./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7c74aec 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-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.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-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:03:40,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:03:40,636 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:03:40,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:03:40,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:03:40,673 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:03:40,674 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:03:40,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:03:40,675 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:03:40,679 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:03:40,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:03:40,679 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:03:40,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:03:40,682 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:03:40,682 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:03:40,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:03:40,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:03:40,683 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:03:40,683 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:03:40,684 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:03:40,684 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:03:40,684 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:03:40,685 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:03:40,685 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:03:40,685 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:03:40,686 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:03:40,686 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:03:40,686 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:03:40,687 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:03:40,687 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:03:40,688 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:03:40,688 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:03:40,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:03:40,689 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:03:40,689 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:03:40,689 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:03:40,690 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:03:40,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:03:40,691 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:03:40,691 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:03:40,691 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:03:40,692 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:03:40,692 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:03:40,692 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:03:40,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:03:41,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:03:41,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:03:41,013 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:03:41,013 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:03:41,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-02-07 19:03:42,427 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:03:42,743 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:03:42,744 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-02-07 19:03:42,777 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e81f7be/8df5f32b34b847ba8722ec8d2954bd6c/FLAG19fd988b3 [2024-02-07 19:03:42,795 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e81f7be/8df5f32b34b847ba8722ec8d2954bd6c [2024-02-07 19:03:42,797 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:03:42,798 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:03:42,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.yml/witness.yml [2024-02-07 19:03:42,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:03:42,923 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:03:42,924 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:03:42,925 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:03:42,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:03:42,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:03:42" (1/2) ... [2024-02-07 19:03:42,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af37a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:03:42, skipping insertion in model container [2024-02-07 19:03:42,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:03:42" (1/2) ... [2024-02-07 19:03:42,933 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@66869bdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:03:42, skipping insertion in model container [2024-02-07 19:03:42,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:03:42" (2/2) ... [2024-02-07 19:03:42,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af37a7e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:03:42, skipping insertion in model container [2024-02-07 19:03:42,935 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:03:42" (2/2) ... [2024-02-07 19:03:42,935 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:03:43,017 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:03:43,018 INFO L76 edCorrectnessWitness]: Location invariant before [L728-L728] ((0 <= __unbuffered_p0_EAX) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) [2024-02-07 19:03:43,019 INFO L76 edCorrectnessWitness]: Location invariant before [L789-L789] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 19:03:43,019 INFO L76 edCorrectnessWitness]: Location invariant before [L735-L735] 0 <= __unbuffered_cnt [2024-02-07 19:03:43,019 INFO L76 edCorrectnessWitness]: Location invariant before [L727-L727] ((0 <= z) && (z <= 1)) && (z == 0 || z == 1) [2024-02-07 19:03:43,019 INFO L76 edCorrectnessWitness]: Location invariant before [L746-L746] y == 1 [2024-02-07 19:03:43,019 INFO L76 edCorrectnessWitness]: Location invariant before [L736-L736] 1 <= __unbuffered_cnt [2024-02-07 19:03:43,020 INFO L76 edCorrectnessWitness]: Location invariant before [L18-L18] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-07 19:03:43,020 INFO L76 edCorrectnessWitness]: Location invariant before [L757-L757] ((0 <= y) && (y <= 1)) && (y == 0 || y == 1) [2024-02-07 19:03:43,020 INFO L76 edCorrectnessWitness]: Location invariant before [L731-L731] x == 1 [2024-02-07 19:03:43,020 INFO L76 edCorrectnessWitness]: Location invariant before [L750-L750] 0 <= __unbuffered_cnt [2024-02-07 19:03:43,020 INFO L76 edCorrectnessWitness]: Location invariant before [L742-L742] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 19:03:43,021 INFO L76 edCorrectnessWitness]: Location invariant before [L751-L751] 1 <= __unbuffered_cnt [2024-02-07 19:03:43,021 INFO L76 edCorrectnessWitness]: Location invariant before [L761-L761] z == 1 [2024-02-07 19:03:43,021 INFO L76 edCorrectnessWitness]: Location invariant before [L758-L758] ((0 <= __unbuffered_p2_EAX) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) [2024-02-07 19:03:43,021 INFO L76 edCorrectnessWitness]: Location invariant before [L793-L793] ((((0 <= __unbuffered_p2_EAX) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p0_EAX == 1)) && (__unbuffered_p1_EAX == 1 || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) [2024-02-07 19:03:43,021 INFO L76 edCorrectnessWitness]: Location invariant before [L766-L766] 1 <= __unbuffered_cnt [2024-02-07 19:03:43,022 INFO L76 edCorrectnessWitness]: Location invariant before [L765-L765] 0 <= __unbuffered_cnt [2024-02-07 19:03:43,022 INFO L76 edCorrectnessWitness]: Location invariant before [L795-L795] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 19:03:43,022 INFO L76 edCorrectnessWitness]: Location invariant before [L794-L794] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 19:03:43,022 INFO L76 edCorrectnessWitness]: Location invariant before [L788-L788] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 19:03:43,022 INFO L76 edCorrectnessWitness]: Location invariant before [L743-L743] ((0 <= __unbuffered_p1_EAX) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1) [2024-02-07 19:03:43,023 INFO L76 edCorrectnessWitness]: Location invariant before [L787-L787] 0 <= __unbuffered_cnt [2024-02-07 19:03:43,052 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:03:43,194 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-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2024-02-07 19:03:43,364 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:03:43,382 INFO L206 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 19:03:43,437 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-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 19:03:43,498 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:03:43,540 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:03:43,540 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:03:43 WrapperNode [2024-02-07 19:03:43,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:03:43,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:03:43,542 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:03:43,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:03:43,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:03:43" (1/1) ... [2024-02-07 19:03:43,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:03:43" (1/1) ... [2024-02-07 19:03:43,584 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 78 [2024-02-07 19:03:43,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:03:43,585 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:03:43,585 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:03:43,585 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:03:43,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:03:43" (1/1) ... [2024-02-07 19:03:43,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:03:43" (1/1) ... [2024-02-07 19:03:43,601 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:03:43" (1/1) ... [2024-02-07 19:03:43,638 INFO L175 MemorySlicer]: Split 5 memory accesses to 4 slices as follows [2, 1, 1, 1]. 