./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_29-multiple-protecting2-vesal_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d25acf6 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_29-multiple-protecting2-vesal_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-3d25acf-m [2024-01-30 14:21:32,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:21:32,642 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:21:32,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:21:32,649 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:21:32,694 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:21:32,695 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:21:32,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:21:32,696 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:21:32,699 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:21:32,699 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:21:32,699 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:21:32,700 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:21:32,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:21:32,701 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:21:32,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:21:32,702 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:21:32,702 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:21:32,702 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:21:32,702 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:21:32,702 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:21:32,703 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:21:32,703 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:21:32,703 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:21:32,703 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:21:32,703 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:21:32,704 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:21:32,704 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:21:32,704 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:21:32,705 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:21:32,705 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:21:32,711 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:21:32,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:21:32,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:21:32,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:21:32,712 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:21:32,712 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:21:32,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:21:32,713 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:21:32,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:21:32,713 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:21:32,713 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:21:32,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:21:32,714 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:21:32,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:21:32,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:21:32,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:21:32,993 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:21:32,994 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:21:32,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_29-multiple-protecting2-vesal_true.yml/witness.yml [2024-01-30 14:21:33,063 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:21:33,063 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:21:33,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-01-30 14:21:34,044 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:21:34,259 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:21:34,260 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-01-30 14:21:34,271 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877f02a20/178f899e5f5645fb8e651d0ffc29d681/FLAGe93ad9991 [2024-01-30 14:21:34,288 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877f02a20/178f899e5f5645fb8e651d0ffc29d681 [2024-01-30 14:21:34,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:21:34,289 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:21:34,292 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:21:34,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:21:34,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:21:34,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:33" (1/2) ... [2024-01-30 14:21:34,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78d04cc9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:34, skipping insertion in model container [2024-01-30 14:21:34,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:33" (1/2) ... [2024-01-30 14:21:34,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f701642 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:34, skipping insertion in model container [2024-01-30 14:21:34,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:21:34" (2/2) ... [2024-01-30 14:21:34,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78d04cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34, skipping insertion in model container [2024-01-30 14:21:34,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:21:34" (2/2) ... [2024-01-30 14:21:34,301 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:21:34,361 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:21:34,362 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (0 <= g2) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:34,362 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] 0 <= g2 [2024-01-30 14:21:34,362 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] ((0 <= g2) && (0 <= g2)) && (0 <= g2) [2024-01-30 14:21:34,363 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] ((0 <= g2) && (g2 <= 2147483646)) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:34,363 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (0 <= g2) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:34,363 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] 0 <= g2 [2024-01-30 14:21:34,363 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] ((0 <= g2) && (g2 <= 2147483646)) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:34,363 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-30 14:21:34,363 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (1 <= g2) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:34,363 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] 0 <= g2 [2024-01-30 14:21:34,363 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (1 <= g2) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:34,363 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] 0 <= g2 [2024-01-30 14:21:34,364 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] g2 == 0 [2024-01-30 14:21:34,364 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-30 14:21:34,364 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] 0 <= g2 [2024-01-30 14:21:34,364 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (1 <= g2) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:34,364 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] 0 <= g2 [2024-01-30 14:21:34,364 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] 0 <= g2 [2024-01-30 14:21:34,432 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:21:34,599 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2024-01-30 14:21:34,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:21:34,742 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:21:34,752 