/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 00:51:04,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 00:51:04,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 00:51:04,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 00:51:04,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 00:51:04,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 00:51:04,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 00:51:04,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 00:51:04,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 00:51:04,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 00:51:04,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 00:51:04,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 00:51:04,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 00:51:04,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 00:51:04,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 00:51:04,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 00:51:04,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 00:51:04,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 00:51:04,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 00:51:04,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 00:51:04,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 00:51:04,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 00:51:04,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 00:51:04,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 00:51:04,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-15 00:51:04,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 00:51:04,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 00:51:04,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 00:51:04,998 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-15 00:51:05,023 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 00:51:05,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 00:51:05,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 00:51:05,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 00:51:05,026 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 00:51:05,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 00:51:05,026 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 00:51:05,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 00:51:05,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 00:51:05,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 00:51:05,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 00:51:05,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 00:51:05,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 00:51:05,028 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 00:51:05,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 00:51:05,028 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 00:51:05,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 00:51:05,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 00:51:05,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 00:51:05,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 00:51:05,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 00:51:05,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 00:51:05,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 00:51:05,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-15 00:51:05,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 00:51:05,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 00:51:05,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 00:51:05,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 00:51:05,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-15 00:51:05,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-15 00:51:05,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 00:51:05,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 00:51:05,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 00:51:05,531 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 00:51:05,531 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 00:51:05,532 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c [2020-09-15 00:51:05,609 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96bf38225/865f8ccdac4647a29b77c5bf4f64bb1d/FLAGe7a6ac0fe [2020-09-15 00:51:06,163 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 00:51:06,165 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/concurrent/pthreads/globalVariableMultipleThreads.c [2020-09-15 00:51:06,165 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-09-15 00:51:06,165 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2020-09-15 00:51:06,166 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-09-15 00:51:06,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96bf38225/865f8ccdac4647a29b77c5bf4f64bb1d/FLAGe7a6ac0fe [2020-09-15 00:51:06,467 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96bf38225/865f8ccdac4647a29b77c5bf4f64bb1d [2020-09-15 00:51:06,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 00:51:06,485 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 00:51:06,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 00:51:06,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 00:51:06,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 00:51:06,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:51:06" (1/1) ... [2020-09-15 00:51:06,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b171f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:51:06, skipping insertion in model container [2020-09-15 00:51:06,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:51:06" (1/1) ... [2020-09-15 00:51:06,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 00:51:06,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 00:51:06,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 00:51:06,835 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 00:51:06,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 00:51:06,956 INFO L208 MainTranslator]: Completed translation [2020-09-15 00:51:06,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:51:06 WrapperNode [2020-09-15 00:51:06,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 00:51:06,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 00:51:06,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 00:51:06,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 00:51:06,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:51:06" (1/1) ... [2020-09-15 00:51:06,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:51:06" (1/1) ... [2020-09-15 00:51:07,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 00:51:07,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 00:51:07,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 00:51:07,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 00:51:07,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:51:06" (1/1) ... [2020-09-15 00:51:07,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:51:06" (1/1) ... [2020-09-15 00:51:07,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:51:06" (1/1) ... [2020-09-15 00:51:07,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:51:06" (1/1) ... [2020-09-15 00:51:07,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:51:06" (1/1) ... [2020-09-15 00:51:07,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:51:06" (1/1) ... [2020-09-15 00:51:07,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:51:06" (1/1) ... [2020-09-15 00:51:07,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 00:51:07,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 00:51:07,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 00:51:07,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 00:51:07,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:51:06" (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 [2020-09-15 00:51:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 00:51:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 00:51:07,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 00:51:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-15 00:51:07,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 00:51:07,111 INFO L130 BoogieDeclarations]: Found specification of procedure myThread [2020-09-15 00:51:07,112 INFO L138 BoogieDeclarations]: Found implementation of procedure myThread [2020-09-15 00:51:07,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 00:51:07,114 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 00:51:07,405 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 00:51:07,406 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-15 00:51:07,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:51:07 BoogieIcfgContainer [2020-09-15 00:51:07,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 00:51:07,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 00:51:07,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 00:51:07,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 00:51:07,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:51:06" (1/3) ... [2020-09-15 00:51:07,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a70be5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:51:07, skipping insertion in model container [2020-09-15 00:51:07,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:51:06" (2/3) ... [2020-09-15 00:51:07,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a70be5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:51:07, skipping insertion in model container [2020-09-15 00:51:07,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:51:07" (3/3) ... [2020-09-15 00:51:07,425 INFO L109 eAbstractionObserver]: Analyzing ICFG globalVariableMultipleThreads.c [2020-09-15 00:51:07,440 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 00:51:07,440 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-15 00:51:07,452 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-15 00:51:07,453 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 00:51:07,490 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,491 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,491 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,491 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,492 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,492 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,492 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,492 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,493 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,493 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,493 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,494 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,494 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,494 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,494 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,495 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,495 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,495 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,496 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,496 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,496 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,501 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,501 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,501 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,502 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,502 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,502 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,502 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,503 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,503 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,503 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of1ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,503 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,504 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of1ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:07,535 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-15 00:51:07,565 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 00:51:07,565 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 00:51:07,565 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-15 00:51:07,565 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-15 00:51:07,565 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 00:51:07,566 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 00:51:07,566 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 00:51:07,566 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 00:51:07,597 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 56 transitions, 120 flow [2020-09-15 00:51:07,603 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 120 flow [2020-09-15 00:51:07,661 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2020-09-15 00:51:07,661 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2020-09-15 00:51:07,667 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. [2020-09-15 00:51:07,671 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 120 flow [2020-09-15 00:51:07,700 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2020-09-15 00:51:07,701 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2020-09-15 00:51:07,702 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. [2020-09-15 00:51:07,704 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 600 [2020-09-15 00:51:07,705 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-15 00:51:08,818 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-09-15 00:51:09,046 INFO L206 etLargeBlockEncoding]: Checked pairs total: 475 [2020-09-15 00:51:09,047 INFO L214 etLargeBlockEncoding]: Total number of compositions: 51 [2020-09-15 00:51:09,052 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 10 transitions, 28 flow [2020-09-15 00:51:09,063 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-09-15 00:51:09,066 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-09-15 00:51:09,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-15 00:51:09,074 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:51:09,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-15 00:51:09,076 INFO L427 AbstractCegarLoop]: === Iteration 1 === [myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-15 00:51:09,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:51:09,083 INFO L82 PathProgramCache]: Analyzing trace with hash 6727753, now seen corresponding path program 1 times [2020-09-15 00:51:09,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:51:09,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811709383] [2020-09-15 00:51:09,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:51:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:51:09,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:51:09,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811709383] [2020-09-15 00:51:09,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:51:09,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 00:51:09,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914370399] [2020-09-15 00:51:09,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 00:51:09,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:51:09,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 00:51:09,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 00:51:09,371 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2020-09-15 00:51:09,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:51:09,400 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2020-09-15 00:51:09,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 00:51:09,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-09-15 00:51:09,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:51:09,419 INFO L225 Difference]: With dead ends: 16 [2020-09-15 00:51:09,419 INFO L226 Difference]: Without dead ends: 11 [2020-09-15 00:51:09,422 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 [2020-09-15 00:51:09,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-09-15 00:51:09,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-09-15 00:51:09,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-09-15 00:51:09,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-09-15 00:51:09,470 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-09-15 00:51:09,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:51:09,471 INFO L479 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-09-15 00:51:09,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 00:51:09,471 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-09-15 00:51:09,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-15 00:51:09,472 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:51:09,472 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-09-15 00:51:09,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 00:51:09,473 INFO L427 AbstractCegarLoop]: === Iteration 2 === [myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-15 00:51:09,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:51:09,474 INFO L82 PathProgramCache]: Analyzing trace with hash -2124565089, now seen corresponding path program 1 times [2020-09-15 00:51:09,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:51:09,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688746705] [2020-09-15 00:51:09,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:51:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-15 00:51:09,527 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-15 00:51:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-15 00:51:09,551 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-15 00:51:09,578 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-15 00:51:09,578 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-15 00:51:09,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 00:51:09,581 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-15 00:51:09,582 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-09-15 00:51:09,595 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,595 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,595 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,596 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,596 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,596 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,597 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,597 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,597 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,597 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,598 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,598 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,598 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,598 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,599 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,599 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,599 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,599 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,600 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,600 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,600 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,601 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,601 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,601 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,601 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,602 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,602 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,602 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,602 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,603 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,603 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,603 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,603 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,604 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,604 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,604 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,604 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,605 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,605 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,605 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,605 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,606 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,607 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,607 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,607 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,607 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,608 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,608 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,608 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,608 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,608 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,609 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,609 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,609 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,613 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,614 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,614 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,614 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,614 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,615 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,615 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,615 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of2ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,615 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,615 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,616 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,616 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of2ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:09,623 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-15 00:51:09,623 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 00:51:09,623 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 00:51:09,623 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-15 00:51:09,624 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-15 00:51:09,624 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 00:51:09,624 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 00:51:09,624 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 00:51:09,624 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 00:51:09,628 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 174 flow [2020-09-15 00:51:09,628 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 174 flow [2020-09-15 00:51:09,662 INFO L129 PetriNetUnfolder]: 3/117 cut-off events. [2020-09-15 00:51:09,662 INFO L130 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2020-09-15 00:51:09,664 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. [2020-09-15 00:51:09,669 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 174 flow [2020-09-15 00:51:09,699 INFO L129 PetriNetUnfolder]: 3/117 cut-off events. [2020-09-15 00:51:09,699 INFO L130 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2020-09-15 00:51:09,700 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. [2020-09-15 00:51:09,718 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2760 [2020-09-15 00:51:09,718 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-15 00:51:10,691 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-09-15 00:51:10,946 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6323 [2020-09-15 00:51:10,946 INFO L214 etLargeBlockEncoding]: Total number of compositions: 49 [2020-09-15 00:51:10,947 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 34 transitions, 86 flow [2020-09-15 00:51:10,999 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1003 states. [2020-09-15 00:51:11,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states. [2020-09-15 00:51:11,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-15 00:51:11,004 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:51:11,005 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-09-15 00:51:11,005 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-15 00:51:11,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:51:11,006 INFO L82 PathProgramCache]: Analyzing trace with hash -597674599, now seen corresponding path program 1 times [2020-09-15 00:51:11,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:51:11,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68634268] [2020-09-15 00:51:11,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:51:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-15 00:51:11,074 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-15 00:51:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-15 00:51:11,111 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-15 00:51:11,119 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-15 00:51:11,119 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-15 00:51:11,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 00:51:11,120 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-15 00:51:11,122 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-09-15 00:51:11,131 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,131 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,131 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,131 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,131 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,132 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,132 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,132 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,132 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,132 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,133 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,133 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,133 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,133 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,133 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,134 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,134 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,134 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,134 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,134 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,135 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,135 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,136 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,136 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,136 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,136 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,136 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,136 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,137 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,137 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,137 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,137 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,137 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,137 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,138 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,138 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,138 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,138 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,138 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,139 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,139 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,139 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,140 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#in~vargp.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,140 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#in~vargp.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,140 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,140 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,140 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,141 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,141 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,141 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,141 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,141 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,142 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,142 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,142 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,142 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,142 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,142 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,143 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,143 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,143 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,143 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,144 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,144 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,144 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,145 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,145 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,145 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,145 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,145 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,145 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,146 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,146 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,146 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,146 WARN L313 ript$VariableManager]: TermVariabe myThreadThread1of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,148 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,148 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,148 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,149 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,149 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,149 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,149 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,149 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,150 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,150 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,150 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,150 WARN L313 ript$VariableManager]: TermVariabe myThreadThread2of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,152 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,152 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,153 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,153 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,153 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,153 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,153 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~myid~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,153 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,154 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,154 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~pre6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,154 WARN L313 ript$VariableManager]: TermVariabe |myThreadThread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,154 WARN L313 ript$VariableManager]: TermVariabe myThreadThread3of3ForFork0_~vargp.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:51:11,159 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-15 00:51:11,160 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 00:51:11,160 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 00:51:11,160 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-15 00:51:11,160 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-15 00:51:11,160 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 00:51:11,160 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 00:51:11,161 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 00:51:11,161 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 00:51:11,163 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 100 transitions, 230 flow [2020-09-15 00:51:11,163 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 230 flow [2020-09-15 00:51:11,196 INFO L129 PetriNetUnfolder]: 4/179 cut-off events. [2020-09-15 00:51:11,199 INFO L130 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2020-09-15 00:51:11,200 INFO L80 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 179 events. 4/179 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 501 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2020-09-15 00:51:11,207 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 230 flow [2020-09-15 00:51:11,232 INFO L129 PetriNetUnfolder]: 4/179 cut-off events. [2020-09-15 00:51:11,232 INFO L130 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2020-09-15 00:51:11,233 INFO L80 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 179 events. 4/179 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 501 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2020-09-15 00:51:11,240 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5520 [2020-09-15 00:51:11,240 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-15 00:51:12,831 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-09-15 00:51:12,950 INFO L206 etLargeBlockEncoding]: Checked pairs total: 12937 [2020-09-15 00:51:12,951 INFO L214 etLargeBlockEncoding]: Total number of compositions: 60 [2020-09-15 00:51:12,951 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 47 transitions, 124 flow [2020-09-15 00:51:13,885 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12523 states. [2020-09-15 00:51:13,885 INFO L276 IsEmpty]: Start isEmpty. Operand 12523 states. [2020-09-15 00:51:13,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-15 00:51:13,889 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:51:13,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:51:13,890 INFO L427 AbstractCegarLoop]: === Iteration 1 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-15 00:51:13,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:51:13,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1337401756, now seen corresponding path program 1 times [2020-09-15 00:51:13,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:51:13,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605576804] [2020-09-15 00:51:13,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:51:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:51:13,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:51:13,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605576804] [2020-09-15 00:51:13,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:51:13,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 00:51:13,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732592979] [2020-09-15 00:51:13,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 00:51:13,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:51:13,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 00:51:13,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-15 00:51:13,973 INFO L87 Difference]: Start difference. First operand 12523 states. Second operand 5 states. [2020-09-15 00:51:14,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:51:14,398 INFO L93 Difference]: Finished difference Result 16053 states and 52167 transitions. [2020-09-15 00:51:14,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 00:51:14,399 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-15 00:51:14,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:51:14,618 INFO L225 Difference]: With dead ends: 16053 [2020-09-15 00:51:14,618 INFO L226 Difference]: Without dead ends: 15826 [2020-09-15 00:51:14,619 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 [2020-09-15 00:51:14,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15826 states. [2020-09-15 00:51:15,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15826 to 13894. [2020-09-15 00:51:15,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13894 states. [2020-09-15 00:51:15,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13894 states to 13894 states and 46691 transitions. [2020-09-15 00:51:15,490 INFO L78 Accepts]: Start accepts. Automaton has 13894 states and 46691 transitions. Word has length 13 [2020-09-15 00:51:15,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:51:15,490 INFO L479 AbstractCegarLoop]: Abstraction has 13894 states and 46691 transitions. [2020-09-15 00:51:15,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 00:51:15,491 INFO L276 IsEmpty]: Start isEmpty. Operand 13894 states and 46691 transitions. [2020-09-15 00:51:15,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-15 00:51:15,499 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:51:15,499 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-09-15 00:51:15,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 00:51:15,500 INFO L427 AbstractCegarLoop]: === Iteration 2 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-15 00:51:15,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:51:15,500 INFO L82 PathProgramCache]: Analyzing trace with hash 367304155, now seen corresponding path program 1 times [2020-09-15 00:51:15,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:51:15,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683235452] [2020-09-15 00:51:15,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:51:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:51:15,706 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:51:15,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683235452] [2020-09-15 00:51:15,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682069818] [2020-09-15 00:51:15,707 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 [2020-09-15 00:51:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:51:15,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2020-09-15 00:51:15,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-15 00:51:15,850 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 [2020-09-15 00:51:15,853 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-15 00:51:15,890 INFO L625 ElimStorePlain]: treesize reduction 31, result has 39.2 percent of original size [2020-09-15 00:51:15,903 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 [2020-09-15 00:51:15,903 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-09-15 00:51:15,913 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-15 00:51:15,919 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. [2020-09-15 00:51:15,919 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:26, output treesize:12 [2020-09-15 00:51:15,937 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 [2020-09-15 00:51:15,938 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-15 00:51:15,946 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-15 00:51:15,947 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-15 00:51:15,947 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2020-09-15 00:51:15,982 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 [2020-09-15 00:51:15,983 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-15 00:51:15,993 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-15 00:51:15,993 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-15 00:51:15,993 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2020-09-15 00:51:16,027 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 [2020-09-15 00:51:16,029 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-15 00:51:16,035 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-15 00:51:16,035 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-15 00:51:16,036 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2020-09-15 00:51:16,054 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 [2020-09-15 00:51:16,055 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-15 00:51:16,064 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-15 00:51:16,065 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-15 00:51:16,065 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:19 [2020-09-15 00:51:16,105 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 [2020-09-15 00:51:16,106 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-15 00:51:16,113 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-15 00:51:16,115 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. [2020-09-15 00:51:16,116 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2020-09-15 00:51:16,167 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 [2020-09-15 00:51:16,168 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-15 00:51:16,175 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-15 00:51:16,177 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. [2020-09-15 00:51:16,177 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:21 [2020-09-15 00:51:16,208 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:51:16,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-15 00:51:16,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2020-09-15 00:51:16,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139953339] [2020-09-15 00:51:16,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-15 00:51:16,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:51:16,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-15 00:51:16,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-15 00:51:16,210 INFO L87 Difference]: Start difference. First operand 13894 states and 46691 transitions. Second operand 12 states. [2020-09-15 00:51:17,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:51:17,102 INFO L93 Difference]: Finished difference Result 9897 states and 32288 transitions. [2020-09-15 00:51:17,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 00:51:17,103 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-09-15 00:51:17,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:51:17,141 INFO L225 Difference]: With dead ends: 9897 [2020-09-15 00:51:17,141 INFO L226 Difference]: Without dead ends: 9786 [2020-09-15 00:51:17,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-09-15 00:51:17,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9786 states. [2020-09-15 00:51:17,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9786 to 9786. [2020-09-15 00:51:17,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9786 states. [2020-09-15 00:51:17,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9786 states to 9786 states and 31881 transitions. [2020-09-15 00:51:17,500 INFO L78 Accepts]: Start accepts. Automaton has 9786 states and 31881 transitions. Word has length 15 [2020-09-15 00:51:17,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:51:17,502 INFO L479 AbstractCegarLoop]: Abstraction has 9786 states and 31881 transitions. [2020-09-15 00:51:17,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-15 00:51:17,502 INFO L276 IsEmpty]: Start isEmpty. Operand 9786 states and 31881 transitions. [2020-09-15 00:51:17,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-15 00:51:17,505 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:51:17,505 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:51:17,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-15 00:51:17,720 INFO L427 AbstractCegarLoop]: === Iteration 3 === [myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, myThreadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, myThreadErr0ASSERT_VIOLATIONASSERT]=== [2020-09-15 00:51:17,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:51:17,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1619689545, now seen corresponding path program 1 times [2020-09-15 00:51:17,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:51:17,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996511990] [2020-09-15 00:51:17,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:51:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-15 00:51:17,748 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-15 00:51:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-15 00:51:17,777 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-15 00:51:17,785 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-15 00:51:17,786 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-15 00:51:17,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-15 00:51:17,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:51:17 BasicIcfg [2020-09-15 00:51:17,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 00:51:17,835 INFO L168 Benchmark]: Toolchain (without parser) took 11353.02 ms. Allocated memory was 139.5 MB in the beginning and 485.5 MB in the end (delta: 346.0 MB). Free memory was 100.7 MB in the beginning and 209.6 MB in the end (delta: -108.8 MB). Peak memory consumption was 237.2 MB. Max. memory is 7.1 GB. [2020-09-15 00:51:17,835 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 00:51:17,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.79 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.1 MB in the beginning and 180.9 MB in the end (delta: -80.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-09-15 00:51:17,837 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.38 ms. Allocated memory is still 202.4 MB. Free memory was 180.9 MB in the beginning and 178.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-15 00:51:17,838 INFO L168 Benchmark]: Boogie Preprocessor took 26.81 ms. Allocated memory is still 202.4 MB. Free memory was 178.9 MB in the beginning and 177.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-15 00:51:17,839 INFO L168 Benchmark]: RCFGBuilder took 375.14 ms. Allocated memory is still 202.4 MB. Free memory was 177.5 MB in the beginning and 159.3 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2020-09-15 00:51:17,840 INFO L168 Benchmark]: TraceAbstraction took 10419.35 ms. Allocated memory was 202.4 MB in the beginning and 485.5 MB in the end (delta: 283.1 MB). Free memory was 158.6 MB in the beginning and 209.6 MB in the end (delta: -50.9 MB). Peak memory consumption was 232.2 MB. Max. memory is 7.1 GB. [2020-09-15 00:51:17,844 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 471.79 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.1 MB in the beginning and 180.9 MB in the end (delta: -80.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.38 ms. Allocated memory is still 202.4 MB. Free memory was 180.9 MB in the beginning and 178.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.81 ms. Allocated memory is still 202.4 MB. Free memory was 178.9 MB in the beginning and 177.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 375.14 ms. Allocated memory is still 202.4 MB. Free memory was 177.5 MB in the beginning and 159.3 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10419.35 ms. Allocated memory was 202.4 MB in the beginning and 485.5 MB in the end (delta: 283.1 MB). Free memory was 158.6 MB in the beginning and 209.6 MB in the end (delta: -50.9 MB). Peak memory consumption was 232.2 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, 5 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 475 CheckedPairsTotal, 51 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 81 ProgramPointsBefore, 38 ProgramPointsAfterwards, 78 TransitionsBefore, 34 TransitionsAfterwards, 2760 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 1256 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 56 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 6323 CheckedPairsTotal, 49 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 104 ProgramPointsBefore, 52 ProgramPointsAfterwards, 100 TransitionsBefore, 47 TransitionsAfterwards, 5520 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 2516 VarBasedMoverChecksPositive, 102 VarBasedMoverChecksNegative, 48 SemBasedMoverChecksPositive, 123 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 0 MoverChecksTotal, 12937 CheckedPairsTotal, 60 TotalNumberOfCompositions - CounterExampleResult [Line: 25]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int g = 0; [L21] 0 static int s = 0; [L30] 0 int i; [L31] 0 pthread_t tid; [L34] 0 i = 0 VAL [g=0, s=0] [L34] EXPR 0 \read(i) [L34] COND TRUE 0 i < 3 [L35] FCALL, FORK 0 pthread_create(&tid, NULL, myThread, (void *)&i) VAL [g=0, s=0, vargp={5:0}] [L20] 1 int *myid = (int *)vargp; [L22] 1 ++s [L22] 1 ++g VAL [++g=1, g=0, myid={5:0}, s=1, vargp={5:0}, vargp={5:0}] [L22] 1 ++g VAL [g=1, myid={5:0}, s=1, vargp={5:0}, vargp={5:0}] [L24] 1 \read(*myid) VAL [\read(*myid)=0, g=1, myid={5:0}, s=1, vargp={5:0}, vargp={5:0}] [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={5:0}, s=1, vargp={5:0}, vargp={5:0}] [L20] 2 int *myid = (int *)vargp; [L22] 2 ++s VAL [\read(*myid)=0, g=1, myid={5:0}, s=2, vargp={5:0}, vargp={5:0}] [L24] 1 ++s VAL [++s=3, \read(*myid)=0, g=1, myid={5:0}, s=3, vargp={5:0}, vargp={5:0}] [L24] 1 ++g VAL [++s=3, \read(*myid)=0, g=2, myid={5:0}, s=3, vargp={5:0}, vargp={5:0}] [L25] 1 CodeAnnotStmt[Assertion] VAL [g=2, myid={5:0}, s=3, vargp={5:0}, vargp={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 3 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.1s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, 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, 11 SyntacticMatches, 1 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: 1.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 1932 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 43 ConstructedInterpolants, 4 QuantifiedInterpolants, 6423 SizeOfPredicates, 6 NumberOfNonLiveVariables, 62 ConjunctsInSsa, 12 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...