/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-bf4350c [2020-09-17 14:52:55,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 14:52:55,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 14:52:55,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 14:52:55,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 14:52:55,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 14:52:55,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 14:52:55,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 14:52:55,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 14:52:55,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 14:52:55,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 14:52:55,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 14:52:55,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 14:52:55,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 14:52:55,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 14:52:55,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 14:52:55,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 14:52:55,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 14:52:55,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 14:52:55,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 14:52:55,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 14:52:55,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 14:52:55,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 14:52:55,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 14:52:55,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-17 14:52:55,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-17 14:52:55,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-17 14:52:55,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-17 14:52:55,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-17 14:52:55,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-17 14:52:55,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 14:52:55,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 14:52:55,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 14:52:55,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 14:52:55,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 14:52:55,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 14:52:55,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 14:52:55,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 14:52:55,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 14:52:55,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 14:52:55,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 14:52:55,759 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-17 14:52:55,804 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 14:52:55,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 14:52:55,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 14:52:55,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 14:52:55,807 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 14:52:55,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 14:52:55,808 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 14:52:55,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 14:52:55,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 14:52:55,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 14:52:55,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 14:52:55,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 14:52:55,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 14:52:55,810 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 14:52:55,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 14:52:55,811 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 14:52:55,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 14:52:55,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 14:52:55,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 14:52:55,812 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 14:52:55,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 14:52:55,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 14:52:55,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 14:52:55,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-17 14:52:55,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 14:52:55,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 14:52:55,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 14:52:55,813 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-17 14:52:55,813 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-17 14:52:55,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 14:52:55,814 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-17 14:52:56,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 14:52:56,243 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 14:52:56,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 14:52:56,249 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 14:52:56,249 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 14:52:56,251 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longer-1.i [2020-09-17 14:52:56,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b47178c3d/cb6021be5a9444699daf61de6c3299eb/FLAGaa6acfdda [2020-09-17 14:52:56,993 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 14:52:56,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-1.i [2020-09-17 14:52:57,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b47178c3d/cb6021be5a9444699daf61de6c3299eb/FLAGaa6acfdda [2020-09-17 14:52:57,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b47178c3d/cb6021be5a9444699daf61de6c3299eb [2020-09-17 14:52:57,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 14:52:57,259 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 14:52:57,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 14:52:57,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 14:52:57,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 14:52:57,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 02:52:57" (1/1) ... [2020-09-17 14:52:57,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b0e60e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:52:57, skipping insertion in model container [2020-09-17 14:52:57,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 02:52:57" (1/1) ... [2020-09-17 14:52:57,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 14:52:57,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 14:52:57,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 14:52:57,959 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 14:52:58,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 14:52:58,213 INFO L208 MainTranslator]: Completed translation [2020-09-17 14:52:58,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:52:58 WrapperNode [2020-09-17 14:52:58,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 14:52:58,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 14:52:58,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 14:52:58,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 14:52:58,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:52:58" (1/1) ... [2020-09-17 14:52:58,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:52:58" (1/1) ... [2020-09-17 14:52:58,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 14:52:58,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 14:52:58,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 14:52:58,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 14:52:58,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:52:58" (1/1) ... [2020-09-17 14:52:58,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:52:58" (1/1) ... [2020-09-17 14:52:58,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:52:58" (1/1) ... [2020-09-17 14:52:58,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:52:58" (1/1) ... [2020-09-17 14:52:58,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:52:58" (1/1) ... [2020-09-17 14:52:58,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:52:58" (1/1) ... [2020-09-17 14:52:58,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:52:58" (1/1) ... [2020-09-17 14:52:58,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 14:52:58,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 14:52:58,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 