/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/concurrent/pthreads/globalVariableMultipleThreads.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 03:03:57,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 03:03:57,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 03:03:57,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 03:03:57,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 03:03:57,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 03:03:57,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 03:03:57,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 03:03:57,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 03:03:57,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 03:03:57,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 03:03:57,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 03:03:57,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 03:03:57,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 03:03:57,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 03:03:57,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 03:03:57,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 03:03:57,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 03:03:57,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 03:03:57,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 03:03:57,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 03:03:57,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 03:03:57,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 03:03:57,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 03:03:57,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-18 03:03:57,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 03:03:57,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 03:03:57,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 03:03:57,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 03:03:57,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 03:03:57,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 03:03:57,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 03:03:57,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 03:03:57,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 03:03:57,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 03:03:57,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 03:03:57,607 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 [2020-09-18 03:03:57,670 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 03:03:57,673 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 03:03:57,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 03:03:57,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 03:03:57,675 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 03:03:57,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 03:03:57,676 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 03:03:57,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 03:03:57,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 03:03:57,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 03:03:57,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 03:03:57,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 03:03:57,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 03:03:57,677 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 03:03:57,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 03:03:57,677 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 03:03:57,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 03:03:57,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 03:03:57,678 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 03:03:57,678 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 03:03:57,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 03:03:57,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 03:03:57,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 03:03:57,679 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 03:03:57,679 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 03:03:57,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 03:03:57,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 03:03:57,680 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 03:03:57,680 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 03:03:57,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 03:03:57,681 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 03:03:58,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 03:03:58,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 03:03:58,211 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 03:03:58,213 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 03:03:58,214 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 03:03:58,217 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c [2020-09-18 03:03:58,317 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a659df650/2b92968713be421fb39b30658bfb0db3/FLAG710c515ea [2020-09-18 03:03:58,877 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 03:03:58,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c [2020-09-18 03:03:58,878 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-09-18 03:03:58,879 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2020-09-18 03:03:58,879 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-09-18 03:03:58,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a659df650/2b92968713be421fb39b30658bfb0db3/FLAG710c515ea [2020-09-18 03:03:59,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a659df650/2b92968713be421fb39b30658bfb0db3 [2020-09-18 03:03:59,224 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 03:03:59,230 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 03:03:59,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 03:03:59,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 03:03:59,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 03:03:59,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 03:03:59" (1/1) ... [2020-09-18 03:03:59,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c55c535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:03:59, skipping insertion in model container [2020-09-18 03:03:59,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 03:03:59" (1/1) ... [2020-09-18 03:03:59,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 03:03:59,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 03:03:59,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 03:03:59,530 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 03:03:59,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 03:03:59,645 INFO L208 MainTranslator]: Completed translation [2020-09-18 03:03:59,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:03:59 WrapperNode [2020-09-18 03:03:59,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 03:03:59,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 03:03:59,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 03:03:59,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 03:03:59,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:03:59" (1/1) ... [2020-09-18 03:03:59,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:03:59" (1/1) ... [2020-09-18 03:03:59,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 03:03:59,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 03:03:59,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 03:03:59,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 03:03:59,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:03:59" (1/1) ... [2020-09-18 03:03:59,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:03:59" (1/1) ... [2020-09-18 03:03:59,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:03:59" (1/1) ... [2020-09-18 03:03:59,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:03:59" (1/1) ... [2020-09-18 03:03:59,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:03:59" (1/1) ... [2020-09-18 03:03:59,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:03:59" (1/1) ... [2020-09-18 03:03:59,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:03:59" (1/1) ... [2020-09-18 03:03:59,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 03:03:59,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 03:03:59,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 03:03:59,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 03:03:59,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:03:59" (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 [2020-09-18 03:03:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 