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2024-01-30 14:21:34,752 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-30 14:21:34,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:21:34,856 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:21:34,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34 WrapperNode [2024-01-30 14:21:34,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:21:34,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:21:34,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:21:34,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:21:34,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34" (1/1) ... [2024-01-30 14:21:34,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34" (1/1) ... [2024-01-30 14:21:34,909 INFO L138 Inliner]: procedures = 163, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 96 [2024-01-30 14:21:34,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:21:34,910 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:21:34,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:21:34,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:21:34,920 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34" (1/1) ... [2024-01-30 14:21:34,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34" (1/1) ... [2024-01-30 14:21:34,922 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34" (1/1) ... [2024-01-30 14:21:34,932 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-01-30 14:21:34,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34" (1/1) ... [2024-01-30 14:21:34,933 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34" (1/1) ... [2024-01-30 14:21:34,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34" (1/1) ... [2024-01-30 14:21:34,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34" (1/1) ... [2024-01-30 14:21:34,943 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34" (1/1) ... [2024-01-30 14:21:34,943 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34" (1/1) ... [2024-01-30 14:21:34,945 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:21:34,946 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:21:34,946 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:21:34,946 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:21:34,947 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34" (1/1) ... [2024-01-30 14:21:34,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:21:34,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:21:34,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-30 14:21:34,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-30 14:21:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:21:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:21:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:21:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-30 14:21:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-30 14:21:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-01-30 14:21:35,011 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-01-30 14:21:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:21:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:21:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:21:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:21:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-30 14:21:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-30 14:21:35,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:21:35,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:21:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:21:35,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:21:35,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:21:35,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:21:35,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:21:35,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-30 14:21:35,018 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-30 14:21:35,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:21:35,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:21:35,020 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:21:35,117 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:21:35,119 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:21:35,356 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:21:35,357 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:21:35,451 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:21:35,453 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-30 14:21:35,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:21:35 BoogieIcfgContainer [2024-01-30 14:21:35,455 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:21:35,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:21:35,457 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:21:35,459 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:21:35,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:33" (1/4) ... [2024-01-30 14:21:35,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764b64a1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:21:35, skipping insertion in model container [2024-01-30 14:21:35,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:21:34" (2/4) ... [2024-01-30 14:21:35,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764b64a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:21:35, skipping insertion in model container [2024-01-30 14:21:35,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:34" (3/4) ... [2024-01-30 14:21:35,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764b64a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:21:35, skipping insertion in model container [2024-01-30 14:21:35,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:21:35" (4/4) ... [2024-01-30 14:21:35,463 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2024-01-30 14:21:35,476 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:21:35,476 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-01-30 14:21:35,476 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:21:35,527 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-30 14:21:35,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 84 transitions, 175 flow [2024-01-30 14:21:35,633 INFO L124 PetriNetUnfolderBase]: 3/83 cut-off events. [2024-01-30 14:21:35,633 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-30 14:21:35,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 83 events. 3/83 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 121 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2024-01-30 14:21:35,637 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 84 transitions, 175 flow [2024-01-30 14:21:35,641 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 81 transitions, 165 flow [2024-01-30 14:21:35,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:21:35,658 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=LoopHeads, 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;@241d1838, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:21:35,658 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-01-30 14:21:35,662 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:21:35,662 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:21:35,663 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:35,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:35,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:21:35,665 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-01-30 14:21:35,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:35,669 INFO L85 PathProgramCache]: Analyzing trace with