14:52:58,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 14:52:58,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:52:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 14:52:58,513 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-09-17 14:52:58,514 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-09-17 14:52:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-09-17 14:52:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-09-17 14:52:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 14:52:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 14:52:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-17 14:52:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 14:52:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-09-17 14:52:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-17 14:52:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 14:52:58,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 14:52:58,521 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 14:52:59,080 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 14:52:59,080 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-09-17 14:52:59,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 02:52:59 BoogieIcfgContainer [2020-09-17 14:52:59,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 14:52:59,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 14:52:59,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 14:52:59,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 14:52:59,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 02:52:57" (1/3) ... [2020-09-17 14:52:59,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3795d7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 02:52:59, skipping insertion in model container [2020-09-17 14:52:59,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:52:58" (2/3) ... [2020-09-17 14:52:59,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3795d7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 02:52:59, skipping insertion in model container [2020-09-17 14:52:59,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 02:52:59" (3/3) ... [2020-09-17 14:52:59,095 INFO L109 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2020-09-17 14:52:59,107 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 14:52:59,108 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-17 14:52:59,119 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-17 14:52:59,120 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 14:52:59,175 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,175 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,176 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,176 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,176 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,176 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,177 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,177 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,177 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,178 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,178 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,178 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,178 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,179 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,179 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,179 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,179 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,179 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,180 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,180 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,180 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,180 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,180 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,181 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,181 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,181 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,181 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,182 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,182 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,182 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,182 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,182 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,182 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,183 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,183 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,183 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,183 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,184 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,184 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,184 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,184 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,185 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,185 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,185 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,185 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,185 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,186 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,186 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,186 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,186 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,187 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,187 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,187 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,187 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,187 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,188 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,188 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,188 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,188 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,189 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,189 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,189 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,189 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,190 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,190 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,190 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,190 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,191 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,192 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,192 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,192 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,192 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,193 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,193 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,193 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,194 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,194 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,194 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,194 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,195 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,195 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,195 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,195 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,196 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,196 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,196 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,196 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,197 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,197 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,197 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,197 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,197 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,197 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,198 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,198 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,198 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,198 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,199 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,199 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,199 