/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 13:07:26,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 13:07:26,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 13:07:26,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 13:07:26,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 13:07:26,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 13:07:26,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 13:07:26,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 13:07:26,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 13:07:26,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 13:07:26,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 13:07:26,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 13:07:26,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 13:07:26,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 13:07:26,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 13:07:26,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 13:07:26,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 13:07:26,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 13:07:26,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 13:07:26,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 13:07:26,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 13:07:26,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 13:07:26,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 13:07:26,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 13:07:26,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 13:07:26,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 13:07:26,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 13:07:26,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 13:07:26,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 13:07:26,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 13:07:26,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 13:07:26,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 13:07:26,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 13:07:26,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 13:07:26,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 13:07:26,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 13:07:26,884 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 13:07:26,918 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 13:07:26,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 13:07:26,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 13:07:26,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 13:07:26,922 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 13:07:26,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 13:07:26,923 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 13:07:26,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 13:07:26,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 13:07:26,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 13:07:26,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 13:07:26,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 13:07:26,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 13:07:26,925 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 13:07:26,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 13:07:26,925 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 13:07:26,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 13:07:26,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 13:07:26,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 13:07:26,926 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 13:07:26,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 13:07:26,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 13:07:26,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 13:07:26,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 13:07:26,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 13:07:26,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 13:07:26,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 13:07:26,928 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 13:07:26,928 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 13:07:26,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 13:07:26,928 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 13:07:27,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 13:07:27,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 13:07:27,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 13:07:27,284 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 13:07:27,285 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 13:07:27,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2021-03-26 13:07:27,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d656a3cd2/1ac476f7422649a4aa8a7bc6a5f761db/FLAG4caac50f0 [2021-03-26 13:07:27,780 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 13:07:27,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2021-03-26 13:07:27,781 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-26 13:07:27,781 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-26 13:07:27,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d656a3cd2/1ac476f7422649a4aa8a7bc6a5f761db/FLAG4caac50f0 [2021-03-26 13:07:27,831 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d656a3cd2/1ac476f7422649a4aa8a7bc6a5f761db [2021-03-26 13:07:27,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 13:07:27,839 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 13:07:27,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 13:07:27,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 13:07:27,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 13:07:27,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 01:07:27" (1/1) ... [2021-03-26 13:07:27,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5438de7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 01:07:27, skipping insertion in model container [2021-03-26 13:07:27,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 01:07:27" (1/1) ... [2021-03-26 13:07:27,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 13:07:27,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 13:07:28,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 13:07:28,042 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 13:07:28,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 13:07:28,067 INFO L208 MainTranslator]: Completed translation [2021-03-26 13:07:28,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 01:07:28 WrapperNode [2021-03-26 13:07:28,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 13:07:28,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 13:07:28,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 13:07:28,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 13:07:28,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 01:07:28" (1/1) ... [2021-03-26 13:07:28,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 01:07:28" (1/1) ... [2021-03-26 13:07:28,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 13:07:28,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 13:07:28,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 13:07:28,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 13:07:28,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 01:07:28" (1/1) ... [2021-03-26 13:07:28,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 01:07:28" (1/1) ... [2021-03-26 13:07:28,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 01:07:28" (1/1) ... [2021-03-26 13:07:28,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 01:07:28" (1/1) ... [2021-03-26 13:07:28,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 01:07:28" (1/1) ... [2021-03-26 13:07:28,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 01:07:28" (1/1) ... [2021-03-26 13:07:28,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 01:07:28" (1/1) ... [2021-03-26 13:07:28,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 13:07:28,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 13:07:28,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 13:07:28,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 13:07:28,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 01:07:28" (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 [2021-03-26 13:07:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 13:07:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-26 13:07:28,207 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-26 13:07:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 13:07:28,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 13:07:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-26 13:07:28,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 13:07:28,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 13:07:28,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 13:07:28,210 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 13:07:28,475 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 13:07:28,476 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-26 13:07:28,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 01:07:28 BoogieIcfgContainer [2021-03-26 13:07:28,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 13:07:28,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 13:07:28,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 13:07:28,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 13:07:28,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 01:07:27" (1/3) ... [2021-03-26 13:07:28,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c7c94c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 01:07:28, skipping insertion in model container [2021-03-26 13:07:28,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 01:07:28" (2/3) ... [2021-03-26 13:07:28,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c7c94c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 01:07:28, skipping insertion in model container [2021-03-26 13:07:28,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 01:07:28" (3/3) ... [2021-03-26 13:07:28,483 INFO L111 eAbstractionObserver]: Analyzing ICFG forkMultipleTimes.c [2021-03-26 13:07:28,488 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 13:07:28,491 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 13:07:28,491 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 13:07:28,540 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,541 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,541 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,541 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,541 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,541 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,541 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,542 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,542 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,542 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,542 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,542 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,542 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,543 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,543 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,543 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,543 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,543 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,543 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,544 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,544 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,544 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,544 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,544 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,544 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,544 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,545 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,545 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,545 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,545 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,545 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,545 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,545 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,546 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,546 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,546 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,546 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,546 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,546 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,546 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,547 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,547 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,547 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,547 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,547 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,547 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,548 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,548 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,548 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,548 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,548 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,548 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,549 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,549 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,549 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,549 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,549 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,549 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,549 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,550 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,550 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,550 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,550 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,550 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,550 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,551 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,551 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,551 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,551 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,551 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,551 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,551 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,552 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,552 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,552 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,552 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,552 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,552 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,553 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,553 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,553 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,553 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,553 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,553 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,553 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,554 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,554 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,554 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,554 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,554 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,556 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,556 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,556 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,557 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,557 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,557 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,557 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,561 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,562 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,562 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,562 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,562 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,563 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,563 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,565 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,565 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,565 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,565 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,566 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,566 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,566 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:07:28,576 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-03-26 13:07:28,592 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 13:07:28,619 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:07:28,620 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:07:28,620 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:07:28,620 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:07:28,620 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:07:28,620 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:07:28,620 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:07:28,620 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:07:28,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 196 flow [2021-03-26 13:07:28,698 INFO L129 PetriNetUnfolder]: 5/85 cut-off events. [2021-03-26 13:07:28,698 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-26 13:07:28,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 85 events. 5/85 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. [2021-03-26 13:07:28,702 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 77 transitions, 196 flow [2021-03-26 13:07:28,707 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 61 transitions, 158 flow [2021-03-26 13:07:28,709 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:07:28,721 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 61 transitions, 158 flow [2021-03-26 13:07:28,725 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 61 transitions, 158 flow [2021-03-26 13:07:28,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 61 transitions, 158 flow [2021-03-26 13:07:28,759 INFO L129 PetriNetUnfolder]: 5/72 cut-off events. [2021-03-26 13:07:28,759 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-26 13:07:28,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 72 events. 5/72 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 110 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. [2021-03-26 13:07:28,764 INFO L142 LiptonReduction]: Number of co-enabled transitions 1008 [2021-03-26 13:07:30,172 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-03-26 13:07:30,360 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-03-26 13:07:30,438 INFO L154 LiptonReduction]: Checked pairs total: 1094 [2021-03-26 13:07:30,439 INFO L156 LiptonReduction]: Total number of compositions: 32 [2021-03-26 13:07:30,441 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1733 [2021-03-26 13:07:30,454 INFO L129 PetriNetUnfolder]: 5/35 cut-off events. [2021-03-26 13:07:30,454 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-26 13:07:30,454 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:07:30,455 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:07:30,455 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:07:30,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:07:30,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1125159806, now seen corresponding path program 1 times [2021-03-26 13:07:30,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:07:30,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849280191] [2021-03-26 13:07:30,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:07:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:07:30,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:07:30,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 13:07:30,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:07:30,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 13:07:30,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:07:30,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 13:07:30,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:07:30,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 13:07:30,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:07:30,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 13:07:30,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:07:30,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 13:07:30,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:07:30,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849280191] [2021-03-26 13:07:30,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:07:30,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 13:07:30,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235750437] [2021-03-26 13:07:30,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 13:07:30,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:07:30,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 13:07:30,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-26 13:07:30,845 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 109 [2021-03-26 13:07:30,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 94 flow. Second operand has 8 states, 8 states have (on average 57.375) internal successors, (459), 8 states have internal predecessors, (459), 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) [2021-03-26 13:07:30,848 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:07:30,848 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 109 [2021-03-26 13:07:30,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:07:31,181 INFO L129 PetriNetUnfolder]: 570/1054 cut-off events. [2021-03-26 13:07:31,181 INFO L130 PetriNetUnfolder]: For 116/116 co-relation queries the response was YES. [2021-03-26 13:07:31,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2122 conditions, 1054 events. 570/1054 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5284 event pairs, 141 based on Foata normal form. 1/1046 useless extension candidates. Maximal degree in co-relation 1780. Up to 355 conditions per place. [2021-03-26 13:07:31,196 INFO L132 encePairwiseOnDemand]: 99/109 looper letters, 55 selfloop transitions, 17 changer transitions 2/84 dead transitions. [2021-03-26 13:07:31,196 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 84 transitions, 364 flow [2021-03-26 13:07:31,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 13:07:31,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 13:07:31,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 570 transitions. [2021-03-26 13:07:31,218 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.581039755351682 [2021-03-26 13:07:31,219 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 570 transitions. [2021-03-26 13:07:31,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 570 transitions. [2021-03-26 13:07:31,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:07:31,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 570 transitions. [2021-03-26 13:07:31,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 63.333333333333336) internal successors, (570), 9 states have internal predecessors, (570), 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) [2021-03-26 13:07:31,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 109.0) internal successors, (1090), 10 states have internal predecessors, (1090), 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) [2021-03-26 13:07:31,239 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 109.0) internal successors, (1090), 10 states have internal predecessors, (1090), 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) [2021-03-26 13:07:31,241 INFO L185 Difference]: Start difference. First operand has 33 places, 29 transitions, 94 flow. Second operand 9 states and 570 transitions. [2021-03-26 13:07:31,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 84 transitions, 364 flow [2021-03-26 13:07:31,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 84 transitions, 332 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-26 13:07:31,251 INFO L241 Difference]: Finished difference. Result has 39 places, 44 transitions, 166 flow [2021-03-26 13:07:31,253 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=166, PETRI_PLACES=39, PETRI_TRANSITIONS=44} [2021-03-26 13:07:31,254 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 6 predicate places. [2021-03-26 13:07:31,254 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:07:31,254 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 44 transitions, 166 flow [2021-03-26 13:07:31,256 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 44 transitions, 166 flow [2021-03-26 13:07:31,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 44 transitions, 166 flow [2021-03-26 13:07:31,267 INFO L129 PetriNetUnfolder]: 39/168 cut-off events. [2021-03-26 13:07:31,267 INFO L130 PetriNetUnfolder]: For 8/11 co-relation queries the response was YES. [2021-03-26 13:07:31,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 168 events. 39/168 cut-off events. For 8/11 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 882 event pairs, 5 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 168. Up to 34 conditions per place. [2021-03-26 13:07:31,270 INFO L142 LiptonReduction]: Number of co-enabled transitions 426 [2021-03-26 13:07:31,425 INFO L154 LiptonReduction]: Checked pairs total: 469 [2021-03-26 13:07:31,426 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 13:07:31,426 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 172 [2021-03-26 13:07:31,428 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 41 transitions, 156 flow [2021-03-26 13:07:31,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 57.375) internal successors, (459), 8 states have internal predecessors, (459), 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) [2021-03-26 13:07:31,429 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:07:31,429 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:07:31,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 13:07:31,429 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:07:31,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:07:31,438 INFO L82 PathProgramCache]: Analyzing trace with hash 2094852966, now seen corresponding path program 1 times [2021-03-26 13:07:31,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:07:31,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508346861] [2021-03-26 13:07:31,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:07:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:07:31,489 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:07:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:07:31,512 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:07:31,533 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:07:31,534 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:07:31,534 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 13:07:31,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 01:07:31 BasicIcfg [2021-03-26 13:07:31,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 13:07:31,597 INFO L168 Benchmark]: Toolchain (without parser) took 3758.28 ms. Allocated memory was 255.9 MB in the beginning and 381.7 MB in the end (delta: 125.8 MB). Free memory was 234.7 MB in the beginning and 195.4 MB in the end (delta: 39.3 MB). Peak memory consumption was 164.9 MB. Max. memory is 16.0 GB. [2021-03-26 13:07:31,597 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 13:07:31,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.97 ms. Allocated memory was 255.9 MB in the beginning and 381.7 MB in the end (delta: 125.8 MB). Free memory was 234.7 MB in the beginning and 364.8 MB in the end (delta: -130.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-26 13:07:31,598 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.88 ms. Allocated memory is still 381.7 MB. Free memory was 364.8 MB in the beginning and 363.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 13:07:31,599 INFO L168 Benchmark]: Boogie Preprocessor took 29.43 ms. Allocated memory is still 381.7 MB. Free memory was 363.3 MB in the beginning and 362.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 13:07:31,599 INFO L168 Benchmark]: RCFGBuilder took 346.08 ms. Allocated memory is still 381.7 MB. Free memory was 362.3 MB in the beginning and 346.0 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 13:07:31,600 INFO L168 Benchmark]: TraceAbstraction took 3117.48 ms. Allocated memory is still 381.7 MB. Free memory was 346.0 MB in the beginning and 195.4 MB in the end (delta: 150.6 MB). Peak memory consumption was 152.2 MB. Max. memory is 16.0 GB. [2021-03-26 13:07:31,602 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 227.97 ms. Allocated memory was 255.9 MB in the beginning and 381.7 MB in the end (delta: 125.8 MB). Free memory was 234.7 MB in the beginning and 364.8 MB in the end (delta: -130.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 30.88 ms. Allocated memory is still 381.7 MB. Free memory was 364.8 MB in the beginning and 363.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.43 ms. Allocated memory is still 381.7 MB. Free memory was 363.3 MB in the beginning and 362.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 346.08 ms. Allocated memory is still 381.7 MB. Free memory was 362.3 MB in the beginning and 346.0 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3117.48 ms. Allocated memory is still 381.7 MB. Free memory was 346.0 MB in the beginning and 195.4 MB in the end (delta: 150.6 MB). Peak memory consumption was 152.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1714.0ms, 65 PlacesBefore, 33 PlacesAfterwards, 61 TransitionsBefore, 29 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 32 TotalNumberOfCompositions, 1094 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 600, positive: 568, positive conditional: 568, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 600, positive: 568, positive conditional: 0, positive unconditional: 568, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 600, positive: 568, positive conditional: 0, positive unconditional: 568, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 508, positive: 490, positive conditional: 0, positive unconditional: 490, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 508, positive: 486, positive conditional: 0, positive unconditional: 486, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 600, positive: 78, positive conditional: 0, positive unconditional: 78, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 508, unknown conditional: 0, unknown unconditional: 508] , Statistics on independence cache: Total cache size (in pairs): 508, Positive cache size: 490, Positive conditional cache size: 0, Positive unconditional cache size: 490, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 170.5ms, 39 PlacesBefore, 36 PlacesAfterwards, 44 TransitionsBefore, 41 TransitionsAfterwards, 426 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 469 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 241, positive: 218, positive conditional: 218, positive unconditional: 0, negative: 23, negative conditional: 23, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 241, positive: 218, positive conditional: 35, positive unconditional: 183, negative: 23, negative conditional: 17, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 241, positive: 218, positive conditional: 35, positive unconditional: 183, negative: 23, negative conditional: 17, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 56, positive: 53, positive conditional: 19, positive unconditional: 34, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 56, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 241, positive: 165, positive conditional: 16, positive unconditional: 149, negative: 20, negative conditional: 14, negative unconditional: 6, unknown: 56, unknown conditional: 22, unknown unconditional: 34] , Statistics on independence cache: Total cache size (in pairs): 564, Positive cache size: 543, Positive conditional cache size: 19, Positive unconditional cache size: 524, Negative cache size: 21, Negative conditional cache size: 3, Negative unconditional cache size: 18, Eliminated conditions: 0 - CounterExampleResult [Line: 37]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int counter = 0; [L23] 0 int val = 0; [L25] 0 pthread_t first_thread_id; [L26] 0 pthread_t second_thread_id; [L27] 0 pthread_t third_thread_id; [L29] FCALL, FORK 0 pthread_create(&first_thread_id, NULL, foo, &val) VAL [counter=0, n={5:0}] [L16] 1 int *x = (int *)n; [L17] 1 ++counter VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L30] FCALL, FORK 0 pthread_create(&second_thread_id, NULL, foo, &val) VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L16] 2 int *x = (int *)n; [L17] EXPR 2 ++counter VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L31] FCALL, FORK 0 pthread_create(&third_thread_id, NULL, foo, &val) VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L16] 3 int *x = (int *)n; [L17] 3 ++counter VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L33] 0 \read(first_thread_id) VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L17] 1 ++counter VAL [++counter=1, counter=2, n={5:0}, n={5:0}, x={5:0}] [L17] 2 *x = ++counter [L18] 2 return 0; [L17] 3 ++counter VAL [++counter=1, \result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] [L17] 1 *x = ++counter [L18] 1 return 0; [L33] FCALL, JOIN 1 pthread_join(first_thread_id, NULL) VAL [++counter=1, \result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] [L34] 0 \read(second_thread_id) VAL [++counter=1, \result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] [L34] FCALL, JOIN 2 pthread_join(second_thread_id, NULL) VAL [++counter=1, \result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] [L35] 0 \read(third_thread_id) VAL [++counter=1, \result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] [L17] 3 *x = ++counter VAL [++counter=1, \result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] [L18] 3 return 0; [L35] FCALL, JOIN 3 pthread_join(third_thread_id, NULL) VAL [\result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] [L37] FCALL 0 IdentifierExpression[val] [L37] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 2920.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 415.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1828.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 26 SDtfs, 38 SDslu, 71 SDs, 0 SdLazy, 198 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 110.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 77.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=1, InterpolantAutomatonStates: 9, 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: 11.2ms SsaConstructionTime, 108.4ms SatisfiabilityAnalysisTime, 213.5ms InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 272 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...