hash 11217, now seen corresponding path program 1 times [2024-01-30 14:21:35,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:35,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275201644] [2024-01-30 14:21:35,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:35,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:35,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:35,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:35,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275201644] [2024-01-30 14:21:35,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275201644] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:35,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:35,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:21:35,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285738210] [2024-01-30 14:21:35,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:35,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:21:35,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:35,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:21:35,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:21:35,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 84 [2024-01-30 14:21:35,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2024-01-30 14:21:35,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:35,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 84 [2024-01-30 14:21:35,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:36,171 INFO L124 PetriNetUnfolderBase]: 232/782 cut-off events. [2024-01-30 14:21:36,172 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:36,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1288 conditions, 782 events. 232/782 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4719 event pairs, 88 based on Foata normal form. 48/746 useless extension candidates. Maximal degree in co-relation 1277. Up to 417 conditions per place. [2024-01-30 14:21:36,178 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 51 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2024-01-30 14:21:36,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 93 transitions, 295 flow [2024-01-30 14:21:36,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:21:36,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:21:36,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 190 transitions. [2024-01-30 14:21:36,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.753968253968254 [2024-01-30 14:21:36,192 INFO L175 Difference]: Start difference. First operand has 82 places, 81 transitions, 165 flow. Second operand 3 states and 190 transitions. [2024-01-30 14:21:36,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 93 transitions, 295 flow [2024-01-30 14:21:36,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 93 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:21:36,198 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 176 flow [2024-01-30 14:21:36,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=83, PETRI_TRANSITIONS=77} [2024-01-30 14:21:36,203 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 1 predicate places. [2024-01-30 14:21:36,203 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 176 flow [2024-01-30 14:21:36,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2024-01-30 14:21:36,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:36,203 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:21:36,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:21:36,204 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-01-30 14:21:36,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:36,204 INFO L85 PathProgramCache]: Analyzing trace with hash 334590622, now seen corresponding path program 1 times [2024-01-30 14:21:36,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:36,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548242288] [2024-01-30 14:21:36,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:36,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:36,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:36,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:36,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548242288] [2024-01-30 14:21:36,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548242288] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:36,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:36,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:36,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819386876] [2024-01-30 14:21:36,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:36,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:36,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:36,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:36,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:36,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-01-30 14:21:36,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 77 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-01-30 14:21:36,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:36,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-01-30 14:21:36,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:36,503 INFO L124 PetriNetUnfolderBase]: 160/665 cut-off events. [2024-01-30 14:21:36,503 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-01-30 14:21:36,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1104 conditions, 665 events. 160/665 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3900 event pairs, 126 based on Foata normal form. 17/631 useless extension candidates. Maximal degree in co-relation 1091. Up to 330 conditions per place. [2024-01-30 14:21:36,509 INFO L140 encePairwiseOnDemand]: 80/84 looper letters, 43 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-01-30 14:21:36,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 91 transitions, 294 flow [2024-01-30 14:21:36,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:36,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:36,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 239 transitions. [2024-01-30 14:21:36,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7113095238095238 [2024-01-30 14:21:36,515 INFO L175 Difference]: Start difference. First operand has 83 places, 77 transitions, 176 flow. Second operand 4 states and 239 transitions. [2024-01-30 14:21:36,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 91 transitions, 294 flow [2024-01-30 14:21:36,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 91 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:36,518 INFO L231 Difference]: Finished difference. Result has 82 places, 75 transitions, 172 flow [2024-01-30 14:21:36,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=82, PETRI_TRANSITIONS=75} [2024-01-30 14:21:36,519 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2024-01-30 14:21:36,519 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 75 transitions, 172 flow [2024-01-30 14:21:36,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-01-30 14:21:36,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:36,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:36,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:21:36,520 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-01-30 14:21:36,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:36,520 INFO L85 PathProgramCache]: Analyzing trace with hash -829476780, now seen corresponding path program 1 times [2024-01-30 14:21:36,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:36,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784088309] [2024-01-30 