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,199 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,199 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,200 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,200 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,200 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,200 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,201 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,201 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,201 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,201 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,202 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,202 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,202 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,202 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,203 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,203 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,203 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,203 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,203 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,204 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,204 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,204 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,204 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,205 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,205 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,205 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,205 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,205 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,206 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,206 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,206 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,206 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,206 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,211 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,211 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,212 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,212 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,212 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,212 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,213 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,213 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,213 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,213 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,213 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,214 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,214 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,214 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,214 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,214 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,215 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,215 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,215 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,215 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,215 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,216 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,216 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,223 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,223 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,223 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,224 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,224 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,224 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,224 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,224 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,225 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,225 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,225 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,225 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,225 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,226 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,226 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,226 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,226 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,226 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,227 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:52:59,261 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-09-17 14:52:59,285 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 14:52:59,285 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 14:52:59,285 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-17 14:52:59,285 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-17 14:52:59,285 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 14:52:59,285 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 14:52:59,285 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 14:52:59,285 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 14:52:59,306 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 145 transitions, 312 flow [2020-09-17 14:52:59,308 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-09-17 14:52:59,397 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-09-17 14:52:59,397 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-17 14:52:59,410 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. [2020-09-17 14:52:59,420 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-09-17 14:52:59,495 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-09-17 14:52:59,496 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-17 14:52:59,498 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. [2020-09-17 14:52:59,503 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 6532 [2020-09-17 14:52:59,505 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-17 14:53:01,827 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-09-17 14:53:01,956 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-09-17 14:53:02,758 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2020-09-17 14:53:02,994 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-17 14:53:03,033 INFO L206 etLargeBlockEncoding]: Checked pairs total: 8325 [2020-09-17 14:53:03,034 INFO L214 etLargeBlockEncoding]: Total number of compositions: 124 [2020-09-17 14:53:03,038 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 41 transitions, 104 flow [2020-09-17 14:53:03,064 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 360 states. [2020-09-17 14:53:03,067 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states. [2020-09-17 14:53:03,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-17 14:53:03,076 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:53:03,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-17 14:53:03,077 INFO L427 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:53:03,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:53:03,085 INFO L82 PathProgramCache]: Analyzing trace with hash 447198837, now seen corresponding path program 1 times [2020-09-17 14:53:03,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:53:03,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112873632] [2020-09-17 14:53:03,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:53:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:53:03,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:53:03,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112873632] [2020-09-17 14:53:03,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:53:03,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 14:53:03,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1204896561] [2020-09-17 14:53:03,401 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 14:53:03,405 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 14:53:03,423 INFO L274 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-09-17 14:53:03,424 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 14:53:03,425 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 14:53:03,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 14:53:03,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:53:03,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 14:53:03,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 14:53:03,451 