/usr/bin/java -Xmx8000000000 -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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 23:22:14,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 23:22:14,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 23:22:14,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-12-05 23:22:14,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 23:22:14,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 23:22:14,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 23:22:14,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 23:22:14,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 23:22:14,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 23:22:14,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 23:22:14,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 23:22:14,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 23:22:14,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 23:22:14,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 23:22:14,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 23:22:14,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 23:22:14,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 23:22:14,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 23:22:14,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 23:22:14,233 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-RepeatedSemanticLbe.epf [2022-12-05 23:22:14,273 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 23:22:14,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 23:22:14,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 23:22:14,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 23:22:14,275 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 23:22:14,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 23:22:14,276 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 23:22:14,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 23:22:14,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 23:22:14,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 23:22:14,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 23:22:14,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 23:22:14,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 23:22:14,289 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 23:22:14,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 23:22:14,289 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 23:22:14,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 23:22:14,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 23:22:14,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 23:22:14,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 23:22:14,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 23:22:14,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:22:14,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 23:22:14,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 23:22:14,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 23:22:14,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 23:22:14,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 23:22:14,291 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-05 23:22:14,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 23:22:14,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 23:22:14,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 23:22:14,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 23:22:14,615 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 23:22:14,615 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 23:22:14,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2022-12-05 23:22:15,752 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 23:22:16,111 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 23:22:16,112 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2022-12-05 23:22:16,140 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe1a38d5/86cfacd419f6485fb8905d3ce7ff53cf/FLAG2705e41bd [2022-12-05 23:22:16,325 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe1a38d5/86cfacd419f6485fb8905d3ce7ff53cf [2022-12-05 23:22:16,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 23:22:16,328 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 23:22:16,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 23:22:16,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 23:22:16,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 23:22:16,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:22:16" (1/1) ... [2022-12-05 23:22:16,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b76ddfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:16, skipping insertion in model container [2022-12-05 23:22:16,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:22:16" (1/1) ... [2022-12-05 23:22:16,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 23:22:16,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 23:22:16,862 WARN L237 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] [2022-12-05 23:22:16,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:22:16,904 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 23:22:16,944 WARN L237 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] [2022-12-05 23:22:16,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:22:17,097 INFO L208 MainTranslator]: Completed translation [2022-12-05 23:22:17,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:17 WrapperNode [2022-12-05 23:22:17,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 23:22:17,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 23:22:17,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 23:22:17,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 23:22:17,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:17" (1/1) ... [2022-12-05 23:22:17,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:17" (1/1) ... [2022-12-05 23:22:17,186 INFO L138 Inliner]: procedures = 480, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2022-12-05 23:22:17,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 23:22:17,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 23:22:17,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 23:22:17,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 23:22:17,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:17" (1/1) ... [2022-12-05 23:22:17,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:17" (1/1) ... [2022-12-05 23:22:17,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:17" (1/1) ... [2022-12-05 23:22:17,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:17" (1/1) ... [2022-12-05 23:22:17,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:17" (1/1) ... [2022-12-05 23:22:17,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:17" (1/1) ... [2022-12-05 23:22:17,223 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:17" (1/1) ... [2022-12-05 23:22:17,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:17" (1/1) ... [2022-12-05 23:22:17,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 23:22:17,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 23:22:17,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 23:22:17,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 23:22:17,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:17" (1/1) ... [2022-12-05 23:22:17,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:22:17,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 23:22:17,276 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) [2022-12-05 23:22:17,288 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 [2022-12-05 23:22:17,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 23:22:17,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 23:22:17,325 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 23:22:17,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 23:22:17,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-05 23:22:17,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 23:22:17,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 23:22:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 23:22:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 23:22:17,326 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 23:22:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 23:22:17,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 23:22:17,327 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 23:22:17,632 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 23:22:17,634 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 23:22:17,763 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 23:22:17,776 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 23:22:17,776 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 23:22:17,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:22:17 BoogieIcfgContainer [2022-12-05 23:22:17,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 23:22:17,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 23:22:17,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 23:22:17,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 23:22:17,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 11:22:16" (1/3) ... [2022-12-05 23:22:17,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c15d4e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:22:17, skipping insertion in model container [2022-12-05 23:22:17,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:22:17" (2/3) ... [2022-12-05 23:22:17,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c15d4e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:22:17, skipping insertion in model container [2022-12-05 23:22:17,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:22:17" (3/3) ... [2022-12-05 23:22:17,790 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2022-12-05 23:22:17,806 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 23:22:17,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-05 23:22:17,806 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 23:22:17,870 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-05 23:22:17,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 99 transitions, 206 flow [2022-12-05 23:22:17,960 INFO L130 PetriNetUnfolder]: 5/110 cut-off events. [2022-12-05 23:22:17,961 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 23:22:17,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 110 events. 5/110 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 188 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 62. Up to 3 conditions per place. [2022-12-05 23:22:17,965 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 99 transitions, 206 flow [2022-12-05 23:22:17,969 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 87 transitions, 180 flow [2022-12-05 23:22:17,971 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:22:17,996 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 87 transitions, 180 flow [2022-12-05 23:22:18,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 87 transitions, 180 flow [2022-12-05 23:22:18,025 INFO L130 PetriNetUnfolder]: 2/87 cut-off events. [2022-12-05 23:22:18,026 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 23:22:18,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 87 events. 2/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2022-12-05 23:22:18,029 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 87 transitions, 180 flow [2022-12-05 23:22:18,029 INFO L188 LiptonReduction]: Number of co-enabled transitions 450 [2022-12-05 23:22:18,606 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:18,608 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:18,611 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:18,612 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:20,444 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:20,445 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:20,447 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:20,447 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:20,797 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:20,798 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:20,800 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 23:22:20,800 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 23:22:21,383 INFO L203 LiptonReduction]: Total number of compositions: 77 [2022-12-05 23:22:21,396 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 23:22:21,402 INFO L357 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=REPEATED_LIPTON_PN, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@76adc2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 23:22:21,402 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-05 23:22:21,403 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-05 23:22:21,403 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:22:21,403 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:22:21,404 INFO L213 CegarLoopForPetriNet]: trace histogram [1] [2022-12-05 23:22:21,404 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-05 23:22:21,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:22:21,408 INFO L85 PathProgramCache]: Analyzing trace with hash 374, now seen corresponding path program 1 times [2022-12-05 23:22:21,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:22:21,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096181963] [2022-12-05 23:22:21,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:22:21,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:22:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:22:21,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:22:21,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:22:21,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096181963] [2022-12-05 23:22:21,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096181963] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:22:21,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:22:21,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-05 23:22:21,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090656003] [2022-12-05 23:22:21,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:22:21,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 23:22:21,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:22:21,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 23:22:21,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 23:22:21,684 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 12 [2022-12-05 23:22:21,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 30 flow. Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-05 23:22:21,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:22:21,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 12 [2022-12-05 23:22:21,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:22:21,707 INFO L130 PetriNetUnfolder]: 3/13 cut-off events. [2022-12-05 23:22:21,708 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 23:22:21,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 13 events. 3/13 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 20 event pairs, 3 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 20. Up to 14 conditions per place. [2022-12-05 23:22:21,709 INFO L137 encePairwiseOnDemand]: 7/12 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2022-12-05 23:22:21,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 34 flow [2022-12-05 23:22:21,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 23:22:21,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 23:22:21,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 12 transitions. [2022-12-05 23:22:21,718 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-05 23:22:21,719 INFO L175 Difference]: Start difference. First operand has 16 places, 12 transitions, 30 flow. Second operand 2 states and 12 transitions. [2022-12-05 23:22:21,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 34 flow [2022-12-05 23:22:21,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 23:22:21,722 INFO L231 Difference]: Finished difference. Result has 10 places, 0 transitions, 0 flow [2022-12-05 23:22:21,723 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=12, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=10, PETRI_TRANSITIONS=0} [2022-12-05 23:22:21,726 INFO L294 CegarLoopForPetriNet]: 16 programPoint places, -6 predicate places. [2022-12-05 23:22:21,727 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:22:21,727 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 10 places, 0 transitions, 0 flow [2022-12-05 23:22:21,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-05 23:22:21,727 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-05 23:22:21,728 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:22:21,728 INFO L83 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. [2022-12-05 23:22:21,728 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-05 23:22:21,728 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-05 23:22:21,728 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:22:21,730 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 3 [2022-12-05 23:22:21,730 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-05 23:22:21,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-05 23:22:21,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-05 23:22:21,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-05 23:22:21,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-12-05 23:22:21,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-12-05 23:22:21,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-12-05 23:22:21,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-05 23:22:21,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 23:22:21,733 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-05 23:22:21,738 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 23:22:21,738 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 23:22:21,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 11:22:21 BasicIcfg [2022-12-05 23:22:21,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 23:22:21,742 INFO L158 Benchmark]: Toolchain (without parser) took 5413.82ms. Allocated memory was 215.0MB in the beginning and 262.1MB in the end (delta: 47.2MB). Free memory was 188.0MB in the beginning and 209.8MB in the end (delta: -21.8MB). Peak memory consumption was 27.0MB. Max. memory is 8.0GB. [2022-12-05 23:22:21,742 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 215.0MB. Free memory is still 192.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 23:22:21,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 768.39ms. Allocated memory was 215.0MB in the beginning and 262.1MB in the end (delta: 47.2MB). Free memory was 187.7MB in the beginning and 233.0MB in the end (delta: -45.3MB). Peak memory consumption was 60.4MB. Max. memory is 8.0GB. [2022-12-05 23:22:21,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.56ms. Allocated memory is still 262.1MB. Free memory was 233.0MB in the beginning and 229.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 23:22:21,743 INFO L158 Benchmark]: Boogie Preprocessor took 57.66ms. Allocated memory is still 262.1MB. Free memory was 229.8MB in the beginning and 227.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 23:22:21,744 INFO L158 Benchmark]: RCFGBuilder took 532.40ms. Allocated memory is still 262.1MB. Free memory was 227.2MB in the beginning and 207.3MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-05 23:22:21,744 INFO L158 Benchmark]: TraceAbstraction took 3961.27ms. Allocated memory is still 262.1MB. Free memory was 206.8MB in the beginning and 209.8MB in the end (delta: -3.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 23:22:21,746 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 215.0MB. Free memory is still 192.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 768.39ms. Allocated memory was 215.0MB in the beginning and 262.1MB in the end (delta: 47.2MB). Free memory was 187.7MB in the beginning and 233.0MB in the end (delta: -45.3MB). Peak memory consumption was 60.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 88.56ms. Allocated memory is still 262.1MB. Free memory was 233.0MB in the beginning and 229.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.66ms. Allocated memory is still 262.1MB. Free memory was 229.8MB in the beginning and 227.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 532.40ms. Allocated memory is still 262.1MB. Free memory was 227.2MB in the beginning and 207.3MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 3961.27ms. Allocated memory is still 262.1MB. Free memory was 206.8MB in the beginning and 209.8MB in the end (delta: -3.1MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 89 PlacesBefore, 16 PlacesAfterwards, 87 TransitionsBefore, 12 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 50 TrivialYvCompositions, 25 ConcurrentYvCompositions, 2 ChoiceCompositions, 77 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 339, independent: 339, independent conditional: 339, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 339, independent: 339, independent conditional: 0, independent unconditional: 339, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 339, independent: 339, independent conditional: 0, independent unconditional: 339, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 339, independent: 339, independent conditional: 0, independent unconditional: 339, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 251, independent: 251, independent conditional: 0, independent unconditional: 251, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 251, independent: 251, independent conditional: 0, independent unconditional: 251, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 339, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 251, unknown conditional: 0, unknown unconditional: 251] , Statistics on independence cache: Total cache size (in pairs): 591, Positive cache size: 591, Positive conditional cache size: 0, Positive unconditional cache size: 591, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - 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, 110 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: 3.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 23:22:21,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...