/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/08-abort-before-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 03:38:57,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 03:38:57,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 03:38:57,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 03:38:57,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 03:38:57,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 03:38:57,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 03:38:57,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 03:38:57,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 03:38:57,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 03:38:57,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 03:38:57,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 03:38:57,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 03:38:57,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 03:38:57,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 03:38:57,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 03:38:57,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 03:38:57,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 03:38:57,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 03:38:57,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 03:38:57,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 03:38:57,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 03:38:57,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 03:38:57,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 03:38:57,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 03:38:57,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 03:38:57,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 03:38:57,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 03:38:57,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 03:38:57,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 03:38:57,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 03:38:57,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 03:38:57,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 03:38:57,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 03:38:57,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 03:38:57,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 03:38:57,926 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 03:38:57,976 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 03:38:57,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 03:38:57,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 03:38:57,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 03:38:57,981 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 03:38:57,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 03:38:57,982 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 03:38:57,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 03:38:57,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 03:38:57,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 03:38:57,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 03:38:57,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 03:38:57,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 03:38:57,985 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 03:38:57,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 03:38:57,985 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 03:38:57,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 03:38:57,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 03:38:57,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 03:38:57,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 03:38:57,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 03:38:57,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:38:57,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 03:38:57,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 03:38:57,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 03:38:57,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 03:38:57,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 03:38:57,988 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 03:38:57,988 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 03:38:57,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 03:38:57,989 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 03:38:58,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 03:38:58,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 03:38:58,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 03:38:58,441 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 03:38:58,445 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 03:38:58,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/08-abort-before-end.c [2021-04-29 03:38:58,532 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5774690e3/d8b1270b8b0a4ed8b2d7316c50616e9a/FLAG42bdbb22b [2021-04-29 03:38:59,037 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 03:38:59,037 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/08-abort-before-end.c [2021-04-29 03:38:59,038 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-04-29 03:38:59,080 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5774690e3/d8b1270b8b0a4ed8b2d7316c50616e9a/FLAG42bdbb22b [2021-04-29 03:38:59,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5774690e3/d8b1270b8b0a4ed8b2d7316c50616e9a [2021-04-29 03:38:59,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 03:38:59,476 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 03:38:59,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 03:38:59,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 03:38:59,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 03:38:59,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:38:59" (1/1) ... [2021-04-29 03:38:59,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@418d874c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:59, skipping insertion in model container [2021-04-29 03:38:59,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:38:59" (1/1) ... [2021-04-29 03:38:59,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 03:38:59,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 03:38:59,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:38:59,741 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 03:38:59,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:38:59,772 INFO L208 MainTranslator]: Completed translation [2021-04-29 03:38:59,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:59 WrapperNode [2021-04-29 03:38:59,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 03:38:59,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 03:38:59,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 03:38:59,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 03:38:59,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:59" (1/1) ... [2021-04-29 03:38:59,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:59" (1/1) ... [2021-04-29 03:38:59,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 03:38:59,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 03:38:59,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 03:38:59,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 03:38:59,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:59" (1/1) ... [2021-04-29 03:38:59,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:59" (1/1) ... [2021-04-29 03:38:59,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:59" (1/1) ... [2021-04-29 03:38:59,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:59" (1/1) ... [2021-04-29 03:38:59,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:59" (1/1) ... [2021-04-29 03:38:59,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:59" (1/1) ... [2021-04-29 03:38:59,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:59" (1/1) ... [2021-04-29 03:38:59,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 03:38:59,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 03:38:59,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 03:38:59,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 03:38:59,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:38:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 03:38:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 03:38:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 03:38:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-04-29 03:38:59,925 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-04-29 03:38:59,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 03:38:59,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 03:38:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 03:38:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 03:38:59,929 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 03:39:00,157 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 03:39:00,157 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-04-29 03:39:00,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:39:00 BoogieIcfgContainer [2021-04-29 03:39:00,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 03:39:00,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 03:39:00,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 03:39:00,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 03:39:00,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 03:38:59" (1/3) ... [2021-04-29 03:39:00,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3824148b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:39:00, skipping insertion in model container [2021-04-29 03:39:00,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:59" (2/3) ... [2021-04-29 03:39:00,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3824148b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:39:00, skipping insertion in model container [2021-04-29 03:39:00,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:39:00" (3/3) ... [2021-04-29 03:39:00,169 INFO L111 eAbstractionObserver]: Analyzing ICFG 08-abort-before-end.c [2021-04-29 03:39:00,176 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 03:39:00,181 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 03:39:00,182 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 03:39:00,236 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,237 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,237 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,238 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,238 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,238 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,239 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,239 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,241 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,241 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,242 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,242 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,245 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,248 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,249 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,249 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:00,259 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:39:00,303 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:39:00,353 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:39:00,353 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:39:00,353 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:39:00,353 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:39:00,353 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:39:00,353 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:39:00,354 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:39:00,354 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:39:00,377 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 51 flow [2021-04-29 03:39:00,429 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-04-29 03:39:00,429 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:00,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-04-29 03:39:00,434 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 51 flow [2021-04-29 03:39:00,439 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 21 places, 17 transitions, 37 flow [2021-04-29 03:39:00,441 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:39:00,456 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 17 transitions, 37 flow [2021-04-29 03:39:00,461 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 17 transitions, 37 flow [2021-04-29 03:39:00,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 17 transitions, 37 flow [2021-04-29 03:39:00,469 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-04-29 03:39:00,469 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:00,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-04-29 03:39:00,471 INFO L146 LiptonReduction]: Number of co-enabled transitions 24 [2021-04-29 03:39:01,671 INFO L158 LiptonReduction]: Checked pairs total: 24 [2021-04-29 03:39:01,671 INFO L160 LiptonReduction]: Total number of compositions: 25 [2021-04-29 03:39:01,674 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1235 [2021-04-29 03:39:01,685 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-04-29 03:39:01,686 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:01,686 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:39:01,687 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-29 03:39:01,687 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:39:01,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:39:01,693 INFO L82 PathProgramCache]: Analyzing trace with hash 115428, now seen corresponding path program 1 times [2021-04-29 03:39:01,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:39:01,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139664544] [2021-04-29 03:39:01,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:39:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:39:01,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:39:01,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:39:01,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:39:01,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139664544] [2021-04-29 03:39:01,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:39:01,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:39:01,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698079858] [2021-04-29 03:39:01,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:39:01,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:39:01,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:39:01,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:39:01,886 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 48 [2021-04-29 03:39:01,888 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:39:01,888 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:39:01,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 48 [2021-04-29 03:39:01,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:39:01,922 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-04-29 03:39:01,922 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:01,923 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 59 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-04-29 03:39:01,924 INFO L132 encePairwiseOnDemand]: 38/48 looper letters, 1 selfloop transitions, 4 changer transitions 12/18 dead transitions. [2021-04-29 03:39:01,924 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 18 transitions, 59 flow [2021-04-29 03:39:01,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:39:01,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:39:01,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2021-04-29 03:39:01,938 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2021-04-29 03:39:01,938 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 92 transitions. [2021-04-29 03:39:01,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 92 transitions. [2021-04-29 03:39:01,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:39:01,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 92 transitions. [2021-04-29 03:39:01,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:39:01,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:39:01,951 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:39:01,953 INFO L185 Difference]: Start difference. First operand has 22 places, 18 transitions, 39 flow. Second operand 3 states and 92 transitions. [2021-04-29 03:39:01,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 18 transitions, 59 flow [2021-04-29 03:39:01,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 58 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 03:39:01,959 INFO L241 Difference]: Finished difference. Result has 24 places, 6 transitions, 28 flow [2021-04-29 03:39:01,961 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=28, PETRI_PLACES=24, PETRI_TRANSITIONS=6} [2021-04-29 03:39:01,962 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2021-04-29 03:39:01,962 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:39:01,963 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 6 transitions, 28 flow [2021-04-29 03:39:01,963 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 6 transitions, 28 flow [2021-04-29 03:39:01,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 12 places, 6 transitions, 28 flow [2021-04-29 03:39:01,966 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-04-29 03:39:01,967 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:01,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 0/6 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-04-29 03:39:01,967 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 03:39:01,968 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:39:01,968 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:39:01,969 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-04-29 03:39:01,970 INFO L480 AbstractCegarLoop]: Abstraction has has 12 places, 6 transitions, 28 flow [2021-04-29 03:39:01,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:39:01,971 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:39:01,971 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-29 03:39:01,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 03:39:01,972 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:39:01,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:39:01,972 INFO L82 PathProgramCache]: Analyzing trace with hash 3578283, now seen corresponding path program 1 times [2021-04-29 03:39:01,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:39:01,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694440577] [2021-04-29 03:39:01,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:39:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:39:01,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:39:01,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:39:01,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:39:01,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:39:01,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:39:02,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694440577] [2021-04-29 03:39:02,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:39:02,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 03:39:02,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853941437] [2021-04-29 03:39:02,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:39:02,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:39:02,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:39:02,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:39:02,004 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 48 [2021-04-29 03:39:02,004 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 6 transitions, 28 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:39:02,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:39:02,005 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 48 [2021-04-29 03:39:02,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:39:02,009 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:39:02,009 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 03:39:02,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10 conditions, 2 events. 0/2 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/3 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-04-29 03:39:02,010 INFO L132 encePairwiseOnDemand]: 44/48 looper letters, 0 selfloop transitions, 0 changer transitions 2/2 dead transitions. [2021-04-29 03:39:02,010 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 2 transitions, 11 flow [2021-04-29 03:39:02,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:39:02,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:39:02,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2021-04-29 03:39:02,012 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6319444444444444 [2021-04-29 03:39:02,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 91 transitions. [2021-04-29 03:39:02,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 91 transitions. [2021-04-29 03:39:02,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:39:02,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 91 transitions. [2021-04-29 03:39:02,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:39:02,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:39:02,016 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:39:02,016 INFO L185 Difference]: Start difference. First operand has 12 places, 6 transitions, 28 flow. Second operand 3 states and 91 transitions. [2021-04-29 03:39:02,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 2 transitions, 11 flow [2021-04-29 03:39:02,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 8 places, 2 transitions, 9 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 03:39:02,017 INFO L241 Difference]: Finished difference. Result has 8 places, 0 transitions, 0 flow [2021-04-29 03:39:02,018 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=7, PETRI_DIFFERENCE_MINUEND_PLACES=6, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=8, PETRI_TRANSITIONS=0} [2021-04-29 03:39:02,018 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, -14 predicate places. [2021-04-29 03:39:02,018 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:39:02,019 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 8 places, 0 transitions, 0 flow [2021-04-29 03:39:02,019 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 8 places, 0 transitions, 0 flow [2021-04-29 03:39:02,019 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 03:39:02,019 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 03:39:02,020 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:02,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 03:39:02,020 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 03:39:02,020 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:39:02,020 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:39:02,021 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-04-29 03:39:02,022 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 03:39:02,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:39:02,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 03:39:02,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 03:39:02 BasicIcfg [2021-04-29 03:39:02,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 03:39:02,029 INFO L168 Benchmark]: Toolchain (without parser) took 2598.73 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 276.0 MB in the beginning and 311.6 MB in the end (delta: -35.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:02,030 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:39:02,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.14 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 264.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:02,031 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.11 ms. Allocated memory is still 302.0 MB. Free memory was 264.2 MB in the beginning and 262.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:02,032 INFO L168 Benchmark]: Boogie Preprocessor took 19.13 ms. Allocated memory is still 302.0 MB. Free memory was 262.9 MB in the beginning and 262.1 MB in the end (delta: 880.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:39:02,033 INFO L168 Benchmark]: RCFGBuilder took 332.03 ms. Allocated memory is still 302.0 MB. Free memory was 261.9 MB in the beginning and 248.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:02,033 INFO L168 Benchmark]: TraceAbstraction took 1865.79 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 248.5 MB in the beginning and 311.6 MB in the end (delta: -63.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:39:02,037 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 293.14 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 264.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 33.11 ms. Allocated memory is still 302.0 MB. Free memory was 264.2 MB in the beginning and 262.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.13 ms. Allocated memory is still 302.0 MB. Free memory was 262.9 MB in the beginning and 262.1 MB in the end (delta: 880.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 332.03 ms. Allocated memory is still 302.0 MB. Free memory was 261.9 MB in the beginning and 248.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1865.79 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 248.5 MB in the beginning and 311.6 MB in the end (delta: -63.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1210.5ms, 21 PlacesBefore, 22 PlacesAfterwards, 17 TransitionsBefore, 18 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 25 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 17, Positive conditional cache size: 17, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.5ms, 24 PlacesBefore, 12 PlacesAfterwards, 6 TransitionsBefore, 6 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 17, Positive conditional cache size: 17, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5ms, 8 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 17, Positive conditional cache size: 17, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0 - PositiveResult [Line: 35]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1695.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 98.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1327.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.4ms SsaConstructionTime, 26.9ms SatisfiabilityAnalysisTime, 67.3ms InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...