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 3 states. [2020-09-17 14:53:03,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:53:03,561 INFO L93 Difference]: Finished difference Result 577 states and 1453 transitions. [2020-09-17 14:53:03,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 14:53:03,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-09-17 14:53:03,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:53:03,593 INFO L225 Difference]: With dead ends: 577 [2020-09-17 14:53:03,594 INFO L226 Difference]: Without dead ends: 555 [2020-09-17 14:53:03,595 INFO L675 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 [2020-09-17 14:53:03,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-09-17 14:53:03,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 515. [2020-09-17 14:53:03,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-09-17 14:53:03,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 1354 transitions. [2020-09-17 14:53:03,711 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 1354 transitions. Word has length 6 [2020-09-17 14:53:03,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:53:03,711 INFO L479 AbstractCegarLoop]: Abstraction has 515 states and 1354 transitions. [2020-09-17 14:53:03,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 14:53:03,712 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 1354 transitions. [2020-09-17 14:53:03,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 14:53:03,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:53:03,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:53:03,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 14:53:03,714 INFO L427 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:53:03,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:53:03,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1139410892, now seen corresponding path program 1 times [2020-09-17 14:53:03,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:53:03,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444125954] [2020-09-17 14:53:03,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:53:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:53:03,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:53:03,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444125954] [2020-09-17 14:53:03,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:53:03,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 14:53:03,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [539852720] [2020-09-17 14:53:03,851 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 14:53:03,853 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 14:53:03,854 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-17 14:53:03,855 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 14:53:03,855 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 14:53:03,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 14:53:03,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:53:03,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 14:53:03,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 14:53:03,860 INFO L87 Difference]: Start difference. First operand 515 states and 1354 transitions. Second operand 3 states. [2020-09-17 14:53:03,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:53:03,878 INFO L93 Difference]: Finished difference Result 620 states and 1596 transitions. [2020-09-17 14:53:03,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 14:53:03,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-17 14:53:03,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:53:03,884 INFO L225 Difference]: With dead ends: 620 [2020-09-17 14:53:03,884 INFO L226 Difference]: Without dead ends: 598 [2020-09-17 14:53:03,885 INFO L675 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 [2020-09-17 14:53:03,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-09-17 14:53:03,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 558. [2020-09-17 14:53:03,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-09-17 14:53:03,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1476 transitions. [2020-09-17 14:53:03,923 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1476 transitions. Word has length 9 [2020-09-17 14:53:03,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:53:03,924 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 1476 transitions. [2020-09-17 14:53:03,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 14:53:03,924 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1476 transitions. [2020-09-17 14:53:03,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-17 14:53:03,925 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:53:03,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:53:03,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 14:53:03,926 INFO L427 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:53:03,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:53:03,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1261077674, now seen corresponding path program 1 times [2020-09-17 14:53:03,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:53:03,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692782462] [2020-09-17 14:53:03,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:53:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:53:04,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:53:04,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692782462] [2020-09-17 14:53:04,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:53:04,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 14:53:04,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1708761442] [2020-09-17 14:53:04,005 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 14:53:04,007 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 14:53:04,008 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-17 14:53:04,008 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 14:53:04,008 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 14:53:04,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 14:53:04,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:53:04,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 14:53:04,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 14:53:04,009 INFO L87 Difference]: Start difference. First operand 558 states and 1476 transitions. Second operand 3 states. [2020-09-17 14:53:04,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:53:04,028 INFO L93 Difference]: Finished difference Result 594 states and 1567 transitions. [2020-09-17 14:53:04,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 14:53:04,029 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-17 14:53:04,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:53:04,034 INFO L225 Difference]: With dead ends: 594 [2020-09-17 14:53:04,034 INFO L226 Difference]: Without dead ends: 594 [2020-09-17 14:53:04,034 INFO L675 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 [2020-09-17 14:53:04,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2020-09-17 14:53:04,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2020-09-17 14:53:04,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-09-17 14:53:04,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 1567 transitions. [2020-09-17 14:53:04,057 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 1567 transitions. Word has length 10 [2020-09-17 14:53:04,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:53:04,058 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 1567 transitions. [2020-09-17 14:53:04,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 14:53:04,058 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 1567 transitions. [2020-09-17 14:53:04,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-17 14:53:04,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:53:04,060 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:53:04,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 14:53:04,060 INFO L427 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:53:04,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:53:04,061 INFO L82 PathProgramCache]: Analyzing trace with hash -171507785, now seen corresponding path program 1 times [2020-09-17 