/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-12 00:28:47,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-12 00:28:47,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-12 00:28:47,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-12 00:28:47,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-12 00:28:47,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-12 00:28:47,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-12 00:28:47,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-12 00:28:47,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-12 00:28:47,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-12 00:28:47,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-12 00:28:47,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-12 00:28:47,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-12 00:28:47,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-12 00:28:47,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-12 00:28:47,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-12 00:28:47,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-12 00:28:47,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-12 00:28:47,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-12 00:28:47,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-12 00:28:47,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-12 00:28:47,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-12 00:28:47,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-12 00:28:47,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-12 00:28:47,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-12 00:28:47,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-12 00:28:47,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-12 00:28:47,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-12 00:28:47,991 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-12 00:28:48,048 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-12 00:28:48,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-12 00:28:48,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-12 00:28:48,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-12 00:28:48,053 INFO L138 SettingsManager]: * Use SBE=true [2020-09-12 00:28:48,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-12 00:28:48,054 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-12 00:28:48,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-12 00:28:48,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-12 00:28:48,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-12 00:28:48,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-12 00:28:48,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-12 00:28:48,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-12 00:28:48,056 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-12 00:28:48,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-12 00:28:48,056 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-12 00:28:48,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-12 00:28:48,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-12 00:28:48,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-12 00:28:48,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-12 00:28:48,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-12 00:28:48,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-12 00:28:48,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-12 00:28:48,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-12 00:28:48,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-12 00:28:48,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-12 00:28:48,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-12 00:28:48,061 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-12 00:28:48,061 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-12 00:28:48,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-12 00:28:48,061 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-12 00:28:48,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-12 00:28:48,550 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-12 00:28:48,557 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-12 00:28:48,558 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-12 00:28:48,559 INFO L275 PluginConnector]: CDTParser initialized [2020-09-12 00:28:48,561 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c [2020-09-12 00:28:48,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0774333b4/9b537263075e482d97056c7c7b54ab2e/FLAG85f5dc621 [2020-09-12 00:28:49,221 INFO L306 CDTParser]: Found 1 translation units. [2020-09-12 00:28:49,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c [2020-09-12 00:28:49,222 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-09-12 00:28:49,222 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2020-09-12 00:28:49,223 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-09-12 00:28:49,267 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0774333b4/9b537263075e482d97056c7c7b54ab2e/FLAG85f5dc621 [2020-09-12 00:28:49,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0774333b4/9b537263075e482d97056c7c7b54ab2e [2020-09-12 00:28:49,560 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-12 00:28:49,566 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-12 00:28:49,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-12 00:28:49,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-12 00:28:49,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-12 00:28:49,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:28:49" (1/1) ... [2020-09-12 00:28:49,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29dda828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:28:49, skipping insertion in model container [2020-09-12 00:28:49,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:28:49" (1/1) ... [2020-09-12 00:28:49,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-12 00:28:49,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-12 00:28:49,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-12 00:28:49,840 INFO L203 MainTranslator]: Completed pre-run [2020-09-12 00:28:49,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-12 00:28:49,964 INFO L208 MainTranslator]: Completed translation [2020-09-12 00:28:49,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:28:49 WrapperNode [2020-09-12 00:28:49,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-12 00:28:49,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-12 00:28:49,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-12 00:28:49,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-12 00:28:49,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:28:49" (1/1) ... [2020-09-12 00:28:49,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:28:49" (1/1) ... [2020-09-12 00:28:50,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-12 00:28:50,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-12 00:28:50,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-12 00:28:50,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-12 00:28:50,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:28:49" (1/1) ... [2020-09-12 00:28:50,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:28:49" (1/1) ... [2020-09-12 00:28:50,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:28:49" (1/1) ... [2020-09-12 00:28:50,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:28:49" (1/1) ... [2020-09-12 00:28:50,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:28:49" (1/1) ... [2020-09-12 00:28:50,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:28:49" (1/1) ... [2020-09-12 00:28:50,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:28:49" (1/1) ... [2020-09-12 00:28:50,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-12 00:28:50,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-12 00:28:50,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-12 00:28:50,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-12 00:28:50,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:28:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-12 00:28:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-12 00:28:50,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-12 00:28:50,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-12 00:28:50,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-12 00:28:50,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-12 00:28:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure myThread [2020-09-12 00:28:50,124 INFO L138 BoogieDeclarations]: Found implementation of procedure myThread [2020-09-12 00:28:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-12 00:28:50,127 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-12 00:28:50,429 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-12 00:28:50,429 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-12 00:28:50,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:28:50 BoogieIcfgContainer [2020-09-12 00:28:50,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-12 00:28:50,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-12 00:28:50,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-12 00:28:50,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-12 00:28:50,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 12:28:49" (1/3) ... [2020-09-12 00:28:50,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59261684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:28:50, skipping insertion in model container [2020-09-12 00:28:50,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:28:49" (2/3) ... [2020-09-12 00:28:50,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59261684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:28:50, skipping insertion in model container [2020-09-12 00:28:50,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:28:50" (3/3) ... [2020-09-12 00:28:50,448 INFO L109 eAbstractionObserver]: Analyzing ICFG globalVariableMultipleThreads.c [2020-09-12 00:28:50,461 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-12 00:28:50,462 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-12 00:28:50,473 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-12 00:28:50,475 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-12 00:28:50,509 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,510 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,510 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,511 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,511 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,512 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,512 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,512 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,512 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,513 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,513 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,513 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,514 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,514 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,514 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,515 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,515 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,515 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,516 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,516 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,516 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,522 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,522 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,522 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,522 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,523 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,523 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,523 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,523 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,524 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,526 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,526 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,526 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:50,565 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-12 00:28:50,593 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-12 00:28:50,593 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-12 00:28:50,593 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-12 00:28:50,594 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-12 00:28:50,594 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-12 00:28:50,594 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-12 00:28:50,594 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-12 00:28:50,594 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-12 00:28:50,615 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 56 transitions, 120 flow [2020-09-12 00:28:50,618 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 120 flow [2020-09-12 00:28:50,667 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2020-09-12 00:28:50,668 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2020-09-12 00:28:50,673 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 64 events. 2/64 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 34. Up to 4 conditions per place. [2020-09-12 00:28:50,677 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 120 flow [2020-09-12 00:28:50,702 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2020-09-12 00:28:50,703 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2020-09-12 00:28:50,704 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 64 events. 2/64 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 34. Up to 4 conditions per place. [2020-09-12 00:28:50,706 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 600 [2020-09-12 00:28:50,707 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-12 00:28:51,818 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-09-12 00:28:52,050 INFO L206 etLargeBlockEncoding]: Checked pairs total: 475 [2020-09-12 00:28:52,050 INFO L214 etLargeBlockEncoding]: Total number of compositions: 51 [2020-09-12 00:28:52,056 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 10 transitions, 28 flow [2020-09-12 00:28:52,067 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-09-12 00:28:52,069 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-09-12 00:28:52,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-12 00:28:52,077 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:28:52,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-12 00:28:52,079 INFO L427 AbstractCegarLoop]: === Iteration 1 === [myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-12 00:28:52,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:28:52,085 INFO L82 PathProgramCache]: Analyzing trace with hash 6727753, now seen corresponding path program 1 times [2020-09-12 00:28:52,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:28:52,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136420973] [2020-09-12 00:28:52,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:28:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:28:52,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:28:52,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136420973] [2020-09-12 00:28:52,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:28:52,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-12 00:28:52,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [224418725] [2020-09-12 00:28:52,346 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:28:52,350 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:28:52,363 INFO L274 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-09-12 00:28:52,364 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:28:52,366 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:28:52,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-12 00:28:52,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:28:52,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-12 00:28:52,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-12 00:28:52,386 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2020-09-12 00:28:52,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:28:52,403 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2020-09-12 00:28:52,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-12 00:28:52,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-09-12 00:28:52,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:28:52,427 INFO L225 Difference]: With dead ends: 16 [2020-09-12 00:28:52,427 INFO L226 Difference]: Without dead ends: 11 [2020-09-12 00:28:52,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-12 00:28:52,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-09-12 00:28:52,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-09-12 00:28:52,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-09-12 00:28:52,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-09-12 00:28:52,479 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-09-12 00:28:52,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:28:52,480 INFO L479 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-09-12 00:28:52,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-12 00:28:52,481 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-09-12 00:28:52,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-12 00:28:52,482 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:28:52,487 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-09-12 00:28:52,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-12 00:28:52,488 INFO L427 AbstractCegarLoop]: === Iteration 2 === [myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-12 00:28:52,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:28:52,497 INFO L82 PathProgramCache]: Analyzing trace with hash -2124565089, now seen corresponding path program 1 times [2020-09-12 00:28:52,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:28:52,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257658208] [2020-09-12 00:28:52,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:28:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-12 00:28:52,564 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-12 00:28:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-12 00:28:52,611 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-12 00:28:52,636 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-12 00:28:52,637 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-12 00:28:52,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-12 00:28:52,640 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-12 00:28:52,640 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-09-12 00:28:52,650 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,651 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,651 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,651 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,651 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,652 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,652 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,652 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,652 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,653 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,653 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,653 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,653 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,654 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,654 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,654 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,654 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,655 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,655 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,655 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,656 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,656 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,657 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,657 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,657 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,657 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,657 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,658 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,658 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,658 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,658 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,659 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,659 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,659 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,659 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,660 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,660 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,660 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,660 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,661 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,661 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,661 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,662 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,662 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,663 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,663 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,663 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,663 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,664 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,664 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,664 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,664 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,664 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,665 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,667 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,668 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,668 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,668 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,668 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,669 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,669 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,669 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,669 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,670 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,670 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,670 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:52,676 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-12 00:28:52,677 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-12 00:28:52,677 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-12 00:28:52,677 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-12 00:28:52,677 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-12 00:28:52,678 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-12 00:28:52,678 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-12 00:28:52,678 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-12 00:28:52,678 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-12 00:28:52,682 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 174 flow [2020-09-12 00:28:52,682 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 174 flow [2020-09-12 00:28:52,716 INFO L129 PetriNetUnfolder]: 3/117 cut-off events. [2020-09-12 00:28:52,716 INFO L130 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2020-09-12 00:28:52,719 INFO L80 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 117 events. 3/117 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 198 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 66. Up to 6 conditions per place. [2020-09-12 00:28:52,723 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 174 flow [2020-09-12 00:28:52,753 INFO L129 PetriNetUnfolder]: 3/117 cut-off events. [2020-09-12 00:28:52,753 INFO L130 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2020-09-12 00:28:52,755 INFO L80 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 117 events. 3/117 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 198 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 66. Up to 6 conditions per place. [2020-09-12 00:28:52,758 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2760 [2020-09-12 00:28:52,758 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-12 00:28:53,579 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-09-12 00:28:53,787 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6323 [2020-09-12 00:28:53,788 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2020-09-12 00:28:53,788 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 34 transitions, 86 flow [2020-09-12 00:28:53,834 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1003 states. [2020-09-12 00:28:53,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states. [2020-09-12 00:28:53,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-12 00:28:53,837 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:28:53,837 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-09-12 00:28:53,838 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-12 00:28:53,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:28:53,838 INFO L82 PathProgramCache]: Analyzing trace with hash 2108723477, now seen corresponding path program 1 times [2020-09-12 00:28:53,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:28:53,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715107876] [2020-09-12 00:28:53,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:28:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-12 00:28:53,866 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-12 00:28:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-12 00:28:53,893 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-12 00:28:53,901 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-12 00:28:53,902 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-12 00:28:53,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-12 00:28:53,903 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-12 00:28:53,905 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-09-12 00:28:53,915 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,915 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,916 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,916 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,916 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,916 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,916 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,916 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,917 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,917 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,917 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,917 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,918 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,918 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,918 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,918 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,918 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,919 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,919 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,919 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,919 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,920 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,920 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,920 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,920 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,920 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,921 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,921 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,921 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,921 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,921 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,922 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,922 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,922 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,922 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,923 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,923 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,923 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,923 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,923 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,923 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,924 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,924 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,924 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,925 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,925 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,925 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,925 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,925 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,925 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,926 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,926 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,926 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,926 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,927 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,927 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,927 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,927 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,927 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,928 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,928 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,928 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,928 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,929 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,929 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,929 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,930 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,930 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,930 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,930 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,930 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,931 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,931 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,931 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,931 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,933 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,934 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,934 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,934 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,934 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,934 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,934 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,935 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,935 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,935 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,935 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,935 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,950 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,951 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,951 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,951 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,951 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,951 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,952 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,952 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,953 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,953 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,953 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,953 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:28:53,969 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-12 00:28:53,970 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-12 00:28:53,970 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-12 00:28:53,970 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-12 00:28:53,970 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-12 00:28:53,970 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-12 00:28:53,970 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-12 00:28:53,971 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-12 00:28:53,971 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-12 00:28:53,975 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 100 transitions, 230 flow [2020-09-12 00:28:53,975 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 230 flow [2020-09-12 00:28:54,027 INFO L129 PetriNetUnfolder]: 4/179 cut-off events. [2020-09-12 00:28:54,027 INFO L130 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2020-09-12 00:28:54,029 INFO L80 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 179 events. 4/179 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 503 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2020-09-12 00:28:54,039 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 230 flow [2020-09-12 00:28:54,083 INFO L129 PetriNetUnfolder]: 4/179 cut-off events. [2020-09-12 00:28:54,083 INFO L130 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2020-09-12 00:28:54,088 INFO L80 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 179 events. 4/179 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 503 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2020-09-12 00:28:54,095 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5520 [2020-09-12 00:28:54,096 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-12 00:28:55,023 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-09-12 00:28:55,127 INFO L206 etLargeBlockEncoding]: Checked pairs total: 12959 [2020-09-12 00:28:55,127 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-09-12 00:28:55,128 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 47 transitions, 124 flow [2020-09-12 00:28:56,239 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12523 states. [2020-09-12 00:28:56,239 INFO L276 IsEmpty]: Start isEmpty. Operand 12523 states. [2020-09-12 00:28:56,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-12 00:28:56,247 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:28:56,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:28:56,252 INFO L427 AbstractCegarLoop]: === Iteration 1 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-12 00:28:56,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:28:56,253 INFO L82 PathProgramCache]: Analyzing trace with hash 2074725494, now seen corresponding path program 1 times [2020-09-12 00:28:56,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:28:56,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232899902] [2020-09-12 00:28:56,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:28:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:28:56,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:28:56,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232899902] [2020-09-12 00:28:56,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:28:56,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:28:56,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1902380317] [2020-09-12 00:28:56,370 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:28:56,372 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:28:56,378 INFO L274 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-09-12 00:28:56,378 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:28:56,379 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:28:56,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-12 00:28:56,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:28:56,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-12 00:28:56,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:28:56,380 INFO L87 Difference]: Start difference. First operand 12523 states. Second operand 5 states. [2020-09-12 00:28:56,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:28:56,750 INFO L93 Difference]: Finished difference Result 16053 states and 52167 transitions. [2020-09-12 00:28:56,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-12 00:28:56,751 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-12 00:28:56,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:28:56,941 INFO L225 Difference]: With dead ends: 16053 [2020-09-12 00:28:56,942 INFO L226 Difference]: Without dead ends: 15826 [2020-09-12 00:28:56,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:28:57,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15826 states. [2020-09-12 00:28:57,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15826 to 13894. [2020-09-12 00:28:57,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13894 states. [2020-09-12 00:28:57,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13894 states to 13894 states and 46691 transitions. [2020-09-12 00:28:57,877 INFO L78 Accepts]: Start accepts. Automaton has 13894 states and 46691 transitions. Word has length 13 [2020-09-12 00:28:57,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:28:57,878 INFO L479 AbstractCegarLoop]: Abstraction has 13894 states and 46691 transitions. [2020-09-12 00:28:57,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-12 00:28:57,878 INFO L276 IsEmpty]: Start isEmpty. Operand 13894 states and 46691 transitions. [2020-09-12 00:28:57,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-12 00:28:57,881 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:28:57,881 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-09-12 00:28:57,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-12 00:28:57,882 INFO L427 AbstractCegarLoop]: === Iteration 2 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-12 00:28:57,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:28:57,882 INFO L82 PathProgramCache]: Analyzing trace with hash -694215649, now seen corresponding path program 1 times [2020-09-12 00:28:57,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:28:57,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954223702] [2020-09-12 00:28:57,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:28:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:28:58,036 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:28:58,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954223702] [2020-09-12 00:28:58,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206656963] [2020-09-12 00:28:58,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-12 00:28:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:28:58,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 9 conjunts are in the unsatisfiable core [2020-09-12 00:28:58,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-12 00:28:58,194 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2020-09-12 00:28:58,791 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-12 00:28:58,834 INFO L625 ElimStorePlain]: treesize reduction 31, result has 39.2 percent of original size [2020-09-12 00:28:58,845 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-09-12 00:28:58,846 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-09-12 00:28:58,853 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-12 00:28:58,855 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-12 00:28:58,855 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:26, output treesize:12 [2020-09-12 00:28:58,875 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-09-12 00:28:58,876 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-12 00:28:58,882 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-12 00:28:58,883 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-12 00:28:58,883 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2020-09-12 00:28:58,925 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-09-12 00:28:58,926 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-12 00:28:58,937 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-12 00:28:58,937 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-12 00:28:58,938 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2020-09-12 00:28:58,963 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2020-09-12 00:28:58,965 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-12 00:28:58,971 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-12 00:28:58,971 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-12 00:28:58,972 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2020-09-12 00:28:58,980 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-09-12 00:28:58,981 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-12 00:28:58,988 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-12 00:28:58,989 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-12 00:28:58,989 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:19 [2020-09-12 00:28:59,025 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2020-09-12 00:28:59,026 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-12 00:28:59,033 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-12 00:28:59,035 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-09-12 00:28:59,036 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2020-09-12 00:28:59,088 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-09-12 00:28:59,090 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-12 00:28:59,096 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-12 00:28:59,099 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-09-12 00:28:59,099 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:21 [2020-09-12 00:28:59,130 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:28:59,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-12 00:28:59,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2020-09-12 00:28:59,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1990279720] [2020-09-12 00:28:59,131 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:28:59,133 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:28:59,138 INFO L274 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-09-12 00:28:59,138 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:28:59,139 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:28:59,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-12 00:28:59,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:28:59,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-12 00:28:59,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-12 00:28:59,140 INFO L87 Difference]: Start difference. First operand 13894 states and 46691 transitions. Second operand 12 states. [2020-09-12 00:28:59,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:28:59,425 INFO L93 Difference]: Finished difference Result 9897 states and 32288 transitions. [2020-09-12 00:28:59,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-12 00:28:59,426 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-09-12 00:28:59,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:28:59,465 INFO L225 Difference]: With dead ends: 9897 [2020-09-12 00:28:59,466 INFO L226 Difference]: Without dead ends: 9786 [2020-09-12 00:28:59,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-09-12 00:28:59,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9786 states. [2020-09-12 00:28:59,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9786 to 9786. [2020-09-12 00:28:59,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9786 states. [2020-09-12 00:28:59,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9786 states to 9786 states and 31881 transitions. [2020-09-12 00:28:59,887 INFO L78 Accepts]: Start accepts. Automaton has 9786 states and 31881 transitions. Word has length 15 [2020-09-12 00:28:59,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:28:59,889 INFO L479 AbstractCegarLoop]: Abstraction has 9786 states and 31881 transitions. [2020-09-12 00:28:59,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-12 00:28:59,889 INFO L276 IsEmpty]: Start isEmpty. Operand 9786 states and 31881 transitions. [2020-09-12 00:28:59,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-12 00:28:59,895 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:28:59,895 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:29:00,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-12 00:29:00,108 INFO L427 AbstractCegarLoop]: === Iteration 3 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-12 00:29:00,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:29:00,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1598600700, now seen corresponding path program 1 times [2020-09-12 00:29:00,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:29:00,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789884094] [2020-09-12 00:29:00,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:29:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-12 00:29:00,133 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-12 00:29:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-12 00:29:00,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-12 00:29:00,165 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-12 00:29:00,165 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-12 00:29:00,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-12 00:29:00,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 12:29:00 BasicIcfg [2020-09-12 00:29:00,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-12 00:29:00,248 INFO L168 Benchmark]: Toolchain (without parser) took 10686.25 ms. Allocated memory was 138.4 MB in the beginning and 518.0 MB in the end (delta: 379.6 MB). Free memory was 99.7 MB in the beginning and 352.4 MB in the end (delta: -252.7 MB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. [2020-09-12 00:29:00,248 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-12 00:29:00,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.66 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 99.1 MB in the beginning and 181.4 MB in the end (delta: -82.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-09-12 00:29:00,250 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.89 ms. Allocated memory is still 202.9 MB. Free memory was 181.4 MB in the beginning and 179.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-12 00:29:00,251 INFO L168 Benchmark]: Boogie Preprocessor took 26.04 ms. Allocated memory is still 202.9 MB. Free memory was 179.3 MB in the beginning and 177.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-09-12 00:29:00,251 INFO L168 Benchmark]: RCFGBuilder took 397.49 ms. Allocated memory is still 202.9 MB. Free memory was 177.6 MB in the beginning and 160.2 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. [2020-09-12 00:29:00,252 INFO L168 Benchmark]: TraceAbstraction took 9808.00 ms. Allocated memory was 202.9 MB in the beginning and 518.0 MB in the end (delta: 315.1 MB). Free memory was 159.5 MB in the beginning and 352.4 MB in the end (delta: -192.8 MB). Peak memory consumption was 122.3 MB. Max. memory is 7.1 GB. [2020-09-12 00:29:00,260 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 397.66 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 99.1 MB in the beginning and 181.4 MB in the end (delta: -82.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.89 ms. Allocated memory is still 202.9 MB. Free memory was 181.4 MB in the beginning and 179.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.04 ms. Allocated memory is still 202.9 MB. Free memory was 179.3 MB in the beginning and 177.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 397.49 ms. Allocated memory is still 202.9 MB. Free memory was 177.6 MB in the beginning and 160.2 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9808.00 ms. Allocated memory was 202.9 MB in the beginning and 518.0 MB in the end (delta: 315.1 MB). Free memory was 159.5 MB in the beginning and 352.4 MB in the end (delta: -192.8 MB). Peak memory consumption was 122.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 58 ProgramPointsBefore, 13 ProgramPointsAfterwards, 56 TransitionsBefore, 10 TransitionsAfterwards, 600 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 309 VarBasedMoverChecksPositive, 3 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 475 CheckedPairsTotal, 51 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 81 ProgramPointsBefore, 38 ProgramPointsAfterwards, 78 TransitionsBefore, 34 TransitionsAfterwards, 2760 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 1229 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 6323 CheckedPairsTotal, 47 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 104 ProgramPointsBefore, 52 ProgramPointsAfterwards, 100 TransitionsBefore, 47 TransitionsAfterwards, 5520 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 2487 VarBasedMoverChecksPositive, 67 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 12959 CheckedPairsTotal, 58 TotalNumberOfCompositions - CounterExampleResult [Line: 25]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int g = 0; [L21] 0 static int s = 0; [L30] 0 int i; [L31] 0 pthread_t tid; [L34] 0 i = 0 VAL [g=0, s=0] [L34] EXPR 0 \read(i) [L34] COND TRUE 0 i < 3 [L35] FCALL, FORK 0 pthread_create(&tid, NULL, myThread, (void *)&i) VAL [g=0, s=0, vargp={3:0}] [L20] 1 int *myid = (int *)vargp; [L22] 1 ++s [L22] 1 ++g VAL [g=1, myid={3:0}, s=1, vargp={3:0}, vargp={3:0}] [L24] 1 \read(*myid) VAL [\read(*myid)=0, g=1, myid={3:0}, s=1, vargp={3:0}, vargp={3:0}] [L34] EXPR 0 \read(i) [L34] 0 i++ [L34] EXPR 0 \read(i) [L34] COND TRUE 0 i < 3 [L35] FCALL, FORK 0 pthread_create(&tid, NULL, myThread, (void *)&i) VAL [\read(*myid)=0, g=1, myid={3:0}, s=1, vargp={3:0}, vargp={3:0}] [L20] 2 int *myid = (int *)vargp; [L22] 2 ++s VAL [++s=2, \read(*myid)=0, g=1, myid={3:0}, s=1, vargp={3:0}, vargp={3:0}] [L24] 1 ++s VAL [++s=2, ++s=2, \read(*myid)=0, g=1, myid={3:0}, s=1, vargp={3:0}, vargp={3:0}] [L22] 2 ++s VAL [++s=2, \read(*myid)=0, g=1, myid={3:0}, s=2, vargp={3:0}, vargp={3:0}] [L24] 1 ++s VAL [++s=2, \read(*myid)=0, g=1, myid={3:0}, s=3, vargp={3:0}, vargp={3:0}] [L24] 1 ++g [L25] 1 CodeAnnotStmt[Assertion] VAL [g=2, myid={3:0}, s=3, vargp={3:0}, vargp={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 3 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.4s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 137 SDtfs, 270 SDslu, 628 SDs, 0 SdLazy, 205 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13894occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 1932 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 43 ConstructedInterpolants, 4 QuantifiedInterpolants, 5863 SizeOfPredicates, 5 NumberOfNonLiveVariables, 62 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 7/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...