions, 104 flow [2020-10-16 12:30:28,453 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 360 states. [2020-10-16 12:30:28,455 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states. [2020-10-16 12:30:28,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 12:30:28,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:28,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 12:30:28,464 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:28,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:28,470 INFO L82 PathProgramCache]: Analyzing trace with hash 447198837, now seen corresponding path program 1 times [2020-10-16 12:30:28,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:28,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68334558] [2020-10-16 12:30:28,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:28,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:28,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68334558] [2020-10-16 12:30:28,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:28,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:30:28,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [90673704] [2020-10-16 12:30:28,719 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:28,722 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:28,736 INFO L258 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-16 12:30:28,736 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:28,740 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:28,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:30:28,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:28,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:30:28,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:28,759 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 3 states. [2020-10-16 12:30:28,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:28,821 INFO L93 Difference]: Finished difference Result 577 states and 1453 transitions. [2020-10-16 12:30:28,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:30:28,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 12:30:28,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:28,843 INFO L225 Difference]: With dead ends: 577 [2020-10-16 12:30:28,843 INFO L226 Difference]: Without dead ends: 555 [2020-10-16 12:30:28,845 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 [2020-10-16 12:30:28,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-10-16 12:30:28,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 515. [2020-10-16 12:30:28,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-10-16 12:30:28,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 1354 transitions. [2020-10-16 12:30:28,956 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 1354 transitions. Word has length 6 [2020-10-16 12:30:28,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:28,957 INFO L481 AbstractCegarLoop]: Abstraction has 515 states and 1354 transitions. [2020-10-16 12:30:28,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:30:28,957 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 1354 transitions. [2020-10-16 12:30:28,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:30:28,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:28,959 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:28,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:30:28,960 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:28,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:28,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1139410892, now seen corresponding path program 1 times [2020-10-16 12:30:28,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:28,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134397524] [2020-10-16 12:30:28,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:29,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:29,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134397524] [2020-10-16 12:30:29,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:29,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:30:29,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [127876509] [2020-10-16 12:30:29,098 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:29,099 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:29,100 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-16 12:30:29,100 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:29,101 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:29,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:30:29,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:29,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:30:29,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:29,103 INFO L87 Difference]: Start difference. First operand 515 states and 1354 transitions. Second operand 3 states. [2020-10-16 12:30:29,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:29,121 INFO L93 Difference]: Finished difference Result 620 states and 1596 transitions. [2020-10-16 12:30:29,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:30:29,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 12:30:29,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:29,126 INFO L225 Difference]: With dead ends: 620 [2020-10-16 12:30:29,126 INFO L226 Difference]: Without dead ends: 598 [2020-10-16 12:30:29,130 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 [2020-10-16 12:30:29,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-16 12:30:29,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 558. [2020-10-16 12:30:29,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-10-16 12:30:29,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1476 transitions. [2020-10-16 12:30:29,185 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1476 transitions. Word has length 9 [2020-10-16 12:30:29,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:29,186 INFO L481 AbstractCegarLoop]: Abstraction has 558 states and 1476 transitions. [2020-10-16 12:30:29,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:30:29,187 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1476 transitions. [2020-10-16 12:30:29,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 12:30:29,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:29,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:29,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:30:29,189 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:29,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:29,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1261077674, now seen corresponding path program 1 times [2020-10-16 12:30:29,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:29,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501335437] [2020-10-16 12:30:29,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:29,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:29,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501335437] [2020-10-16 12:30:29,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:29,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:30:29,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1994147439] [2020-10-16 12:30:29,248 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:29,249 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:29,251 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-16 12:30:29,251 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:29,252 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:29,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:30:29,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:29,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:30:29,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:29,253 INFO L87 Difference]: Start difference. First operand 558 states and 1476 transitions. Second operand 3 states. [2020-10-16 12:30:29,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:29,269 INFO L93 Difference]: Finished difference Result 594 states and 1567 transitions. [2020-10-16 12:30:29,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:30:29,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 12:30:29,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:29,275 INFO L225 Difference]: With dead ends: 594 [2020-10-16 12:30:29,275 INFO L226 Difference]: Without dead ends: 594 [2020-10-16 12:30:29,276 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 [2020-10-16 12:30:29,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2020-10-16 12:30:29,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2020-10-16 12:30:29,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-10-16 12:30:29,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 1567 transitions. [2020-10-16 12:30:29,303 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 1567 transitions. Word has length 10 [2020-10-16 12:30:29,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:29,304 INFO L481 AbstractCegarLoop]: Abstraction has 594 states and 1567 transitions. [2020-10-16 12:30:29,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:30:29,304 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 1567 transitions. [2020-10-16 12:30:29,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:30:29,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:29,306 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:29,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:30:29,307 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:29,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:29,307 INFO L82 PathProgramCache]: Analyzing trace with hash -171507785, now seen corresponding path program 1 times [2020-10-16 12:30:29,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:29,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981912272] [2020-10-16 12:30:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:29,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:29,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981912272] [2020-10-16 12:30:29,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78570794] [2020-10-16 12:30:29,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 12:30:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:29,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-16 12:30:29,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 12:30:29,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:29,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 12:30:29,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-16 12:30:29,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1702410625] [2020-10-16 12:30:29,561 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:29,563 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:29,565 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-10-16 12:30:29,568 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:29,569 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:29,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:30:29,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:29,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:30:29,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:30:29,570 INFO L87 Difference]: Start difference. First operand 594 states and 1567 transitions. Second operand 5 states. [2020-10-16 12:30:29,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:29,641 INFO L93 Difference]: Finished difference Result 894 states and 2283 transitions. [2020-10-16 12:30:29,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:30:29,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 12:30:29,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:29,649 INFO L225 Difference]: With dead ends: 894 [2020-10-16 12:30:29,650 INFO L226 Difference]: Without dead ends: 894 [2020-10-16 12:30:29,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:30:29,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-10-16 12:30:29,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 728. [2020-10-16 12:30:29,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2020-10-16 12:30:29,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1913 transitions. [2020-10-16 12:30:29,680 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1913 transitions. Word has length 14 [2020-10-16 12:30:29,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:29,680 INFO L481 AbstractCegarLoop]: Abstraction has 728 states and 1913 transitions. [2020-10-16 12:30:29,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:30:29,681 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1913 transitions. [2020-10-16 12:30:29,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:30:29,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:29,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:29,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 12:30:29,898 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:29,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:29,899 INFO L82 PathProgramCache]: Analyzing trace with hash -284826607, now seen corresponding path program 1 times [2020-10-16 12:30:29,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:29,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098197816] [2020-10-16 12:30:29,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:29,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098197816] [2020-10-16 12:30:29,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:29,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:30:29,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [547375658] [2020-10-16 12:30:29,960 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:29,964 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:29,973 INFO L258 McrAutomatonBuilder]: Finished intersection with 44 states and 69 transitions. [2020-10-16 12:30:29,973 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:30,111 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:30,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:30:30,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:30,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:30:30,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:30,112 INFO L87 Difference]: Start difference. First operand 728 states and 1913 transitions. Second operand 3 states. [2020-10-16 12:30:30,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:30,132 INFO L93 Difference]: Finished difference Result 375 states and 842 transitions. [2020-10-16 12:30:30,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:30:30,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-16 12:30:30,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:30,135 INFO L225 Difference]: With dead ends: 375 [2020-10-16 12:30:30,135 INFO L226 Difference]: Without dead ends: 375 [2020-10-16 12:30:30,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 6 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:30,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2020-10-16 12:30:30,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 355. [2020-10-16 12:30:30,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-10-16 12:30:30,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 792 transitions. [2020-10-16 12:30:30,146 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 792 transitions. Word has length 17 [2020-10-16 12:30:30,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:30,147 INFO L481 AbstractCegarLoop]: Abstraction has 355 states and 792 transitions. [2020-10-16 12:30:30,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:30:30,147 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 792 transitions. [2020-10-16 12:30:30,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:30:30,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:30,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:30,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:30:30,149 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:30,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:30,150 INFO L82 PathProgramCache]: Analyzing trace with hash 473969269, now seen corresponding path program 1 times [2020-10-16 12:30:30,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:30,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003604400] [2020-10-16 12:30:30,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:30,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:30,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003604400] [2020-10-16 12:30:30,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:30,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:30:30,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1738754052] [2020-10-16 12:30:30,223 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:30,228 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:30,236 INFO L258 McrAutomatonBuilder]: Finished intersection with 41 states and 62 transitions. [2020-10-16 12:30:30,236 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:30,386 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [9488#(<= 0 |t1Thread1of1ForFork0_inc_top_#t~post30|), 9489#(<= 0 ~top~0)] [2020-10-16 12:30:30,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:30:30,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:30,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:30:30,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:30:30,388 INFO L87 Difference]: Start difference. First operand 355 states and 792 transitions. Second operand 7 states. [2020-10-16 12:30:30,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:30,476 INFO L93 Difference]: Finished difference Result 458 states and 1008 transitions. [2020-10-16 12:30:30,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:30:30,478 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-16 12:30:30,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:30,481 INFO L225 Difference]: With dead ends: 458 [2020-10-16 12:30:30,481 INFO L226 Difference]: Without dead ends: 458 [2020-10-16 12:30:30,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:30:30,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-10-16 12:30:30,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 397. [2020-10-16 12:30:30,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-10-16 12:30:30,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 896 transitions. [2020-10-16 12:30:30,495 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 896 transitions. Word has length 18 [2020-10-16 12:30:30,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:30,496 INFO L481 AbstractCegarLoop]: Abstraction has 397 states and 896 transitions. [2020-10-16 12:30:30,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:30:30,496 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 896 transitions. [2020-10-16 12:30:30,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:30:30,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:30,498 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, 1] [2020-10-16 12:30:30,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:30:30,499 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:30,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:30,499 INFO L82 PathProgramCache]: Analyzing trace with hash -2059233600, now seen corresponding path program 1 times [2020-10-16 12:30:30,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:30,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43404226] [2020-10-16 12:30:30,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:30,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:30,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43404226] [2020-10-16 12:30:30,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:30,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 12:30:30,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [125636762] [2020-10-16 12:30:30,878 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:30,881 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:30,889 INFO L258 McrAutomatonBuilder]: Finished intersection with 45 states and 66 transitions. [2020-10-16 12:30:30,889 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:30,917 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-10-16 12:30:30,974 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-10-16 12:30:30,988 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:30,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 12:30:30,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:30,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 12:30:30,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:30:30,989 INFO L87 Difference]: Start difference. First operand 397 states and 896 transitions. Second operand 9 states. [2020-10-16 12:30:31,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:31,285 INFO L93 Difference]: Finished difference Result 743 states and 1655 transitions. [2020-10-16 12:30:31,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:30:31,286 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-16 12:30:31,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:31,291 INFO L225 Difference]: With dead ends: 743 [2020-10-16 12:30:31,291 INFO L226 Difference]: Without dead ends: 743 [2020-10-16 12:30:31,292 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-16 12:30:31,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2020-10-16 12:30:31,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 537. [2020-10-16 12:30:31,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-16 12:30:31,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1237 transitions. [2020-10-16 12:30:31,310 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1237 transitions. Word has length 22 [2020-10-16 12:30:31,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:31,311 INFO L481 AbstractCegarLoop]: Abstraction has 537 states and 1237 transitions. [2020-10-16 12:30:31,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 12:30:31,311 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1237 transitions. [2020-10-16 12:30:31,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:30:31,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:31,312 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, 1] [2020-10-16 12:30:31,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:30:31,313 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:31,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:31,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1187016382, now seen corresponding path program 2 times [2020-10-16 12:30:31,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:31,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689848187] [2020-10-16 12:30:31,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:31,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:31,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689848187] [2020-10-16 12:30:31,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:31,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 12:30:31,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1575200199] [2020-10-16 12:30:31,633 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:31,636 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:31,641 INFO L258 McrAutomatonBuilder]: Finished intersection with 35 states and 46 transitions. [2020-10-16 12:30:31,642 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:31,669 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:31,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 12:30:31,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:31,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 12:30:31,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:30:31,670 INFO L87 Difference]: Start difference. First operand 537 states and 1237 transitions. Second operand 9 states. [2020-10-16 12:30:31,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:31,946 INFO L93 Difference]: Finished difference Result 874 states and 1968 transitions. [2020-10-16 12:30:31,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:30:31,946 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-16 12:30:31,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:31,952 INFO L225 Difference]: With dead ends: 874 [2020-10-16 12:30:31,952 INFO L226 Difference]: Without dead ends: 874 [2020-10-16 12:30:31,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:30:31,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2020-10-16 12:30:31,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 523. [2020-10-16 12:30:31,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2020-10-16 12:30:31,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 1200 transitions. [2020-10-16 12:30:31,971 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 1200 transitions. Word has length 22 [2020-10-16 12:30:31,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:31,971 INFO L481 AbstractCegarLoop]: Abstraction has 523 states and 1200 transitions. [2020-10-16 12:30:31,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 12:30:31,971 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 1200 transitions. [2020-10-16 12:30:31,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:30:31,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:31,972 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-16 12:30:31,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:30:31,973 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:31,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:31,973 INFO L82 PathProgramCache]: Analyzing trace with hash -13506823, now seen corresponding path program 2 times [2020-10-16 12:30:31,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:31,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15337060] [2020-10-16 12:30:31,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:32,032 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:32,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15337060] [2020-10-16 12:30:32,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307231498] [2020-10-16 12:30:32,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 12:30:32,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-16 12:30:32,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 12:30:32,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 12:30:32,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 12:30:32,141 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:32,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 12:30:32,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-16 12:30:32,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1517361577] [2020-10-16 12:30:32,142 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:32,145 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:32,149 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 22 transitions. [2020-10-16 12:30:32,150 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:32,150 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:32,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:30:32,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:32,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:30:32,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:30:32,151 INFO L87 Difference]: Start difference. First operand 523 states and 1200 transitions. Second operand 7 states. [2020-10-16 12:30:32,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:32,221 INFO L93 Difference]: Finished difference Result 781 states and 1736 transitions. [2020-10-16 12:30:32,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:30:32,222 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-16 12:30:32,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:32,226 INFO L225 Difference]: With dead ends: 781 [2020-10-16 12:30:32,226 INFO L226 Difference]: Without dead ends: 781 [2020-10-16 12:30:32,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:30:32,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2020-10-16 12:30:32,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 615. [2020-10-16 12:30:32,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-10-16 12:30:32,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 1404 transitions. [2020-10-16 12:30:32,246 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 1404 transitions. Word has length 22 [2020-10-16 12:30:32,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:32,246 INFO L481 AbstractCegarLoop]: Abstraction has 615 states and 1404 transitions. [2020-10-16 12:30:32,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:30:32,247 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 1404 transitions. [2020-10-16 12:30:32,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 12:30:32,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:32,248 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:32,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 12:30:32,461 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:32,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:32,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1609274498, now seen corresponding path program 1 times [2020-10-16 12:30:32,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:32,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355518633] [2020-10-16 12:30:32,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:32,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:32,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355518633] [2020-10-16 12:30:32,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800714317] [2020-10-16 12:30:32,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 12:30:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:32,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 12:30:32,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 12:30:32,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 12:30:32,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-16 12:30:32,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2020-10-16 12:30:32,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1592664294] [2020-10-16 12:30:32,630 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:32,635 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:32,648 INFO L258 McrAutomatonBuilder]: Finished intersection with 48 states and 69 transitions. [2020-10-16 12:30:32,648 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:32,774 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [16682#(or (= 400 ~top~0) (<= ~top~0 0))] [2020-10-16 12:30:32,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:30:32,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:32,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:30:32,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:30:32,775 INFO L87 Difference]: Start difference. First operand 615 states and 1404 transitions. Second operand 7 states. [2020-10-16 12:30:32,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:32,877 INFO L93 Difference]: Finished difference Result 1008 states and 2266 transitions. [2020-10-16 12:30:32,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:30:32,878 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-10-16 12:30:32,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:32,884 INFO L225 Difference]: With dead ends: 1008 [2020-10-16 12:30:32,884 INFO L226 Difference]: Without dead ends: 1008 [2020-10-16 12:30:32,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:30:32,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2020-10-16 12:30:32,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 726. [2020-10-16 12:30:32,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2020-10-16 12:30:32,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1696 transitions. [2020-10-16 12:30:32,908 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1696 transitions. Word has length 25 [2020-10-16 12:30:32,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:32,908 INFO L481 AbstractCegarLoop]: Abstraction has 726 states and 1696 transitions. [2020-10-16 12:30:32,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:30:32,909 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1696 transitions. [2020-10-16 12:30:32,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 12:30:32,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:32,910 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:33,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-16 12:30:33,126 INFO L429 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:33,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:33,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1648397582, now seen corresponding path program 1 times [2020-10-16 12:30:33,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:33,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255468282] [2020-10-16 12:30:33,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:30:33,166 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:30:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:30:33,238 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:30:33,275 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:30:33,275 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:30:33,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:30:33,277 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:30:33,277 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:30:33,278 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:30:33,285 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [572] [572] L971-6-->L939: Formula: (let ((.cse1 (select |#pthreadsMutex_In1891431459| |~#m~0.base_In1891431459|)) (.cse0 (mod t1Thread1of1ForFork0_~tmp~0_Out1891431459 4294967296))) (and (= |t1Thread1of1ForFork0_push_#in~x_Out1891431459| .cse0) (= (select .cse1 |~#m~0.offset_In1891431459|) 0) (= |t1Thread1of1ForFork0_push_#in~stack.base_Out1891431459| |~#arr~0.base_In1891431459|) (< t1Thread1of1ForFork0_~i~0_In1891431459 400) (= (store |#pthreadsMutex_In1891431459| |~#m~0.base_In1891431459| (store .cse1 |~#m~0.offset_In1891431459| 1)) |#pthreadsMutex_Out1891431459|) (= |t1Thread1of1ForFork0_#t~nondet43_In1891431459| t1Thread1of1ForFork0_~tmp~0_Out1891431459) (= |t1Thread1of1ForFork0_push_#in~stack.offset_Out1891431459| |~#arr~0.offset_In1891431459|) (< .cse0 400) (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out1891431459 |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out1891431459|) (= |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out1891431459| 1))) InVars {~#arr~0.offset=|~#arr~0.offset_In1891431459|, #pthreadsMutex=|#pthreadsMutex_In1891431459|, ~#m~0.base=|~#m~0.base_In1891431459|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In1891431459, ~#m~0.offset=|~#m~0.offset_In1891431459|, ~#arr~0.base=|~#arr~0.base_In1891431459|, t1Thread1of1ForFork0_#t~nondet43=|t1Thread1of1ForFork0_#t~nondet43_In1891431459|} OutVars{~#arr~0.offset=|~#arr~0.offset_In1891431459|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out1891431459|, #pthreadsMutex=|#pthreadsMutex_Out1891431459|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In1891431459, t1Thread1of1ForFork0_push_~stack.offset=t1Thread1of1ForFork0_push_~stack.offset_Out1891431459, t1Thread1of1ForFork0_push_#t~ret35=|t1Thread1of1ForFork0_push_#t~ret35_Out1891431459|, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out1891431459|, ~#m~0.base=|~#m~0.base_In1891431459|, t1Thread1of1ForFork0_push_#t~nondet33=|t1Thread1of1ForFork0_push_#t~nondet33_Out1891431459|, t1Thread1of1ForFork0_push_~stack.base=t1Thread1of1ForFork0_push_~stack.base_Out1891431459, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out1891431459, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out1891431459|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_Out1891431459, t1Thread1of1ForFork0_push_~x=t1Thread1of1ForFork0_push_~x_Out1891431459, ~#m~0.offset=|~#m~0.offset_In1891431459|, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out1891431459|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out1891431459|, t1Thread1of1ForFork0_#t~nondet42=|t1Thread1of1ForFork0_#t~nondet42_Out1891431459|, ~#arr~0.base=|~#arr~0.base_In1891431459|, t1Thread1of1ForFork0_#t~nondet43=|t1Thread1of1ForFork0_#t~nondet43_Out1891431459|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, #pthreadsMutex, t1Thread1of1ForFork0_push_~stack.offset, t1Thread1of1ForFork0_push_#t~ret35, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_#t~nondet33, t1Thread1of1ForFork0_push_~stack.base, t1Thread1of1ForFork0_assume_abort_if_not_~cond, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_~tmp~0, t1Thread1of1ForFork0_push_~x, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond, t1Thread1of1ForFork0_push_#in~stack.offset, t1Thread1of1ForFork0_#t~nondet42, t1Thread1of1ForFork0_#t~nondet43] because there is no mapped edge [2020-10-16 12:30:33,290 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [561] [561] L976-2-->L979: Formula: (and (<= 0 (+ |t1Thread1of1ForFork0_#t~ret44_In1214067305| 2147483648)) (<= |t1Thread1of1ForFork0_#t~ret44_In1214067305| 2147483647) (not (= (- 1) |t1Thread1of1ForFork0_#t~ret44_In1214067305|)) (= ~flag~0_Out1214067305 1)) InVars {t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_In1214067305|} OutVars{t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_Out1214067305|, ~flag~0=~flag~0_Out1214067305} AuxVars[] AssignedVars[t1Thread1of1ForFork0_#t~ret44, ~flag~0] because there is no mapped edge [2020-10-16 12:30:33,295 