14:53:04,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:53:04,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315392274] [2020-09-17 14:53:04,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:53:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:53:04,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:53:04,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315392274] [2020-09-17 14:53:04,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958039947] [2020-09-17 14:53:04,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 14:53:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:53:04,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-17 14:53:04,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 14:53:04,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:53:04,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 14:53:04,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-09-17 14:53:04,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [400948415] [2020-09-17 14:53:04,326 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 14:53:04,329 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 14:53:04,364 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-09-17 14:53:04,364 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 14:53:04,366 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 14:53:04,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 14:53:04,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:53:04,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 14:53:04,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-17 14:53:04,367 INFO L87 Difference]: Start difference. First operand 594 states and 1567 transitions. Second operand 7 states. [2020-09-17 14:53:04,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:53:04,456 INFO L93 Difference]: Finished difference Result 894 states and 2283 transitions. [2020-09-17 14:53:04,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 14:53:04,457 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-09-17 14:53:04,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:53:04,463 INFO L225 Difference]: With dead ends: 894 [2020-09-17 14:53:04,463 INFO L226 Difference]: Without dead ends: 894 [2020-09-17 14:53:04,464 INFO L675 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 [2020-09-17 14:53:04,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-09-17 14:53:04,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 728. [2020-09-17 14:53:04,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2020-09-17 14:53:04,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1913 transitions. [2020-09-17 14:53:04,488 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1913 transitions. Word has length 14 [2020-09-17 14:53:04,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:53:04,489 INFO L479 AbstractCegarLoop]: Abstraction has 728 states and 1913 transitions. [2020-09-17 14:53:04,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 14:53:04,489 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1913 transitions. [2020-09-17 14:53:04,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-17 14:53:04,491 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:53:04,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:53:04,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 14:53:04,707 INFO L427 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:53:04,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:53:04,708 INFO L82 PathProgramCache]: Analyzing trace with hash -284826607, now seen corresponding path program 1 times [2020-09-17 14:53:04,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:53:04,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280311467] [2020-09-17 14:53:04,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:53:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:53:04,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:53:04,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280311467] [2020-09-17 14:53:04,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:53:04,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 14:53:04,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2141824991] [2020-09-17 14:53:04,819 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 14:53:04,822 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 14:53:04,828 INFO L274 McrAutomatonBuilder]: Finished intersection with 44 states and 69 transitions. [2020-09-17 14:53:04,829 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 14:53:04,936 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 14:53:04,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 14:53:04,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:53:04,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 14:53:04,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 14:53:04,937 INFO L87 Difference]: Start difference. First operand 728 states and 1913 transitions. Second operand 3 states. [2020-09-17 14:53:04,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:53:04,958 INFO L93 Difference]: Finished difference Result 375 states and 842 transitions. [2020-09-17 14:53:04,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 14:53:04,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-09-17 14:53:04,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:53:04,961 INFO L225 Difference]: With dead ends: 375 [2020-09-17 14:53:04,961 INFO L226 Difference]: Without dead ends: 375 [2020-09-17 14:53:04,962 INFO L675 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 [2020-09-17 14:53:04,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2020-09-17 14:53:04,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 355. [2020-09-17 14:53:04,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-17 14:53:04,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 792 transitions. [2020-09-17 14:53:04,972 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 792 transitions. Word has length 17 [2020-09-17 14:53:04,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:53:04,973 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 792 transitions. [2020-09-17 14:53:04,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 14:53:04,973 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 792 transitions. [2020-09-17 14:53:04,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 14:53:04,974 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:53:04,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:53:04,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 14:53:04,974 INFO L427 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:53:04,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:53:04,975 INFO L82 PathProgramCache]: Analyzing trace with hash 473969269, now seen corresponding path program 1 times [2020-09-17 14:53:04,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:53:04,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287064796] [2020-09-17 14:53:04,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:53:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:53:05,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:53:05,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287064796] [2020-09-17 14:53:05,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:53:05,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 14:53:05,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1426425427] [2020-09-17 14:53:05,058 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 14:53:05,060 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 14:53:05,069 INFO L274 McrAutomatonBuilder]: Finished intersection with 41 states and 62 transitions. [2020-09-17 14:53:05,069 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 14:53:05,160 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [9488#(<= 0 |t1Thread1of1ForFork0_inc_top_#t~post30|), 9489#(<= 0 ~top~0)] [2020-09-17 14:53:05,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 14:53:05,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:53:05,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 14:53:05,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 14:53:05,161 INFO L87 Difference]: Start difference. First operand 355 states and 792 transitions. Second operand 7 states. [2020-09-17 