/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/weaver/mult-dist.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 07:26:23,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 07:26:23,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 07:26:23,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 07:26:23,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 07:26:23,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 07:26:23,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 07:26:23,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 07:26:23,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 07:26:23,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 07:26:23,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 07:26:23,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 07:26:23,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 07:26:23,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 07:26:23,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 07:26:23,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 07:26:23,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 07:26:23,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 07:26:23,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 07:26:23,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 07:26:23,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 07:26:23,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 07:26:23,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 07:26:23,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 07:26:23,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 07:26:23,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 07:26:23,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 07:26:23,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 07:26:23,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 07:26:23,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 07:26:23,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 07:26:23,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 07:26:23,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 07:26:23,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 07:26:23,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 07:26:23,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 07:26:23,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 07:26:23,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 07:26:23,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 07:26:23,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 07:26:23,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 07:26:23,389 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 07:26:23,401 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 07:26:23,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 07:26:23,401 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 07:26:23,402 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 07:26:23,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 07:26:23,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 07:26:23,402 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 07:26:23,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 07:26:23,402 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 07:26:23,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 07:26:23,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 07:26:23,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 07:26:23,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 07:26:23,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 07:26:23,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 07:26:23,403 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 07:26:23,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 07:26:23,403 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 07:26:23,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 07:26:23,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 07:26:23,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 07:26:23,403 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 07:26:23,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 07:26:23,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 07:26:23,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 07:26:23,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 07:26:23,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 07:26:23,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 07:26:23,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 07:26:23,404 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 07:26:23,404 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 07:26:23,404 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 07:26:23,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 07:26:23,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 07:26:23,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 07:26:23,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 07:26:23,609 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 07:26:23,610 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 07:26:23,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/mult-dist.wvr.c [2022-01-19 07:26:23,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37d3aa8a1/ddbedffa3977430d9a87ec3a711fcec7/FLAGada72a9da [2022-01-19 07:26:24,023 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 07:26:24,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c [2022-01-19 07:26:24,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37d3aa8a1/ddbedffa3977430d9a87ec3a711fcec7/FLAGada72a9da [2022-01-19 07:26:24,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37d3aa8a1/ddbedffa3977430d9a87ec3a711fcec7 [2022-01-19 07:26:24,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 07:26:24,040 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 07:26:24,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 07:26:24,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 07:26:24,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 07:26:24,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 07:26:24" (1/1) ... [2022-01-19 07:26:24,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54f4a179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:26:24, skipping insertion in model container [2022-01-19 07:26:24,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 07:26:24" (1/1) ... [2022-01-19 07:26:24,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 07:26:24,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 07:26:24,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c[2116,2129] [2022-01-19 07:26:24,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 07:26:24,207 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 07:26:24,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c[2116,2129] [2022-01-19 07:26:24,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 07:26:24,228 INFO L208 MainTranslator]: Completed translation [2022-01-19 07:26:24,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:26:24 WrapperNode [2022-01-19 07:26:24,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 07:26:24,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 07:26:24,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 07:26:24,229 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 07:26:24,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:26:24" (1/1) ... [2022-01-19 07:26:24,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:26:24" (1/1) ... [2022-01-19 07:26:24,250 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-01-19 07:26:24,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 07:26:24,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 07:26:24,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 07:26:24,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 07:26:24,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:26:24" (1/1) ... [2022-01-19 07:26:24,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:26:24" (1/1) ... [2022-01-19 07:26:24,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:26:24" (1/1) ... [2022-01-19 07:26:24,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:26:24" (1/1) ... [2022-01-19 07:26:24,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:26:24" (1/1) ... [2022-01-19 07:26:24,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:26:24" (1/1) ... [2022-01-19 07:26:24,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:26:24" (1/1) ... [2022-01-19 07:26:24,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 07:26:24,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 07:26:24,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 07:26:24,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 07:26:24,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:26:24" (1/1) ... [2022-01-19 07:26:24,283 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 07:26:24,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:26:24,302 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 07:26:24,317 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 07:26:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 07:26:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 07:26:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 07:26:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 07:26:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 07:26:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 07:26:24,342 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 07:26:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 07:26:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 07:26:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 07:26:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 07:26:24,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 07:26:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 07:26:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 07:26:24,344 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 07:26:24,417 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 07:26:24,418 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 07:26:24,617 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 07:26:24,622 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 07:26:24,622 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-19 07:26:24,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 07:26:24 BoogieIcfgContainer [2022-01-19 07:26:24,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 07:26:24,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 07:26:24,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 07:26:24,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 07:26:24,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 07:26:24" (1/3) ... [2022-01-19 07:26:24,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d31c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 07:26:24, skipping insertion in model container [2022-01-19 07:26:24,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:26:24" (2/3) ... [2022-01-19 07:26:24,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d31c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 07:26:24, skipping insertion in model container [2022-01-19 07:26:24,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 07:26:24" (3/3) ... [2022-01-19 07:26:24,629 INFO L111 eAbstractionObserver]: Analyzing ICFG mult-dist.wvr.c [2022-01-19 07:26:24,632 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 07:26:24,632 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 07:26:24,632 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 07:26:24,660 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,660 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,660 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,661 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,661 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,661 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,662 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,662 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,662 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,662 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,679 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,679 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,680 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,680 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,680 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,680 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,680 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,680 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,681 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,681 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,681 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,681 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,681 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,682 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,682 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,683 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,683 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,683 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,683 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,683 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,684 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,684 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,684 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,684 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,684 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,684 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,685 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,685 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,685 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,685 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,685 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,685 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,686 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,686 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,686 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,687 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,687 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,687 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,687 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,688 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,688 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,688 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,688 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,688 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,688 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,688 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,689 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,689 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,689 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,689 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,691 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,691 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,691 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,692 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,693 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,693 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,693 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,693 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,694 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,694 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,694 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,694 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:26:24,698 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-19 07:26:24,745 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 07:26:24,758 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 07:26:24,758 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 07:26:24,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 107 transitions, 238 flow [2022-01-19 07:26:24,831 INFO L129 PetriNetUnfolder]: 7/104 cut-off events. [2022-01-19 07:26:24,831 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 07:26:24,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 104 events. 7/104 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2022-01-19 07:26:24,835 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 107 transitions, 238 flow [2022-01-19 07:26:24,838 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 93 transitions, 204 flow [2022-01-19 07:26:24,863 INFO L129 PetriNetUnfolder]: 7/92 cut-off events. [2022-01-19 07:26:24,864 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 07:26:24,864 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:26:24,864 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] [2022-01-19 07:26:24,865 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:26:24,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:26:24,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1219307936, now seen corresponding path program 1 times [2022-01-19 07:26:24,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:26:24,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100679554] [2022-01-19 07:26:24,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:26:24,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:26:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:26:25,283 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 07:26:25,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:26:25,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100679554] [2022-01-19 07:26:25,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100679554] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:26:25,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:26:25,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:26:25,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697519430] [2022-01-19 07:26:25,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:26:25,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:26:25,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:26:25,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:26:25,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:26:25,320 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 107 [2022-01-19 07:26:25,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 93 transitions, 204 flow. Second operand has 7 states, 7 states have (on average 86.85714285714286) internal successors, (608), 7 states have internal predecessors, (608), 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 07:26:25,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:26:25,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 107 [2022-01-19 07:26:25,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:26:25,503 INFO L129 PetriNetUnfolder]: 52/310 cut-off events. [2022-01-19 07:26:25,503 INFO L130 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2022-01-19 07:26:25,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 310 events. 52/310 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1182 event pairs, 9 based on Foata normal form. 56/340 useless extension candidates. Maximal degree in co-relation 182. Up to 49 conditions per place. [2022-01-19 07:26:25,509 INFO L132 encePairwiseOnDemand]: 93/107 looper letters, 35 selfloop transitions, 9 changer transitions 8/124 dead transitions. [2022-01-19 07:26:25,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 124 transitions, 406 flow [2022-01-19 07:26:25,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 07:26:25,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 07:26:25,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 919 transitions. [2022-01-19 07:26:25,525 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8588785046728972 [2022-01-19 07:26:25,525 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 919 transitions. [2022-01-19 07:26:25,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 919 transitions. [2022-01-19 07:26:25,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:26:25,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 919 transitions. [2022-01-19 07:26:25,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 91.9) internal successors, (919), 10 states have internal predecessors, (919), 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 07:26:25,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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 07:26:25,539 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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 07:26:25,540 INFO L186 Difference]: Start difference. First operand has 96 places, 93 transitions, 204 flow. Second operand 10 states and 919 transitions. [2022-01-19 07:26:25,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 124 transitions, 406 flow [2022-01-19 07:26:25,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 124 transitions, 370 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 07:26:25,547 INFO L242 Difference]: Finished difference. Result has 103 places, 94 transitions, 235 flow [2022-01-19 07:26:25,549 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=235, PETRI_PLACES=103, PETRI_TRANSITIONS=94} [2022-01-19 07:26:25,551 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 7 predicate places. [2022-01-19 07:26:25,552 INFO L470 AbstractCegarLoop]: Abstraction has has 103 places, 94 transitions, 235 flow [2022-01-19 07:26:25,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 86.85714285714286) internal successors, (608), 7 states have internal predecessors, (608), 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 07:26:25,552 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:26:25,552 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, 1] [2022-01-19 07:26:25,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 07:26:25,553 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:26:25,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:26:25,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1230493039, now seen corresponding path program 1 times [2022-01-19 07:26:25,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:26:25,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678326477] [2022-01-19 07:26:25,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:26:25,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:26:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:26:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:26:25,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:26:25,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678326477] [2022-01-19 07:26:25,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678326477] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 07:26:25,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719641586] [2022-01-19 07:26:25,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:26:25,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 07:26:25,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:26:25,823 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 07:26:25,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 07:26:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:26:25,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 11 conjunts are in the unsatisfiable core [2022-01-19 07:26:25,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 07:26:26,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:26:26,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 07:26:26,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:26:26,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719641586] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 07:26:26,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 07:26:26,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 7] total 14 [2022-01-19 07:26:26,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318881205] [2022-01-19 07:26:26,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:26:26,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 07:26:26,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:26:26,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 07:26:26,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-01-19 07:26:26,460 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2022-01-19 07:26:26,460 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 94 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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 07:26:26,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:26:26,461 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2022-01-19 07:26:26,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:26:26,885 INFO L129 PetriNetUnfolder]: 1118/2568 cut-off events. [2022-01-19 07:26:26,885 INFO L130 PetriNetUnfolder]: For 223/224 co-relation queries the response was YES. [2022-01-19 07:26:26,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4607 conditions, 2568 events. 1118/2568 cut-off events. For 223/224 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 20118 event pairs, 228 based on Foata normal form. 0/2051 useless extension candidates. Maximal degree in co-relation 4576. Up to 312 conditions per place. [2022-01-19 07:26:26,903 INFO L132 encePairwiseOnDemand]: 99/107 looper letters, 96 selfloop transitions, 20 changer transitions 0/188 dead transitions. [2022-01-19 07:26:26,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 188 transitions, 678 flow [2022-01-19 07:26:26,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 07:26:26,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 07:26:26,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 917 transitions. [2022-01-19 07:26:26,906 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8570093457943925 [2022-01-19 07:26:26,906 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 917 transitions. [2022-01-19 07:26:26,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 917 transitions. [2022-01-19 07:26:26,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:26:26,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 917 transitions. [2022-01-19 07:26:26,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 91.7) internal successors, (917), 10 states have internal predecessors, (917), 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 07:26:26,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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 07:26:26,910 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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 07:26:26,910 INFO L186 Difference]: Start difference. First operand has 103 places, 94 transitions, 235 flow. Second operand 10 states and 917 transitions. [2022-01-19 07:26:26,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 188 transitions, 678 flow [2022-01-19 07:26:26,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 188 transitions, 674 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-01-19 07:26:26,915 INFO L242 Difference]: Finished difference. Result has 113 places, 113 transitions, 375 flow [2022-01-19 07:26:26,915 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=375, PETRI_PLACES=113, PETRI_TRANSITIONS=113} [2022-01-19 07:26:26,916 INFO L334 CegarLoopForPetriNet]: 96 programPoint places, 17 predicate places. [2022-01-19 07:26:26,916 INFO L470 AbstractCegarLoop]: Abstraction has has 113 places, 113 transitions, 375 flow [2022-01-19 07:26:26,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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 07:26:26,916 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:26:26,916 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, 1] [2022-01-19 07:26:26,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-19 07:26:27,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 07:26:27,121 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 07:26:27,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:26:27,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1287872177, now seen corresponding path program 2 times [2022-01-19 07:26:27,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:26:27,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606091689] [2022-01-19 07:26:27,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:26:27,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:26:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:26:27,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:26:27,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:26:27,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606091689] [2022-01-19 07:26:27,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606091689] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 07:26:27,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185197525] [2022-01-19 07:26:27,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 07:26:27,342 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 07:26:27,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:26:27,346 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 07:26:27,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-19 07:26:27,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 07:26:27,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 07:26:27,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-19 07:26:27,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 07:26:27,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:26:27,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-01-19 07:40:02,942 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 07:40:02,942 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 07:40:03,964 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 [2022-01-19 07:40:03,965 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown