/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-Sleep-SemanticLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-13 00:02:00,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-13 00:02:00,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-13 00:02:00,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-13 00:02:00,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-13 00:02:00,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-13 00:02:00,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-13 00:02:00,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-13 00:02:00,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-13 00:02:00,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-13 00:02:00,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-13 00:02:00,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-13 00:02:00,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-13 00:02:00,101 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-13 00:02:00,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-13 00:02:00,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-13 00:02:00,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-13 00:02:00,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-13 00:02:00,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-13 00:02:00,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-13 00:02:00,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-13 00:02:00,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2021-03-13 00:02:00,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-13 00:02:00,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-13 00:02:00,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-13 00:02:00,119 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-Sleep-SemanticLbe-Delay.epf [2021-03-13 00:02:00,152 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-13 00:02:00,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-13 00:02:00,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-13 00:02:00,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-13 00:02:00,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-13 00:02:00,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-13 00:02:00,156 INFO L138 SettingsManager]: * Use SBE=true [2021-03-13 00:02:00,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-13 00:02:00,157 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-13 00:02:00,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-13 00:02:00,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-13 00:02:00,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-13 00:02:00,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-13 00:02:00,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-13 00:02:00,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-13 00:02:00,159 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-13 00:02:00,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-13 00:02:00,159 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-13 00:02:00,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-13 00:02:00,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-13 00:02:00,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-13 00:02:00,160 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-13 00:02:00,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-13 00:02:00,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-13 00:02:00,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-13 00:02:00,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-13 00:02:00,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-13 00:02:00,161 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-13 00:02:00,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-13 00:02:00,161 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-13 00:02:00,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-13 00:02:00,161 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-03-13 00:02:00,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-13 00:02:00,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-13 00:02:00,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-13 00:02:00,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-13 00:02:00,485 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-13 00:02:00,485 INFO L275 PluginConnector]: CDTParser initialized [2021-03-13 00:02:00,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c [2021-03-13 00:02:00,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1256fba65/752726b494944d668dd314b115f1938c/FLAGbee31842b [2021-03-13 00:02:00,974 INFO L306 CDTParser]: Found 1 translation units. [2021-03-13 00:02:00,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c [2021-03-13 00:02:00,975 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-13 00:02:00,975 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-13 00:02:01,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1256fba65/752726b494944d668dd314b115f1938c/FLAGbee31842b [2021-03-13 00:02:01,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1256fba65/752726b494944d668dd314b115f1938c [2021-03-13 00:02:01,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-13 00:02:01,398 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-13 00:02:01,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-13 00:02:01,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-13 00:02:01,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-13 00:02:01,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 12:02:01" (1/1) ... [2021-03-13 00:02:01,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f69365d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 12:02:01, skipping insertion in model container [2021-03-13 00:02:01,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 12:02:01" (1/1) ... [2021-03-13 00:02:01,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-13 00:02:01,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-13 00:02:01,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-13 00:02:01,524 INFO L203 MainTranslator]: Completed pre-run [2021-03-13 00:02:01,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-13 00:02:01,561 INFO L208 MainTranslator]: Completed translation [2021-03-13 00:02:01,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 12:02:01 WrapperNode [2021-03-13 00:02:01,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-13 00:02:01,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-13 00:02:01,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-13 00:02:01,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-13 00:02:01,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 12:02:01" (1/1) ... [2021-03-13 00:02:01,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 12:02:01" (1/1) ... [2021-03-13 00:02:01,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-13 00:02:01,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-13 00:02:01,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-13 00:02:01,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-13 00:02:01,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 12:02:01" (1/1) ... [2021-03-13 00:02:01,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 12:02:01" (1/1) ... [2021-03-13 00:02:01,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 12:02:01" (1/1) ... [2021-03-13 00:02:01,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 12:02:01" (1/1) ... [2021-03-13 00:02:01,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 12:02:01" (1/1) ... [2021-03-13 00:02:01,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 12:02:01" (1/1) ... [2021-03-13 00:02:01,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 12:02:01" (1/1) ... [2021-03-13 00:02:01,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-13 00:02:01,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-13 00:02:01,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-13 00:02:01,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-13 00:02:01,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 12:02:01" (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 [2021-03-13 00:02:01,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-13 00:02:01,693 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-13 00:02:01,694 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-13 00:02:01,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-13 00:02:01,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-13 00:02:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-13 00:02:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-13 00:02:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-13 00:02:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-13 00:02:01,696 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-13 00:02:01,944 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-13 00:02:01,944 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-03-13 00:02:01,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.03 12:02:01 BoogieIcfgContainer [2021-03-13 00:02:01,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-13 00:02:01,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-13 00:02:01,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-13 00:02:01,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-13 00:02:01,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 12:02:01" (1/3) ... [2021-03-13 00:02:01,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4b0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 12:02:01, skipping insertion in model container [2021-03-13 00:02:01,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 12:02:01" (2/3) ... [2021-03-13 00:02:01,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4b0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 12:02:01, skipping insertion in model container [2021-03-13 00:02:01,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.03 12:02:01" (3/3) ... [2021-03-13 00:02:01,954 INFO L111 eAbstractionObserver]: Analyzing ICFG forkJoinInLoop.c [2021-03-13 00:02:01,959 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-13 00:02:01,959 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-13 00:02:01,963 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-13 00:02:01,963 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-13 00:02:01,989 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:02:01,989 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:02:01,989 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:02:01,989 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:02:01,989 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:02:01,989 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:02:01,990 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:02:01,990 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:02:01,990 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:02:01,990 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:02:01,992 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:02:01,993 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:02:01,993 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:02:01,993 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:02:01,993 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:02:02,000 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-13 00:02:02,014 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:02:02,068 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:02:02,068 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:02:02,068 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:02:02,068 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:02:02,068 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:02:02,068 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:02:02,068 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:02:02,069 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:02:02,078 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:02:02,078 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 46 transitions, 100 flow [2021-03-13 00:02:02,081 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 46 transitions, 100 flow [2021-03-13 00:02:02,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 46 transitions, 100 flow [2021-03-13 00:02:02,118 INFO L129 PetriNetUnfolder]: 2/45 cut-off events. [2021-03-13 00:02:02,118 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-13 00:02:02,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 45 events. 2/45 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2021-03-13 00:02:02,122 INFO L116 LiptonReduction]: Number of co-enabled transitions 30 [2021-03-13 00:02:03,270 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-03-13 00:02:03,476 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-03-13 00:02:03,539 INFO L131 LiptonReduction]: Checked pairs total: 37 [2021-03-13 00:02:03,540 INFO L133 LiptonReduction]: Total number of compositions: 38 [2021-03-13 00:02:03,567 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:02:03,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:02:03,571 INFO L82 PathProgramCache]: Analyzing trace with hash 5564, now seen corresponding path program 1 times [2021-03-13 00:02:03,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:02:03,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802676987] [2021-03-13 00:02:03,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:02:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:02:03,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 00:02:03,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802676987] [2021-03-13 00:02:03,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:02:03,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-13 00:02:03,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072046185] [2021-03-13 00:02:03,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-13 00:02:03,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:02:03,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-13 00:02:03,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-13 00:02:03,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:02:03,723 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:02:03,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-03-13 00:02:03,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:02:03,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 00:02:03,752 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-13 00:02:03,752 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:02:03,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:02:03,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1417100366, now seen corresponding path program 1 times [2021-03-13 00:02:03,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:02:03,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220661007] [2021-03-13 00:02:03,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:02:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:02:03,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 00:02:03,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220661007] [2021-03-13 00:02:03,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948901446] [2021-03-13 00:02:03,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 00:02:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:02:03,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-13 00:02:03,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 00:02:04,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2021-03-13 00:02:04,041 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 00:02:04,074 INFO L628 ElimStorePlain]: treesize reduction 18, result has 52.6 percent of original size [2021-03-13 00:02:04,078 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-13 00:02:04,078 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:25, output treesize:12 [2021-03-13 00:02:04,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-03-13 00:02:04,137 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 00:02:04,142 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 00:02:04,147 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-03-13 00:02:04,147 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:19 [2021-03-13 00:02:04,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-03-13 00:02:04,352 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-13 00:02:04,366 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-13 00:02:04,370 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-03-13 00:02:04,370 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:19 [2021-03-13 00:02:04,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 00:02:04,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 00:02:04,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-03-13 00:02:04,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843428763] [2021-03-13 00:02:04,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-13 00:02:04,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:02:04,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-13 00:02:04,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-03-13 00:02:04,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:02:04,411 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:02:04,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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) [2021-03-13 00:02:04,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 00:02:04,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:02:04,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 00:02:04,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:02:04,707 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 00:02:04,707 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:02:04,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:02:04,709 INFO L82 PathProgramCache]: Analyzing trace with hash -61300440, now seen corresponding path program 2 times [2021-03-13 00:02:04,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:02:04,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837330453] [2021-03-13 00:02:04,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:02:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:02:04,726 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:02:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:02:04,742 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:02:04,758 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:02:04,758 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:02:04,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-13 00:02:04,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.03 12:02:04 BasicIcfg [2021-03-13 00:02:04,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-13 00:02:04,792 INFO L168 Benchmark]: Toolchain (without parser) took 3396.89 ms. Allocated memory was 255.9 MB in the beginning and 385.9 MB in the end (delta: 130.0 MB). Free memory was 232.3 MB in the beginning and 298.1 MB in the end (delta: -65.8 MB). Peak memory consumption was 64.0 MB. Max. memory is 16.0 GB. [2021-03-13 00:02:04,792 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-13 00:02:04,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.95 ms. Allocated memory was 255.9 MB in the beginning and 385.9 MB in the end (delta: 130.0 MB). Free memory was 231.7 MB in the beginning and 370.1 MB in the end (delta: -138.5 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.0 GB. [2021-03-13 00:02:04,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.69 ms. Allocated memory is still 385.9 MB. Free memory was 370.1 MB in the beginning and 368.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-13 00:02:04,793 INFO L168 Benchmark]: Boogie Preprocessor took 36.42 ms. Allocated memory is still 385.9 MB. Free memory was 368.4 MB in the beginning and 367.5 MB in the end (delta: 947.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-13 00:02:04,793 INFO L168 Benchmark]: RCFGBuilder took 305.09 ms. Allocated memory is still 385.9 MB. Free memory was 367.5 MB in the beginning and 352.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-13 00:02:04,793 INFO L168 Benchmark]: TraceAbstraction took 2844.09 ms. Allocated memory is still 385.9 MB. Free memory was 351.6 MB in the beginning and 298.1 MB in the end (delta: 53.6 MB). Peak memory consumption was 55.3 MB. Max. memory is 16.0 GB. [2021-03-13 00:02:04,794 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 162.95 ms. Allocated memory was 255.9 MB in the beginning and 385.9 MB in the end (delta: 130.0 MB). Free memory was 231.7 MB in the beginning and 370.1 MB in the end (delta: -138.5 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.69 ms. Allocated memory is still 385.9 MB. Free memory was 370.1 MB in the beginning and 368.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 36.42 ms. Allocated memory is still 385.9 MB. Free memory was 368.4 MB in the beginning and 367.5 MB in the end (delta: 947.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 305.09 ms. Allocated memory is still 385.9 MB. Free memory was 367.5 MB in the beginning and 352.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2844.09 ms. Allocated memory is still 385.9 MB. Free memory was 351.6 MB in the beginning and 298.1 MB in the end (delta: 53.6 MB). Peak memory consumption was 55.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1459.0ms, 48 PlacesBefore, 13 PlacesAfterwards, 46 TransitionsBefore, 10 TransitionsAfterwards, 30 CoEnabledTransitionPairs, 4 FixpointIterations, 31 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 38 TotalNumberOfCompositions, 37 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 0, positive unconditional: 25, 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: 25, positive: 25, positive conditional: 0, positive unconditional: 25, 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: 37, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 25, unknown conditional: 0, unknown unconditional: 25] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 12, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 9 - CounterExampleResult [Line: 30]: assertion can be violated assertion can be violated We found a FailurePath: [L19] 0 pthread_t thread_id; [L21] 0 int x = 1; [L23] EXPR 0 \read(x) [L23] COND TRUE 0 x < 3 [L24] FCALL, FORK 0 pthread_create(&thread_id, NULL, foo, &x) VAL [i={8:0}] [L15] 1 int y = 4; [L25] 0 \read(x) [L26] 0 \read(thread_id) VAL [i={8:0}, i={8:0}, y=4] [L26] FCALL, JOIN 1 pthread_join(thread_id, NULL) VAL [i={8:0}, i={8:0}, y=4] [L27] 0 \read(x) [L28] EXPR 0 \read(x) [L28] 0 x++ [L23] EXPR 0 \read(x) [L23] COND TRUE 0 x < 3 [L24] FCALL, FORK 0 pthread_create(&thread_id, NULL, foo, &x) VAL [i={8:0}] [L15] 1 int y = 4; [L25] 0 \read(x) [L26] 0 \read(thread_id) VAL [i={8:0}, i={8:0}, y=4] [L26] FCALL, JOIN 1 pthread_join(thread_id, NULL) VAL [i={8:0}, i={8:0}, y=4] [L27] 0 \read(x) [L28] EXPR 0 \read(x) [L28] 0 x++ [L23] EXPR 0 \read(x) [L23] COND FALSE 0 !(x < 3) [L30] 0 CodeAnnotStmt[Assertion] VAL [i={8:0}, i={8:0}, y=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2720.6ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1491.3ms, PartialOrderReductionTime: 109.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 8, 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: 20.7ms SsaConstructionTime, 75.9ms SatisfiabilityAnalysisTime, 600.0ms InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 15 ConstructedInterpolants, 6 QuantifiedInterpolants, 214 SizeOfPredicates, 4 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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...