14:53:05,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:53:05,249 INFO L93 Difference]: Finished difference Result 458 states and 1008 transitions. [2020-09-17 14:53:05,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 14:53:05,250 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-09-17 14:53:05,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:53:05,253 INFO L225 Difference]: With dead ends: 458 [2020-09-17 14:53:05,253 INFO L226 Difference]: Without dead ends: 458 [2020-09-17 14:53:05,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-17 14:53:05,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-09-17 14:53:05,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 397. [2020-09-17 14:53:05,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-09-17 14:53:05,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 896 transitions. [2020-09-17 14:53:05,265 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 896 transitions. Word has length 18 [2020-09-17 14:53:05,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:53:05,266 INFO L479 AbstractCegarLoop]: Abstraction has 397 states and 896 transitions. [2020-09-17 14:53:05,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 14:53:05,266 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 896 transitions. [2020-09-17 14:53:05,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:53:05,267 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:53:05,267 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] [2020-09-17 14:53:05,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 14:53:05,268 INFO L427 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:53:05,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:53:05,268 INFO L82 PathProgramCache]: Analyzing trace with hash -2059233600, now seen corresponding path program 1 times [2020-09-17 14:53:05,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:53:05,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265670406] [2020-09-17 14:53:05,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:53:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:53:05,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:53:05,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265670406] [2020-09-17 14:53:05,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:53:05,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 14:53:05,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [809276423] [2020-09-17 14:53:05,545 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 14:53:05,551 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 14:53:05,559 INFO L274 McrAutomatonBuilder]: Finished intersection with 45 states and 66 transitions. [2020-09-17 14:53:05,559 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 14:53:05,608 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 14:53:05,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 14:53:05,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:53:05,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 14:53:05,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 14:53:05,609 INFO L87 Difference]: Start difference. First operand 397 states and 896 transitions. Second operand 9 states. [2020-09-17 14:53:05,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:53:05,961 INFO L93 Difference]: Finished difference Result 743 states and 1655 transitions. [2020-09-17 14:53:05,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-17 14:53:05,962 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-17 14:53:05,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:53:05,966 INFO L225 Difference]: With dead ends: 743 [2020-09-17 14:53:05,966 INFO L226 Difference]: Without dead ends: 743 [2020-09-17 14:53:05,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-17 14:53:05,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2020-09-17 14:53:05,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 537. [2020-09-17 14:53:05,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-09-17 14:53:05,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1237 transitions. [2020-09-17 14:53:05,985 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1237 transitions. Word has length 22 [2020-09-17 14:53:05,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:53:05,985 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 1237 transitions. [2020-09-17 14:53:05,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 14:53:05,985 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1237 transitions. [2020-09-17 14:53:05,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:53:05,986 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:53:05,987 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] [2020-09-17 14:53:05,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 14:53:05,987 INFO L427 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:53:05,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:53:05,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1187016382, now seen corresponding path program 2 times [2020-09-17 14:53:05,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:53:05,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112645763] [2020-09-17 14:53:05,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:53:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:53:06,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:53:06,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112645763] [2020-09-17 14:53:06,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:53:06,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 14:53:06,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1240108746] [2020-09-17 14:53:06,384 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 14:53:06,387 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 14:53:06,394 INFO L274 McrAutomatonBuilder]: Finished intersection with 35 states and 46 transitions. [2020-09-17 14:53:06,395 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 14:53:06,414 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 14:53:06,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 14:53:06,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:53:06,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 14:53:06,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-17 14:53:06,418 INFO L87 Difference]: Start difference. First operand 537 states and 1237 transitions. Second operand 9 states. [2020-09-17 14:53:06,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:53:06,703 INFO L93 Difference]: Finished difference Result 874 states and 1968 transitions. [2020-09-17 14:53:06,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-17 14:53:06,703 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-17 14:53:06,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:53:06,710 INFO L225 Difference]: With dead ends: 874 [2020-09-17 14:53:06,710 INFO L226 Difference]: Without dead ends: 874 [2020-09-17 14:53:06,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-17 14:53:06,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2020-09-17 14:53:06,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 523. [2020-09-17 14:53:06,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2020-09-17 14:53:06,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 1200 transitions. [2020-09-17 14:53:06,731 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 1200 transitions. Word has length 22 [2020-09-17 14:53:06,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:53:06,731 INFO L479 AbstractCegarLoop]: Abstraction has 523 states and 1200 transitions. [2020-09-17 14:53:06,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 14:53:06,732 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 1200 transitions. [2020-09-17 14:53:06,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:53:06,733 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:53:06,733 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-09-17 14:53:06,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-17 14:53:06,734 INFO L427 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:53:06,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:53:06,734 INFO L82 PathProgramCache]: Analyzing trace with hash -13506823, now seen corresponding path program 2 times [2020-09-17 