/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-NoLbe-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 05:06:11,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 05:06:11,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 05:06:11,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 05:06:11,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 05:06:11,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 05:06:11,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 05:06:11,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 05:06:11,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 05:06:11,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 05:06:11,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 05:06:11,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 05:06:11,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 05:06:11,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 05:06:11,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 05:06:11,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 05:06:11,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 05:06:11,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 05:06:11,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 05:06:11,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 05:06:11,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 05:06:11,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 05:06:11,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 05:06:11,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 05:06:11,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 05:06:11,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 05:06:11,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 05:06:11,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 05:06:11,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 05:06:11,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 05:06:11,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 05:06:11,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 05:06:11,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 05:06:11,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 05:06:11,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 05:06:11,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 05:06:11,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 05:06:11,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 05:06:11,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 05:06:11,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 05:06:11,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 05:06:11,688 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-NoLbe-Before.epf [2022-01-19 05:06:11,743 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 05:06:11,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 05:06:11,745 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 05:06:11,745 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 05:06:11,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 05:06:11,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 05:06:11,746 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 05:06:11,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 05:06:11,746 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 05:06:11,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 05:06:11,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 05:06:11,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 05:06:11,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 05:06:11,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 05:06:11,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 05:06:11,752 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 05:06:11,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 05:06:11,752 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 05:06:11,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 05:06:11,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 05:06:11,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 05:06:11,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 05:06:11,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 05:06:11,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:06:11,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 05:06:11,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 05:06:11,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 05:06:11,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 05:06:11,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 05:06:11,755 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 05:06:11,756 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 05:06:11,756 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 05:06:11,756 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 05:06:12,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 05:06:12,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 05:06:12,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 05:06:12,049 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 05:06:12,050 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 05:06:12,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2022-01-19 05:06:12,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2009020f2/c2f36917946a40f3adc115b004c7843f/FLAG642e70a7a [2022-01-19 05:06:12,650 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 05:06:12,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2022-01-19 05:06:12,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2009020f2/c2f36917946a40f3adc115b004c7843f/FLAG642e70a7a [2022-01-19 05:06:12,912 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2009020f2/c2f36917946a40f3adc115b004c7843f [2022-01-19 05:06:12,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 05:06:12,917 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 05:06:12,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 05:06:12,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 05:06:12,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 05:06:12,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:06:12" (1/1) ... [2022-01-19 05:06:12,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@344d1bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:06:12, skipping insertion in model container [2022-01-19 05:06:12,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:06:12" (1/1) ... [2022-01-19 05:06:12,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 05:06:12,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 05:06:13,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2022-01-19 05:06:13,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:06:13,556 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 05:06:13,611 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2022-01-19 05:06:13,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:06:13,703 INFO L208 MainTranslator]: Completed translation [2022-01-19 05:06:13,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:06:13 WrapperNode [2022-01-19 05:06:13,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 05:06:13,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 05:06:13,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 05:06:13,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 05:06:13,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:06:13" (1/1) ... [2022-01-19 05:06:13,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:06:13" (1/1) ... [2022-01-19 05:06:13,754 INFO L137 Inliner]: procedures = 480, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2022-01-19 05:06:13,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 05:06:13,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 05:06:13,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 05:06:13,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 05:06:13,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:06:13" (1/1) ... [2022-01-19 05:06:13,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:06:13" (1/1) ... [2022-01-19 05:06:13,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:06:13" (1/1) ... [2022-01-19 05:06:13,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:06:13" (1/1) ... [2022-01-19 05:06:13,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:06:13" (1/1) ... [2022-01-19 05:06:13,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:06:13" (1/1) ... [2022-01-19 05:06:13,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:06:13" (1/1) ... [2022-01-19 05:06:13,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 05:06:13,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 05:06:13,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 05:06:13,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 05:06:13,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:06:13" (1/1) ... [2022-01-19 05:06:13,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:06:13,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:06:13,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 05:06:13,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 05:06:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 05:06:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 05:06:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 05:06:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 05:06:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-19 05:06:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 05:06:13,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 05:06:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 05:06:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 05:06:13,887 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 05:06:13,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 05:06:13,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 05:06:13,888 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 05:06:14,127 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 05:06:14,128 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 05:06:14,278 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 05:06:14,285 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 05:06:14,285 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 05:06:14,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:06:14 BoogieIcfgContainer [2022-01-19 05:06:14,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 05:06:14,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 05:06:14,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 05:06:14,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 05:06:14,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 05:06:12" (1/3) ... [2022-01-19 05:06:14,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5824d699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:06:14, skipping insertion in model container [2022-01-19 05:06:14,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:06:13" (2/3) ... [2022-01-19 05:06:14,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5824d699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:06:14, skipping insertion in model container [2022-01-19 05:06:14,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:06:14" (3/3) ... [2022-01-19 05:06:14,299 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2022-01-19 05:06:14,304 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 05:06:14,304 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-19 05:06:14,304 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 05:06:14,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,352 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,352 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,353 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,353 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,353 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,353 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,354 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,354 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,354 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,354 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,354 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,355 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,355 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,355 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,355 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,355 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,355 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,356 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,374 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,374 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,374 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,374 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,374 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,374 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,374 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:06:14,378 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-19 05:06:14,430 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:06:14,435 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 05:06:14,435 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-19 05:06:14,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 113 transitions, 234 flow [2022-01-19 05:06:14,478 INFO L129 PetriNetUnfolder]: 5/127 cut-off events. [2022-01-19 05:06:14,478 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 05:06:14,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 127 events. 5/127 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 212 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 73. Up to 3 conditions per place. [2022-01-19 05:06:14,481 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 113 transitions, 234 flow [2022-01-19 05:06:14,484 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 100 transitions, 206 flow [2022-01-19 05:06:14,490 INFO L129 PetriNetUnfolder]: 1/37 cut-off events. [2022-01-19 05:06:14,490 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:06:14,491 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:06:14,491 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:06:14,492 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-19 05:06:14,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:06:14,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1512384952, now seen corresponding path program 1 times [2022-01-19 05:06:14,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:06:14,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221301322] [2022-01-19 05:06:14,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:06:14,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:06:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:06:14,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:06:14,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:06:14,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221301322] [2022-01-19 05:06:14,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221301322] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:06:14,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:06:14,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:06:14,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597250114] [2022-01-19 05:06:14,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:06:14,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:06:14,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:06:14,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:06:14,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:06:14,918 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 113 [2022-01-19 05:06:14,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 100 transitions, 206 flow. Second operand has 5 states, 5 states have (on average 83.2) internal successors, (416), 5 states have internal predecessors, (416), 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) [2022-01-19 05:06:14,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:06:14,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 113 [2022-01-19 05:06:14,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:06:14,990 INFO L129 PetriNetUnfolder]: 0/94 cut-off events. [2022-01-19 05:06:14,991 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-01-19 05:06:14,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 94 events. 0/94 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 1/92 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2022-01-19 05:06:14,992 INFO L132 encePairwiseOnDemand]: 102/113 looper letters, 11 selfloop transitions, 9 changer transitions 0/94 dead transitions. [2022-01-19 05:06:14,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 94 transitions, 234 flow [2022-01-19 05:06:14,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 05:06:14,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 05:06:15,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 596 transitions. [2022-01-19 05:06:15,006 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7534766118836915 [2022-01-19 05:06:15,007 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 596 transitions. [2022-01-19 05:06:15,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 596 transitions. [2022-01-19 05:06:15,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:06:15,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 596 transitions. [2022-01-19 05:06:15,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 85.14285714285714) internal successors, (596), 7 states have internal predecessors, (596), 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) [2022-01-19 05:06:15,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 113.0) internal successors, (904), 8 states have internal predecessors, (904), 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) [2022-01-19 05:06:15,022 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 113.0) internal successors, (904), 8 states have internal predecessors, (904), 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) [2022-01-19 05:06:15,023 INFO L186 Difference]: Start difference. First operand has 102 places, 100 transitions, 206 flow. Second operand 7 states and 596 transitions. [2022-01-19 05:06:15,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 94 transitions, 234 flow [2022-01-19 05:06:15,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 94 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 05:06:15,029 INFO L242 Difference]: Finished difference. Result has 102 places, 94 transitions, 208 flow [2022-01-19 05:06:15,031 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=208, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2022-01-19 05:06:15,034 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2022-01-19 05:06:15,034 INFO L470 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 208 flow [2022-01-19 05:06:15,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.2) internal successors, (416), 5 states have internal predecessors, (416), 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) [2022-01-19 05:06:15,034 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:06:15,035 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:06:15,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 05:06:15,035 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-19 05:06:15,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:06:15,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1771387403, now seen corresponding path program 1 times [2022-01-19 05:06:15,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:06:15,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653300273] [2022-01-19 05:06:15,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:06:15,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:06:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:06:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:06:15,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:06:15,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653300273] [2022-01-19 05:06:15,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653300273] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:06:15,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:06:15,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:06:15,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951840978] [2022-01-19 05:06:15,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:06:15,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:06:15,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:06:15,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:06:15,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:06:15,135 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 113 [2022-01-19 05:06:15,136 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 208 flow. Second operand has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 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) [2022-01-19 05:06:15,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:06:15,136 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 113 [2022-01-19 05:06:15,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:06:15,190 INFO L129 PetriNetUnfolder]: 0/92 cut-off events. [2022-01-19 05:06:15,190 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-19 05:06:15,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 92 events. 0/92 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2022-01-19 05:06:15,191 INFO L132 encePairwiseOnDemand]: 106/113 looper letters, 13 selfloop transitions, 2 changer transitions 7/92 dead transitions. [2022-01-19 05:06:15,191 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 92 transitions, 242 flow [2022-01-19 05:06:15,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 05:06:15,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 05:06:15,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 512 transitions. [2022-01-19 05:06:15,195 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7551622418879056 [2022-01-19 05:06:15,195 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 512 transitions. [2022-01-19 05:06:15,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 512 transitions. [2022-01-19 05:06:15,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:06:15,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 512 transitions. [2022-01-19 05:06:15,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 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) [2022-01-19 05:06:15,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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) [2022-01-19 05:06:15,200 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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) [2022-01-19 05:06:15,200 INFO L186 Difference]: Start difference. First operand has 102 places, 94 transitions, 208 flow. Second operand 6 states and 512 transitions. [2022-01-19 05:06:15,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 92 transitions, 242 flow [2022-01-19 05:06:15,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 92 transitions, 224 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 05:06:15,203 INFO L242 Difference]: Finished difference. Result has 99 places, 85 transitions, 176 flow [2022-01-19 05:06:15,203 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=176, PETRI_PLACES=99, PETRI_TRANSITIONS=85} [2022-01-19 05:06:15,204 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, -3 predicate places. [2022-01-19 05:06:15,204 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 85 transitions, 176 flow [2022-01-19 05:06:15,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 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) [2022-01-19 05:06:15,204 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:06:15,205 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:06:15,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 05:06:15,205 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-19 05:06:15,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:06:15,206 INFO L85 PathProgramCache]: Analyzing trace with hash 659390104, now seen corresponding path program 1 times [2022-01-19 05:06:15,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:06:15,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190416358] [2022-01-19 05:06:15,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:06:15,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:06:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:06:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:06:15,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:06:15,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190416358] [2022-01-19 05:06:15,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190416358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:06:15,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:06:15,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:06:15,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712547552] [2022-01-19 05:06:15,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:06:15,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:06:15,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:06:15,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:06:15,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:06:15,303 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-01-19 05:06:15,303 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 85 transitions, 176 flow. Second operand has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 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) [2022-01-19 05:06:15,303 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:06:15,304 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-01-19 05:06:15,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:06:15,345 INFO L129 PetriNetUnfolder]: 0/83 cut-off events. [2022-01-19 05:06:15,345 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 05:06:15,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 83 events. 0/83 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-01-19 05:06:15,346 INFO L132 encePairwiseOnDemand]: 108/113 looper letters, 8 selfloop transitions, 4 changer transitions 6/83 dead transitions. [2022-01-19 05:06:15,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 83 transitions, 196 flow [2022-01-19 05:06:15,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 05:06:15,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 05:06:15,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 553 transitions. [2022-01-19 05:06:15,348 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8156342182890856 [2022-01-19 05:06:15,348 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 553 transitions. [2022-01-19 05:06:15,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 553 transitions. [2022-01-19 05:06:15,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:06:15,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 553 transitions. [2022-01-19 05:06:15,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.16666666666667) internal successors, (553), 6 states have internal predecessors, (553), 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) [2022-01-19 05:06:15,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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) [2022-01-19 05:06:15,352 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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) [2022-01-19 05:06:15,352 INFO L186 Difference]: Start difference. First operand has 99 places, 85 transitions, 176 flow. Second operand 6 states and 553 transitions. [2022-01-19 05:06:15,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 83 transitions, 196 flow [2022-01-19 05:06:15,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 83 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 05:06:15,354 INFO L242 Difference]: Finished difference. Result has 90 places, 77 transitions, 164 flow [2022-01-19 05:06:15,354 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=164, PETRI_PLACES=90, PETRI_TRANSITIONS=77} [2022-01-19 05:06:15,355 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, -12 predicate places. [2022-01-19 05:06:15,355 INFO L470 AbstractCegarLoop]: Abstraction has has 90 places, 77 transitions, 164 flow [2022-01-19 05:06:15,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 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) [2022-01-19 05:06:15,356 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:06:15,356 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:06:15,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 05:06:15,356 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-19 05:06:15,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:06:15,357 INFO L85 PathProgramCache]: Analyzing trace with hash -534196150, now seen corresponding path program 1 times [2022-01-19 05:06:15,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:06:15,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837532642] [2022-01-19 05:06:15,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:06:15,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:06:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:06:15,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:06:15,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:06:15,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837532642] [2022-01-19 05:06:15,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837532642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:06:15,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:06:15,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:06:15,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295985733] [2022-01-19 05:06:15,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:06:15,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:06:15,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:06:15,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:06:15,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:06:15,447 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 113 [2022-01-19 05:06:15,448 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 77 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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) [2022-01-19 05:06:15,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:06:15,448 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 113 [2022-01-19 05:06:15,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:06:15,485 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2022-01-19 05:06:15,486 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-01-19 05:06:15,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 75 events. 0/75 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 24 event pairs, 0 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2022-01-19 05:06:15,486 INFO L132 encePairwiseOnDemand]: 107/113 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2022-01-19 05:06:15,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 75 transitions, 188 flow [2022-01-19 05:06:15,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 05:06:15,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 05:06:15,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2022-01-19 05:06:15,488 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7477876106194691 [2022-01-19 05:06:15,489 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 507 transitions. [2022-01-19 05:06:15,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 507 transitions. [2022-01-19 05:06:15,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:06:15,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 507 transitions. [2022-01-19 05:06:15,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 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) [2022-01-19 05:06:15,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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) [2022-01-19 05:06:15,492 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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) [2022-01-19 05:06:15,492 INFO L186 Difference]: Start difference. First operand has 90 places, 77 transitions, 164 flow. Second operand 6 states and 507 transitions. [2022-01-19 05:06:15,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 75 transitions, 188 flow [2022-01-19 05:06:15,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 75 transitions, 181 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 05:06:15,494 INFO L242 Difference]: Finished difference. Result has 83 places, 0 transitions, 0 flow [2022-01-19 05:06:15,494 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=83, PETRI_TRANSITIONS=0} [2022-01-19 05:06:15,495 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, -19 predicate places. [2022-01-19 05:06:15,495 INFO L470 AbstractCegarLoop]: Abstraction has has 83 places, 0 transitions, 0 flow [2022-01-19 05:06:15,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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) [2022-01-19 05:06:15,498 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-01-19 05:06:15,498 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-01-19 05:06:15,498 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-01-19 05:06:15,499 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-01-19 05:06:15,499 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 6 remaining) [2022-01-19 05:06:15,499 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-01-19 05:06:15,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 05:06:15,502 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-19 05:06:15,506 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 05:06:15,506 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 05:06:15,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 05:06:15 BasicIcfg [2022-01-19 05:06:15,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 05:06:15,510 INFO L158 Benchmark]: Toolchain (without parser) took 2594.37ms. Allocated memory is still 362.8MB. Free memory was 311.3MB in the beginning and 199.2MB in the end (delta: 112.1MB). Peak memory consumption was 117.3MB. Max. memory is 16.0GB. [2022-01-19 05:06:15,510 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 362.8MB. Free memory was 330.6MB in the beginning and 330.6MB in the end (delta: 83.1kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 05:06:15,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 785.23ms. Allocated memory is still 362.8MB. Free memory was 311.0MB in the beginning and 294.3MB in the end (delta: 16.7MB). Peak memory consumption was 20.7MB. Max. memory is 16.0GB. [2022-01-19 05:06:15,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.09ms. Allocated memory is still 362.8MB. Free memory was 294.3MB in the beginning and 291.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 05:06:15,511 INFO L158 Benchmark]: Boogie Preprocessor took 36.95ms. Allocated memory is still 362.8MB. Free memory was 291.2MB in the beginning and 288.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 05:06:15,512 INFO L158 Benchmark]: RCFGBuilder took 491.17ms. Allocated memory is still 362.8MB. Free memory was 288.7MB in the beginning and 330.3MB in the end (delta: -41.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-19 05:06:15,512 INFO L158 Benchmark]: TraceAbstraction took 1221.28ms. Allocated memory is still 362.8MB. Free memory was 330.3MB in the beginning and 199.2MB in the end (delta: 131.1MB). Peak memory consumption was 132.1MB. Max. memory is 16.0GB. [2022-01-19 05:06:15,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 362.8MB. Free memory was 330.6MB in the beginning and 330.6MB in the end (delta: 83.1kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 785.23ms. Allocated memory is still 362.8MB. Free memory was 311.0MB in the beginning and 294.3MB in the end (delta: 16.7MB). Peak memory consumption was 20.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 53.09ms. Allocated memory is still 362.8MB. Free memory was 294.3MB in the beginning and 291.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 36.95ms. Allocated memory is still 362.8MB. Free memory was 291.2MB in the beginning and 288.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 491.17ms. Allocated memory is still 362.8MB. Free memory was 288.7MB in the beginning and 330.3MB in the end (delta: -41.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 1221.28ms. Allocated memory is still 362.8MB. Free memory was 330.3MB in the beginning and 199.2MB in the end (delta: 131.1MB). Peak memory consumption was 132.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 126 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 47 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=1, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 202 ConstructedInterpolants, 0 QuantifiedInterpolants, 254 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-19 05:06:15,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...