14:21:36,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:36,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:36,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:36,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:36,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784088309] [2024-01-30 14:21:36,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784088309] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:36,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:36,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:21:36,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885474841] [2024-01-30 14:21:36,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:36,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:36,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:36,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:36,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:36,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 84 [2024-01-30 14:21:36,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 75 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-01-30 14:21:36,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:36,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 84 [2024-01-30 14:21:36,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:36,811 INFO L124 PetriNetUnfolderBase]: 372/988 cut-off events. [2024-01-30 14:21:36,811 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2024-01-30 14:21:36,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1908 conditions, 988 events. 372/988 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5767 event pairs, 100 based on Foata normal form. 0/932 useless extension candidates. Maximal degree in co-relation 1895. Up to 605 conditions per place. [2024-01-30 14:21:36,816 INFO L140 encePairwiseOnDemand]: 79/84 looper letters, 73 selfloop transitions, 3 changer transitions 0/105 dead transitions. [2024-01-30 14:21:36,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 105 transitions, 384 flow [2024-01-30 14:21:36,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:36,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:36,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 198 transitions. [2024-01-30 14:21:36,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5892857142857143 [2024-01-30 14:21:36,817 INFO L175 Difference]: Start difference. First operand has 82 places, 75 transitions, 172 flow. Second operand 4 states and 198 transitions. [2024-01-30 14:21:36,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 105 transitions, 384 flow [2024-01-30 14:21:36,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 105 transitions, 381 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:36,821 INFO L231 Difference]: Finished difference. Result has 81 places, 73 transitions, 171 flow [2024-01-30 14:21:36,821 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=171, PETRI_PLACES=81, PETRI_TRANSITIONS=73} [2024-01-30 14:21:36,822 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -1 predicate places. [2024-01-30 14:21:36,823 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 73 transitions, 171 flow [2024-01-30 14:21:36,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-01-30 14:21:36,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:36,823 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:36,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:21:36,824 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-01-30 14:21:36,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:36,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1130233598, now seen corresponding path program 1 times [2024-01-30 14:21:36,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:36,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474104789] [2024-01-30 14:21:36,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:36,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:36,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:36,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:36,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474104789] [2024-01-30 14:21:36,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474104789] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:36,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:36,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:36,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565103583] [2024-01-30 14:21:36,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:36,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:36,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:36,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:36,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:36,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 84 [2024-01-30 14:21:36,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 73 transitions, 171 flow. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-01-30 14:21:36,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:36,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 84 [2024-01-30 14:21:36,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:37,035 INFO L124 PetriNetUnfolderBase]: 350/931 cut-off events. [2024-01-30 14:21:37,036 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES. [2024-01-30 14:21:37,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1734 conditions, 931 events. 350/931 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5015 event pairs, 294 based on Foata normal form. 76/970 useless extension candidates. Maximal degree in co-relation 1721. Up to 626 conditions per place. [2024-01-30 14:21:37,040 INFO L140 encePairwiseOnDemand]: 69/84 looper letters, 49 selfloop transitions, 7 changer transitions 0/78 dead transitions. [2024-01-30 14:21:37,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 78 transitions, 282 flow [2024-01-30 14:21:37,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:37,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:37,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 180 transitions. [2024-01-30 14:21:37,041 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2024-01-30 14:21:37,041 INFO L175 Difference]: Start difference. First operand has 81 places, 73 transitions, 171 flow. Second operand 4 states and 180 transitions. [2024-01-30 14:21:37,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 78 transitions, 282 flow [2024-01-30 14:21:37,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 78 transitions, 271 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-30 14:21:37,043 INFO L231 Difference]: Finished difference. Result has 71 places, 64 transitions, 145 flow [2024-01-30 14:21:37,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=145, PETRI_PLACES=71, PETRI_TRANSITIONS=64} [2024-01-30 14:21:37,044 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -11 predicate places. [2024-01-30 14:21:37,044 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 64 transitions, 145 flow [2024-01-30 14:21:37,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-01-30 14:21:37,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:37,044 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:37,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:21:37,045 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-01-30 14:21:37,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:37,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1730891913, now seen corresponding path program 1 times [2024-01-30 14:21:37,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:37,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822288444] [2024-01-30 14:21:37,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:37,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:37,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:37,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:37,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822288444] [2024-01-30 14:21:37,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822288444] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:37,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:37,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:37,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521774523] [2024-01-30 14:21:37,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:37,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:21:37,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:37,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:21:37,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:21:37,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 84 [2024-01-30 14:21:37,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 64 transitions, 145 flow. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-01-30 14:21:37,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:37,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 84 [2024-01-30 14:21:37,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:37,315 INFO L124 PetriNetUnfolderBase]: 288/751 cut-off events. [2024-01-30 14:21:37,315 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-01-30 14:21:37,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1467 conditions, 751 events. 288/751 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4070 event pairs, 16 based on Foata normal form. 0/715 useless extension candidates. Maximal degree in co-relation 1455. Up to 265 conditions per place. [2024-01-30 14:21:37,318 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 81 selfloop transitions, 4 changer transitions 0/109 dead transitions. [2024-01-30 14:21:37,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 109 transitions, 429 flow [2024-01-30 14:21:37,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:21:37,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:21:37,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 223 transitions. [2024-01-30 14:21:37,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.530952380952381 [2024-01-30 14:21:37,320 INFO L175 Difference]: Start difference. First operand has 71 places, 64 transitions, 145 flow. Second operand 5 states and 223 transitions. [2024-01-30 14:21:37,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 109 transitions, 429 flow [2024-01-30 14:21:37,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 109 transitions, 391 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-30 14:21:37,322 INFO L231 Difference]: Finished difference. Result has 69 places, 61 transitions, 133 flow [2024-01-30 14:21:37,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=133, PETRI_PLACES=69, PETRI_TRANSITIONS=61} [2024-01-30 14:21:37,325 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -13 predicate places. [2024-01-30 14:21:37,325 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 61 transitions, 133 flow [2024-01-30 14:21:37,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-01-30 14:21:37,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:37,325 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:37,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:21:37,325 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-01-30 14:21:37,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:37,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1752087337, now seen corresponding path program 1 times [2024-01-30 14:21:37,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:37,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224340024] [2024-01-30 14:21:37,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:37,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:37,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:37,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:37,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224340024] [2024-01-30 14:21:37,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224340024] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:37,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:37,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:37,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660889426] [2024-01-30 14:21:37,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:37,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:37,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:37,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:37,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:37,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-01-30 14:21:37,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 61 transitions, 133 flow. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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) [2024-01-30 14:21:37,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:37,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-01-30 14:21:37,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:37,562 INFO L124 PetriNetUnfolderBase]: 192/656 cut-off events. [2024-01-30 14:21:37,563 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-01-30 14:21:37,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 656 events. 192/656 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3680 event pairs, 42 based on Foata normal form. 0/592 useless extension candidates. Maximal degree in co-relation 1114. Up to 244 conditions per place. [2024-01-30 14:21:37,565 INFO L140 encePairwiseOnDemand]: 74/84 looper letters, 48 selfloop transitions, 15 changer transitions 0/91 dead transitions. [2024-01-30 14:21:37,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 91 transitions, 323 flow [2024-01-30 14:21:37,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:21:37,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:21:37,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 255 transitions. [2024-01-30 14:21:37,567 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2024-01-30 14:21:37,567 INFO L175 Difference]: Start difference. First operand has 69 places, 61 transitions, 133 flow. Second operand 5 states and 255 transitions. [2024-01-30 14:21:37,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 91 transitions, 323 flow [2024-01-30 14:21:37,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 91 transitions, 311 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-30 14:21:37,569 INFO L231 Difference]: Finished difference. Result has 73 places, 69 transitions, 209 flow [2024-01-30 14:21:37,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=209, PETRI_PLACES=73, PETRI_TRANSITIONS=69} [2024-01-30 14:21:37,571 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -9 predicate places. [2024-01-30 14:21:37,571 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 69 transitions, 209 flow [2024-01-30 14:21:37,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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) [2024-01-30 14:21:37,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:37,572 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:37,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:21:37,572 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-01-30 14:21:37,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:37,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1435853000, now seen corresponding path program 1 times [2024-01-30 14:21:37,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:37,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249135711] [2024-01-30 14:21:37,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:37,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:37,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:37,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:37,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249135711] [2024-01-30 14:21:37,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249135711] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:37,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:37,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:21:37,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258548165] [2024-01-30 14:21:37,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:37,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-30 14:21:37,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:37,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-30 14:21:37,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-01-30 14:21:37,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 84 [2024-01-30 14:21:37,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 69 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 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) [2024-01-30 14:21:37,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:37,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 84 [2024-01-30 14:21:37,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:37,904 INFO L124 PetriNetUnfolderBase]: 267/721 cut-off events. [2024-01-30 14:21:37,905 INFO L125 PetriNetUnfolderBase]: For 290/301 co-relation queries the response was YES. [2024-01-30 14:21:37,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1562 conditions, 721 events. 267/721 cut-off events. For 290/301 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3852 event pairs, 20 based on Foata normal form. 0/718 useless extension candidates. Maximal degree in co-relation 1546. Up to 342 conditions per place. [2024-01-30 14:21:37,907 INFO L140 encePairwiseOnDemand]: 78/84 looper letters, 52 selfloop transitions, 5 changer transitions 21/99 dead transitions. [2024-01-30 14:21:37,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 99 transitions, 453 flow [2024-01-30 14:21:37,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:21:37,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:21:37,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 204 transitions. [2024-01-30 14:21:37,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4857142857142857 [2024-01-30 14:21:37,909 INFO L175 Difference]: Start difference. First operand has 73 places, 69 transitions, 209 flow. Second operand 5 states and 204 transitions. [2024-01-30 14:21:37,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 99 transitions, 453 flow [2024-01-30 14:21:37,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 99 transitions, 453 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-30 14:21:37,911 INFO L231 Difference]: Finished difference. Result has 75 places, 56 transitions, 181 flow [2024-01-30 14:21:37,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=181, PETRI_PLACES=75, PETRI_TRANSITIONS=56} [2024-01-30 14:21:37,912 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -7 predicate places. [2024-01-30 14:21:37,912 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 56 transitions, 181 flow [2024-01-30 14:21:37,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 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) [2024-01-30 14:21:37,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:37,913 INFO L208 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] [2024-01-30 14:21:37,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-30 14:21:37,913 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-01-30 14:21:37,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:37,913 INFO L85 PathProgramCache]: Analyzing trace with hash -649343873, now seen corresponding path program 1 times [2024-01-30 14:21:37,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:37,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981555402] [2024-01-30 14:21:37,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:37,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:37,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:37,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981555402] [2024-01-30 14:21:37,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981555402] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:37,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:37,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:21:37,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457765802] [2024-01-30 14:21:37,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:37,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:21:37,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:37,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:21:37,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:21:38,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 84 [2024-01-30 14:21:38,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 56 transitions, 181 flow. Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 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) [2024-01-30 14:21:38,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:38,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 84 [2024-01-30 14:21:38,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:38,111 INFO L124 PetriNetUnfolderBase]: 160/484 cut-off events. [2024-01-30 14:21:38,111 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2024-01-30 14:21:38,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1053 conditions, 484 events. 160/484 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2408 event pairs, 52 based on Foata normal form. 21/496 useless extension candidates. Maximal degree in co-relation 1035. Up to 125 conditions per place. [2024-01-30 14:21:38,113 INFO L140 encePairwiseOnDemand]: 74/84 looper letters, 37 selfloop transitions, 12 changer transitions 12/80 dead transitions. [2024-01-30 14:21:38,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 80 transitions, 375 flow [2024-01-30 14:21:38,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-30 14:21:38,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-30 14:21:38,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 268 transitions. [2024-01-30 14:21:38,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5317460317460317 [2024-01-30 14:21:38,114 INFO L175 Difference]: Start difference. First operand has 75 places, 56 transitions, 181 flow. Second operand 6 states and 268 transitions. [2024-01-30 14:21:38,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 80 transitions, 375 flow [2024-01-30 14:21:38,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 80 transitions, 346 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-30 14:21:38,117 INFO L231 Difference]: Finished difference. Result has 66 places, 53 transitions, 194 flow [2024-01-30 14:21:38,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=194, PETRI_PLACES=66, PETRI_TRANSITIONS=53} [2024-01-30 14:21:38,118 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -16 predicate places. [2024-01-30 14:21:38,118 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 53 transitions, 194 flow [2024-01-30 14:21:38,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 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) [2024-01-30 14:21:38,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:38,118 INFO L208 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] [2024-01-30 14:21:38,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-30 14:21:38,119 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-01-30 14:21:38,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:38,119 INFO L85 PathProgramCache]: Analyzing trace with hash -274358887, now seen corresponding path program 1 times [2024-01-30 14:21:38,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:38,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605736283] [2024-01-30 14:21:38,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:38,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:38,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:38,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:38,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605736283] [2024-01-30 14:21:38,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605736283] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:38,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:38,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:21:38,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833319395] [2024-01-30 14:21:38,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:38,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:21:38,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:38,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:21:38,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:21:38,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 84 [2024-01-30 14:21:38,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 53 transitions, 194 flow. Second operand has 5 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 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) [2024-01-30 14:21:38,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:38,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 84 [2024-01-30 14:21:38,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:38,251 INFO L124 PetriNetUnfolderBase]: 37/194 cut-off events. [2024-01-30 14:21:38,251 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-01-30 14:21:38,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 194 events. 37/194 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 691 event pairs, 16 based on Foata normal form. 21/206 useless extension candidates. Maximal degree in co-relation 378. Up to 65 conditions per place. [2024-01-30 14:21:38,252 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 20 selfloop transitions, 6 changer transitions 12/58 dead transitions. [2024-01-30 14:21:38,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 264 flow [2024-01-30 14:21:38,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:38,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:38,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 237 transitions. [2024-01-30 14:21:38,254 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7053571428571429 [2024-01-30 14:21:38,254 INFO L175 Difference]: Start difference. First operand has 66 places, 53 transitions, 194 flow. Second operand 4 states and 237 transitions. [2024-01-30 14:21:38,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 264 flow [2024-01-30 14:21:38,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 58 transitions, 228 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-01-30 14:21:38,256 INFO L231 Difference]: Finished difference. Result has 61 places, 42 transitions, 140 flow [2024-01-30 14:21:38,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=61, PETRI_TRANSITIONS=42} [2024-01-30 14:21:38,257 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -21 predicate places. [2024-01-30 14:21:38,257 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 42 transitions, 140 flow [2024-01-30 14:21:38,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 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) [2024-01-30 14:21:38,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:38,257 INFO L208 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] [2024-01-30 14:21:38,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-30 14:21:38,258 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 27 more)] === [2024-01-30 14:21:38,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:38,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1170706806, now seen corresponding path program 1 times [2024-01-30 14:21:38,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:38,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511581930] [2024-01-30 14:21:38,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:38,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:38,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:38,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:38,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511581930] [2024-01-30 14:21:38,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511581930] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:38,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:38,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-30 14:21:38,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959942587] [2024-01-30 14:21:38,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:38,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-30 14:21:38,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:38,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-30 14:21:38,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-01-30 14:21:38,386 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 84 [2024-01-30 14:21:38,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 42 transitions, 140 flow. Second operand has 6 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 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) [2024-01-30 14:21:38,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:38,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 84 [2024-01-30 14:21:38,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:38,421 INFO L124 PetriNetUnfolderBase]: 15/103 cut-off events. [2024-01-30 14:21:38,421 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-01-30 14:21:38,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 103 events. 