14:53:06,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:53:06,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386781594] [2020-09-17 14:53:06,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:53:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:53:06,837 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:53:06,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386781594] [2020-09-17 14:53:06,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277480888] [2020-09-17 14:53:06,838 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 14:53:06,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-17 14:53:06,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 14:53:06,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 14:53:06,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 14:53:06,947 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:53:06,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 14:53:06,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-09-17 14:53:06,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [459608903] [2020-09-17 14:53:06,948 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 14:53:06,951 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 14:53:06,955 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 22 transitions. [2020-09-17 14:53:06,955 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 14:53:06,956 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 14:53:06,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 14:53:06,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:53:06,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 14:53:06,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-17 14:53:06,957 INFO L87 Difference]: Start difference. First operand 523 states and 1200 transitions. Second operand 9 states. [2020-09-17 14:53:07,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:53:07,032 INFO L93 Difference]: Finished difference Result 781 states and 1736 transitions. [2020-09-17 14:53:07,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 14:53:07,033 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-17 14:53:07,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:53:07,037 INFO L225 Difference]: With dead ends: 781 [2020-09-17 14:53:07,038 INFO L226 Difference]: Without dead ends: 781 [2020-09-17 14:53:07,038 INFO L675 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 [2020-09-17 14:53:07,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2020-09-17 14:53:07,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 615. [2020-09-17 14:53:07,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-09-17 14:53:07,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 1404 transitions. [2020-09-17 14:53:07,058 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 1404 transitions. Word has length 22 [2020-09-17 14:53:07,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:53:07,058 INFO L479 AbstractCegarLoop]: Abstraction has 615 states and 1404 transitions. [2020-09-17 14:53:07,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 14:53:07,058 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 1404 transitions. [2020-09-17 14:53:07,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 14:53:07,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:53:07,060 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] [2020-09-17 14:53:07,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 14:53:07,273 INFO L427 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:53:07,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:53:07,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1609274498, now seen corresponding path program 1 times [2020-09-17 14:53:07,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:53:07,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889278357] [2020-09-17 14:53:07,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:53:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:53:07,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:53:07,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889278357] [2020-09-17 14:53:07,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771862059] [2020-09-17 14:53:07,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 14:53:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:53:07,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 14:53:07,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 14:53:07,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 14:53:07,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-17 14:53:07,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2020-09-17 14:53:07,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1722257470] [2020-09-17 14:53:07,546 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 14:53:07,552 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 14:53:07,566 INFO L274 McrAutomatonBuilder]: Finished intersection with 48 states and 69 transitions. [2020-09-17 14:53:07,566 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 14:53:07,703 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [16682#(or (= 400 ~top~0) (<= ~top~0 0))] [2020-09-17 14:53:07,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 14:53:07,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:53:07,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 14:53:07,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 14:53:07,705 INFO L87 Difference]: Start difference. First operand 615 states and 1404 transitions. Second operand 7 states. [2020-09-17 14:53:07,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:53:07,814 INFO L93 Difference]: Finished difference Result 1008 states and 2266 transitions. [2020-09-17 14:53:07,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-17 14:53:07,814 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-09-17 14:53:07,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:53:07,820 INFO L225 Difference]: With dead ends: 1008 [2020-09-17 14:53:07,820 INFO L226 Difference]: Without dead ends: 1008 [2020-09-17 14:53:07,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-09-17 14:53:07,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2020-09-17 14:53:07,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 726. [2020-09-17 14:53:07,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2020-09-17 14:53:07,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1696 transitions. [2020-09-17 14:53:07,843 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1696 transitions. Word has length 25 [2020-09-17 14:53:07,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:53:07,843 INFO L479 AbstractCegarLoop]: Abstraction has 726 states and 1696 transitions. [2020-09-17 14:53:07,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 14:53:07,844 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1696 transitions. [2020-09-17 14:53:07,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-17 14:53:07,845 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:53:07,846 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] [2020-09-17 14:53:08,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-09-17 14:53:08,061 INFO L427 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:53:08,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:53:08,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1648397582, now seen corresponding path program 1 times [2020-09-17 14:53:08,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:53:08,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903999917] [2020-09-17 14:53:08,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:53:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 14:53:08,104 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 14:53:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 14:53:08,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 14:53:08,179 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-17 14:53:08,179 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-17 14:53:08,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-17 14:53:08,180 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-09-17 14:53:08,181 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-09-17 14:53:08,181 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-09-17 