./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.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/45_monabsex1_vs.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ab2e0ac4 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/pthread-ext/45_monabsex1_vs.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/45_monabsex1_vs.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-ab2e0ac-m [2024-01-29 14:12:43,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:12:43,285 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:12:43,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:12:43,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:12:43,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:12:43,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:12:43,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:12:43,307 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:12:43,310 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:12:43,311 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:12:43,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:12:43,311 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:12:43,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:12:43,313 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:12:43,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:12:43,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:12:43,313 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:12:43,314 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:12:43,314 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:12:43,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:12:43,315 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:12:43,315 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:12:43,315 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:12:43,316 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:12:43,316 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:12:43,316 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:12:43,316 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:12:43,317 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:12:43,317 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:12:43,318 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:12:43,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:12:43,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:12:43,318 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:12:43,318 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:12:43,319 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:12:43,319 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:12:43,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:12:43,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:12:43,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:12:43,319 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:12:43,320 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:12:43,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:12:43,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:12:43,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:12:43,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:12:43,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:12:43,562 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:12:43,563 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:12:43,563 INFO L431 ainManager$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/45_monabsex1_vs.yml/witness.yml [2024-01-29 14:12:43,680 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:12:43,681 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:12:43,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2024-01-29 14:12:44,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:12:44,865 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:12:44,865 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2024-01-29 14:12:44,877 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae2326605/6a37db4a988b4a84adbdd06b06767d13/FLAGe1b97bd77 [2024-01-29 14:12:44,891 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae2326605/6a37db4a988b4a84adbdd06b06767d13 [2024-01-29 14:12:44,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:12:44,892 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:12:44,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:12:44,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:12:44,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:12:44,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:12:43" (1/2) ... [2024-01-29 14:12:44,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6687a402 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:12:44, skipping insertion in model container [2024-01-29 14:12:44,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:12:43" (1/2) ... [2024-01-29 14:12:44,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5ff3f493 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:12:44, skipping insertion in model container [2024-01-29 14:12:44,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:12:44" (2/2) ... [2024-01-29 14:12:44,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6687a402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:44, skipping insertion in model container [2024-01-29 14:12:44,902 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:12:44" (2/2) ... [2024-01-29 14:12:44,904 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:12:44,944 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:12:44,945 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] l == 4 [2024-01-29 14:12:44,945 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] l == 4 [2024-01-29 14:12:44,945 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] 4 == l [2024-01-29 14:12:44,946 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] (unsigned long )arg == 0UL [2024-01-29 14:12:44,946 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] (unsigned long )arg == 0UL [2024-01-29 14:12:44,946 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] 4 == l [2024-01-29 14:12:44,947 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] s != 4 [2024-01-29 14:12:44,947 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] 4 == l [2024-01-29 14:12:44,947 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (unsigned long )arg == 0UL [2024-01-29 14:12:44,947 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] l == 4 [2024-01-29 14:12:44,947 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] s == 4 [2024-01-29 14:12:44,947 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] l == 4 [2024-01-29 14:12:44,947 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] (unsigned long )arg == 0UL [2024-01-29 14:12:44,948 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] 4 == l [2024-01-29 14:12:44,948 INFO L98 nessWitnessExtractor]: Location invariant before [L712-L712] l == 4 [2024-01-29 14:12:44,948 INFO L98 nessWitnessExtractor]: Location invariant before [L712-L712] 4 == l [2024-01-29 14:12:44,948 INFO L98 nessWitnessExtractor]: Location invariant before [L712-L712] (unsigned long )arg == 0UL [2024-01-29 14:12:44,948 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] s == 0 [2024-01-29 14:12:44,948 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] (unsigned long )arg == 0UL [2024-01-29 14:12:44,948 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] (unsigned long )arg == 0UL [2024-01-29 14:12:44,948 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] 4 == l [2024-01-29 14:12:44,949 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] l == 4 [2024-01-29 14:12:44,949 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] l == 4 [2024-01-29 14:12:44,949 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] 4 == l [2024-01-29 14:12:44,949 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] s != 4 [2024-01-29 14:12:44,949 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (unsigned long )arg == 0UL [2024-01-29 14:12:44,950 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] 4 == l [2024-01-29 14:12:44,950 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] l == 4 [2024-01-29 14:12:44,950 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] (unsigned long )arg == 0UL [2024-01-29 14:12:44,950 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] s == 4 [2024-01-29 14:12:44,950 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] (unsigned long )arg == 0UL [2024-01-29 14:12:44,950 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] l == 4 [2024-01-29 14:12:44,950 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] 4 == l [2024-01-29 14:12:44,950 INFO L98 nessWitnessExtractor]: Location invariant before [L704-L704] (unsigned long )arg == 0UL [2024-01-29 14:12:44,951 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] l == 4 [2024-01-29 14:12:44,951 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] (unsigned long )arg == 0UL [2024-01-29 14:12:44,951 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] 4 == l [2024-01-29 14:12:44,987 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:12:45,294 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i[30633,30646] [2024-01-29 14:12:45,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:12:45,312 INFO L202 MainTranslator]: Completed pre-run 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 [2024-01-29 14:12:45,355 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i[30633,30646] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 14:12:45,358 WARN L424 MainDispatcher]: Unable to annotate ; 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 [2024-01-29 14:12:45,381 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:12:45,424 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:12:45,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:45 WrapperNode [2024-01-29 14:12:45,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:12:45,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:12:45,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:12:45,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:12:45,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:45" (1/1) ... [2024-01-29 14:12:45,474 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:45" (1/1) ... [2024-01-29 14:12:45,486 INFO L138 Inliner]: procedures = 170, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2024-01-29 14:12:45,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:12:45,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:12:45,489 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:12:45,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:12:45,496 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:45" (1/1) ... [2024-01-29 14:12:45,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:45" (1/1) ... [2024-01-29 14:12:45,502 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:45" (1/1) ... [2024-01-29 14:12:45,515 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [2, 1]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-01-29 14:12:45,515 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:45" (1/1) ... [2024-01-29 14:12:45,516 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:45" (1/1) ... [2024-01-29 14:12:45,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:45" (1/1) ... [2024-01-29 14:12:45,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:45" (1/1) ... [2024-01-29 14:12:45,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:45" (1/1) ... [2024-01-29 14:12:45,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:45" (1/1) ... [2024-01-29 14:12:45,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:12:45,540 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:12:45,540 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:12:45,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:12:45,541 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:45" (1/1) ... [2024-01-29 14:12:45,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:12:45,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:12:45,563 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) [2024-01-29 14:12:45,582 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 [2024-01-29 14:12:45,604 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-29 14:12:45,604 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-29 14:12:45,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:12:45,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:12:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 14:12:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:12:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:12:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:12:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:12:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:12:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 14:12:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:12:45,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:12:45,607 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:12:45,730 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:12:45,732 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:12:45,890 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:12:45,890 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:12:46,036 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:12:46,036 INFO L320 CfgBuilder]: Removed 1 assume(true) statements. [2024-01-29 14:12:46,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:12:46 BoogieIcfgContainer [2024-01-29 14:12:46,037 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:12:46,039 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:12:46,039 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:12:46,042 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:12:46,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:12:43" (1/4) ... [2024-01-29 14:12:46,043 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3592eb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:12:46, skipping insertion in model container [2024-01-29 14:12:46,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:12:44" (2/4) ... [2024-01-29 14:12:46,043 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3592eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:12:46, skipping insertion in model container [2024-01-29 14:12:46,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:45" (3/4) ... [2024-01-29 14:12:46,044 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3592eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:12:46, skipping insertion in model container [2024-01-29 14:12:46,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:12:46" (4/4) ... [2024-01-29 14:12:46,048 INFO L112 eAbstractionObserver]: Analyzing ICFG 45_monabsex1_vs.i [2024-01-29 14:12:46,064 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:12:46,064 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2024-01-29 14:12:46,064 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:12:46,117 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 14:12:46,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 51 transitions, 106 flow [2024-01-29 14:12:46,179 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2024-01-29 14:12:46,180 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:12:46,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 0/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 105 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-29 14:12:46,181 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 51 transitions, 106 flow [2024-01-29 14:12:46,186 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 51 transitions, 106 flow [2024-01-29 14:12:46,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:12:46,207 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;@7bc5dde4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:12:46,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2024-01-29 14:12:46,211 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:12:46,211 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:12:46,212 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:12:46,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:46,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:12:46,213 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 59 more)] === [2024-01-29 14:12:46,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:46,218 INFO L85 PathProgramCache]: Analyzing trace with hash 10354, now seen corresponding path program 1 times [2024-01-29 14:12:46,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:46,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168280251] [2024-01-29 14:12:46,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:46,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:46,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:12:46,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:46,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168280251] [2024-01-29 14:12:46,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168280251] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:46,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:12:46,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:12:46,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415480865] [2024-01-29 14:12:46,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:46,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:12:46,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:46,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:12:46,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:12:46,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 51 [2024-01-29 14:12:46,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-01-29 14:12:46,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:46,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 51 [2024-01-29 14:12:46,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:46,439 INFO L124 PetriNetUnfolderBase]: 9/61 cut-off events. [2024-01-29 14:12:46,439 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:12:46,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 61 events. 9/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 140 event pairs, 9 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 83. Up to 32 conditions per place. [2024-01-29 14:12:46,442 INFO L140 encePairwiseOnDemand]: 33/51 looper letters, 11 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2024-01-29 14:12:46,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 29 transitions, 88 flow [2024-01-29 14:12:46,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:12:46,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:12:46,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-01-29 14:12:46,451 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6013071895424836 [2024-01-29 14:12:46,452 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 106 flow. Second operand 3 states and 92 transitions. [2024-01-29 14:12:46,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 29 transitions, 88 flow [2024-01-29 14:12:46,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 88 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 14:12:46,456 INFO L231 Difference]: Finished difference. Result has 34 places, 29 transitions, 66 flow [2024-01-29 14:12:46,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=34, PETRI_TRANSITIONS=29} [2024-01-29 14:12:46,461 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -20 predicate places. [2024-01-29 14:12:46,461 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 66 flow [2024-01-29 14:12:46,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-01-29 14:12:46,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:46,461 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-01-29 14:12:46,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:12:46,462 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 59 more)] === [2024-01-29 14:12:46,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:46,463 INFO L85 PathProgramCache]: Analyzing trace with hash 982245122, now seen corresponding path program 1 times [2024-01-29 14:12:46,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:46,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500388182] [2024-01-29 14:12:46,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:46,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:12:46,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:12:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:12:46,507 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:12:46,510 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:12:46,511 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (61 of 62 remaining) [2024-01-29 14:12:46,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 62 remaining) [2024-01-29 14:12:46,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 62 remaining) [2024-01-29 14:12:46,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 62 remaining) [2024-01-29 14:12:46,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 62 remaining) [2024-01-29 14:12:46,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 62 remaining) [2024-01-29 14:12:46,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 62 remaining) [2024-01-29 14:12:46,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 62 remaining) [2024-01-29 14:12:46,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 62 remaining) [2024-01-29 14:12:46,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 62 remaining) [2024-01-29 14:12:46,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 62 remaining) [2024-01-29 14:12:46,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 62 remaining) [2024-01-29 14:12:46,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 62 remaining) [2024-01-29 14:12:46,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 62 remaining) [2024-01-29 14:12:46,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 62 remaining) [2024-01-29 14:12:46,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 62 remaining) [2024-01-29 14:12:46,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 62 remaining) [2024-01-29 14:12:46,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 62 remaining) [2024-01-29 14:12:46,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 62 remaining) [2024-01-29 14:12:46,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 62 remaining) [2024-01-29 14:12:46,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 62 remaining) [2024-01-29 14:12:46,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 62 remaining) [2024-01-29 14:12:46,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 62 remaining) [2024-01-29 14:12:46,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONERROR_FUNCTION (38 of 62 remaining) [2024-01-29 14:12:46,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 62 remaining) [2024-01-29 14:12:46,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 62 remaining) [2024-01-29 14:12:46,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 62 remaining) [2024-01-29 14:12:46,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 62 remaining) [2024-01-29 14:12:46,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 62 remaining) [2024-01-29 14:12:46,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 62 remaining) [2024-01-29 14:12:46,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 62 remaining) [2024-01-29 14:12:46,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 62 remaining) [2024-01-29 14:12:46,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 62 remaining) [2024-01-29 14:12:46,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 62 remaining) [2024-01-29 14:12:46,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 62 remaining) [2024-01-29 14:12:46,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 62 remaining) [2024-01-29 14:12:46,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 62 remaining) [2024-01-29 14:12:46,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 62 remaining) [2024-01-29 14:12:46,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 62 remaining) [2024-01-29 14:12:46,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 62 remaining) [2024-01-29 14:12:46,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 62 remaining) [2024-01-29 14:12:46,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 62 remaining) [2024-01-29 14:12:46,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 62 remaining) [2024-01-29 14:12:46,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 62 remaining) [2024-01-29 14:12:46,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 62 remaining) [2024-01-29 14:12:46,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 62 remaining) [2024-01-29 14:12:46,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 62 remaining) [2024-01-29 14:12:46,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 62 remaining) [2024-01-29 14:12:46,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 62 remaining) [2024-01-29 14:12:46,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 62 remaining) [2024-01-29 14:12:46,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 62 remaining) [2024-01-29 14:12:46,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 62 remaining) [2024-01-29 14:12:46,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 62 remaining) [2024-01-29 14:12:46,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 62 remaining) [2024-01-29 14:12:46,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONERROR_FUNCTION (7 of 62 remaining) [2024-01-29 14:12:46,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 62 remaining) [2024-01-29 14:12:46,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 62 remaining) [2024-01-29 14:12:46,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 62 remaining) [2024-01-29 14:12:46,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 62 remaining) [2024-01-29 14:12:46,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 62 remaining) [2024-01-29 14:12:46,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 62 remaining) [2024-01-29 14:12:46,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 62 remaining) [2024-01-29 14:12:46,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:12:46,535 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-01-29 14:12:46,537 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-29 14:12:46,538 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-29 14:12:46,583 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 14:12:46,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 96 transitions, 202 flow [2024-01-29 14:12:46,614 INFO L124 PetriNetUnfolderBase]: 0/100 cut-off events. [2024-01-29 14:12:46,617 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 14:12:46,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 100 events. 0/100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 361 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2024-01-29 14:12:46,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 96 transitions, 202 flow [2024-01-29 14:12:46,620 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 96 transitions, 202 flow [2024-01-29 14:12:46,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:12:46,625 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;@7bc5dde4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:12:46,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2024-01-29 14:12:46,627 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:12:46,627 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:12:46,627 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:12:46,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:46,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:12:46,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 89 more)] === [2024-01-29 14:12:46,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:46,628 INFO L85 PathProgramCache]: Analyzing trace with hash 13426, now seen corresponding path program 1 times [2024-01-29 14:12:46,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:46,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233229344] [2024-01-29 14:12:46,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:46,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:46,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:12:46,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:46,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233229344] [2024-01-29 14:12:46,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233229344] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:46,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:12:46,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:12:46,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131554196] [2024-01-29 14:12:46,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:46,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:12:46,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:46,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:12:46,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:12:46,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 96 [2024-01-29 14:12:46,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 96 transitions, 202 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) [2024-01-29 14:12:46,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:46,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 96 [2024-01-29 14:12:46,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:46,774 INFO L124 PetriNetUnfolderBase]: 279/827 cut-off events. [2024-01-29 14:12:46,775 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-01-29 14:12:46,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1365 conditions, 827 events. 279/827 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5869 event pairs, 279 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 1092. Up to 502 conditions per place. [2024-01-29 14:12:46,785 INFO L140 encePairwiseOnDemand]: 64/96 looper letters, 21 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-01-29 14:12:46,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 54 transitions, 164 flow [2024-01-29 14:12:46,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:12:46,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:12:46,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2024-01-29 14:12:46,791 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-01-29 14:12:46,791 INFO L175 Difference]: Start difference. First operand has 101 places, 96 transitions, 202 flow. Second operand 3 states and 176 transitions. [2024-01-29 14:12:46,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 54 transitions, 164 flow [2024-01-29 14:12:46,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 54 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 14:12:46,795 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 122 flow [2024-01-29 14:12:46,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2024-01-29 14:12:46,796 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -40 predicate places. [2024-01-29 14:12:46,796 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 122 flow [2024-01-29 14:12:46,796 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) [2024-01-29 14:12:46,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:46,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:12:46,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:12:46,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 89 more)] === [2024-01-29 14:12:46,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:46,800 INFO L85 PathProgramCache]: Analyzing trace with hash -472665912, now seen corresponding path program 1 times [2024-01-29 14:12:46,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:46,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026056750] [2024-01-29 14:12:46,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:46,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:46,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:12:46,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:46,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026056750] [2024-01-29 14:12:46,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026056750] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:46,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:12:46,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:12:46,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108658198] [2024-01-29 14:12:46,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:46,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:12:46,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:46,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:12:46,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:12:46,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 96 [2024-01-29 14:12:46,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 54 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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) [2024-01-29 14:12:46,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:46,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 96 [2024-01-29 14:12:46,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:47,110 INFO L124 PetriNetUnfolderBase]: 249/727 cut-off events. [2024-01-29 14:12:47,111 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-01-29 14:12:47,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 727 events. 249/727 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4797 event pairs, 135 based on Foata normal form. 44/482 useless extension candidates. Maximal degree in co-relation 1202. Up to 416 conditions per place. [2024-01-29 14:12:47,116 INFO L140 encePairwiseOnDemand]: 88/96 looper letters, 32 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2024-01-29 14:12:47,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 60 transitions, 207 flow [2024-01-29 14:12:47,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:12:47,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:12:47,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 184 transitions. [2024-01-29 14:12:47,118 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2024-01-29 14:12:47,118 INFO L175 Difference]: Start difference. First operand has 61 places, 54 transitions, 122 flow. Second operand 4 states and 184 transitions. [2024-01-29 14:12:47,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 60 transitions, 207 flow [2024-01-29 14:12:47,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 60 transitions, 203 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:12:47,121 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 110 flow [2024-01-29 14:12:47,121 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2024-01-29 14:12:47,123 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -45 predicate places. [2024-01-29 14:12:47,123 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 110 flow [2024-01-29 14:12:47,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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) [2024-01-29 14:12:47,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:47,124 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1] [2024-01-29 14:12:47,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:12:47,124 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 89 more)] === [2024-01-29 14:12:47,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:47,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1032532623, now seen corresponding path program 1 times [2024-01-29 14:12:47,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:47,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339297082] [2024-01-29 14:12:47,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:47,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:12:47,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:12:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:12:47,171 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:12:47,171 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:12:47,172 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (91 of 92 remaining) [2024-01-29 14:12:47,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 92 remaining) [2024-01-29 14:12:47,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 92 remaining) [2024-01-29 14:12:47,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 92 remaining) [2024-01-29 14:12:47,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 92 remaining) [2024-01-29 14:12:47,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 92 remaining) [2024-01-29 14:12:47,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 92 remaining) [2024-01-29 14:12:47,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 92 remaining) [2024-01-29 14:12:47,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 92 remaining) [2024-01-29 14:12:47,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 92 remaining) [2024-01-29 14:12:47,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 92 remaining) [2024-01-29 14:12:47,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 92 remaining) [2024-01-29 14:12:47,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 92 remaining) [2024-01-29 14:12:47,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 92 remaining) [2024-01-29 14:12:47,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 92 remaining) [2024-01-29 14:12:47,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 92 remaining) [2024-01-29 14:12:47,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 92 remaining) [2024-01-29 14:12:47,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 92 remaining) [2024-01-29 14:12:47,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 92 remaining) [2024-01-29 14:12:47,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 92 remaining) [2024-01-29 14:12:47,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 92 remaining) [2024-01-29 14:12:47,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 92 remaining) [2024-01-29 14:12:47,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 92 remaining) [2024-01-29 14:12:47,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONERROR_FUNCTION (68 of 92 remaining) [2024-01-29 14:12:47,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 92 remaining) [2024-01-29 14:12:47,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 92 remaining) [2024-01-29 14:12:47,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 92 remaining) [2024-01-29 14:12:47,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 92 remaining) [2024-01-29 14:12:47,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 92 remaining) [2024-01-29 14:12:47,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 92 remaining) [2024-01-29 14:12:47,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 92 remaining) [2024-01-29 14:12:47,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 92 remaining) [2024-01-29 14:12:47,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 92 remaining) [2024-01-29 14:12:47,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 92 remaining) [2024-01-29 14:12:47,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 92 remaining) [2024-01-29 14:12:47,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 92 remaining) [2024-01-29 14:12:47,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 92 remaining) [2024-01-29 14:12:47,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 92 remaining) [2024-01-29 14:12:47,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 92 remaining) [2024-01-29 14:12:47,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 92 remaining) [2024-01-29 14:12:47,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 92 remaining) [2024-01-29 14:12:47,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 92 remaining) [2024-01-29 14:12:47,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 92 remaining) [2024-01-29 14:12:47,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 92 remaining) [2024-01-29 14:12:47,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 92 remaining) [2024-01-29 14:12:47,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 92 remaining) [2024-01-29 14:12:47,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 92 remaining) [2024-01-29 14:12:47,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 92 remaining) [2024-01-29 14:12:47,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 92 remaining) [2024-01-29 14:12:47,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 92 remaining) [2024-01-29 14:12:47,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 92 remaining) [2024-01-29 14:12:47,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 92 remaining) [2024-01-29 14:12:47,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 92 remaining) [2024-01-29 14:12:47,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 92 remaining) [2024-01-29 14:12:47,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONERROR_FUNCTION (37 of 92 remaining) [2024-01-29 14:12:47,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 92 remaining) [2024-01-29 14:12:47,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 92 remaining) [2024-01-29 14:12:47,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 92 remaining) [2024-01-29 14:12:47,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 92 remaining) [2024-01-29 14:12:47,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 92 remaining) [2024-01-29 14:12:47,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 92 remaining) [2024-01-29 14:12:47,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 92 remaining) [2024-01-29 14:12:47,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 92 remaining) [2024-01-29 14:12:47,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 92 remaining) [2024-01-29 14:12:47,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 92 remaining) [2024-01-29 14:12:47,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 92 remaining) [2024-01-29 14:12:47,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 92 remaining) [2024-01-29 14:12:47,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 92 remaining) [2024-01-29 14:12:47,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 92 remaining) [2024-01-29 14:12:47,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 92 remaining) [2024-01-29 14:12:47,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 92 remaining) [2024-01-29 14:12:47,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 92 remaining) [2024-01-29 14:12:47,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 92 remaining) [2024-01-29 14:12:47,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 92 remaining) [2024-01-29 14:12:47,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 92 remaining) [2024-01-29 14:12:47,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 92 remaining) [2024-01-29 14:12:47,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 92 remaining) [2024-01-29 14:12:47,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 92 remaining) [2024-01-29 14:12:47,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 92 remaining) [2024-01-29 14:12:47,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 92 remaining) [2024-01-29 14:12:47,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 92 remaining) [2024-01-29 14:12:47,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 92 remaining) [2024-01-29 14:12:47,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 92 remaining) [2024-01-29 14:12:47,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 92 remaining) [2024-01-29 14:12:47,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONERROR_FUNCTION (7 of 92 remaining) [2024-01-29 14:12:47,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 92 remaining) [2024-01-29 14:12:47,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 92 remaining) [2024-01-29 14:12:47,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 92 remaining) [2024-01-29 14:12:47,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 92 remaining) [2024-01-29 14:12:47,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 92 remaining) [2024-01-29 14:12:47,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 92 remaining) [2024-01-29 14:12:47,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 92 remaining) [2024-01-29 14:12:47,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:12:47,202 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-01-29 14:12:47,203 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-29 14:12:47,203 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-01-29 14:12:47,238 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 14:12:47,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 141 transitions, 300 flow [2024-01-29 14:12:47,256 INFO L124 PetriNetUnfolderBase]: 0/147 cut-off events. [2024-01-29 14:12:47,256 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-01-29 14:12:47,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 147 events. 0/147 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 691 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2024-01-29 14:12:47,257 INFO L82 GeneralOperation]: Start removeDead. Operand has 148 places, 141 transitions, 300 flow [2024-01-29 14:12:47,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 148 places, 141 transitions, 300 flow [2024-01-29 14:12:47,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:12:47,264 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;@7bc5dde4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:12:47,264 INFO L358 AbstractCegarLoop]: Starting to check reachability of 122 error locations. [2024-01-29 14:12:47,265 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:12:47,265 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:12:47,265 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:12:47,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:47,265 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:12:47,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 119 more)] === [2024-01-29 14:12:47,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:47,266 INFO L85 PathProgramCache]: Analyzing trace with hash 17938, now seen corresponding path program 1 times [2024-01-29 14:12:47,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:47,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799310559] [2024-01-29 14:12:47,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:47,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:47,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:12:47,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:47,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799310559] [2024-01-29 14:12:47,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799310559] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:47,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:12:47,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:12:47,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153374751] [2024-01-29 14:12:47,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:47,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:12:47,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:47,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:12:47,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:12:47,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 141 [2024-01-29 14:12:47,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 141 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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) [2024-01-29 14:12:47,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:47,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 141 [2024-01-29 14:12:47,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:48,029 INFO L124 PetriNetUnfolderBase]: 4779/10303 cut-off events. [2024-01-29 14:12:48,030 INFO L125 PetriNetUnfolderBase]: For 734/734 co-relation queries the response was YES. [2024-01-29 14:12:48,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17742 conditions, 10303 events. 4779/10303 cut-off events. For 734/734 co-relation queries the response was YES. Maximal size of possible extension queue 740. Compared 101187 event pairs, 4779 based on Foata normal form. 0/5414 useless extension candidates. Maximal degree in co-relation 2538. Up to 7002 conditions per place. [2024-01-29 14:12:48,095 INFO L140 encePairwiseOnDemand]: 95/141 looper letters, 31 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2024-01-29 14:12:48,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 79 transitions, 242 flow [2024-01-29 14:12:48,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:12:48,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:12:48,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2024-01-29 14:12:48,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6146572104018913 [2024-01-29 14:12:48,097 INFO L175 Difference]: Start difference. First operand has 148 places, 141 transitions, 300 flow. Second operand 3 states and 260 transitions. [2024-01-29 14:12:48,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 79 transitions, 242 flow [2024-01-29 14:12:48,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 79 transitions, 240 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-01-29 14:12:48,102 INFO L231 Difference]: Finished difference. Result has 88 places, 79 transitions, 178 flow [2024-01-29 14:12:48,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=88, PETRI_TRANSITIONS=79} [2024-01-29 14:12:48,104 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -60 predicate places. [2024-01-29 14:12:48,104 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 79 transitions, 178 flow [2024-01-29 14:12:48,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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) [2024-01-29 14:12:48,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:48,104 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:12:48,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:12:48,105 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 119 more)] === [2024-01-29 14:12:48,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:48,106 INFO L85 PathProgramCache]: Analyzing trace with hash -596323628, now seen corresponding path program 1 times [2024-01-29 14:12:48,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:48,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782045737] [2024-01-29 14:12:48,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:48,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:48,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:12:48,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:48,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782045737] [2024-01-29 14:12:48,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782045737] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:48,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:12:48,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:12:48,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233406242] [2024-01-29 14:12:48,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:48,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:12:48,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:48,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:12:48,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:12:48,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 141 [2024-01-29 14:12:48,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 79 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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) [2024-01-29 14:12:48,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:48,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 141 [2024-01-29 14:12:48,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:48,837 INFO L124 PetriNetUnfolderBase]: 4279/8825 cut-off events. [2024-01-29 14:12:48,837 INFO L125 PetriNetUnfolderBase]: For 303/303 co-relation queries the response was YES. [2024-01-29 14:12:48,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15412 conditions, 8825 events. 4279/8825 cut-off events. For 303/303 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 82239 event pairs, 279 based on Foata normal form. 444/5550 useless extension candidates. Maximal degree in co-relation 15400. Up to 5776 conditions per place. [2024-01-29 14:12:48,877 INFO L140 encePairwiseOnDemand]: 133/141 looper letters, 52 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-01-29 14:12:48,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 95 transitions, 328 flow [2024-01-29 14:12:48,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:12:48,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:12:48,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 284 transitions. [2024-01-29 14:12:48,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5035460992907801 [2024-01-29 14:12:48,879 INFO L175 Difference]: Start difference. First operand has 88 places, 79 transitions, 178 flow. Second operand 4 states and 284 transitions. [2024-01-29 14:12:48,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 95 transitions, 328 flow [2024-01-29 14:12:48,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 95 transitions, 324 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:12:48,883 INFO L231 Difference]: Finished difference. Result has 83 places, 73 transitions, 166 flow [2024-01-29 14:12:48,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=83, PETRI_TRANSITIONS=73} [2024-01-29 14:12:48,884 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -65 predicate places. [2024-01-29 14:12:48,885 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 73 transitions, 166 flow [2024-01-29 14:12:48,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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) [2024-01-29 14:12:48,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:48,885 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-01-29 14:12:48,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 14:12:48,885 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 119 more)] === [2024-01-29 14:12:48,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:48,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1838365099, now seen corresponding path program 1 times [2024-01-29 14:12:48,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:48,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392160333] [2024-01-29 14:12:48,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:48,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:48,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-29 14:12:48,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:48,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392160333] [2024-01-29 14:12:48,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392160333] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:48,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:12:48,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:12:48,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514593447] [2024-01-29 14:12:48,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:48,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:12:48,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:48,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:12:48,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:12:48,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 141 [2024-01-29 14:12:48,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 73 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2024-01-29 14:12:48,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:48,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 141 [2024-01-29 14:12:48,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:49,424 INFO L124 PetriNetUnfolderBase]: 3385/7225 cut-off events. [2024-01-29 14:12:49,424 INFO L125 PetriNetUnfolderBase]: For 269/269 co-relation queries the response was YES. [2024-01-29 14:12:49,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12463 conditions, 7225 events. 3385/7225 cut-off events. For 269/269 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 65879 event pairs, 1087 based on Foata normal form. 352/4648 useless extension candidates. Maximal degree in co-relation 12444. Up to 4560 conditions per place. [2024-01-29 14:12:49,461 INFO L140 encePairwiseOnDemand]: 133/141 looper letters, 54 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2024-01-29 14:12:49,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 93 transitions, 323 flow [2024-01-29 14:12:49,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:12:49,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:12:49,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 286 transitions. [2024-01-29 14:12:49,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5070921985815603 [2024-01-29 14:12:49,463 INFO L175 Difference]: Start difference. First operand has 83 places, 73 transitions, 166 flow. Second operand 4 states and 286 transitions. [2024-01-29 14:12:49,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 93 transitions, 323 flow [2024-01-29 14:12:49,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 93 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:12:49,466 INFO L231 Difference]: Finished difference. Result has 78 places, 67 transitions, 155 flow [2024-01-29 14:12:49,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=155, PETRI_PLACES=78, PETRI_TRANSITIONS=67} [2024-01-29 14:12:49,466 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -70 predicate places. [2024-01-29 14:12:49,466 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 67 transitions, 155 flow [2024-01-29 14:12:49,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2024-01-29 14:12:49,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:49,467 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:12:49,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 14:12:49,467 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 119 more)] === [2024-01-29 14:12:49,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:49,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1091833878, now seen corresponding path program 1 times [2024-01-29 14:12:49,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:49,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689913940] [2024-01-29 14:12:49,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:49,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:49,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:12:49,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:49,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689913940] [2024-01-29 14:12:49,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689913940] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:49,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:12:49,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:12:49,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767000518] [2024-01-29 14:12:49,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:49,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:12:49,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:49,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:12:49,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:12:49,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 141 [2024-01-29 14:12:49,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 67 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2024-01-29 14:12:49,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:49,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 141 [2024-01-29 14:12:49,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:49,926 INFO L124 PetriNetUnfolderBase]: 3783/6449 cut-off events. [2024-01-29 14:12:49,927 INFO L125 PetriNetUnfolderBase]: For 310/310 co-relation queries the response was YES. [2024-01-29 14:12:49,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12306 conditions, 6449 events. 3783/6449 cut-off events. For 310/310 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 49205 event pairs, 615 based on Foata normal form. 0/4508 useless extension candidates. Maximal degree in co-relation 12288. Up to 4592 conditions per place. [2024-01-29 14:12:49,953 INFO L140 encePairwiseOnDemand]: 134/141 looper letters, 49 selfloop transitions, 1 changer transitions 0/80 dead transitions. [2024-01-29 14:12:49,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 80 transitions, 293 flow [2024-01-29 14:12:49,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:12:49,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:12:49,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-01-29 14:12:49,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4940898345153664 [2024-01-29 14:12:49,955 INFO L175 Difference]: Start difference. First operand has 78 places, 67 transitions, 155 flow. Second operand 3 states and 209 transitions. [2024-01-29 14:12:49,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 80 transitions, 293 flow [2024-01-29 14:12:49,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 80 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:12:49,956 INFO L231 Difference]: Finished difference. Result has 72 places, 61 transitions, 142 flow [2024-01-29 14:12:49,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=72, PETRI_TRANSITIONS=61} [2024-01-29 14:12:49,957 INFO L281 CegarLoopForPetriNet]: 148 programPoint places, -76 predicate places. [2024-01-29 14:12:49,957 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 61 transitions, 142 flow [2024-01-29 14:12:49,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2024-01-29 14:12:49,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:49,957 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2024-01-29 14:12:49,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 14:12:49,958 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 119 more)] === [2024-01-29 14:12:49,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:49,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1440666091, now seen corresponding path program 1 times [2024-01-29 14:12:49,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:49,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093126539] [2024-01-29 14:12:49,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:49,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:12:49,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:12:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:12:49,972 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:12:49,972 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:12:49,972 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (121 of 122 remaining) [2024-01-29 14:12:49,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (120 of 122 remaining) [2024-01-29 14:12:49,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (119 of 122 remaining) [2024-01-29 14:12:49,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (118 of 122 remaining) [2024-01-29 14:12:49,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (117 of 122 remaining) [2024-01-29 14:12:49,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (116 of 122 remaining) [2024-01-29 14:12:49,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (115 of 122 remaining) [2024-01-29 14:12:49,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (114 of 122 remaining) [2024-01-29 14:12:49,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (113 of 122 remaining) [2024-01-29 14:12:49,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (112 of 122 remaining) [2024-01-29 14:12:49,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (111 of 122 remaining) [2024-01-29 14:12:49,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (110 of 122 remaining) [2024-01-29 14:12:49,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (109 of 122 remaining) [2024-01-29 14:12:49,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (108 of 122 remaining) [2024-01-29 14:12:49,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (107 of 122 remaining) [2024-01-29 14:12:49,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (106 of 122 remaining) [2024-01-29 14:12:49,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (105 of 122 remaining) [2024-01-29 14:12:49,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (104 of 122 remaining) [2024-01-29 14:12:49,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (103 of 122 remaining) [2024-01-29 14:12:49,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (102 of 122 remaining) [2024-01-29 14:12:49,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (101 of 122 remaining) [2024-01-29 14:12:49,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (100 of 122 remaining) [2024-01-29 14:12:49,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (99 of 122 remaining) [2024-01-29 14:12:49,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONERROR_FUNCTION (98 of 122 remaining) [2024-01-29 14:12:49,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (97 of 122 remaining) [2024-01-29 14:12:49,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (96 of 122 remaining) [2024-01-29 14:12:49,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (95 of 122 remaining) [2024-01-29 14:12:49,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (94 of 122 remaining) [2024-01-29 14:12:49,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (93 of 122 remaining) [2024-01-29 14:12:49,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (92 of 122 remaining) [2024-01-29 14:12:49,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (91 of 122 remaining) [2024-01-29 14:12:49,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 122 remaining) [2024-01-29 14:12:49,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 122 remaining) [2024-01-29 14:12:49,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 122 remaining) [2024-01-29 14:12:49,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 122 remaining) [2024-01-29 14:12:49,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 122 remaining) [2024-01-29 14:12:49,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 122 remaining) [2024-01-29 14:12:49,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 122 remaining) [2024-01-29 14:12:49,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 122 remaining) [2024-01-29 14:12:49,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 122 remaining) [2024-01-29 14:12:49,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 122 remaining) [2024-01-29 14:12:49,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 122 remaining) [2024-01-29 14:12:49,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 122 remaining) [2024-01-29 14:12:49,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 122 remaining) [2024-01-29 14:12:49,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 122 remaining) [2024-01-29 14:12:49,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 122 remaining) [2024-01-29 14:12:49,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 122 remaining) [2024-01-29 14:12:49,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 122 remaining) [2024-01-29 14:12:49,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 122 remaining) [2024-01-29 14:12:49,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 122 remaining) [2024-01-29 14:12:49,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 122 remaining) [2024-01-29 14:12:49,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 122 remaining) [2024-01-29 14:12:49,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 122 remaining) [2024-01-29 14:12:49,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 122 remaining) [2024-01-29 14:12:49,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONERROR_FUNCTION (67 of 122 remaining) [2024-01-29 14:12:49,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 122 remaining) [2024-01-29 14:12:49,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 122 remaining) [2024-01-29 14:12:49,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 122 remaining) [2024-01-29 14:12:49,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 122 remaining) [2024-01-29 14:12:49,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 122 remaining) [2024-01-29 14:12:49,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 122 remaining) [2024-01-29 14:12:49,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 122 remaining) [2024-01-29 14:12:49,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 122 remaining) [2024-01-29 14:12:49,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 122 remaining) [2024-01-29 14:12:49,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 122 remaining) [2024-01-29 14:12:49,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 122 remaining) [2024-01-29 14:12:49,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 122 remaining) [2024-01-29 14:12:49,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 122 remaining) [2024-01-29 14:12:49,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 122 remaining) [2024-01-29 14:12:49,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 122 remaining) [2024-01-29 14:12:49,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 122 remaining) [2024-01-29 14:12:49,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 122 remaining) [2024-01-29 14:12:49,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 122 remaining) [2024-01-29 14:12:49,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 122 remaining) [2024-01-29 14:12:49,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 122 remaining) [2024-01-29 14:12:49,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 122 remaining) [2024-01-29 14:12:49,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 122 remaining) [2024-01-29 14:12:49,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 122 remaining) [2024-01-29 14:12:49,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 122 remaining) [2024-01-29 14:12:49,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 122 remaining) [2024-01-29 14:12:49,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 122 remaining) [2024-01-29 14:12:49,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 122 remaining) [2024-01-29 14:12:49,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 122 remaining) [2024-01-29 14:12:49,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 122 remaining) [2024-01-29 14:12:49,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONERROR_FUNCTION (37 of 122 remaining) [2024-01-29 14:12:49,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 122 remaining) [2024-01-29 14:12:49,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 122 remaining) [2024-01-29 14:12:49,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 122 remaining) [2024-01-29 14:12:49,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 122 remaining) [2024-01-29 14:12:49,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 122 remaining) [2024-01-29 14:12:49,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 122 remaining) [2024-01-29 14:12:49,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 122 remaining) [2024-01-29 14:12:49,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 122 remaining) [2024-01-29 14:12:49,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 122 remaining) [2024-01-29 14:12:49,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 122 remaining) [2024-01-29 14:12:49,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 122 remaining) [2024-01-29 14:12:49,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 122 remaining) [2024-01-29 14:12:49,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 122 remaining) [2024-01-29 14:12:49,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 122 remaining) [2024-01-29 14:12:49,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 122 remaining) [2024-01-29 14:12:49,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 122 remaining) [2024-01-29 14:12:49,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 122 remaining) [2024-01-29 14:12:49,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 122 remaining) [2024-01-29 14:12:49,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 122 remaining) [2024-01-29 14:12:49,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 122 remaining) [2024-01-29 14:12:49,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 122 remaining) [2024-01-29 14:12:49,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 122 remaining) [2024-01-29 14:12:49,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 122 remaining) [2024-01-29 14:12:49,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 122 remaining) [2024-01-29 14:12:49,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 122 remaining) [2024-01-29 14:12:49,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 122 remaining) [2024-01-29 14:12:49,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 122 remaining) [2024-01-29 14:12:49,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 122 remaining) [2024-01-29 14:12:49,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 122 remaining) [2024-01-29 14:12:49,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONERROR_FUNCTION (7 of 122 remaining) [2024-01-29 14:12:49,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 122 remaining) [2024-01-29 14:12:49,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 122 remaining) [2024-01-29 14:12:49,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 122 remaining) [2024-01-29 14:12:49,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 122 remaining) [2024-01-29 14:12:49,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 122 remaining) [2024-01-29 14:12:49,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 122 remaining) [2024-01-29 14:12:49,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 122 remaining) [2024-01-29 14:12:49,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 14:12:49,988 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-01-29 14:12:49,989 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-29 14:12:49,989 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-01-29 14:12:50,016 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 14:12:50,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 186 transitions, 400 flow [2024-01-29 14:12:50,033 INFO L124 PetriNetUnfolderBase]: 0/194 cut-off events. [2024-01-29 14:12:50,033 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-01-29 14:12:50,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 194 events. 0/194 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1043 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2024-01-29 14:12:50,033 INFO L82 GeneralOperation]: Start removeDead. Operand has 195 places, 186 transitions, 400 flow [2024-01-29 14:12:50,036 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 195 places, 186 transitions, 400 flow [2024-01-29 14:12:50,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:12:50,037 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;@7bc5dde4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:12:50,037 INFO L358 AbstractCegarLoop]: Starting to check reachability of 152 error locations. [2024-01-29 14:12:50,038 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:12:50,038 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:12:50,038 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:12:50,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:50,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:12:50,038 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 149 more)] === [2024-01-29 14:12:50,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:50,038 INFO L85 PathProgramCache]: Analyzing trace with hash 23890, now seen corresponding path program 1 times [2024-01-29 14:12:50,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:50,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231057064] [2024-01-29 14:12:50,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:50,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:50,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:50,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:12:50,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:50,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231057064] [2024-01-29 14:12:50,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231057064] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:50,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:12:50,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:12:50,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207487939] [2024-01-29 14:12:50,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:50,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:12:50,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:50,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:12:50,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:12:50,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 186 [2024-01-29 14:12:50,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 186 transitions, 400 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2024-01-29 14:12:50,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:50,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 186 [2024-01-29 14:12:50,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:57,355 INFO L124 PetriNetUnfolderBase]: 67779/123063 cut-off events. [2024-01-29 14:12:57,355 INFO L125 PetriNetUnfolderBase]: For 12854/12854 co-relation queries the response was YES. [2024-01-29 14:12:57,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218503 conditions, 123063 events. 67779/123063 cut-off events. For 12854/12854 co-relation queries the response was YES. Maximal size of possible extension queue 6364. Compared 1406814 event pairs, 67779 based on Foata normal form. 0/63010 useless extension candidates. Maximal degree in co-relation 17844. Up to 90002 conditions per place. [2024-01-29 14:12:58,183 INFO L140 encePairwiseOnDemand]: 126/186 looper letters, 41 selfloop transitions, 2 changer transitions 0/104 dead transitions. [2024-01-29 14:12:58,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 104 transitions, 322 flow [2024-01-29 14:12:58,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:12:58,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:12:58,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2024-01-29 14:12:58,185 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6164874551971327 [2024-01-29 14:12:58,185 INFO L175 Difference]: Start difference. First operand has 195 places, 186 transitions, 400 flow. Second operand 3 states and 344 transitions. [2024-01-29 14:12:58,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 104 transitions, 322 flow [2024-01-29 14:12:58,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 104 transitions, 316 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-01-29 14:12:58,192 INFO L231 Difference]: Finished difference. Result has 115 places, 104 transitions, 234 flow [2024-01-29 14:12:58,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=115, PETRI_TRANSITIONS=104} [2024-01-29 14:12:58,192 INFO L281 CegarLoopForPetriNet]: 195 programPoint places, -80 predicate places. [2024-01-29 14:12:58,192 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 104 transitions, 234 flow [2024-01-29 14:12:58,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2024-01-29 14:12:58,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:58,193 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:12:58,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-29 14:12:58,193 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 149 more)] === [2024-01-29 14:12:58,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:58,194 INFO L85 PathProgramCache]: Analyzing trace with hash 611275584, now seen corresponding path program 1 times [2024-01-29 14:12:58,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:58,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189324049] [2024-01-29 14:12:58,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:58,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:58,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:12:58,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:58,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189324049] [2024-01-29 14:12:58,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189324049] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:58,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:12:58,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:12:58,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575941010] [2024-01-29 14:12:58,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:58,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:12:58,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:58,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:12:58,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:12:58,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 186 [2024-01-29 14:12:58,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 104 transitions, 234 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2024-01-29 14:12:58,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:58,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 186 [2024-01-29 14:12:58,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:13:04,365 INFO L124 PetriNetUnfolderBase]: 60779/110513 cut-off events. [2024-01-29 14:13:04,366 INFO L125 PetriNetUnfolderBase]: For 3223/3223 co-relation queries the response was YES. [2024-01-29 14:13:04,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194301 conditions, 110513 events. 60779/110513 cut-off events. For 3223/3223 co-relation queries the response was YES. Maximal size of possible extension queue 5364. Compared 1240014 event pairs, 48789 based on Foata normal form. 4444/64192 useless extension candidates. Maximal degree in co-relation 194288. Up to 73776 conditions per place. [2024-01-29 14:13:05,290 INFO L140 encePairwiseOnDemand]: 178/186 looper letters, 72 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2024-01-29 14:13:05,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 130 transitions, 449 flow [2024-01-29 14:13:05,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:13:05,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:13:05,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 384 transitions. [2024-01-29 14:13:05,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2024-01-29 14:13:05,292 INFO L175 Difference]: Start difference. First operand has 115 places, 104 transitions, 234 flow. Second operand 4 states and 384 transitions. [2024-01-29 14:13:05,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 130 transitions, 449 flow [2024-01-29 14:13:05,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 130 transitions, 445 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:13:05,296 INFO L231 Difference]: Finished difference. Result has 110 places, 98 transitions, 222 flow [2024-01-29 14:13:05,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=110, PETRI_TRANSITIONS=98} [2024-01-29 14:13:05,297 INFO L281 CegarLoopForPetriNet]: 195 programPoint places, -85 predicate places. [2024-01-29 14:13:05,297 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 98 transitions, 222 flow [2024-01-29 14:13:05,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2024-01-29 14:13:05,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:13:05,297 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-01-29 14:13:05,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-29 14:13:05,298 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 149 more)] === [2024-01-29 14:13:05,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:13:05,298 INFO L85 PathProgramCache]: Analyzing trace with hash -977995731, now seen corresponding path program 1 times [2024-01-29 14:13:05,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:13:05,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907379124] [2024-01-29 14:13:05,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:13:05,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:13:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:13:05,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-29 14:13:05,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:13:05,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907379124] [2024-01-29 14:13:05,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907379124] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:13:05,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:13:05,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:13:05,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104691245] [2024-01-29 14:13:05,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:13:05,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:13:05,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:13:05,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:13:05,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:13:05,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 186 [2024-01-29 14:13:05,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 98 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 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) [2024-01-29 14:13:05,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:13:05,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 186 [2024-01-29 14:13:05,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:13:09,907 INFO L124 PetriNetUnfolderBase]: 48225/82817 cut-off events. [2024-01-29 14:13:09,907 INFO L125 PetriNetUnfolderBase]: For 2541/2541 co-relation queries the response was YES. [2024-01-29 14:13:10,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149456 conditions, 82817 events. 48225/82817 cut-off events. For 2541/2541 co-relation queries the response was YES. Maximal size of possible extension queue 4020. Compared 843788 event pairs, 19487 based on Foata normal form. 3552/51160 useless extension candidates. Maximal degree in co-relation 149436. Up to 58640 conditions per place. [2024-01-29 14:13:10,536 INFO L140 encePairwiseOnDemand]: 178/186 looper letters, 74 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2024-01-29 14:13:10,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 128 transitions, 444 flow [2024-01-29 14:13:10,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:13:10,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:13:10,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 386 transitions. [2024-01-29 14:13:10,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5188172043010753 [2024-01-29 14:13:10,538 INFO L175 Difference]: Start difference. First operand has 110 places, 98 transitions, 222 flow. Second operand 4 states and 386 transitions. [2024-01-29 14:13:10,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 128 transitions, 444 flow [2024-01-29 14:13:10,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 128 transitions, 441 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:13:10,541 INFO L231 Difference]: Finished difference. Result has 105 places, 92 transitions, 211 flow [2024-01-29 14:13:10,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=105, PETRI_TRANSITIONS=92} [2024-01-29 14:13:10,542 INFO L281 CegarLoopForPetriNet]: 195 programPoint places, -90 predicate places. [2024-01-29 14:13:10,542 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 92 transitions, 211 flow [2024-01-29 14:13:10,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 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) [2024-01-29 14:13:10,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:13:10,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:13:10,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-01-29 14:13:10,543 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 149 more)] === [2024-01-29 14:13:10,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:13:10,543 INFO L85 PathProgramCache]: Analyzing trace with hash -149552092, now seen corresponding path program 1 times [2024-01-29 14:13:10,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:13:10,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38725471] [2024-01-29 14:13:10,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:13:10,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:13:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:13:10,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:13:10,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:13:10,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38725471] [2024-01-29 14:13:10,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38725471] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:13:10,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:13:10,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:13:10,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5383403] [2024-01-29 14:13:10,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:13:10,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:13:10,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:13:10,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:13:10,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:13:10,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 186 [2024-01-29 14:13:10,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 92 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2024-01-29 14:13:10,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:13:10,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 186 [2024-01-29 14:13:10,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:13:15,096 INFO L124 PetriNetUnfolderBase]: 53783/80409 cut-off events. [2024-01-29 14:13:15,097 INFO L125 PetriNetUnfolderBase]: For 3054/3054 co-relation queries the response was YES. [2024-01-29 14:13:15,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154667 conditions, 80409 events. 53783/80409 cut-off events. For 3054/3054 co-relation queries the response was YES. Maximal size of possible extension queue 3900. Compared 691383 event pairs, 9335 based on Foata normal form. 0/52010 useless extension candidates. Maximal degree in co-relation 154648. Up to 58672 conditions per place. [2024-01-29 14:13:15,678 INFO L140 encePairwiseOnDemand]: 179/186 looper letters, 69 selfloop transitions, 1 changer transitions 0/115 dead transitions. [2024-01-29 14:13:15,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 115 transitions, 414 flow [2024-01-29 14:13:15,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:13:15,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:13:15,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2024-01-29 14:13:15,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.517921146953405 [2024-01-29 14:13:15,680 INFO L175 Difference]: Start difference. First operand has 105 places, 92 transitions, 211 flow. Second operand 3 states and 289 transitions. [2024-01-29 14:13:15,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 115 transitions, 414 flow [2024-01-29 14:13:15,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 115 transitions, 409 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:13:15,684 INFO L231 Difference]: Finished difference. Result has 99 places, 86 transitions, 198 flow [2024-01-29 14:13:15,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=99, PETRI_TRANSITIONS=86} [2024-01-29 14:13:15,685 INFO L281 CegarLoopForPetriNet]: 195 programPoint places, -96 predicate places. [2024-01-29 14:13:15,685 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 86 transitions, 198 flow [2024-01-29 14:13:15,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2024-01-29 14:13:15,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:13:15,685 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:13:15,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-01-29 14:13:15,685 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 149 more)] === [2024-01-29 14:13:15,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:13:15,685 INFO L85 PathProgramCache]: Analyzing trace with hash 739271579, now seen corresponding path program 1 times [2024-01-29 14:13:15,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:13:15,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970596818] [2024-01-29 14:13:15,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:13:15,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:13:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:13:15,742 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-01-29 14:13:15,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:13:15,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970596818] [2024-01-29 14:13:15,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970596818] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:13:15,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:13:15,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:13:15,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321369042] [2024-01-29 14:13:15,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:13:15,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:13:15,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:13:15,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:13:15,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:13:15,755 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 186 [2024-01-29 14:13:15,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 86 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2024-01-29 14:13:15,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:13:15,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 186 [2024-01-29 14:13:15,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:13:18,507 INFO L124 PetriNetUnfolderBase]: 28315/50041 cut-off events. [2024-01-29 14:13:18,507 INFO L125 PetriNetUnfolderBase]: For 3527/3527 co-relation queries the response was YES. [2024-01-29 14:13:18,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91043 conditions, 50041 events. 28315/50041 cut-off events. For 3527/3527 co-relation queries the response was YES. Maximal size of possible extension queue 2379. Compared 494573 event pairs, 559 based on Foata normal form. 2112/34106 useless extension candidates. Maximal degree in co-relation 91024. Up to 34400 conditions per place. [2024-01-29 14:13:18,836 INFO L140 encePairwiseOnDemand]: 178/186 looper letters, 70 selfloop transitions, 2 changer transitions 0/116 dead transitions. [2024-01-29 14:13:18,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 116 transitions, 411 flow [2024-01-29 14:13:18,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:13:18,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:13:18,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 382 transitions. [2024-01-29 14:13:18,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5134408602150538 [2024-01-29 14:13:18,837 INFO L175 Difference]: Start difference. First operand has 99 places, 86 transitions, 198 flow. Second operand 4 states and 382 transitions. [2024-01-29 14:13:18,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 116 transitions, 411 flow [2024-01-29 14:13:18,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 116 transitions, 408 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:13:18,842 INFO L231 Difference]: Finished difference. Result has 95 places, 80 transitions, 189 flow [2024-01-29 14:13:18,842 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=189, PETRI_PLACES=95, PETRI_TRANSITIONS=80} [2024-01-29 14:13:18,842 INFO L281 CegarLoopForPetriNet]: 195 programPoint places, -100 predicate places. [2024-01-29 14:13:18,842 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 80 transitions, 189 flow [2024-01-29 14:13:18,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2024-01-29 14:13:18,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:13:18,843 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:13:18,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-01-29 14:13:18,843 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 149 more)] === [2024-01-29 14:13:18,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:13:18,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1588217539, now seen corresponding path program 1 times [2024-01-29 14:13:18,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:13:18,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122992080] [2024-01-29 14:13:18,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:13:18,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:13:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:13:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-29 14:13:18,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:13:18,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122992080] [2024-01-29 14:13:18,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122992080] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:13:18,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:13:18,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:13:18,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529709876] [2024-01-29 14:13:18,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:13:18,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:13:18,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:13:18,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:13:18,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:13:18,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 186 [2024-01-29 14:13:18,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 80 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2024-01-29 14:13:18,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:13:18,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 186 [2024-01-29 14:13:18,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:13:21,593 INFO L124 PetriNetUnfolderBase]: 31603/47629 cut-off events. [2024-01-29 14:13:21,593 INFO L125 PetriNetUnfolderBase]: For 2042/2042 co-relation queries the response was YES. [2024-01-29 14:13:21,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93431 conditions, 47629 events. 31603/47629 cut-off events. For 2042/2042 co-relation queries the response was YES. Maximal size of possible extension queue 2278. Compared 387928 event pairs, 5475 based on Foata normal form. 0/34182 useless extension candidates. Maximal degree in co-relation 93412. Up to 34672 conditions per place. [2024-01-29 14:13:21,892 INFO L140 encePairwiseOnDemand]: 179/186 looper letters, 60 selfloop transitions, 1 changer transitions 0/98 dead transitions. [2024-01-29 14:13:21,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 98 transitions, 360 flow [2024-01-29 14:13:21,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:13:21,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:13:21,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2024-01-29 14:13:21,894 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5017921146953405 [2024-01-29 14:13:21,894 INFO L175 Difference]: Start difference. First operand has 95 places, 80 transitions, 189 flow. Second operand 3 states and 280 transitions. [2024-01-29 14:13:21,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 98 transitions, 360 flow [2024-01-29 14:13:21,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 98 transitions, 355 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:13:21,897 INFO L231 Difference]: Finished difference. Result has 89 places, 74 transitions, 176 flow [2024-01-29 14:13:21,897 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=89, PETRI_TRANSITIONS=74} [2024-01-29 14:13:21,897 INFO L281 CegarLoopForPetriNet]: 195 programPoint places, -106 predicate places. [2024-01-29 14:13:21,897 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 74 transitions, 176 flow [2024-01-29 14:13:21,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2024-01-29 14:13:21,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:13:21,898 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:13:21,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-01-29 14:13:21,898 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 149 more)] === [2024-01-29 14:13:21,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:13:21,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1769774388, now seen corresponding path program 1 times [2024-01-29 14:13:21,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:13:21,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154201741] [2024-01-29 14:13:21,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:13:21,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:13:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:13:21,910 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:13:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:13:21,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:13:21,916 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:13:21,917 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (151 of 152 remaining) [2024-01-29 14:13:21,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (150 of 152 remaining) [2024-01-29 14:13:21,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (149 of 152 remaining) [2024-01-29 14:13:21,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (148 of 152 remaining) [2024-01-29 14:13:21,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (147 of 152 remaining) [2024-01-29 14:13:21,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (146 of 152 remaining) [2024-01-29 14:13:21,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (145 of 152 remaining) [2024-01-29 14:13:21,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (144 of 152 remaining) [2024-01-29 14:13:21,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (143 of 152 remaining) [2024-01-29 14:13:21,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (142 of 152 remaining) [2024-01-29 14:13:21,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (141 of 152 remaining) [2024-01-29 14:13:21,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (140 of 152 remaining) [2024-01-29 14:13:21,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (139 of 152 remaining) [2024-01-29 14:13:21,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (138 of 152 remaining) [2024-01-29 14:13:21,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (137 of 152 remaining) [2024-01-29 14:13:21,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (136 of 152 remaining) [2024-01-29 14:13:21,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (135 of 152 remaining) [2024-01-29 14:13:21,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (134 of 152 remaining) [2024-01-29 14:13:21,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (133 of 152 remaining) [2024-01-29 14:13:21,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (132 of 152 remaining) [2024-01-29 14:13:21,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (131 of 152 remaining) [2024-01-29 14:13:21,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (130 of 152 remaining) [2024-01-29 14:13:21,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (129 of 152 remaining) [2024-01-29 14:13:21,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONERROR_FUNCTION (128 of 152 remaining) [2024-01-29 14:13:21,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (127 of 152 remaining) [2024-01-29 14:13:21,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (126 of 152 remaining) [2024-01-29 14:13:21,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (125 of 152 remaining) [2024-01-29 14:13:21,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (124 of 152 remaining) [2024-01-29 14:13:21,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (123 of 152 remaining) [2024-01-29 14:13:21,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (122 of 152 remaining) [2024-01-29 14:13:21,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (121 of 152 remaining) [2024-01-29 14:13:21,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (120 of 152 remaining) [2024-01-29 14:13:21,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (119 of 152 remaining) [2024-01-29 14:13:21,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (118 of 152 remaining) [2024-01-29 14:13:21,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (117 of 152 remaining) [2024-01-29 14:13:21,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (116 of 152 remaining) [2024-01-29 14:13:21,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (115 of 152 remaining) [2024-01-29 14:13:21,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (114 of 152 remaining) [2024-01-29 14:13:21,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (113 of 152 remaining) [2024-01-29 14:13:21,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (112 of 152 remaining) [2024-01-29 14:13:21,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (111 of 152 remaining) [2024-01-29 14:13:21,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (110 of 152 remaining) [2024-01-29 14:13:21,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (109 of 152 remaining) [2024-01-29 14:13:21,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (108 of 152 remaining) [2024-01-29 14:13:21,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (107 of 152 remaining) [2024-01-29 14:13:21,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (106 of 152 remaining) [2024-01-29 14:13:21,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (105 of 152 remaining) [2024-01-29 14:13:21,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (104 of 152 remaining) [2024-01-29 14:13:21,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (103 of 152 remaining) [2024-01-29 14:13:21,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (102 of 152 remaining) [2024-01-29 14:13:21,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (101 of 152 remaining) [2024-01-29 14:13:21,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (100 of 152 remaining) [2024-01-29 14:13:21,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (99 of 152 remaining) [2024-01-29 14:13:21,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (98 of 152 remaining) [2024-01-29 14:13:21,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONERROR_FUNCTION (97 of 152 remaining) [2024-01-29 14:13:21,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (96 of 152 remaining) [2024-01-29 14:13:21,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (95 of 152 remaining) [2024-01-29 14:13:21,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (94 of 152 remaining) [2024-01-29 14:13:21,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (93 of 152 remaining) [2024-01-29 14:13:21,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (92 of 152 remaining) [2024-01-29 14:13:21,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (91 of 152 remaining) [2024-01-29 14:13:21,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 152 remaining) [2024-01-29 14:13:21,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 152 remaining) [2024-01-29 14:13:21,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 152 remaining) [2024-01-29 14:13:21,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 152 remaining) [2024-01-29 14:13:21,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 152 remaining) [2024-01-29 14:13:21,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 152 remaining) [2024-01-29 14:13:21,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 152 remaining) [2024-01-29 14:13:21,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 152 remaining) [2024-01-29 14:13:21,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 152 remaining) [2024-01-29 14:13:21,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 152 remaining) [2024-01-29 14:13:21,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 152 remaining) [2024-01-29 14:13:21,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 152 remaining) [2024-01-29 14:13:21,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 152 remaining) [2024-01-29 14:13:21,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 152 remaining) [2024-01-29 14:13:21,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 152 remaining) [2024-01-29 14:13:21,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 152 remaining) [2024-01-29 14:13:21,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 152 remaining) [2024-01-29 14:13:21,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 152 remaining) [2024-01-29 14:13:21,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 152 remaining) [2024-01-29 14:13:21,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 152 remaining) [2024-01-29 14:13:21,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 152 remaining) [2024-01-29 14:13:21,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 152 remaining) [2024-01-29 14:13:21,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 152 remaining) [2024-01-29 14:13:21,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONERROR_FUNCTION (67 of 152 remaining) [2024-01-29 14:13:21,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 152 remaining) [2024-01-29 14:13:21,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 152 remaining) [2024-01-29 14:13:21,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 152 remaining) [2024-01-29 14:13:21,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 152 remaining) [2024-01-29 14:13:21,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 152 remaining) [2024-01-29 14:13:21,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 152 remaining) [2024-01-29 14:13:21,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 152 remaining) [2024-01-29 14:13:21,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 152 remaining) [2024-01-29 14:13:21,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 152 remaining) [2024-01-29 14:13:21,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 152 remaining) [2024-01-29 14:13:21,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 152 remaining) [2024-01-29 14:13:21,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 152 remaining) [2024-01-29 14:13:21,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 152 remaining) [2024-01-29 14:13:21,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 152 remaining) [2024-01-29 14:13:21,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 152 remaining) [2024-01-29 14:13:21,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 152 remaining) [2024-01-29 14:13:21,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 152 remaining) [2024-01-29 14:13:21,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 152 remaining) [2024-01-29 14:13:21,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 152 remaining) [2024-01-29 14:13:21,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 152 remaining) [2024-01-29 14:13:21,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 152 remaining) [2024-01-29 14:13:21,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 152 remaining) [2024-01-29 14:13:21,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 152 remaining) [2024-01-29 14:13:21,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 152 remaining) [2024-01-29 14:13:21,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 152 remaining) [2024-01-29 14:13:21,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 152 remaining) [2024-01-29 14:13:21,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 152 remaining) [2024-01-29 14:13:21,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 152 remaining) [2024-01-29 14:13:21,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 152 remaining) [2024-01-29 14:13:21,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONERROR_FUNCTION (37 of 152 remaining) [2024-01-29 14:13:21,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 152 remaining) [2024-01-29 14:13:21,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 152 remaining) [2024-01-29 14:13:21,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 152 remaining) [2024-01-29 14:13:21,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 152 remaining) [2024-01-29 14:13:21,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 152 remaining) [2024-01-29 14:13:21,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 152 remaining) [2024-01-29 14:13:21,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 152 remaining) [2024-01-29 14:13:21,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 152 remaining) [2024-01-29 14:13:21,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 152 remaining) [2024-01-29 14:13:21,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 152 remaining) [2024-01-29 14:13:21,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 152 remaining) [2024-01-29 14:13:21,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 152 remaining) [2024-01-29 14:13:21,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 152 remaining) [2024-01-29 14:13:21,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 152 remaining) [2024-01-29 14:13:21,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 152 remaining) [2024-01-29 14:13:21,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 152 remaining) [2024-01-29 14:13:21,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 152 remaining) [2024-01-29 14:13:21,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 152 remaining) [2024-01-29 14:13:21,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 152 remaining) [2024-01-29 14:13:21,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 152 remaining) [2024-01-29 14:13:21,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 152 remaining) [2024-01-29 14:13:21,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 152 remaining) [2024-01-29 14:13:21,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 152 remaining) [2024-01-29 14:13:21,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 152 remaining) [2024-01-29 14:13:21,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 152 remaining) [2024-01-29 14:13:21,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 152 remaining) [2024-01-29 14:13:21,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 152 remaining) [2024-01-29 14:13:21,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 152 remaining) [2024-01-29 14:13:21,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 152 remaining) [2024-01-29 14:13:21,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONERROR_FUNCTION (7 of 152 remaining) [2024-01-29 14:13:21,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 152 remaining) [2024-01-29 14:13:21,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 152 remaining) [2024-01-29 14:13:21,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 152 remaining) [2024-01-29 14:13:21,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 152 remaining) [2024-01-29 14:13:21,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 152 remaining) [2024-01-29 14:13:21,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 152 remaining) [2024-01-29 14:13:21,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 152 remaining) [2024-01-29 14:13:21,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-01-29 14:13:21,936 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:13:21,936 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-29 14:13:21,936 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-01-29 14:13:21,964 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 14:13:21,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 242 places, 231 transitions, 502 flow [2024-01-29 14:13:21,982 INFO L124 PetriNetUnfolderBase]: 0/241 cut-off events. [2024-01-29 14:13:21,982 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-01-29 14:13:21,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 241 events. 0/241 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1401 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2024-01-29 14:13:21,983 INFO L82 GeneralOperation]: Start removeDead. Operand has 242 places, 231 transitions, 502 flow [2024-01-29 14:13:21,986 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 242 places, 231 transitions, 502 flow [2024-01-29 14:13:21,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:13:21,987 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;@7bc5dde4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:13:21,987 INFO L358 AbstractCegarLoop]: Starting to check reachability of 182 error locations. [2024-01-29 14:13:21,988 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:13:21,988 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:13:21,988 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:13:21,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:13:21,988 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:13:21,989 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 179 more)] === [2024-01-29 14:13:21,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:13:21,989 INFO L85 PathProgramCache]: Analyzing trace with hash 31282, now seen corresponding path program 1 times [2024-01-29 14:13:21,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:13:21,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595005358] [2024-01-29 14:13:21,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:13:21,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:13:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:13:21,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:13:21,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:13:21,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595005358] [2024-01-29 14:13:21,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595005358] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:13:21,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:13:21,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:13:21,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494752677] [2024-01-29 14:13:21,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:13:21,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:13:21,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:13:21,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:13:21,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:13:21,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 231 [2024-01-29 14:13:21,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 231 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2024-01-29 14:13:21,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:13:21,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 231 [2024-01-29 14:13:21,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand