/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/05-end-no-begin.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 03:38:46,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 03:38:46,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 03:38:46,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 03:38:46,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 03:38:46,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 03:38:46,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 03:38:46,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 03:38:46,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 03:38:46,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 03:38:46,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 03:38:46,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 03:38:46,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 03:38:46,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 03:38:46,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 03:38:46,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 03:38:46,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 03:38:46,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 03:38:46,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 03:38:46,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 03:38:46,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 03:38:46,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 03:38:46,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 03:38:46,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 03:38:46,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 03:38:46,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 03:38:46,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 03:38:46,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 03:38:46,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 03:38:46,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 03:38:46,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 03:38:46,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 03:38:46,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 03:38:46,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 03:38:46,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 03:38:46,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 03:38:46,728 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 03:38:46,781 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 03:38:46,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 03:38:46,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 03:38:46,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 03:38:46,788 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 03:38:46,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 03:38:46,789 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 03:38:46,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 03:38:46,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 03:38:46,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 03:38:46,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 03:38:46,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 03:38:46,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 03:38:46,792 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 03:38:46,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 03:38:46,792 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 03:38:46,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 03:38:46,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 03:38:46,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 03:38:46,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 03:38:46,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 03:38:46,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:38:46,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 03:38:46,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 03:38:46,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 03:38:46,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 03:38:46,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 03:38:46,795 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 03:38:46,795 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 03:38:46,795 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 03:38:46,795 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 03:38:47,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 03:38:47,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 03:38:47,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 03:38:47,234 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 03:38:47,239 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 03:38:47,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/05-end-no-begin.c [2021-04-29 03:38:47,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bbe08e5c/180df409ac0f469f95714867bb86996b/FLAG9f2af57fe [2021-04-29 03:38:48,060 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 03:38:48,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/05-end-no-begin.c [2021-04-29 03:38:48,061 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-04-29 03:38:48,111 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bbe08e5c/180df409ac0f469f95714867bb86996b/FLAG9f2af57fe [2021-04-29 03:38:48,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bbe08e5c/180df409ac0f469f95714867bb86996b [2021-04-29 03:38:48,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 03:38:48,466 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 03:38:48,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 03:38:48,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 03:38:48,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 03:38:48,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:38:48" (1/1) ... [2021-04-29 03:38:48,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19254c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:48, skipping insertion in model container [2021-04-29 03:38:48,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:38:48" (1/1) ... [2021-04-29 03:38:48,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 03:38:48,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 03:38:48,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:38:48,677 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 03:38:48,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:38:48,715 INFO L208 MainTranslator]: Completed translation [2021-04-29 03:38:48,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:48 WrapperNode [2021-04-29 03:38:48,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 03:38:48,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 03:38:48,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 03:38:48,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 03:38:48,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:48" (1/1) ... [2021-04-29 03:38:48,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:48" (1/1) ... [2021-04-29 03:38:48,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 03:38:48,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 03:38:48,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 03:38:48,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 03:38:48,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:48" (1/1) ... [2021-04-29 03:38:48,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:48" (1/1) ... [2021-04-29 03:38:48,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:48" (1/1) ... [2021-04-29 03:38:48,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:48" (1/1) ... [2021-04-29 03:38:48,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:48" (1/1) ... [2021-04-29 03:38:48,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:48" (1/1) ... [2021-04-29 03:38:48,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:48" (1/1) ... [2021-04-29 03:38:48,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 03:38:48,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 03:38:48,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 03:38:48,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 03:38:48,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:38:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 03:38:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 03:38:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-04-29 03:38:48,881 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-04-29 03:38:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 03:38:48,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 03:38:48,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 03:38:48,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 03:38:48,884 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 03:38:49,213 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 03:38:49,214 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-04-29 03:38:49,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:38:49 BoogieIcfgContainer [2021-04-29 03:38:49,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 03:38:49,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 03:38:49,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 03:38:49,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 03:38:49,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 03:38:48" (1/3) ... [2021-04-29 03:38:49,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27230927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:38:49, skipping insertion in model container [2021-04-29 03:38:49,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:48" (2/3) ... [2021-04-29 03:38:49,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27230927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:38:49, skipping insertion in model container [2021-04-29 03:38:49,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:38:49" (3/3) ... [2021-04-29 03:38:49,235 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-end-no-begin.c [2021-04-29 03:38:49,255 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 03:38:49,267 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 03:38:49,271 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 03:38:49,341 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,342 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,342 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,342 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,343 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,343 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,343 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,343 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,349 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,350 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,350 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,350 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,357 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,357 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,358 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,358 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:49,376 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:38:49,423 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:38:49,469 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:38:49,469 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:38:49,469 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:38:49,469 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:38:49,469 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:38:49,470 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:38:49,470 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:38:49,470 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:38:49,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 51 flow [2021-04-29 03:38:49,578 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-04-29 03:38:49,583 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:38:49,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-04-29 03:38:49,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 51 flow [2021-04-29 03:38:49,604 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 21 places, 17 transitions, 37 flow [2021-04-29 03:38:49,614 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:38:49,669 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 17 transitions, 37 flow [2021-04-29 03:38:49,676 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 17 transitions, 37 flow [2021-04-29 03:38:49,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 17 transitions, 37 flow [2021-04-29 03:38:49,702 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-04-29 03:38:49,702 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:38:49,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-04-29 03:38:49,708 INFO L146 LiptonReduction]: Number of co-enabled transitions 32 [2021-04-29 03:38:50,928 INFO L158 LiptonReduction]: Checked pairs total: 124 [2021-04-29 03:38:50,929 INFO L160 LiptonReduction]: Total number of compositions: 24 [2021-04-29 03:38:50,932 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1327 [2021-04-29 03:38:50,956 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-04-29 03:38:50,956 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:38:50,957 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:38:50,958 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-29 03:38:50,958 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:38:50,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:38:50,968 INFO L82 PathProgramCache]: Analyzing trace with hash 3208651, now seen corresponding path program 1 times [2021-04-29 03:38:50,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:38:50,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43929588] [2021-04-29 03:38:50,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:38:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:38:51,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:51,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:38:51,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:51,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 03:38:51,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:38:51,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43929588] [2021-04-29 03:38:51,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:38:51,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 03:38:51,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673553257] [2021-04-29 03:38:51,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:38:51,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:38:51,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:38:51,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:38:51,187 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 47 [2021-04-29 03:38:51,189 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:51,189 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:38:51,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 47 [2021-04-29 03:38:51,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:38:51,262 INFO L129 PetriNetUnfolder]: 6/38 cut-off events. [2021-04-29 03:38:51,262 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:38:51,264 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 38 events. 6/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 129 event pairs, 3 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 49. Up to 26 conditions per place. [2021-04-29 03:38:51,266 INFO L132 encePairwiseOnDemand]: 41/47 looper letters, 2 selfloop transitions, 4 changer transitions 18/25 dead transitions. [2021-04-29 03:38:51,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 25 transitions, 85 flow [2021-04-29 03:38:51,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:38:51,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:38:51,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2021-04-29 03:38:51,282 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6099290780141844 [2021-04-29 03:38:51,282 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 86 transitions. [2021-04-29 03:38:51,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 86 transitions. [2021-04-29 03:38:51,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:38:51,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 86 transitions. [2021-04-29 03:38:51,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:51,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:51,296 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:51,299 INFO L185 Difference]: Start difference. First operand has 25 places, 21 transitions, 45 flow. Second operand 3 states and 86 transitions. [2021-04-29 03:38:51,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 25 transitions, 85 flow [2021-04-29 03:38:51,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 25 transitions, 84 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 03:38:51,306 INFO L241 Difference]: Finished difference. Result has 27 places, 7 transitions, 30 flow [2021-04-29 03:38:51,308 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=27, PETRI_TRANSITIONS=7} [2021-04-29 03:38:51,309 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2021-04-29 03:38:51,309 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:38:51,310 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 7 transitions, 30 flow [2021-04-29 03:38:51,310 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 7 transitions, 30 flow [2021-04-29 03:38:51,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 13 places, 7 transitions, 30 flow [2021-04-29 03:38:51,314 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2021-04-29 03:38:51,314 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 03:38:51,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 9 events. 0/9 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 0/7 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-04-29 03:38:51,315 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 03:38:51,316 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:38:51,317 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:38:51,317 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-04-29 03:38:51,319 INFO L480 AbstractCegarLoop]: Abstraction has has 13 places, 7 transitions, 30 flow [2021-04-29 03:38:51,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:51,319 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:38:51,320 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-29 03:38:51,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 03:38:51,320 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:38:51,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:38:51,321 INFO L82 PathProgramCache]: Analyzing trace with hash 99468611, now seen corresponding path program 1 times [2021-04-29 03:38:51,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:38:51,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637572515] [2021-04-29 03:38:51,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:38:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:38:51,341 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:38:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:38:51,352 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:38:51,372 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:38:51,373 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:38:51,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 03:38:51,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 03:38:51 BasicIcfg [2021-04-29 03:38:51,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 03:38:51,399 INFO L168 Benchmark]: Toolchain (without parser) took 2977.04 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 276.8 MB in the beginning and 334.4 MB in the end (delta: -57.5 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.0 GB. [2021-04-29 03:38:51,400 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:38:51,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.69 ms. Allocated memory is still 302.0 MB. Free memory was 273.7 MB in the beginning and 265.2 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-04-29 03:38:51,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.24 ms. Allocated memory is still 302.0 MB. Free memory was 265.2 MB in the beginning and 263.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 03:38:51,402 INFO L168 Benchmark]: Boogie Preprocessor took 19.53 ms. Allocated memory is still 302.0 MB. Free memory was 263.7 MB in the beginning and 262.9 MB in the end (delta: 719.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:38:51,403 INFO L168 Benchmark]: RCFGBuilder took 434.13 ms. Allocated memory is still 302.0 MB. Free memory was 262.7 MB in the beginning and 251.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-04-29 03:38:51,404 INFO L168 Benchmark]: TraceAbstraction took 2176.91 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 250.6 MB in the beginning and 334.4 MB in the end (delta: -83.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:38:51,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 248.69 ms. Allocated memory is still 302.0 MB. Free memory was 273.7 MB in the beginning and 265.2 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 42.24 ms. Allocated memory is still 302.0 MB. Free memory was 265.2 MB in the beginning and 263.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.53 ms. Allocated memory is still 302.0 MB. Free memory was 263.7 MB in the beginning and 262.9 MB in the end (delta: 719.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 434.13 ms. Allocated memory is still 302.0 MB. Free memory was 262.7 MB in the beginning and 251.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2176.91 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 250.6 MB in the beginning and 334.4 MB in the end (delta: -83.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1252.6ms, 21 PlacesBefore, 25 PlacesAfterwards, 17 TransitionsBefore, 21 TransitionsAfterwards, 32 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 24 TotalNumberOfCompositions, 124 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 33, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 33, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 33, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 87, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 52, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 20, Positive conditional cache size: 20, Positive unconditional cache size: 0, Negative cache size: 13, Negative conditional cache size: 13, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.5ms, 27 PlacesBefore, 13 PlacesAfterwards, 7 TransitionsBefore, 7 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 20, Positive conditional cache size: 20, Positive unconditional cache size: 0, Negative cache size: 13, Negative conditional cache size: 13, Negative unconditional cache size: 0 - CounterExampleResult [Line: 30]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = 0; [L23] 0 pthread_t threadId; [L24] FCALL, FORK 0 pthread_create(&threadId, NULL, &foo, NULL) VAL [arg={0:0}, x=0] [L26] 0 x = 1 VAL [arg={0:0}, x=1] [L18] 1 x = 2 [L19] 1 return (void*)NULL; [L27] 0 x = x + 1 [L30] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, arg={0:0}, arg={0:0}, x=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 11.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 1914.9ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 129.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1473.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 15 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 46.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.8ms SsaConstructionTime, 37.7ms SatisfiabilityAnalysisTime, 59.6ms InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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...