14:53:08,188 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [572] [572] L971-6-->L939: Formula: (let ((.cse1 (mod t1Thread1of1ForFork0_~tmp~0_Out769297011 4294967296)) (.cse0 (select |#pthreadsMutex_In769297011| |~#m~0.base_In769297011|))) (and (= |t1Thread1of1ForFork0_push_#in~stack.base_Out769297011| |~#arr~0.base_In769297011|) (= (select .cse0 |~#m~0.offset_In769297011|) 0) (= t1Thread1of1ForFork0_~tmp~0_Out769297011 |t1Thread1of1ForFork0_#t~nondet43_In769297011|) (= 1 |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out769297011|) (= .cse1 |t1Thread1of1ForFork0_push_#in~x_Out769297011|) (< t1Thread1of1ForFork0_~i~0_In769297011 400) (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out769297011 |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out769297011|) (< .cse1 400) (= |~#arr~0.offset_In769297011| |t1Thread1of1ForFork0_push_#in~stack.offset_Out769297011|) (= |#pthreadsMutex_Out769297011| (store |#pthreadsMutex_In769297011| |~#m~0.base_In769297011| (store .cse0 |~#m~0.offset_In769297011| 1))))) InVars {~#arr~0.offset=|~#arr~0.offset_In769297011|, #pthreadsMutex=|#pthreadsMutex_In769297011|, ~#m~0.base=|~#m~0.base_In769297011|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In769297011, ~#m~0.offset=|~#m~0.offset_In769297011|, ~#arr~0.base=|~#arr~0.base_In769297011|, t1Thread1of1ForFork0_#t~nondet43=|t1Thread1of1ForFork0_#t~nondet43_In769297011|} OutVars{~#arr~0.offset=|~#arr~0.offset_In769297011|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out769297011|, #pthreadsMutex=|#pthreadsMutex_Out769297011|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In769297011, t1Thread1of1ForFork0_push_~stack.offset=t1Thread1of1ForFork0_push_~stack.offset_Out769297011, t1Thread1of1ForFork0_push_#t~ret35=|t1Thread1of1ForFork0_push_#t~ret35_Out769297011|, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out769297011|, ~#m~0.base=|~#m~0.base_In769297011|, t1Thread1of1ForFork0_push_#t~nondet33=|t1Thread1of1ForFork0_push_#t~nondet33_Out769297011|, t1Thread1of1ForFork0_push_~stack.base=t1Thread1of1ForFork0_push_~stack.base_Out769297011, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out769297011, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out769297011|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_Out769297011, t1Thread1of1ForFork0_push_~x=t1Thread1of1ForFork0_push_~x_Out769297011, ~#m~0.offset=|~#m~0.offset_In769297011|, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out769297011|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out769297011|, t1Thread1of1ForFork0_#t~nondet42=|t1Thread1of1ForFork0_#t~nondet42_Out769297011|, ~#arr~0.base=|~#arr~0.base_In769297011|, t1Thread1of1ForFork0_#t~nondet43=|t1Thread1of1ForFork0_#t~nondet43_Out769297011|} 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 [2020-09-17 14:53:08,191 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [561] [561] L976-2-->L979: Formula: (and (<= |t1Thread1of1ForFork0_#t~ret44_In-287559956| 2147483647) (not (= (- 1) |t1Thread1of1ForFork0_#t~ret44_In-287559956|)) (= ~flag~0_Out-287559956 1) (<= 0 (+ |t1Thread1of1ForFork0_#t~ret44_In-287559956| 2147483648))) InVars {t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_In-287559956|} OutVars{t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_Out-287559956|, ~flag~0=~flag~0_Out-287559956} AuxVars[] AssignedVars[t1Thread1of1ForFork0_#t~ret44, ~flag~0] because there is no mapped edge [2020-09-17 14:53:08,197 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [573] [573] L991-3-->L986-6: Formula: (and (<= |t2Thread1of1ForFork1_#t~ret47_In1314174554| 2147483647) (= (+ t2Thread1of1ForFork1_~i~1_Out1314174554 (- 1)) t2Thread1of1ForFork1_~i~1_In1314174554) (not (= (- 2) |t2Thread1of1ForFork1_#t~ret47_In1314174554|)) (<= 0 (+ |t2Thread1of1ForFork1_#t~ret47_In1314174554| 2147483648)) (= (store |#pthreadsMutex_In1314174554| |~#m~0.base_In1314174554| (store (select |#pthreadsMutex_In1314174554| |~#m~0.base_In1314174554|) |~#m~0.offset_In1314174554| 0)) |#pthreadsMutex_Out1314174554|)) InVars {#pthreadsMutex=|#pthreadsMutex_In1314174554|, ~#m~0.base=|~#m~0.base_In1314174554|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_In1314174554|, ~#m~0.offset=|~#m~0.offset_In1314174554|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In1314174554} OutVars{#pthreadsMutex=|#pthreadsMutex_Out1314174554|, ~#m~0.base=|~#m~0.base_In1314174554|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_Out1314174554|, ~#m~0.offset=|~#m~0.offset_In1314174554|, t2Thread1of1ForFork1_#t~post45=|t2Thread1of1ForFork1_#t~post45_Out1314174554|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out1314174554} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_#t~ret47, t2Thread1of1ForFork1_#t~post45, t2Thread1of1ForFork1_~i~1] because there is no mapped edge [2020-09-17 14:53:08,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 02:53:08 BasicIcfg [2020-09-17 14:53:08,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 14:53:08,246 INFO L168 Benchmark]: Toolchain (without parser) took 10991.51 ms. Allocated memory was 140.5 MB in the beginning and 315.1 MB in the end (delta: 174.6 MB). Free memory was 102.0 MB in the beginning and 166.3 MB in the end (delta: -64.3 MB). Peak memory consumption was 110.3 MB. Max. memory is 7.1 GB. [2020-09-17 14:53:08,247 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-17 14:53:08,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 953.88 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 134.9 MB in the end (delta: -33.5 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-09-17 14:53:08,248 INFO L168 Benchmark]: Boogie Procedure Inliner took 135.16 ms. Allocated memory is still 203.4 MB. Free memory was 134.9 MB in the beginning and 131.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-09-17 14:53:08,249 INFO L168 Benchmark]: Boogie Preprocessor took 80.15 ms. Allocated memory is still 203.4 MB. Free memory was 131.7 MB in the beginning and 129.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-17 14:53:08,249 INFO L168 Benchmark]: RCFGBuilder took 653.77 ms. Allocated memory is still 203.4 MB. Free memory was 129.7 MB in the beginning and 96.8 MB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2020-09-17 14:53:08,250 INFO L168 Benchmark]: TraceAbstraction took 9157.62 ms. Allocated memory was 203.4 MB in the beginning and 315.1 MB in the end (delta: 111.7 MB). Free memory was 96.2 MB in the beginning and 166.3 MB in the end (delta: -70.1 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB. [2020-09-17 14:53:08,256 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 953.88 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 134.9 MB in the end (delta: -33.5 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 135.16 ms. Allocated memory is still 203.4 MB. Free memory was 134.9 MB in the beginning and 131.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.15 ms. Allocated memory is still 203.4 MB. Free memory was 131.7 MB in the beginning and 129.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 653.77 ms. Allocated memory is still 203.4 MB. Free memory was 129.7 MB in the beginning and 96.8 MB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9157.62 ms. Allocated memory was 203.4 MB in the beginning and 315.1 MB in the end (delta: 111.7 MB). Free memory was 96.2 MB in the beginning and 166.3 MB in the end (delta: -70.1 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.7s, 140 ProgramPointsBefore, 41 ProgramPointsAfterwards, 145 TransitionsBefore, 41 TransitionsAfterwards, 6532 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 5 ChoiceCompositions, 3614 VarBasedMoverChecksPositive, 53 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 8325 CheckedPairsTotal, 124 TotalNumberOfCompositions - 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: 8.8s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 476 SDtfs, 623 SDslu, 1089 SDs, 0 SdLazy, 478 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 118 SyntacticMatches, 15 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.8s 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: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 1332 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s 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...