/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-collitem-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:19:38,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:19:38,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:19:38,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:19:38,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:19:38,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:19:38,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:19:38,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:19:38,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:19:38,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:19:38,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:19:38,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:19:38,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:19:38,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:19:38,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:19:38,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:19:38,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:19:38,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:19:38,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:19:38,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:19:38,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:19:38,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:19:38,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:19:38,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:19:38,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:19:38,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:19:38,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:19:38,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:19:38,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:19:38,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:19:38,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:19:38,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:19:38,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:19:38,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:19:38,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:19:38,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:19:38,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:19:38,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:19:38,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:19:38,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:19:38,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:19:38,426 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.epf [2022-12-11 19:19:38,451 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:19:38,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:19:38,453 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:19:38,453 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:19:38,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:19:38,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:19:38,454 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:19:38,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:19:38,454 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:19:38,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:19:38,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:19:38,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:19:38,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:19:38,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:19:38,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:19:38,456 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:19:38,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:19:38,456 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:19:38,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:19:38,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:19:38,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:19:38,460 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:19:38,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:19:38,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:19:38,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:19:38,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:19:38,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:19:38,462 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:19:38,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:19:38,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:19:38,462 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:19:38,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:19:38,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:19:38,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:19:38,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:19:38,700 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:19:38,700 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:19:38,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-subst.wvr.c [2022-12-11 19:19:39,658 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:19:39,869 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:19:39,870 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-subst.wvr.c [2022-12-11 19:19:39,876 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5a381c08/a181586bf18d4fcbb08b1f0358b1edbf/FLAG93dcf7777 [2022-12-11 19:19:39,889 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5a381c08/a181586bf18d4fcbb08b1f0358b1edbf [2022-12-11 19:19:39,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:19:39,892 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:19:39,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:19:39,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:19:39,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:19:39,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:19:39" (1/1) ... [2022-12-11 19:19:39,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@493d51cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:19:39, skipping insertion in model container [2022-12-11 19:19:39,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:19:39" (1/1) ... [2022-12-11 19:19:39,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:19:39,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:19:40,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:19:40,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:19:40,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:19:40,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:19:40,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:19:40,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:19:40,019 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-subst.wvr.c[3544,3557] [2022-12-11 19:19:40,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:19:40,029 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:19:40,037 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:19:40,039 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:19:40,039 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:19:40,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:19:40,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:19:40,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:19:40,046 