03:03:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 03:03:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 03:03:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-18 03:03:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 03:03:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure myThread [2020-09-18 03:03:59,805 INFO L138 BoogieDeclarations]: Found implementation of procedure myThread [2020-09-18 03:03:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 03:03:59,808 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 03:04:00,095 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 03:04:00,095 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-18 03:04:00,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 03:04:00 BoogieIcfgContainer [2020-09-18 03:04:00,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 03:04:00,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 03:04:00,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 03:04:00,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 03:04:00,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 03:03:59" (1/3) ... [2020-09-18 03:04:00,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748fd697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 03:04:00, skipping insertion in model container [2020-09-18 03:04:00,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:03:59" (2/3) ... [2020-09-18 03:04:00,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748fd697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 03:04:00, skipping insertion in model container [2020-09-18 03:04:00,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 03:04:00" (3/3) ... [2020-09-18 03:04:00,112 INFO L109 eAbstractionObserver]: Analyzing ICFG globalVariableMultipleThreads.c [2020-09-18 03:04:00,126 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 03:04:00,126 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 03:04:00,137 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 03:04:00,138 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 03:04:00,174 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,174 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,174 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,175 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,175 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,175 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,175 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,176 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,176 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,176 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,177 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,177 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,177 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,177 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,178 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,178 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,178 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,178 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,179 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,179 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,179 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,184 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,184 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,184 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,185 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,185 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,185 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,185 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,186 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,186 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,186 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,186 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,187 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:00,223 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-18 03:04:00,247 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 03:04:00,248 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 03:04:00,248 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 03:04:00,248 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 03:04:00,248 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 03:04:00,248 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 03:04:00,248 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 03:04:00,249 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 03:04:00,265 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 56 transitions, 120 flow [2020-09-18 03:04:00,267 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 120 flow [2020-09-18 03:04:00,315 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2020-09-18 03:04:00,315 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2020-09-18 03:04:00,320 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 64 events. 2/64 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 34. Up to 4 conditions per place. [2020-09-18 03:04:00,324 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 120 flow [2020-09-18 03:04:00,351 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2020-09-18 03:04:00,352 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2020-09-18 03:04:00,357 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 64 events. 2/64 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 34. Up to 4 conditions per place. [2020-09-18 03:04:00,359 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 600 [2020-09-18 03:04:00,360 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 03:04:01,455 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-09-18 03:04:01,727 INFO L206 etLargeBlockEncoding]: Checked pairs total: 475 [2020-09-18 03:04:01,728 INFO L214 etLargeBlockEncoding]: Total number of compositions: 51 [2020-09-18 03:04:01,733 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 10 transitions, 28 flow [2020-09-18 03:04:01,745 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-09-18 03:04:01,748 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-09-18 03:04:01,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-18 03:04:01,757 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 03:04:01,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-18 03:04:01,759 INFO L427 AbstractCegarLoop]: === Iteration 1 === [myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-18 03:04:01,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 03:04:01,767 INFO L82 PathProgramCache]: Analyzing trace with hash 6727753, now seen corresponding path program 1 times [2020-09-18 03:04:01,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 03:04:01,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783527230] [2020-09-18 03:04:01,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 03:04:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 03:04:01,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 03:04:01,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783527230] [2020-09-18 03:04:01,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 03:04:01,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-18 03:04:01,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1647177887] [2020-09-18 03:04:01,998 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 03:04:02,001 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 03:04:02,018 INFO L274 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-09-18 03:04:02,018 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 03:04:02,020 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 03:04:02,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 03:04:02,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 03:04:02,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 03:04:02,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 03:04:02,045 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2020-09-18 03:04:02,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 03:04:02,060 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2020-09-18 03:04:02,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 03:04:02,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-09-18 03:04:02,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 03:04:02,075 INFO L225 Difference]: With dead ends: 16 [2020-09-18 03:04:02,075 INFO L226 Difference]: Without dead ends: 11 [2020-09-18 03:04:02,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 03:04:02,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-09-18 03:04:02,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-09-18 03:04:02,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-09-18 03:04:02,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-09-18 03:04:02,119 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-09-18 03:04:02,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 03:04:02,119 INFO L479 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-09-18 03:04:02,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 03:04:02,120 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-09-18 03:04:02,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-18 03:04:02,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 03:04:02,121 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-09-18 03:04:02,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 03:04:02,121 INFO L427 AbstractCegarLoop]: === Iteration 2 === [myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-18 03:04:02,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 03:04:02,122 INFO L82 PathProgramCache]: Analyzing trace with hash -2124565089, now seen corresponding path program 1 times [2020-09-18 03:04:02,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 03:04:02,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110790647] [2020-09-18 03:04:02,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 03:04:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-18 03:04:02,154 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-18 03:04:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-18 03:04:02,179 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-18 03:04:02,218 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-18 03:04:02,218 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-18 03:04:02,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 03:04:02,222 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-18 03:04:02,222 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-09-18 03:04:02,241 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,242 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,242 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,242 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,243 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,243 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,243 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,244 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,244 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,244 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,245 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,245 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,245 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,245 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,246 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,246 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,246 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,246 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,247 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,247 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,247 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,248 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,248 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,248 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,249 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,249 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,249 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,249 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,249 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,250 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,250 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,250 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,251 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,251 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,251 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,251 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,251 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,252 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,252 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,252 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,252 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,253 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,253 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,254 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,254 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,254 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,254 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,255 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,255 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,255 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,255 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,256 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,256 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,256 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,259 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,260 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,260 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,260 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,260 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,261 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,261 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,261 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,261 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,262 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,262 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,262 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:02,268 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-18 03:04:02,269 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 03:04:02,269 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 03:04:02,269 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 03:04:02,269 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 03:04:02,269 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 03:04:02,269 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 03:04:02,270 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 03:04:02,270 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 03:04:02,273 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 174 flow [2020-09-18 03:04:02,273 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 174 flow [2020-09-18 03:04:02,305 INFO L129 PetriNetUnfolder]: 3/117 cut-off events. [2020-09-18 03:04:02,306 INFO L130 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2020-09-18 03:04:02,307 INFO L80 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 117 events. 3/117 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 198 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 66. Up to 6 conditions per place. [2020-09-18 03:04:02,311 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 174 flow [2020-09-18 03:04:02,338 INFO L129 PetriNetUnfolder]: 3/117 cut-off events. [2020-09-18 03:04:02,338 INFO L130 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2020-09-18 03:04:02,339 INFO L80 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 117 events. 3/117 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 198 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 66. Up to 6 conditions per place. [2020-09-18 03:04:02,343 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2760 [2020-09-18 03:04:02,343 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 03:04:03,141 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-09-18 03:04:03,358 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6323 [2020-09-18 03:04:03,358 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2020-09-18 03:04:03,359 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 34 transitions, 86 flow [2020-09-18 03:04:03,431 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1003 states. [2020-09-18 03:04:03,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states. [2020-09-18 03:04:03,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 03:04:03,436 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 03:04:03,436 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-09-18 03:04:03,437 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-18 03:04:03,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 03:04:03,438 INFO L82 PathProgramCache]: Analyzing trace with hash 2108723477, now seen corresponding path program 1 times [2020-09-18 03:04:03,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 03:04:03,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379186142] [2020-09-18 03:04:03,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 03:04:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-18 03:04:03,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-18 03:04:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-18 03:04:03,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-18 03:04:03,591 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-18 03:04:03,591 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-18 03:04:03,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 03:04:03,595 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-18 03:04:03,596 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-09-18 03:04:03,608 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,609 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,609 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,609 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,609 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,610 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,610 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,611 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,611 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,611 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,611 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,611 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,613 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,613 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,613 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,613 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,614 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,614 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,614 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,614 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,614 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,619 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,620 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,620 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,620 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,620 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,620 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,620 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,621 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,621 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,621 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,621 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,621 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,622 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,622 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,622 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,622 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,622 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,623 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,623 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,623 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,623 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,624 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,624 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,624 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,624 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,625 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,625 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,625 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,625 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,625 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,626 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,626 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,626 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,626 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,626 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,626 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,627 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,627 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,627 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,627 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,627 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,628 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,628 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,629 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,629 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,629 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,629 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,629 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,629 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,630 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,630 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,630 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,630 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,630 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,632 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,633 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,633 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,633 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,633 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,633 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,634 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,634 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,634 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,634 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,634 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,634 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,636 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,637 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,637 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,637 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,637 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,637 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,638 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,638 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,638 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,638 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,638 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,638 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 03:04:03,642 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-18 03:04:03,643 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 03:04:03,643 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 03:04:03,643 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 03:04:03,643 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 03:04:03,643 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 03:04:03,643 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 03:04:03,644 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 03:04:03,644 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 03:04:03,646 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 100 transitions, 230 flow [2020-09-18 03:04:03,646 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 230 flow [2020-09-18 03:04:03,705 INFO L129 PetriNetUnfolder]: 4/179 cut-off events. [2020-09-18 03:04:03,705 INFO L130 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2020-09-18 03:04:03,707 INFO L80 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 179 events. 4/179 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 503 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2020-09-18 03:04:03,716 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 230 flow [2020-09-18 03:04:03,750 INFO L129 PetriNetUnfolder]: 4/179 cut-off events. [2020-09-18 03:04:03,750 INFO L130 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2020-09-18 03:04:03,752 INFO L80 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 179 events. 4/179 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 503 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2020-09-18 03:04:03,759 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5520 [2020-09-18 03:04:03,760 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 03:04:04,675 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-09-18 03:04:04,774 INFO L206 etLargeBlockEncoding]: Checked pairs total: 12959 [2020-09-18 03:04:04,775 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-09-18 03:04:04,775 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 47 transitions, 124 flow [2020-09-18 03:04:05,754 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12523 states. [2020-09-18 03:04:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand 12523 states. [2020-09-18 03:04:05,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 03:04:05,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 03:04:05,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 03:04:05,759 INFO L427 AbstractCegarLoop]: === Iteration 1 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-18 03:04:05,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 03:04:05,760 INFO L82 PathProgramCache]: Analyzing trace with hash 2074725494, now seen corresponding path program 1 times [2020-09-18 03:04:05,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 03:04:05,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537965551] [2020-09-18 03:04:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 03:04:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 03:04:05,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 03:04:05,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537965551] [2020-09-18 03:04:05,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 03:04:05,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 03:04:05,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1322035113] [2020-09-18 03:04:05,815 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 03:04:05,816 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 03:04:05,821 INFO L274 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-09-18 03:04:05,821 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 03:04:05,821 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 03:04:05,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 03:04:05,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 03:04:05,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 03:04:05,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-18 03:04:05,823 INFO L87 Difference]: Start difference. First operand 12523 states. Second operand 5 states. [2020-09-18 03:04:06,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 03:04:06,129 INFO L93 Difference]: Finished difference Result 16053 states and 52167 transitions. [2020-09-18 03:04:06,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 03:04:06,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-18 03:04:06,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 03:04:06,282 INFO L225 Difference]: With dead ends: 16053 [2020-09-18 03:04:06,283 INFO L226 Difference]: Without dead ends: 15826 [2020-09-18 03:04:06,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-18 03:04:06,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15826 states. [2020-09-18 03:04:07,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15826 to 13894. [2020-09-18 03:04:07,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13894 states. [2020-09-18 03:04:07,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13894 states to 13894 states and 46691 transitions. [2020-09-18 03:04:07,199 INFO L78 Accepts]: Start accepts. Automaton has 13894 states and 46691 transitions. Word has length 13 [2020-09-18 03:04:07,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 03:04:07,199 INFO L479 AbstractCegarLoop]: Abstraction has 13894 states and 46691 transitions. [2020-09-18 03:04:07,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 03:04:07,200 INFO L276 IsEmpty]: Start isEmpty. Operand 13894 states and 46691 transitions. [2020-09-18 03:04:07,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-18 03:04:07,203 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 03:04:07,203 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-09-18 03:04:07,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 03:04:07,204 INFO L427 AbstractCegarLoop]: === Iteration 2 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-18 03:04:07,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 03:04:07,204 INFO L82 PathProgramCache]: Analyzing trace with hash -694215649, now seen corresponding path program 1 times [2020-09-18 03:04:07,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 03:04:07,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630822156] [2020-09-18 03:04:07,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 03:04:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 03:04:07,374 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 03:04:07,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630822156] [2020-09-18 03:04:07,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361815991] [2020-09-18 03:04:07,375 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 [2020-09-18 03:04:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 03:04:07,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 9 conjunts are in the unsatisfiable core [2020-09-18 03:04:07,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-18 03:04:07,525 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2020-09-18 03:04:07,538 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-18 03:04:07,572 INFO L625 ElimStorePlain]: treesize reduction 31, result has 39.2 percent of original size [2020-09-18 03:04:07,583 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-09-18 03:04:07,583 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-09-18 03:04:07,591 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-18 03:04:07,593 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-18 03:04:07,593 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:26, output treesize:12 [2020-09-18 03:04:07,612 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-09-18 03:04:07,613 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-18 03:04:07,620 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-18 03:04:07,621 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-18 03:04:07,621 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2020-09-18 03:04:07,649 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-09-18 03:04:07,651 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-18 03:04:07,661 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-18 03:04:07,662 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-18 03:04:07,662 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2020-09-18 03:04:07,685 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2020-09-18 03:04:07,687 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-18 03:04:07,693 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-18 03:04:07,694 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-18 03:04:07,694 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2020-09-18 03:04:07,702 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-09-18 03:04:07,703 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-18 03:04:07,711 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-18 03:04:07,711 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-18 03:04:07,711 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:19 [2020-09-18 03:04:07,754 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2020-09-18 03:04:07,758 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-18 03:04:07,765 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-18 03:04:07,768 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-09-18 03:04:07,769 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2020-09-18 03:04:07,828 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-09-18 03:04:07,830 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-18 03:04:07,837 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-18 03:04:07,840 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-09-18 03:04:07,841 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:21 [2020-09-18 03:04:07,878 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 03:04:07,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-18 03:04:07,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2020-09-18 03:04:07,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [517131330] [2020-09-18 03:04:07,880 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 03:04:07,885 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 03:04:07,892 INFO L274 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-09-18 03:04:07,892 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 03:04:07,893 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 03:04:07,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-18 03:04:07,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 03:04:07,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-18 03:04:07,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-18 03:04:07,895 INFO L87 Difference]: Start difference. First operand 13894 states and 46691 transitions. Second operand 12 states. [2020-09-18 03:04:08,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 03:04:08,822 INFO L93 Difference]: Finished difference Result 9897 states and 32288 transitions. [2020-09-18 03:04:08,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-18 03:04:08,822 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-09-18 03:04:08,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 03:04:08,863 INFO L225 Difference]: With dead ends: 9897 [2020-09-18 03:04:08,863 INFO L226 Difference]: Without dead ends: 9786 [2020-09-18 03:04:08,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-09-18 03:04:08,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9786 states. [2020-09-18 03:04:09,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9786 to 9786. [2020-09-18 03:04:09,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9786 states. [2020-09-18 03:04:09,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9786 states to 9786 states and 31881 transitions. [2020-09-18 03:04:09,229 INFO L78 Accepts]: Start accepts. Automaton has 9786 states and 31881 transitions. Word has length 15 [2020-09-18 03:04:09,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 03:04:09,231 INFO L479 AbstractCegarLoop]: Abstraction has 9786 states and 31881 transitions. [2020-09-18 03:04:09,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-18 03:04:09,231 INFO L276 IsEmpty]: Start isEmpty. Operand 9786 states and 31881 transitions. [2020-09-18 03:04:09,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-18 03:04:09,235 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 03:04:09,235 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 03:04:09,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-18 03:04:09,449 INFO L427 AbstractCegarLoop]: === Iteration 3 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-18 03:04:09,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 03:04:09,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1598600700, now seen corresponding path program 1 times [2020-09-18 03:04:09,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 03:04:09,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130074489] [2020-09-18 03:04:09,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 03:04:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-18 03:04:09,473 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-18 03:04:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-18 03:04:09,493 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-18 03:04:09,502 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-18 03:04:09,503 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-18 03:04:09,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-18 03:04:09,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 03:04:09 BasicIcfg [2020-09-18 03:04:09,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 03:04:09,559 INFO L168 Benchmark]: Toolchain (without parser) took 10333.46 ms. Allocated memory was 137.9 MB in the beginning and 449.8 MB in the end (delta: 312.0 MB). Free memory was 98.6 MB in the beginning and 165.1 MB in the end (delta: -66.5 MB). Peak memory consumption was 245.4 MB. Max. memory is 7.1 GB. [2020-09-18 03:04:09,560 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-18 03:04:09,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.26 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 97.7 MB in the beginning and 177.9 MB in the end (delta: -80.2 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-09-18 03:04:09,561 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.33 ms. Allocated memory is still 199.8 MB. Free memory was 177.9 MB in the beginning and 175.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 03:04:09,562 INFO L168 Benchmark]: Boogie Preprocessor took 26.08 ms. Allocated memory is still 199.8 MB. Free memory was 175.9 MB in the beginning and 174.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-18 03:04:09,563 INFO L168 Benchmark]: RCFGBuilder took 386.51 ms. Allocated memory is still 199.8 MB. Free memory was 174.6 MB in the beginning and 157.1 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2020-09-18 03:04:09,564 INFO L168 Benchmark]: TraceAbstraction took 9453.98 ms. Allocated memory was 199.8 MB in the beginning and 449.8 MB in the end (delta: 250.1 MB). Free memory was 157.1 MB in the beginning and 165.1 MB in the end (delta: -8.0 MB). Peak memory consumption was 242.1 MB. Max. memory is 7.1 GB. [2020-09-18 03:04:09,568 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 414.26 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 97.7 MB in the beginning and 177.9 MB in the end (delta: -80.2 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.33 ms. Allocated memory is still 199.8 MB. Free memory was 177.9 MB in the beginning and 175.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.08 ms. Allocated memory is still 199.8 MB. Free memory was 175.9 MB in the beginning and 174.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 386.51 ms. Allocated memory is still 199.8 MB. Free memory was 174.6 MB in the beginning and 157.1 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9453.98 ms. Allocated memory was 199.8 MB in the beginning and 449.8 MB in the end (delta: 250.1 MB). Free memory was 157.1 MB in the beginning and 165.1 MB in the end (delta: -8.0 MB). Peak memory consumption was 242.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 58 ProgramPointsBefore, 13 ProgramPointsAfterwards, 56 TransitionsBefore, 10 TransitionsAfterwards, 600 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 309 VarBasedMoverChecksPositive, 3 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 475 CheckedPairsTotal, 51 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 81 ProgramPointsBefore, 38 ProgramPointsAfterwards, 78 TransitionsBefore, 34 TransitionsAfterwards, 2760 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 1229 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 6323 CheckedPairsTotal, 47 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 104 ProgramPointsBefore, 52 ProgramPointsAfterwards, 100 TransitionsBefore, 47 TransitionsAfterwards, 5520 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 2487 VarBasedMoverChecksPositive, 67 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 12959 CheckedPairsTotal, 58 TotalNumberOfCompositions - CounterExampleResult [Line: 25]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int g = 0; [L21] 0 static int s = 0; [L30] 0 int i; [L31] 0 pthread_t tid; [L34] 0 i = 0 VAL [g=0, s=0] [L34] EXPR 0 \read(i) [L34] COND TRUE 0 i < 3 [L35] FCALL, FORK 0 pthread_create(&tid, NULL, myThread, (void *)&i) VAL [g=0, s=0, vargp={3:0}] [L20] 1 int *myid = (int *)vargp; [L22] 1 ++s [L22] 1 ++g VAL [g=1, myid={3:0}, s=1, vargp={3:0}, vargp={3:0}] [L24] 1 \read(*myid) VAL [\read(*myid)=0, g=1, myid={3:0}, s=1, vargp={3:0}, vargp={3:0}] [L34] EXPR 0 \read(i) [L34] 0 i++ [L34] EXPR 0 \read(i) [L34] COND TRUE 0 i < 3 [L35] FCALL, FORK 0 pthread_create(&tid, NULL, myThread, (void *)&i) VAL [\read(*myid)=0, g=1, myid={3:0}, s=1, vargp={3:0}, vargp={3:0}] [L20] 2 int *myid = (int *)vargp; [L22] 2 ++s VAL [++s=2, \read(*myid)=0, g=1, myid={3:0}, s=1, vargp={3:0}, vargp={3:0}] [L24] 1 ++s VAL [++s=2, ++s=2, \read(*myid)=0, g=1, myid={3:0}, s=1, vargp={3:0}, vargp={3:0}] [L22] 2 ++s VAL [++s=2, \read(*myid)=0, g=1, myid={3:0}, s=2, vargp={3:0}, vargp={3:0}] [L24] 1 ++s VAL [++s=2, \read(*myid)=0, g=1, myid={3:0}, s=3, vargp={3:0}, vargp={3:0}] [L24] 1 ++g [L25] 1 CodeAnnotStmt[Assertion] VAL [g=2, myid={3:0}, s=3, vargp={3:0}, vargp={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 3 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.1s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 137 SDtfs, 270 SDslu, 628 SDs, 0 SdLazy, 205 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13894occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 1932 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 43 ConstructedInterpolants, 4 QuantifiedInterpolants, 5863 SizeOfPredicates, 5 NumberOfNonLiveVariables, 62 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 7/36 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...