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [573] [573] L991-3-->L986-6: Formula: (and (<= |t2Thread1of1ForFork1_#t~ret47_In682313632| 2147483647) (= |#pthreadsMutex_Out682313632| (store |#pthreadsMutex_In682313632| |~#m~0.base_In682313632| (store (select |#pthreadsMutex_In682313632| |~#m~0.base_In682313632|) |~#m~0.offset_In682313632| 0))) (not (= (- 2) |t2Thread1of1ForFork1_#t~ret47_In682313632|)) (<= 0 (+ |t2Thread1of1ForFork1_#t~ret47_In682313632| 2147483648)) (= t2Thread1of1ForFork1_~i~1_In682313632 (+ t2Thread1of1ForFork1_~i~1_Out682313632 (- 1)))) InVars {#pthreadsMutex=|#pthreadsMutex_In682313632|, ~#m~0.base=|~#m~0.base_In682313632|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_In682313632|, ~#m~0.offset=|~#m~0.offset_In682313632|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In682313632} OutVars{#pthreadsMutex=|#pthreadsMutex_Out682313632|, ~#m~0.base=|~#m~0.base_In682313632|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_Out682313632|, ~#m~0.offset=|~#m~0.offset_In682313632|, t2Thread1of1ForFork1_#t~post45=|t2Thread1of1ForFork1_#t~post45_Out682313632|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out682313632} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_#t~ret47, t2Thread1of1ForFork1_#t~post45, t2Thread1of1ForFork1_~i~1] because there is no mapped edge [2020-10-16 12:30:33,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:30:33 BasicIcfg [2020-10-16 12:30:33,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:30:33,384 INFO L168 Benchmark]: Toolchain (without parser) took 10804.95 ms. Allocated memory was 139.5 MB in the beginning and 323.0 MB in the end (delta: 183.5 MB). Free memory was 101.4 MB in the beginning and 221.6 MB in the end (delta: -120.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:33,385 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-16 12:30:33,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 922.29 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 135.2 MB in the end (delta: -34.0 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:33,387 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.48 ms. Allocated memory is still 203.4 MB. Free memory was 135.2 MB in the beginning and 132.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:33,391 INFO L168 Benchmark]: Boogie Preprocessor took 39.23 ms. Allocated memory is still 203.4 MB. Free memory was 132.4 MB in the beginning and 130.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:33,392 INFO L168 Benchmark]: RCFGBuilder took 924.22 ms. Allocated memory is still 203.4 MB. Free memory was 130.3 MB in the beginning and 97.0 MB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:30:33,394 INFO L168 Benchmark]: TraceAbstraction took 8842.45 ms. Allocated memory was 203.4 MB in the beginning and 323.0 MB in the end (delta: 119.5 MB). Free memory was 97.0 MB in the beginning and 221.6 MB in the end (delta: -124.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:30:33,402 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 922.29 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 135.2 MB in the end (delta: -34.0 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 70.48 ms. Allocated memory is still 203.4 MB. Free memory was 135.2 MB in the beginning and 132.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.23 ms. Allocated memory is still 203.4 MB. Free memory was 132.4 MB in the beginning and 130.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 924.22 ms. Allocated memory is still 203.4 MB. Free memory was 130.3 MB in the beginning and 97.0 MB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8842.45 ms. Allocated memory was 203.4 MB in the beginning and 323.0 MB in the end (delta: 119.5 MB). Free memory was 97.0 MB in the beginning and 221.6 MB in the end (delta: -124.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3800 VarBasedMoverChecksPositive, 58 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 222 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.6s, 140 PlacesBefore, 41 PlacesAfterwards, 145 TransitionsBefore, 41 TransitionsAfterwards, 6532 CoEnabledTransitionPairs, 5 FixpointIterations, 26 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 5 ChoiceCompositions, 129 TotalNumberOfCompositions, 11311 MoverChecksTotal - CounterExampleResult [Line: 921]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L916] 0 static int top=0; [L917] 0 static unsigned int arr[(400)]; [L918] 0 pthread_mutex_t m; [L919] 0 _Bool flag=(0); [L1000] 0 pthread_t id1, id2; [L1002] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={3:0}, flag=0, m={9:0}, top=0] [L969] 1 int i; [L970] 1 unsigned int tmp; [L971] 1 i=0 VAL [arr={3:0}, flag=0, m={9:0}, top=0] [L1003] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={3:0}, flag=0, m={9:0}, top=0] [L941] COND FALSE 1 !(top==(400)) [L933] 1 return top; [L948] 1 stack[get_top()] = x VAL [arr={3:0}, flag=0, m={9:0}, top=0] [L925] 1 top++ [L951] 1 return 0; [L971] 1 i++ VAL [arr={3:0}, flag=1, m={9:0}, top=1] [L985] 2 int i; [L986] 2 i=0 VAL [arr={3:0}, flag=1, m={9:0}, top=1] [L986] COND TRUE 2 i<(400) [L989] COND TRUE 2 \read(flag) [L933] 2 return top; [L955] COND FALSE 2 !(get_top()==0) VAL [arr={3:0}, flag=1, m={9:0}, top=1] [L929] 2 top-- [L933] 2 return top; [L963] EXPR 2 stack[get_top()] [L963] 2 return stack[get_top()]; [L986] COND TRUE 2 i<(400) [L989] COND TRUE 2 \read(flag) [L933] 2 return top; [L955] COND TRUE 2 get_top()==0 [L958] 2 return (-2); [L991] COND TRUE 2 !(pop(arr)!=(-2)) [L921] 2 __VERIFIER_error() VAL [arr={3:0}, flag=1, m={9:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 134 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.5s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 476 SDtfs, 593 SDslu, 1030 SDs, 0 SdLazy, 463 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 134 SyntacticMatches, 15 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=728occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 1332 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 35006 SizeOfPredicates, 8 NumberOfNonLiveVariables, 536 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 10/40 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 proved your program to be incorrect! Received shutdown request...