15/103 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 299 event pairs, 0 based on Foata normal form. 6/107 useless extension candidates. Maximal degree in co-relation 200. Up to 43 conditions per place. [2024-01-30 14:21:38,422 INFO L140 encePairwiseOnDemand]: 81/84 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2024-01-30 14:21:38,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 47 transitions, 222 flow [2024-01-30 14:21:38,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:38,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:38,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 231 transitions. [2024-01-30 14:21:38,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-01-30 14:21:38,423 INFO L175 Difference]: Start difference. First operand has 61 places, 42 transitions, 140 flow. Second operand 4 states and 231 transitions. [2024-01-30 14:21:38,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 47 transitions, 222 flow [2024-01-30 14:21:38,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 47 transitions, 204 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-30 14:21:38,424 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2024-01-30 14:21:38,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2024-01-30 14:21:38,425 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -34 predicate places. [2024-01-30 14:21:38,425 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2024-01-30 14:21:38,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 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) [2024-01-30 14:21:38,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 30 remaining) [2024-01-30 14:21:38,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 30 remaining) [2024-01-30 14:21:38,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 30 remaining) [2024-01-30 14:21:38,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 30 remaining) [2024-01-30 14:21:38,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 30 remaining) [2024-01-30 14:21:38,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 30 remaining) [2024-01-30 14:21:38,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 30 remaining) [2024-01-30 14:21:38,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 30 remaining) [2024-01-30 14:21:38,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 30 remaining) [2024-01-30 14:21:38,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 30 remaining) [2024-01-30 14:21:38,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 30 remaining) [2024-01-30 14:21:38,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (18 of 30 remaining) [2024-01-30 14:21:38,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 30 remaining) [2024-01-30 14:21:38,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (16 of 30 remaining) [2024-01-30 14:21:38,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 30 remaining) [2024-01-30 14:21:38,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 30 remaining) [2024-01-30 14:21:38,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 30 remaining) [2024-01-30 14:21:38,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (12 of 30 remaining) [2024-01-30 14:21:38,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 30 remaining) [2024-01-30 14:21:38,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 30 remaining) [2024-01-30 14:21:38,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 30 remaining) [2024-01-30 14:21:38,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 30 remaining) [2024-01-30 14:21:38,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 30 remaining) [2024-01-30 14:21:38,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 30 remaining) [2024-01-30 14:21:38,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 30 remaining) [2024-01-30 14:21:38,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 30 remaining) [2024-01-30 14:21:38,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 30 remaining) [2024-01-30 14:21:38,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 30 remaining) [2024-01-30 14:21:38,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 30 remaining) [2024-01-30 14:21:38,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 30 remaining) [2024-01-30 14:21:38,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-30 14:21:38,432 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:38,436 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:21:38,436 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:21:38,439 INFO L503 ceAbstractionStarter]: Automizer considered 17 witness invariants [2024-01-30 14:21:38,439 INFO L504 ceAbstractionStarter]: WitnessConsidered=17 [2024-01-30 14:21:38,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:21:38 BasicIcfg [2024-01-30 14:21:38,440 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:21:38,441 INFO L158 Benchmark]: Toolchain (without parser) took 4151.53ms. Allocated memory was 218.1MB in the beginning and 287.3MB in the end (delta: 69.2MB). Free memory was 184.4MB in the beginning and 233.9MB in the end (delta: -49.5MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2024-01-30 14:21:38,441 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 136.3MB. Free memory was 109.0MB in the beginning and 108.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:21:38,441 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 136.3MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:21:38,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.67ms. Allocated memory is still 218.1MB. Free memory was 184.2MB in the beginning and 166.0MB in the end (delta: 18.1MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2024-01-30 14:21:38,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.42ms. Allocated memory is still 218.1MB. Free memory was 166.0MB in the beginning and 163.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:38,442 INFO L158 Benchmark]: Boogie Preprocessor took 35.97ms. Allocated memory is still 218.1MB. Free memory was 163.9MB in the beginning and 161.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:38,442 INFO L158 Benchmark]: RCFGBuilder took 508.80ms. Allocated memory is still 218.1MB. Free memory was 161.8MB in the beginning and 123.0MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-01-30 14:21:38,442 INFO L158 Benchmark]: TraceAbstraction took 2983.61ms. Allocated memory was 218.1MB in the beginning and 287.3MB in the end (delta: 69.2MB). Free memory was 122.0MB in the beginning and 233.9MB in the end (delta: -111.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:21:38,443 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.14ms. Allocated memory is still 136.3MB. Free memory was 109.0MB in the beginning and 108.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.11ms. Allocated memory is still 136.3MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 566.67ms. Allocated memory is still 218.1MB. Free memory was 184.2MB in the beginning and 166.0MB in the end (delta: 18.1MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.42ms. Allocated memory is still 218.1MB. Free memory was 166.0MB in the beginning and 163.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.97ms. Allocated memory is still 218.1MB. Free memory was 163.9MB in the beginning and 161.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.80ms. Allocated memory is still 218.1MB. Free memory was 161.8MB in the beginning and 123.0MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2983.61ms. Allocated memory was 218.1MB in the beginning and 287.3MB in the end (delta: 69.2MB). Free memory was 122.0MB in the beginning and 233.9MB in the end (delta: -111.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 703]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 705]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 706]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 707]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 708]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 115 locations, 30 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: 2.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 969 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 708 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 153 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1441 IncrementalHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 153 mSolverCounterUnsat, 94 mSDtfsCounter, 1441 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=6, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 151 ConstructedInterpolants, 0 QuantifiedInterpolants, 887 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-30 14:21:38,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE