/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 06:06:56,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 06:06:56,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 06:06:56,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 06:06:56,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 06:06:56,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 06:06:56,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 06:06:56,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 06:06:56,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 06:06:56,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 06:06:56,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 06:06:56,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 06:06:56,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 06:06:56,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 06:06:56,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 06:06:56,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 06:06:56,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 06:06:56,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 06:06:56,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 06:06:56,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 06:06:56,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 06:06:56,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 06:06:56,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 06:06:56,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 06:06:56,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 06:06:56,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 06:06:56,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 06:06:56,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 06:06:56,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 06:06:56,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 06:06:56,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 06:06:56,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 06:06:56,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 06:06:56,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 06:06:56,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 06:06:56,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 06:06:56,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 06:06:56,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 06:06:56,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 06:06:56,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 06:06:56,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 06:06:56,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf [2020-10-16 06:06:56,567 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 06:06:56,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 06:06:56,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 06:06:56,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 06:06:56,572 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 06:06:56,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 06:06:56,573 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 06:06:56,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 06:06:56,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 06:06:56,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 06:06:56,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 06:06:56,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 06:06:56,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 06:06:56,575 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 06:06:56,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 06:06:56,576 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 06:06:56,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 06:06:56,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 06:06:56,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 06:06:56,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 06:06:56,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 06:06:56,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 06:06:56,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 06:06:56,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 06:06:56,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 06:06:56,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 06:06:56,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 06:06:56,579 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 06:06:56,579 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 06:06:56,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 06:06:56,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 06:06:56,917 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 06:06:56,919 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 06:06:56,920 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 06:06:56,920 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-10-16 06:06:57,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92a052d45/75c0587c09b34440a49acb8a52a7e845/FLAG3a1fc70e3 [2020-10-16 06:06:57,451 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 06:06:57,452 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-10-16 06:06:57,452 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-16 06:06:57,453 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-16 06:06:57,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92a052d45/75c0587c09b34440a49acb8a52a7e845/FLAG3a1fc70e3 [2020-10-16 06:06:57,815 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92a052d45/75c0587c09b34440a49acb8a52a7e845 [2020-10-16 06:06:57,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 06:06:57,828 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 06:06:57,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 06:06:57,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 06:06:57,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 06:06:57,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 06:06:57" (1/1) ... [2020-10-16 06:06:57,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50d9e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:06:57, skipping insertion in model container [2020-10-16 06:06:57,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 06:06:57" (1/1) ... [2020-10-16 06:06:57,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 06:06:57,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 06:06:58,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 06:06:58,086 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 06:06:58,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 06:06:58,206 INFO L208 MainTranslator]: Completed translation [2020-10-16 06:06:58,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:06:58 WrapperNode [2020-10-16 06:06:58,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 06:06:58,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 06:06:58,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 06:06:58,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 06:06:58,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:06:58" (1/1) ... [2020-10-16 06:06:58,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:06:58" (1/1) ... [2020-10-16 06:06:58,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 06:06:58,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 06:06:58,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 06:06:58,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 06:06:58,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:06:58" (1/1) ... [2020-10-16 06:06:58,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:06:58" (1/1) ... [2020-10-16 06:06:58,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:06:58" (1/1) ... [2020-10-16 06:06:58,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:06:58" (1/1) ... [2020-10-16 06:06:58,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:06:58" (1/1) ... [2020-10-16 06:06:58,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:06:58" (1/1) ... [2020-10-16 06:06:58,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:06:58" (1/1) ... [2020-10-16 06:06:58,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 06:06:58,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 06:06:58,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 06:06:58,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 06:06:58,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:06:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 06:06:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 06:06:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-16 06:06:58,349 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-16 06:06:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 06:06:58,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 06:06:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 06:06:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 06:06:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 06:06:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 06:06:58,352 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 06:06:58,614 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 06:06:58,614 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-16 06:06:58,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 06:06:58 BoogieIcfgContainer [2020-10-16 06:06:58,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 06:06:58,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 06:06:58,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 06:06:58,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 06:06:58,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 06:06:57" (1/3) ... [2020-10-16 06:06:58,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51257364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 06:06:58, skipping insertion in model container [2020-10-16 06:06:58,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 06:06:58" (2/3) ... [2020-10-16 06:06:58,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51257364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 06:06:58, skipping insertion in model container [2020-10-16 06:06:58,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 06:06:58" (3/3) ... [2020-10-16 06:06:58,628 INFO L111 eAbstractionObserver]: Analyzing ICFG forkMultipleTimes.c [2020-10-16 06:06:58,643 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 06:06:58,652 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 06:06:58,653 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 06:06:58,701 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,704 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,705 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,705 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,705 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,705 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,705 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,706 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,706 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,706 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,707 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,707 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,707 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,707 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,708 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,710 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,711 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,711 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,711 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,712 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,712 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,712 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,712 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,713 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,716 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,717 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,717 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,717 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,718 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,721 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,722 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,722 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,722 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,722 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,723 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,723 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,725 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,725 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,726 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,726 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,726 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,726 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,727 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,727 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,727 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,737 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,738 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,738 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,738 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,739 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,739 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,739 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,751 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,751 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,751 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,752 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,752 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,752 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,752 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,764 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,764 