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-subst.wvr.c[3544,3557] [2022-12-11 19:19:40,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:19:40,056 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:19:40,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:19:40 WrapperNode [2022-12-11 19:19:40,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:19:40,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:19:40,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:19:40,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:19:40,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:19:40" (1/1) ... [2022-12-11 19:19:40,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:19:40" (1/1) ... [2022-12-11 19:19:40,115 INFO L138 Inliner]: procedures = 23, calls = 46, calls flagged for inlining = 18, calls inlined = 40, statements flattened = 353 [2022-12-11 19:19:40,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:19:40,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:19:40,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:19:40,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:19:40,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:19:40" (1/1) ... [2022-12-11 19:19:40,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:19:40" (1/1) ... [2022-12-11 19:19:40,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:19:40" (1/1) ... [2022-12-11 19:19:40,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:19:40" (1/1) ... [2022-12-11 19:19:40,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:19:40" (1/1) ... [2022-12-11 19:19:40,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:19:40" (1/1) ... [2022-12-11 19:19:40,145 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:19:40" (1/1) ... [2022-12-11 19:19:40,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:19:40" (1/1) ... [2022-12-11 19:19:40,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:19:40,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:19:40,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:19:40,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:19:40,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:19:40" (1/1) ... [2022-12-11 19:19:40,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:19:40,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:19:40,196 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) [2022-12-11 19:19:40,202 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 [2022-12-11 19:19:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:19:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-11 19:19:40,227 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-11 19:19:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-11 19:19:40,227 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-11 19:19:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-11 19:19:40,227 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-11 19:19:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:19:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:19:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:19:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 19:19:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 19:19:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:19:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:19:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 19:19:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:19:40,229 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 19:19:40,359 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:19:40,360 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:19:40,693 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:19:41,165 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:19:41,166 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 19:19:41,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:19:41 BoogieIcfgContainer [2022-12-11 19:19:41,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:19:41,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:19:41,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:19:41,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:19:41,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:19:39" (1/3) ... [2022-12-11 19:19:41,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e08d7ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:19:41, skipping insertion in model container [2022-12-11 19:19:41,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:19:40" (2/3) ... [2022-12-11 19:19:41,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e08d7ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:19:41, skipping insertion in model container [2022-12-11 19:19:41,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:19:41" (3/3) ... [2022-12-11 19:19:41,174 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-subst.wvr.c [2022-12-11 19:19:41,186 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:19:41,186 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 19:19:41,186 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:19:41,253 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-11 19:19:41,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 126 transitions, 276 flow [2022-12-11 19:19:41,361 INFO L130 PetriNetUnfolder]: 2/123 cut-off events. [2022-12-11 19:19:41,362 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-11 19:19:41,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 123 events. 2/123 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-12-11 19:19:41,365 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 126 transitions, 276 flow [2022-12-11 19:19:41,369 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 113 transitions, 244 flow [2022-12-11 19:19:41,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:19:41,388 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=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@705ec60f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:19:41,388 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 19:19:41,418 INFO L130 PetriNetUnfolder]: 2/112 cut-off events. [2022-12-11 19:19:41,418 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-11 19:19:41,418 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:19:41,419 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:19:41,419 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:19:41,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:19:41,422 INFO L85 PathProgramCache]: Analyzing trace with hash -353202643, now seen corresponding path program 1 times [2022-12-11 19:19:41,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:19:41,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101919105] [2022-12-11 19:19:41,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:19:41,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:19:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:19:47,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:19:47,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:19:47,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101919105] [2022-12-11 19:19:47,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101919105] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:19:47,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:19:47,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-11 19:19:47,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356160696] [2022-12-11 19:19:47,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:19:47,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-11 19:19:47,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:19:47,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-11 19:19:47,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-11 19:19:47,999 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 126 [2022-12-11 19:19:48,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 113 transitions, 244 flow. Second operand has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 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) [2022-12-11 19:19:48,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:19:48,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 126 [2022-12-11 19:19:48,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:19:49,693 INFO L130 PetriNetUnfolder]: 14/210 cut-off events. [2022-12-11 19:19:49,694 INFO L131 PetriNetUnfolder]: For 49/56 co-relation queries the response was YES. [2022-12-11 19:19:49,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 210 events. 14/210 cut-off events. For 49/56 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 465 event pairs, 7 based on Foata normal form. 8/207 useless extension candidates. Maximal degree in co-relation 133. Up to 48 conditions per place. [2022-12-11 19:19:49,698 INFO L137 encePairwiseOnDemand]: 113/126 looper letters, 57 selfloop transitions, 2 changer transitions 17/141 dead transitions. [2022-12-11 19:19:49,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 141 transitions, 476 flow [2022-12-11 19:19:49,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:19:49,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:19:49,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1084 transitions. [2022-12-11 19:19:49,729 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6617826617826618 [2022-12-11 19:19:49,731 INFO L175 Difference]: Start difference. First operand has 121 places, 113 transitions, 244 flow. Second operand 13 states and 1084 transitions. [2022-12-11 19:19:49,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 141 transitions, 476 flow [2022-12-11 19:19:49,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 141 transitions, 448 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-11 19:19:49,739 INFO L231 Difference]: Finished difference. Result has 135 places, 110 transitions, 249 flow [2022-12-11 19:19:49,740 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=249, PETRI_PLACES=135, PETRI_TRANSITIONS=110} [2022-12-11 19:19:49,743 INFO L295 CegarLoopForPetriNet]: 121 programPoint places, 14 predicate places. [2022-12-11 19:19:49,743 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 110 transitions, 249 flow [2022-12-11 19:19:49,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 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) [2022-12-11 19:19:49,744 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:19:49,744 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:19:49,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:19:49,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:19:49,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:19:49,745 INFO L85 PathProgramCache]: Analyzing trace with hash 796270149, now seen corresponding path program 2 times [2022-12-11 19:19:49,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:19:49,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910997431] [2022-12-11 19:19:49,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:19:49,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:19:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:19:52,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:19:52,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:19:52,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910997431] [2022-12-11 19:19:52,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910997431] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:19:52,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:19:52,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-11 19:19:52,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574057974] [2022-12-11 19:19:52,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:19:52,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-11 19:19:52,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:19:52,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-11 19:19:52,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-11 19:19:52,625 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 126 [2022-12-11 19:19:52,626 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 110 transitions, 249 flow. Second operand has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 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) [2022-12-11 19:19:52,626 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:19:52,626 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 126 [2022-12-11 19:19:52,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:19:53,339 INFO L130 PetriNetUnfolder]: 13/241 cut-off events. [2022-12-11 19:19:53,340 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-12-11 19:19:53,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 241 events. 13/241 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 690 event pairs, 5 based on Foata normal form. 1/237 useless extension candidates. Maximal degree in co-relation 394. Up to 42 conditions per place. [2022-12-11 19:19:53,341 INFO L137 encePairwiseOnDemand]: 117/126 looper letters, 57 selfloop transitions, 3 changer transitions 12/137 dead transitions. [2022-12-11 19:19:53,341 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 137 transitions, 486 flow [2022-12-11 19:19:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:19:53,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:19:53,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 842 transitions. [2022-12-11 19:19:53,346 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6682539682539682 [2022-12-11 19:19:53,346 INFO L175 Difference]: Start difference. First operand has 135 places, 110 transitions, 249 flow. Second operand 10 states and 842 transitions. [2022-12-11 19:19:53,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 137 transitions, 486 flow [2022-12-11 19:19:53,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 137 transitions, 449 flow, removed 17 selfloop flow, removed 7 redundant places. [2022-12-11 19:19:53,351 INFO L231 Difference]: Finished difference. Result has 134 places, 111 transitions, 266 flow [2022-12-11 19:19:53,351 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=266, PETRI_PLACES=134, PETRI_TRANSITIONS=111} [2022-12-11 19:19:53,352 INFO L295 CegarLoopForPetriNet]: 121 programPoint places, 13 predicate places. [2022-12-11 19:19:53,352 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 111 transitions, 266 flow [2022-12-11 19:19:53,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 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) [2022-12-11 19:19:53,352 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:19:53,353 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:19:53,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:19:53,353 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:19:53,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:19:53,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1319234727, now seen corresponding path program 3 times [2022-12-11 19:19:53,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:19:53,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303062064] [2022-12-11 19:19:53,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:19:53,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:19:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:19:55,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:19:55,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:19:55,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303062064] [2022-12-11 19:19:55,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303062064] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:19:55,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:19:55,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-11 19:19:55,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126779331] [2022-12-11 19:19:55,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:19:55,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-11 19:19:55,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:19:55,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-11 19:19:55,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-11 19:19:55,880 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 126 [2022-12-11 19:19:55,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 111 transitions, 266 flow. Second operand has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 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) [2022-12-11 19:19:55,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:19:55,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 126 [2022-12-11 19:19:55,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:19:56,560 INFO L130 PetriNetUnfolder]: 11/213 cut-off events. [2022-12-11 19:19:56,560 INFO L131 PetriNetUnfolder]: For 92/100 co-relation queries the response was YES. [2022-12-11 19:19:56,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 213 events. 11/213 cut-off events. For 92/100 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 530 event pairs, 3 based on Foata normal form. 2/211 useless extension candidates. Maximal degree in co-relation 375. Up to 37 conditions per place. [2022-12-11 19:19:56,561 INFO L137 encePairwiseOnDemand]: 117/126 looper letters, 55 selfloop transitions, 3 changer transitions 13/136 dead transitions. [2022-12-11 19:19:56,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 136 transitions, 498 flow [2022-12-11 19:19:56,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:19:56,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:19:56,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 841 transitions. [2022-12-11 19:19:56,563 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6674603174603174 [2022-12-11 19:19:56,564 INFO L175 Difference]: Start difference. First operand has 134 places, 111 transitions, 266 flow. Second operand 10 states and 841 transitions. [2022-12-11 19:19:56,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 136 transitions, 498 flow [2022-12-11 19:19:56,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 136 transitions, 460 flow, removed 18 selfloop flow, removed 7 redundant places. [2022-12-11 19:19:56,566 INFO L231 Difference]: Finished difference. Result has 137 places, 111 transitions, 271 flow [2022-12-11 19:19:56,566 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=271, PETRI_PLACES=137, PETRI_TRANSITIONS=111} [2022-12-11 19:19:56,567 INFO L295 CegarLoopForPetriNet]: 121 programPoint places, 16 predicate places. [2022-12-11 19:19:56,567 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 111 transitions, 271 flow [2022-12-11 19:19:56,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 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) [2022-12-11 19:19:56,568 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:19:56,568 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:19:56,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:19:56,568 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:19:56,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:19:56,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1529474981, now seen corresponding path program 4 times [2022-12-11 19:19:56,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:19:56,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143934109] [2022-12-11 19:19:56,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:19:56,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:19:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:19:59,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:19:59,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:19:59,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143934109] [2022-12-11 19:19:59,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143934109] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:19:59,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:19:59,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-11 19:19:59,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172021538] [2022-12-11 19:19:59,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:19:59,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-11 19:19:59,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:19:59,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-11 19:19:59,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-11 19:19:59,901 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 126 [2022-12-11 19:19:59,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 111 transitions, 271 flow. Second operand has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 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) [2022-12-11 19:19:59,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:19:59,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 126 [2022-12-11 19:19:59,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:20:01,355 INFO L130 PetriNetUnfolder]: 8/178 cut-off events. [2022-12-11 19:20:01,355 INFO L131 PetriNetUnfolder]: For 95/101 co-relation queries the response was YES. [2022-12-11 19:20:01,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 178 events. 8/178 cut-off events. For 95/101 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 321 event pairs, 3 based on Foata normal form. 2/177 useless extension candidates. Maximal degree in co-relation 320. Up to 43 conditions per place. [2022-12-11 19:20:01,356 INFO L137 encePairwiseOnDemand]: 117/126 looper letters, 44 selfloop transitions, 2 changer transitions 17/128 dead transitions. [2022-12-11 19:20:01,357 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 128 transitions, 476 flow [2022-12-11 19:20:01,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:20:01,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:20:01,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 831 transitions. [2022-12-11 19:20:01,358 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6595238095238095 [2022-12-11 19:20:01,359 INFO L175 Difference]: Start difference. First operand has 137 places, 111 transitions, 271 flow. Second operand 10 states and 831 transitions. [2022-12-11 19:20:01,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 128 transitions, 476 flow [2022-12-11 19:20:01,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 128 transitions, 440 flow, removed 15 selfloop flow, removed 9 redundant places. [2022-12-11 19:20:01,361 INFO L231 Difference]: Finished difference. Result has 136 places, 109 transitions, 253 flow [2022-12-11 19:20:01,361 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=253, PETRI_PLACES=136, PETRI_TRANSITIONS=109} [2022-12-11 19:20:01,362 INFO L295 CegarLoopForPetriNet]: 121 programPoint places, 15 predicate places. [2022-12-11 19:20:01,362 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 109 transitions, 253 flow [2022-12-11 19:20:01,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 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) [2022-12-11 19:20:01,363 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:20:01,363 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:20:01,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 19:20:01,363 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:20:01,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:20:01,363 INFO L85 PathProgramCache]: Analyzing trace with hash 156049739, now seen corresponding path program 5 times [2022-12-11 19:20:01,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:20:01,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2966039] [2022-12-11 19:20:01,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:20:01,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:20:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:20:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:20:04,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:20:04,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2966039] [2022-12-11 19:20:04,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2966039] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:20:04,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:20:04,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-11 19:20:04,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574371830] [2022-12-11 19:20:04,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:20:04,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-11 19:20:04,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:20:04,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-11 19:20:04,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-11 19:20:04,484 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 126 [2022-12-11 19:20:04,485 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 109 transitions, 253 flow. Second operand has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 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) [2022-12-11 19:20:04,485 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:20:04,485 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 126 [2022-12-11 19:20:04,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:20:05,810 INFO L130 PetriNetUnfolder]: 1/138 cut-off events. [2022-12-11 19:20:05,811 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2022-12-11 19:20:05,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 138 events. 1/138 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 112 event pairs, 0 based on Foata normal form. 1/139 useless extension candidates. Maximal degree in co-relation 227. Up to 32 conditions per place. [2022-12-11 19:20:05,812 INFO L137 encePairwiseOnDemand]: 117/126 looper letters, 43 selfloop transitions, 1 changer transitions 13/122 dead transitions. [2022-12-11 19:20:05,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 122 transitions, 420 flow [2022-12-11 19:20:05,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:20:05,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:20:05,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2022-12-11 19:20:05,837 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2022-12-11 19:20:05,837 INFO L175 Difference]: Start difference. First operand has 136 places, 109 transitions, 253 flow. Second operand 10 states and 828 transitions. [2022-12-11 19:20:05,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 122 transitions, 420 flow [2022-12-11 19:20:05,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 122 transitions, 380 flow, removed 14 selfloop flow, removed 11 redundant places. [2022-12-11 19:20:05,840 INFO L231 Difference]: Finished difference. Result has 135 places, 109 transitions, 249 flow [2022-12-11 19:20:05,840 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=249, PETRI_PLACES=135, PETRI_TRANSITIONS=109} [2022-12-11 19:20:05,842 INFO L295 CegarLoopForPetriNet]: 121 programPoint places, 14 predicate places. [2022-12-11 19:20:05,842 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 109 transitions, 249 flow [2022-12-11 19:20:05,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 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) [2022-12-11 19:20:05,842 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:20:05,842 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:20:05,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 19:20:05,843 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 19:20:05,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:20:05,843 INFO L85 PathProgramCache]: Analyzing trace with hash 588441541, now seen corresponding path program 6 times [2022-12-11 19:20:05,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:20:05,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242403094] [2022-12-11 19:20:05,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:20:05,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:20:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:20:08,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:20:08,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:20:08,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242403094] [2022-12-11 19:20:08,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242403094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:20:08,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:20:08,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-11 19:20:08,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660488576] [2022-12-11 19:20:08,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:20:08,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-11 19:20:08,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:20:08,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-11 19:20:08,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-11 19:20:08,734 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 126 [2022-12-11 19:20:08,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 109 transitions, 249 flow. Second operand has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 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) [2022-12-11 19:20:08,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:20:08,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 126 [2022-12-11 19:20:08,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:20:09,563 INFO L130 PetriNetUnfolder]: 1/113 cut-off events. [2022-12-11 19:20:09,564 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-11 19:20:09,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 113 events. 1/113 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 43 event pairs, 1 based on Foata normal form. 1/113 useless extension candidates. Maximal degree in co-relation 180. Up to 34 conditions per place. [2022-12-11 19:20:09,564 INFO L137 encePairwiseOnDemand]: 117/126 looper letters, 0 selfloop transitions, 0 changer transitions 107/107 dead transitions. [2022-12-11 19:20:09,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 107 transitions, 335 flow [2022-12-11 19:20:09,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:20:09,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:20:09,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 815 transitions. [2022-12-11 19:20:09,566 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6468253968253969 [2022-12-11 19:20:09,566 INFO L175 Difference]: Start difference. First operand has 135 places, 109 transitions, 249 flow. Second operand 10 states and 815 transitions. [2022-12-11 19:20:09,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 107 transitions, 335 flow [2022-12-11 19:20:09,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 107 transitions, 321 flow, removed 6 selfloop flow, removed 7 redundant places. [2022-12-11 19:20:09,567 INFO L231 Difference]: Finished difference. Result has 127 places, 0 transitions, 0 flow [2022-12-11 19:20:09,567 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=127, PETRI_TRANSITIONS=0} [2022-12-11 19:20:09,568 INFO L295 CegarLoopForPetriNet]: 121 programPoint places, 6 predicate places. [2022-12-11 19:20:09,568 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 0 transitions, 0 flow [2022-12-11 19:20:09,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 81.4) internal successors, (814), 10 states have internal predecessors, (814), 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) [2022-12-11 19:20:09,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 19:20:09,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 19:20:09,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 19:20:09,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 19:20:09,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 19:20:09,571 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2022-12-11 19:20:09,573 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 19:20:09,573 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 19:20:09,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 07:20:09 BasicIcfg [2022-12-11 19:20:09,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 19:20:09,577 INFO L158 Benchmark]: Toolchain (without parser) took 29684.29ms. Allocated memory was 211.8MB in the beginning and 974.1MB in the end (delta: 762.3MB). Free memory was 187.0MB in the beginning and 719.0MB in the end (delta: -532.0MB). Peak memory consumption was 231.9MB. Max. memory is 8.0GB. [2022-12-11 19:20:09,577 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 211.8MB. Free memory was 188.2MB in the beginning and 188.1MB in the end (delta: 87.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:20:09,577 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.30ms. Allocated memory is still 211.8MB. Free memory was 186.5MB in the beginning and 174.4MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-11 19:20:09,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.32ms. Allocated memory is still 211.8MB. Free memory was 174.4MB in the beginning and 171.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-11 19:20:09,578 INFO L158 Benchmark]: Boogie Preprocessor took 44.43ms. Allocated memory is still 211.8MB. Free memory was 171.3MB in the beginning and 169.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 19:20:09,578 INFO L158 Benchmark]: RCFGBuilder took 1006.34ms. Allocated memory was 211.8MB in the beginning and 292.6MB in the end (delta: 80.7MB). Free memory was 169.2MB in the beginning and 240.7MB in the end (delta: -71.5MB). Peak memory consumption was 107.3MB. Max. memory is 8.0GB. [2022-12-11 19:20:09,578 INFO L158 Benchmark]: TraceAbstraction took 28407.03ms. Allocated memory was 292.6MB in the beginning and 974.1MB in the end (delta: 681.6MB). Free memory was 239.1MB in the beginning and 719.0MB in the end (delta: -479.9MB). Peak memory consumption was 202.2MB. Max. memory is 8.0GB. [2022-12-11 19:20:09,579 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 211.8MB. Free memory was 188.2MB in the beginning and 188.1MB in the end (delta: 87.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 163.30ms. Allocated memory is still 211.8MB. Free memory was 186.5MB in the beginning and 174.4MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.32ms. Allocated memory is still 211.8MB. Free memory was 174.4MB in the beginning and 171.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.43ms. Allocated memory is still 211.8MB. Free memory was 171.3MB in the beginning and 169.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1006.34ms. Allocated memory was 211.8MB in the beginning and 292.6MB in the end (delta: 80.7MB). Free memory was 169.2MB in the beginning and 240.7MB in the end (delta: -71.5MB). Peak memory consumption was 107.3MB. Max. memory is 8.0GB. * TraceAbstraction took 28407.03ms. Allocated memory was 292.6MB in the beginning and 974.1MB in the end (delta: 681.6MB). Free memory was 239.1MB in the beginning and 719.0MB in the end (delta: -479.9MB). Peak memory consumption was 202.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 101]: 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 7 procedures, 140 locations, 4 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: 28.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 298 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 298 mSDsluCounter, 1127 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 922 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1039 IncrementalHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 205 mSDtfsCounter, 1039 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=271occurred in iteration=3, InterpolantAutomatonStates: 63, 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, 1.1s SatisfiabilityAnalysisTime, 20.0s InterpolantComputationTime, 654 NumberOfCodeBlocks, 654 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 648 ConstructedInterpolants, 0 QuantifiedInterpolants, 10606 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-11 19:20:09,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...