/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 18:37:46,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 18:37:46,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 18:37:46,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 18:37:46,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 18:37:46,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 18:37:46,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 18:37:46,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 18:37:46,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 18:37:46,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 18:37:46,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 18:37:46,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 18:37:46,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 18:37:46,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 18:37:46,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 18:37:46,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 18:37:46,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 18:37:46,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 18:37:46,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 18:37:46,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 18:37:46,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 18:37:46,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 18:37:46,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 18:37:46,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 18:37:46,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 18:37:46,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 18:37:46,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 18:37:46,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 18:37:46,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 18:37:46,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 18:37:46,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 18:37:46,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 18:37:46,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 18:37:46,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 18:37:46,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 18:37:46,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 18:37:46,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 18:37:46,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 18:37:46,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 18:37:46,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 18:37:46,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 18:37:46,445 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-04-17 18:37:46,461 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 18:37:46,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 18:37:46,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 18:37:46,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 18:37:46,463 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 18:37:46,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 18:37:46,464 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 18:37:46,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 18:37:46,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 18:37:46,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 18:37:46,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 18:37:46,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 18:37:46,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 18:37:46,465 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 18:37:46,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 18:37:46,465 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 18:37:46,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 18:37:46,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 18:37:46,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 18:37:46,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 18:37:46,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 18:37:46,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 18:37:46,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 18:37:46,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 18:37:46,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 18:37:46,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 18:37:46,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 18:37:46,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 18:37:46,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-04-17 18:37:46,468 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 18:37:46,756 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 18:37:46,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 18:37:46,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 18:37:46,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 18:37:46,783 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 18:37:46,784 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c [2020-04-17 18:37:46,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48486bba4/fc0f2edfac4d42e98f054643dddd79de/FLAG051d03205 [2020-04-17 18:37:47,408 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 18:37:47,408 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c [2020-04-17 18:37:47,409 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-04-17 18:37:47,409 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2020-04-17 18:37:47,409 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-04-17 18:37:47,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48486bba4/fc0f2edfac4d42e98f054643dddd79de/FLAG051d03205 [2020-04-17 18:37:47,736 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48486bba4/fc0f2edfac4d42e98f054643dddd79de [2020-04-17 18:37:47,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 18:37:47,770 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 18:37:47,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 18:37:47,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 18:37:47,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 18:37:47,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:37:47" (1/1) ... [2020-04-17 18:37:47,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36abf787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:37:47, skipping insertion in model container [2020-04-17 18:37:47,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:37:47" (1/1) ... [2020-04-17 18:37:47,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 18:37:47,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 18:37:47,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:37:48,077 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 18:37:48,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:37:48,111 INFO L208 MainTranslator]: Completed translation [2020-04-17 18:37:48,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:37:48 WrapperNode [2020-04-17 18:37:48,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 18:37:48,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 18:37:48,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 18:37:48,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 18:37:48,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:37:48" (1/1) ... [2020-04-17 18:37:48,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:37:48" (1/1) ... [2020-04-17 18:37:48,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 18:37:48,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 18:37:48,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 18:37:48,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 18:37:48,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:37:48" (1/1) ... [2020-04-17 18:37:48,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:37:48" (1/1) ... [2020-04-17 18:37:48,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:37:48" (1/1) ... [2020-04-17 18:37:48,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:37:48" (1/1) ... [2020-04-17 18:37:48,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:37:48" (1/1) ... [2020-04-17 18:37:48,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:37:48" (1/1) ... [2020-04-17 18:37:48,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:37:48" (1/1) ... [2020-04-17 18:37:48,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 18:37:48,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 18:37:48,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 18:37:48,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 18:37:48,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:37:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 18:37:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 18:37:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 18:37:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 18:37:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-17 18:37:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 18:37:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure myThread [2020-04-17 18:37:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure myThread [2020-04-17 18:37:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 18:37:48,248 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 18:37:48,552 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 18:37:48,553 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-04-17 18:37:48,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:37:48 BoogieIcfgContainer [2020-04-17 18:37:48,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 18:37:48,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 18:37:48,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 18:37:48,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 18:37:48,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 06:37:47" (1/3) ... [2020-04-17 18:37:48,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3b75fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:37:48, skipping insertion in model container [2020-04-17 18:37:48,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:37:48" (2/3) ... [2020-04-17 18:37:48,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3b75fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:37:48, skipping insertion in model container [2020-04-17 18:37:48,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:37:48" (3/3) ... [2020-04-17 18:37:48,582 INFO L109 eAbstractionObserver]: Analyzing ICFG globalVariableMultipleThreads.c [2020-04-17 18:37:48,605 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 18:37:48,605 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 18:37:48,611 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 18:37:48,612 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 18:37:48,638 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,638 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,638 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,638 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,639 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,639 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,639 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,639 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,639 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,640 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,640 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,640 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,640 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,641 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,641 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,641 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,641 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,642 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,642 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,642 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,642 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,647 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,647 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,647 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,648 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,648 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,648 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,648 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,649 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,649 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,649 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,649 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,650 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:48,670 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-17 18:37:48,689 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 18:37:48,689 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 18:37:48,689 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 18:37:48,689 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 18:37:48,690 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 18:37:48,690 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 18:37:48,690 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 18:37:48,690 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 18:37:48,705 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 56 transitions, 120 flow [2020-04-17 18:37:48,706 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 120 flow [2020-04-17 18:37:48,749 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2020-04-17 18:37:48,749 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2020-04-17 18:37:48,754 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. [2020-04-17 18:37:48,757 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 120 flow [2020-04-17 18:37:48,782 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2020-04-17 18:37:48,783 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2020-04-17 18:37:48,784 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. [2020-04-17 18:37:48,786 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 600 [2020-04-17 18:37:48,787 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 18:37:49,948 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-04-17 18:37:50,207 INFO L206 etLargeBlockEncoding]: Checked pairs total: 475 [2020-04-17 18:37:50,207 INFO L214 etLargeBlockEncoding]: Total number of compositions: 51 [2020-04-17 18:37:50,212 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 10 transitions, 28 flow [2020-04-17 18:37:50,224 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-04-17 18:37:50,227 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-04-17 18:37:50,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-17 18:37:50,235 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:50,236 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-04-17 18:37:50,236 INFO L427 AbstractCegarLoop]: === Iteration 1 === [myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:37:50,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:50,242 INFO L82 PathProgramCache]: Analyzing trace with hash 6727753, now seen corresponding path program 1 times [2020-04-17 18:37:50,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:50,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022410409] [2020-04-17 18:37:50,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:50,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:37:50,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022410409] [2020-04-17 18:37:50,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:37:50,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 18:37:50,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638173557] [2020-04-17 18:37:50,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 18:37:50,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:37:50,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 18:37:50,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:37:50,443 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2020-04-17 18:37:50,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:37:50,461 