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,765 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,765 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,765 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,765 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,766 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 06:06:58,799 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 06:06:58,818 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 06:06:58,818 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 06:06:58,818 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 06:06:58,818 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 06:06:58,818 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 06:06:58,818 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 06:06:58,819 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 06:06:58,819 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 06:06:58,834 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 196 flow [2020-10-16 06:06:58,897 INFO L129 PetriNetUnfolder]: 5/85 cut-off events. [2020-10-16 06:06:58,897 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-16 06:06:58,903 INFO L80 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 85 events. 5/85 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. [2020-10-16 06:06:58,903 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 77 transitions, 196 flow [2020-10-16 06:06:58,910 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 61 transitions, 158 flow [2020-10-16 06:06:58,913 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 06:06:58,916 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 61 transitions, 158 flow [2020-10-16 06:06:58,919 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 61 transitions, 158 flow [2020-10-16 06:06:58,920 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 65 places, 61 transitions, 158 flow [2020-10-16 06:06:58,952 INFO L129 PetriNetUnfolder]: 5/72 cut-off events. [2020-10-16 06:06:58,953 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-16 06:06:58,954 INFO L80 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 72 events. 5/72 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 109 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. [2020-10-16 06:06:58,958 INFO L117 LiptonReduction]: Number of co-enabled transitions 1008 [2020-10-16 06:07:00,264 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-10-16 06:07:00,369 INFO L132 LiptonReduction]: Checked pairs total: 3474 [2020-10-16 06:07:00,369 INFO L134 LiptonReduction]: Total number of compositions: 30 [2020-10-16 06:07:00,372 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1461 [2020-10-16 06:07:00,388 INFO L129 PetriNetUnfolder]: 5/41 cut-off events. [2020-10-16 06:07:00,388 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-16 06:07:00,388 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 06:07:00,390 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 06:07:00,390 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 06:07:00,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 06:07:00,396 INFO L82 PathProgramCache]: Analyzing trace with hash 858566331, now seen corresponding path program 1 times [2020-10-16 06:07:00,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 06:07:00,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117604459] [2020-10-16 06:07:00,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 06:07:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 06:07:01,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 06:07:01,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117604459] [2020-10-16 06:07:01,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 06:07:01,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 06:07:01,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002727410] [2020-10-16 06:07:01,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 06:07:01,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 06:07:01,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 06:07:01,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-16 06:07:01,067 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 107 [2020-10-16 06:07:01,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 98 flow. Second operand 13 states. [2020-10-16 06:07:01,070 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 06:07:01,070 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 107 [2020-10-16 06:07:01,072 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 06:07:02,290 INFO L129 PetriNetUnfolder]: 887/1497 cut-off events. [2020-10-16 06:07:02,291 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2020-10-16 06:07:02,300 INFO L80 FinitePrefix]: Finished finitePrefix Result has 3009 conditions, 1497 events. 887/1497 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7223 event pairs, 86 based on Foata normal form. 1/1474 useless extension candidates. Maximal degree in co-relation 2605. Up to 753 conditions per place. [2020-10-16 06:07:02,317 INFO L132 encePairwiseOnDemand]: 92/107 looper letters, 78 selfloop transitions, 39 changer transitions 4/127 dead transitions. [2020-10-16 06:07:02,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 127 transitions, 541 flow [2020-10-16 06:07:02,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-16 06:07:02,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-16 06:07:02,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 870 transitions. [2020-10-16 06:07:02,339 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.4782847718526663 [2020-10-16 06:07:02,340 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 870 transitions. [2020-10-16 06:07:02,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 870 transitions. [2020-10-16 06:07:02,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 06:07:02,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 870 transitions. [2020-10-16 06:07:02,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 18 states. [2020-10-16 06:07:02,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 18 states. [2020-10-16 06:07:02,363 INFO L81 ComplementDD]: Finished complementDD. Result 18 states. [2020-10-16 06:07:02,366 INFO L185 Difference]: Start difference. First operand has 35 places, 31 transitions, 98 flow. Second operand 17 states and 870 transitions. [2020-10-16 06:07:02,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 127 transitions, 541 flow [2020-10-16 06:07:02,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 127 transitions, 511 flow, removed 0 selfloop flow, removed 6 redundant places. [2020-10-16 06:07:02,384 INFO L241 Difference]: Finished difference. Result has 54 places, 68 transitions, 316 flow [2020-10-16 06:07:02,388 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=316, PETRI_PLACES=54, PETRI_TRANSITIONS=68} [2020-10-16 06:07:02,389 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 19 predicate places. [2020-10-16 06:07:02,389 INFO L481 AbstractCegarLoop]: Abstraction has has 54 places, 68 transitions, 316 flow [2020-10-16 06:07:02,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 06:07:02,389 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 06:07:02,390 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 06:07:02,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 06:07:02,390 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-16 06:07:02,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 06:07:02,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1222424341, now seen corresponding path program 1 times [2020-10-16 06:07:02,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 06:07:02,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961000768] [2020-10-16 06:07:02,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 06:07:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 06:07:02,449 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 06:07:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 06:07:02,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 06:07:02,556 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 06:07:02,556 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 06:07:02,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 06:07:02,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 06:07:02 BasicIcfg [2020-10-16 06:07:02,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 06:07:02,623 INFO L168 Benchmark]: Toolchain (without parser) took 4795.18 ms. Allocated memory was 246.4 MB in the beginning and 429.4 MB in the end (delta: 183.0 MB). Free memory was 201.3 MB in the beginning and 394.9 MB in the end (delta: -193.6 MB). Peak memory consumption was 170.8 MB. Max. memory is 14.2 GB. [2020-10-16 06:07:02,624 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 246.4 MB. Free memory is still 222.8 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 06:07:02,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.32 ms. Allocated memory was 246.4 MB in the beginning and 299.9 MB in the end (delta: 53.5 MB). Free memory was 201.3 MB in the beginning and 275.0 MB in the end (delta: -73.7 MB). Peak memory consumption was 27.4 MB. Max. memory is 14.2 GB. [2020-10-16 06:07:02,626 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.93 ms. Allocated memory is still 299.9 MB. Free memory is still 275.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 06:07:02,630 INFO L168 Benchmark]: Boogie Preprocessor took 35.96 ms. Allocated memory is still 299.9 MB. Free memory was 275.0 MB in the beginning and 271.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.2 GB. [2020-10-16 06:07:02,633 INFO L168 Benchmark]: RCFGBuilder took 332.81 ms. Allocated memory is still 299.9 MB. Free memory was 271.2 MB in the beginning and 253.8 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 14.2 GB. [2020-10-16 06:07:02,634 INFO L168 Benchmark]: TraceAbstraction took 3997.55 ms. Allocated memory was 299.9 MB in the beginning and 429.4 MB in the end (delta: 129.5 MB). Free memory was 253.8 MB in the beginning and 394.9 MB in the end (delta: -141.2 MB). Peak memory consumption was 169.7 MB. Max. memory is 14.2 GB. [2020-10-16 06:07:02,641 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 246.4 MB. Free memory is still 222.8 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 377.32 ms. Allocated memory was 246.4 MB in the beginning and 299.9 MB in the end (delta: 53.5 MB). Free memory was 201.3 MB in the beginning and 275.0 MB in the end (delta: -73.7 MB). Peak memory consumption was 27.4 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 40.93 ms. Allocated memory is still 299.9 MB. Free memory is still 275.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 35.96 ms. Allocated memory is still 299.9 MB. Free memory was 275.0 MB in the beginning and 271.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.2 GB. * RCFGBuilder took 332.81 ms. Allocated memory is still 299.9 MB. Free memory was 271.2 MB in the beginning and 253.8 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3997.55 ms. Allocated memory was 299.9 MB in the beginning and 429.4 MB in the end (delta: 129.5 MB). Free memory was 253.8 MB in the beginning and 394.9 MB in the end (delta: -141.2 MB). Peak memory consumption was 169.7 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 742 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 45 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 189 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 65 PlacesBefore, 35 PlacesAfterwards, 61 TransitionsBefore, 31 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 4 FixpointIterations, 12 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 30 TotalNumberOfCompositions, 3474 MoverChecksTotal - CounterExampleResult [Line: 37]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int counter = 0; [L23] 0 int val = 0; [L25] 0 pthread_t first_thread_id; [L26] 0 pthread_t second_thread_id; [L27] 0 pthread_t third_thread_id; [L29] FCALL, FORK 0 pthread_create(&first_thread_id, NULL, foo, &val) VAL [counter=0, n={5:0}] [L16] 1 int *x = (int *)n; [L17] 1 ++counter VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L30] FCALL, FORK 0 pthread_create(&second_thread_id, NULL, foo, &val) VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L16] 2 int *x = (int *)n; [L17] 2 ++counter VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L31] FCALL, FORK 0 pthread_create(&third_thread_id, NULL, foo, &val) VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L16] 3 int *x = (int *)n; [L17] EXPR 3 ++counter VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L33] 0 \read(first_thread_id) VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L17] 1 ++counter VAL [++counter=1, counter=2, n={5:0}, n={5:0}, x={5:0}] [L17] 3 *x = ++counter [L18] 3 return 0; [L17] 1 *x = ++counter [L18] 1 return 0; [L33] FCALL, JOIN 1 pthread_join(first_thread_id, NULL) VAL [++counter=1, \result={0:0}, counter=2, n={5:0}, n={5:0}, x={5:0}] [L34] 0 \read(second_thread_id) VAL [++counter=1, \result={0:0}, counter=2, n={5:0}, n={5:0}, x={5:0}] [L17] EXPR 2 ++counter VAL [++counter=1, \result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] [L17] 2 *x = ++counter [L18] 2 return 0; [L34] FCALL, JOIN 2 pthread_join(second_thread_id, NULL) VAL [\result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] [L35] 0 \read(third_thread_id) VAL [\result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] [L35] FCALL, JOIN 3 pthread_join(third_thread_id, NULL) VAL [\result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] [L37] FCALL 0 IdentifierExpression[val] [L37] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 3.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 13 SDtfs, 64 SDslu, 37 SDs, 0 SdLazy, 594 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=316occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 9480 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...