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2020-04-17 18:37:50,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 18:37:50,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-04-17 18:37:50,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:37:50,472 INFO L225 Difference]: With dead ends: 16 [2020-04-17 18:37:50,472 INFO L226 Difference]: Without dead ends: 11 [2020-04-17 18:37:50,474 INFO L678 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 [2020-04-17 18:37:50,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-04-17 18:37:50,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-04-17 18:37:50,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-04-17 18:37:50,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-04-17 18:37:50,505 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-04-17 18:37:50,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:37:50,505 INFO L479 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-04-17 18:37:50,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 18:37:50,506 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-04-17 18:37:50,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-17 18:37:50,506 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:50,506 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-04-17 18:37:50,507 INFO L427 AbstractCegarLoop]: === Iteration 2 === [myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:37:50,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:50,507 INFO L82 PathProgramCache]: Analyzing trace with hash -2124565089, now seen corresponding path program 1 times [2020-04-17 18:37:50,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:50,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426610764] [2020-04-17 18:37:50,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 18:37:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 18:37:50,609 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-17 18:37:50,609 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-17 18:37:50,611 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-17 18:37:50,611 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-04-17 18:37:50,622 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,623 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,623 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,623 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,624 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,624 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,624 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,624 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,624 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,626 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,627 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,627 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,627 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,628 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,628 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,628 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,628 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,629 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,629 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,630 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,630 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,631 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,631 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,631 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,631 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,631 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,632 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,632 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,632 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,632 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,633 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,633 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,633 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,633 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,634 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,634 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,634 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,634 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,634 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,635 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,635 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,635 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,636 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,636 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,636 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,637 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,637 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,637 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,637 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,638 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,638 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,638 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,638 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,638 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,641 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,641 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,641 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,642 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,642 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,642 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,642 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,643 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,643 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,643 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,643 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,644 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:50,648 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 18:37:50,648 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 18:37:50,649 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 18:37:50,649 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 18:37:50,649 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 18:37:50,649 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 18:37:50,649 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 18:37:50,650 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 18:37:50,650 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 18:37:50,653 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 174 flow [2020-04-17 18:37:50,654 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 174 flow [2020-04-17 18:37:50,699 INFO L129 PetriNetUnfolder]: 3/117 cut-off events. [2020-04-17 18:37:50,699 INFO L130 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2020-04-17 18:37:50,702 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. [2020-04-17 18:37:50,708 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 174 flow [2020-04-17 18:37:50,753 INFO L129 PetriNetUnfolder]: 3/117 cut-off events. [2020-04-17 18:37:50,753 INFO L130 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2020-04-17 18:37:50,754 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. [2020-04-17 18:37:50,760 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2760 [2020-04-17 18:37:50,760 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 18:37:51,659 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-04-17 18:37:51,909 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6323 [2020-04-17 18:37:51,909 INFO L214 etLargeBlockEncoding]: Total number of compositions: 49 [2020-04-17 18:37:51,909 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 34 transitions, 86 flow [2020-04-17 18:37:51,977 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1003 states. [2020-04-17 18:37:51,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states. [2020-04-17 18:37:51,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 18:37:51,980 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:51,980 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-04-17 18:37:51,980 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:37:51,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:51,981 INFO L82 PathProgramCache]: Analyzing trace with hash -597674599, now seen corresponding path program 1 times [2020-04-17 18:37:51,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:51,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947086564] [2020-04-17 18:37:51,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 18:37:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 18:37:52,036 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-17 18:37:52,039 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-17 18:37:52,040 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-17 18:37:52,042 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-04-17 18:37:52,052 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,052 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,052 WARN L315 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,053 WARN L315 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,053 WARN L315 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,053 WARN L315 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,053 WARN L315 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,053 WARN L315 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,053 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,054 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,054 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,054 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,054 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,054 WARN L315 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,056 WARN L315 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,056 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,056 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,057 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,057 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,057 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,057 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,058 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,062 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,062 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,062 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,063 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,063 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,063 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,063 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,063 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,063 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,063 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,063 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,064 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,064 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,064 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,064 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,064 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,064 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,064 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,065 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,065 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,065 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,065 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,066 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,066 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,066 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,066 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,066 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,066 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,067 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,067 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,067 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,067 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,067 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,067 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,067 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,068 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,068 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,068 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,068 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,068 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,068 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,069 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,069 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,069 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,070 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,070 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,070 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,070 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,070 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,070 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,071 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,071 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,071 WARN L315 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,073 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,073 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,073 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,073 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,073 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,074 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,074 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,074 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,074 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,074 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,074 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,075 WARN L315 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,076 WARN L315 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,076 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,076 WARN L315 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,077 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,077 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,077 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,077 WARN L315 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,077 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,077 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,078 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,078 WARN L315 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,078 WARN L315 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:37:52,082 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-17 18:37:52,082 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 18:37:52,082 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 18:37:52,082 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 18:37:52,082 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 18:37:52,083 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 18:37:52,083 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 18:37:52,083 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 18:37:52,083 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 18:37:52,085 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 100 transitions, 230 flow [2020-04-17 18:37:52,085 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 230 flow [2020-04-17 18:37:52,114 INFO L129 PetriNetUnfolder]: 4/179 cut-off events. [2020-04-17 18:37:52,114 INFO L130 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2020-04-17 18:37:52,115 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 501 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. [2020-04-17 18:37:52,126 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 230 flow [2020-04-17 18:37:52,163 INFO L129 PetriNetUnfolder]: 4/179 cut-off events. [2020-04-17 18:37:52,163 INFO L130 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2020-04-17 18:37:52,166 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 501 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. [2020-04-17 18:37:52,173 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5520 [2020-04-17 18:37:52,173 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 18:37:53,533 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-04-17 18:37:53,621 INFO L206 etLargeBlockEncoding]: Checked pairs total: 12937 [2020-04-17 18:37:53,621 INFO L214 etLargeBlockEncoding]: Total number of compositions: 60 [2020-04-17 18:37:53,622 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 47 transitions, 124 flow [2020-04-17 18:37:54,404 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12523 states. [2020-04-17 18:37:54,404 INFO L276 IsEmpty]: Start isEmpty. Operand 12523 states. [2020-04-17 18:37:54,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 18:37:54,410 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:54,410 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:37:54,410 INFO L427 AbstractCegarLoop]: === Iteration 1 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:37:54,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:54,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1337401756, now seen corresponding path program 1 times [2020-04-17 18:37:54,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:54,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869294304] [2020-04-17 18:37:54,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:54,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:37:54,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869294304] [2020-04-17 18:37:54,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:37:54,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:37:54,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097839004] [2020-04-17 18:37:54,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 18:37:54,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:37:54,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 18:37:54,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:37:54,464 INFO L87 Difference]: Start difference. First operand 12523 states. Second operand 5 states. [2020-04-17 18:37:54,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:37:54,778 INFO L93 Difference]: Finished difference Result 16053 states and 52167 transitions. [2020-04-17 18:37:54,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 18:37:54,779 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-04-17 18:37:54,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:37:54,960 INFO L225 Difference]: With dead ends: 16053 [2020-04-17 18:37:54,960 INFO L226 Difference]: Without dead ends: 15826 [2020-04-17 18:37:54,961 INFO L678 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 [2020-04-17 18:37:55,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15826 states. [2020-04-17 18:37:55,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15826 to 13894. [2020-04-17 18:37:55,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13894 states. [2020-04-17 18:37:55,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13894 states to 13894 states and 46691 transitions. [2020-04-17 18:37:55,855 INFO L78 Accepts]: Start accepts. Automaton has 13894 states and 46691 transitions. Word has length 13 [2020-04-17 18:37:55,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:37:55,856 INFO L479 AbstractCegarLoop]: Abstraction has 13894 states and 46691 transitions. [2020-04-17 18:37:55,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 18:37:55,856 INFO L276 IsEmpty]: Start isEmpty. Operand 13894 states and 46691 transitions. [2020-04-17 18:37:55,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 18:37:55,859 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:55,859 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-04-17 18:37:55,860 INFO L427 AbstractCegarLoop]: === Iteration 2 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:37:55,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:55,860 INFO L82 PathProgramCache]: Analyzing trace with hash 367304155, now seen corresponding path program 1 times [2020-04-17 18:37:55,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:55,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425965576] [2020-04-17 18:37:55,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:55,992 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:37:55,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425965576] [2020-04-17 18:37:55,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043721423] [2020-04-17 18:37:55,994 INFO L94 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 [2020-04-17 18:37:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:37:56,645 INFO L264 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2020-04-17 18:37:56,648 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-17 18:37:56,724 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:56,725 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 67 [2020-04-17 18:37:56,726 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:56,727 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-17 18:37:56,730 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:37:56,769 INFO L619 ElimStorePlain]: treesize reduction 85, result has 22.0 percent of original size [2020-04-17 18:37:56,775 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2020-04-17 18:37:56,776 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-17 18:37:56,784 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:56,785 INFO L539 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. [2020-04-17 18:37:56,785 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:12 [2020-04-17 18:37:56,794 INFO L377 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 [2020-04-17 18:37:56,795 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:37:56,810 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:56,811 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:37:56,811 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2020-04-17 18:37:56,831 INFO L377 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 [2020-04-17 18:37:56,832 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:37:56,838 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:56,839 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:37:56,839 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:19 [2020-04-17 18:37:56,871 INFO L377 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 [2020-04-17 18:37:56,872 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:37:56,879 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:56,879 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:37:56,879 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2020-04-17 18:37:56,886 INFO L377 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 [2020-04-17 18:37:56,886 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:37:56,893 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:56,893 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-17 18:37:56,894 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:19 [2020-04-17 18:37:56,918 INFO L377 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 [2020-04-17 18:37:56,919 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:37:56,926 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:56,927 INFO L539 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. [2020-04-17 18:37:56,928 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2020-04-17 18:37:56,985 INFO L377 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 [2020-04-17 18:37:56,986 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-17 18:37:56,991 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-17 18:37:56,992 INFO L539 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. [2020-04-17 18:37:56,993 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:19 [2020-04-17 18:37:57,022 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:37:57,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-17 18:37:57,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2020-04-17 18:37:57,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719035474] [2020-04-17 18:37:57,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-17 18:37:57,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:37:57,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-17 18:37:57,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-04-17 18:37:57,024 INFO L87 Difference]: Start difference. First operand 13894 states and 46691 transitions. Second operand 11 states. [2020-04-17 18:37:57,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:37:57,400 INFO L93 Difference]: Finished difference Result 9897 states and 32288 transitions. [2020-04-17 18:37:57,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 18:37:57,401 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2020-04-17 18:37:57,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:37:57,450 INFO L225 Difference]: With dead ends: 9897 [2020-04-17 18:37:57,450 INFO L226 Difference]: Without dead ends: 9786 [2020-04-17 18:37:57,452 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-04-17 18:37:57,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9786 states. [2020-04-17 18:37:57,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9786 to 9786. [2020-04-17 18:37:57,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9786 states. [2020-04-17 18:37:57,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9786 states to 9786 states and 31881 transitions. [2020-04-17 18:37:57,901 INFO L78 Accepts]: Start accepts. Automaton has 9786 states and 31881 transitions. Word has length 15 [2020-04-17 18:37:57,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:37:57,902 INFO L479 AbstractCegarLoop]: Abstraction has 9786 states and 31881 transitions. [2020-04-17 18:37:57,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-17 18:37:57,902 INFO L276 IsEmpty]: Start isEmpty. Operand 9786 states and 31881 transitions. [2020-04-17 18:37:57,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-17 18:37:57,907 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:37:57,907 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:37:58,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-17 18:37:58,111 INFO L427 AbstractCegarLoop]: === Iteration 3 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-04-17 18:37:58,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:37:58,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1619689545, now seen corresponding path program 1 times [2020-04-17 18:37:58,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:37:58,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458950656] [2020-04-17 18:37:58,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:37:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 18:37:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 18:37:58,184 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-17 18:37:58,184 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-17 18:37:58,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 06:37:58 BasicIcfg [2020-04-17 18:37:58,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 18:37:58,233 INFO L168 Benchmark]: Toolchain (without parser) took 10482.70 ms. Allocated memory was 135.3 MB in the beginning and 546.8 MB in the end (delta: 411.6 MB). Free memory was 97.2 MB in the beginning and 381.7 MB in the end (delta: -284.5 MB). Peak memory consumption was 127.1 MB. Max. memory is 7.1 GB. [2020-04-17 18:37:58,234 INFO L168 Benchmark]: CDTParser took 1.82 ms. Allocated memory is still 135.3 MB. Free memory was 117.2 MB in the beginning and 116.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-17 18:37:58,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.70 ms. Allocated memory was 135.3 MB in the beginning and 199.2 MB in the end (delta: 64.0 MB). Free memory was 95.2 MB in the beginning and 176.4 MB in the end (delta: -81.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-04-17 18:37:58,238 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.16 ms. Allocated memory is still 199.2 MB. Free memory was 176.4 MB in the beginning and 175.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-17 18:37:58,238 INFO L168 Benchmark]: Boogie Preprocessor took 25.35 ms. Allocated memory is still 199.2 MB. Free memory was 175.0 MB in the beginning and 173.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-17 18:37:58,239 INFO L168 Benchmark]: RCFGBuilder took 379.62 ms. Allocated memory is still 199.2 MB. Free memory was 173.6 MB in the beginning and 156.1 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2020-04-17 18:37:58,242 INFO L168 Benchmark]: TraceAbstraction took 9662.14 ms. Allocated memory was 199.2 MB in the beginning and 546.8 MB in the end (delta: 347.6 MB). Free memory was 156.1 MB in the beginning and 381.7 MB in the end (delta: -225.5 MB). Peak memory consumption was 122.1 MB. Max. memory is 7.1 GB. [2020-04-17 18:37:58,253 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.82 ms. Allocated memory is still 135.3 MB. Free memory was 117.2 MB in the beginning and 116.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 340.70 ms. Allocated memory was 135.3 MB in the beginning and 199.2 MB in the end (delta: 64.0 MB). Free memory was 95.2 MB in the beginning and 176.4 MB in the end (delta: -81.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.16 ms. Allocated memory is still 199.2 MB. Free memory was 176.4 MB in the beginning and 175.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.35 ms. Allocated memory is still 199.2 MB. Free memory was 175.0 MB in the beginning and 173.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 379.62 ms. Allocated memory is still 199.2 MB. Free memory was 173.6 MB in the beginning and 156.1 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9662.14 ms. Allocated memory was 199.2 MB in the beginning and 546.8 MB in the end (delta: 347.6 MB). Free memory was 156.1 MB in the beginning and 381.7 MB in the end (delta: -225.5 MB). Peak memory consumption was 122.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 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, 5 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 475 CheckedPairsTotal, 51 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.2s, 81 ProgramPointsBefore, 38 ProgramPointsAfterwards, 78 TransitionsBefore, 34 TransitionsAfterwards, 2760 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 1256 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 56 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 6323 CheckedPairsTotal, 49 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 104 ProgramPointsBefore, 52 ProgramPointsAfterwards, 100 TransitionsBefore, 47 TransitionsAfterwards, 5520 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 2516 VarBasedMoverChecksPositive, 102 VarBasedMoverChecksNegative, 48 SemBasedMoverChecksPositive, 123 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 0 MoverChecksTotal, 12937 CheckedPairsTotal, 60 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, g=0, myid={3:0}, s=1, vargp={3:0}, vargp={3:0}] [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 [\read(*myid)=0, g=1, myid={3:0}, s=2, vargp={3:0}, vargp={3:0}] [L24] 1 ++s VAL [++s=3, \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: 9.4s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 137 SDtfs, 307 SDslu, 587 SDs, 0 SdLazy, 194 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s 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, 0.5s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 43 ConstructedInterpolants, 4 QuantifiedInterpolants, 7039 SizeOfPredicates, 5 NumberOfNonLiveVariables, 62 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 12/36 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...