40 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-02-07 19:03:43,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:03:43" (1/1) ... [2024-02-07 19:03:43,641 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:03:43" (1/1) ... [2024-02-07 19:03:43,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:03:43" (1/1) ... [2024-02-07 19:03:43,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:03:43" (1/1) ... [2024-02-07 19:03:43,661 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:03:43" (1/1) ... [2024-02-07 19:03:43,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:03:43" (1/1) ... [2024-02-07 19:03:43,676 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:03:43,677 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:03:43,677 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:03:43,677 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:03:43,678 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:03:43" (1/1) ... [2024-02-07 19:03:43,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:03:43,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:03:43,713 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) [2024-02-07 19:03:43,737 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 [2024-02-07 19:03:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:03:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:03:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:03:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 19:03:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 19:03:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:03:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:03:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:03:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-07 19:03:43,755 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-07 19:03:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-07 19:03:43,755 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-07 19:03:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-07 19:03:43,756 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-07 19:03:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:03:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:03:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:03:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 19:03:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 19:03:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:03:43,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:03:43,758 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 19:03:43,918 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:03:43,920 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:03:44,151 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:03:44,151 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:03:44,266 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:03:44,266 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 19:03:44,267 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:03:44 BoogieIcfgContainer [2024-02-07 19:03:44,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:03:44,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:03:44,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:03:44,272 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:03:44,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:03:42" (1/4) ... [2024-02-07 19:03:44,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13278e1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:03:44, skipping insertion in model container [2024-02-07 19:03:44,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:03:42" (2/4) ... [2024-02-07 19:03:44,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13278e1c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:03:44, skipping insertion in model container [2024-02-07 19:03:44,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:03:43" (3/4) ... [2024-02-07 19:03:44,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13278e1c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:03:44, skipping insertion in model container [2024-02-07 19:03:44,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:03:44" (4/4) ... [2024-02-07 19:03:44,276 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-02-07 19:03:44,294 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:03:44,294 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2024-02-07 19:03:44,294 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:03:44,350 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 19:03:44,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 61 transitions, 134 flow [2024-02-07 19:03:44,432 INFO L124 PetriNetUnfolderBase]: 1/58 cut-off events. [2024-02-07 19:03:44,433 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:03:44,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 186 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2024-02-07 19:03:44,437 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 61 transitions, 134 flow [2024-02-07 19:03:44,440 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2024-02-07 19:03:44,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:03:44,471 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;@5306cd01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:03:44,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-02-07 19:03:44,485 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:03:44,486 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-02-07 19:03:44,486 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:03:44,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:03:44,487 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-07 19:03:44,488 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 38 more)] === [2024-02-07 19:03:44,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:03:44,497 INFO L85 PathProgramCache]: Analyzing trace with hash 9824838, now seen corresponding path program 1 times [2024-02-07 19:03:44,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:03:44,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661027665] [2024-02-07 19:03:44,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:03:44,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:03:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:03:44,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:03:44,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:03:44,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661027665] [2024-02-07 19:03:44,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661027665] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:03:44,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:03:44,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:03:44,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998251432] [2024-02-07 19:03:44,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:03:44,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:03:44,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:03:44,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:03:44,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:03:44,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 61 [2024-02-07 19:03:44,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 58 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-02-07 19:03:44,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:03:44,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 61 [2024-02-07 19:03:44,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:03:46,246 INFO L124 PetriNetUnfolderBase]: 7229/11604 cut-off events. [2024-02-07 19:03:46,246 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-02-07 19:03:46,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21931 conditions, 11604 events. 7229/11604 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 652. Compared 85693 event pairs, 2889 based on Foata normal form. 322/8599 useless extension candidates. Maximal degree in co-relation 21920. Up to 6294 conditions per place. [2024-02-07 19:03:46,365 INFO L140 encePairwiseOnDemand]: 46/61 looper letters, 49 selfloop transitions, 2 changer transitions 0/65 dead transitions. [2024-02-07 19:03:46,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 65 transitions, 241 flow [2024-02-07 19:03:46,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:03:46,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:03:46,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2024-02-07 19:03:46,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6775956284153005 [2024-02-07 19:03:46,380 INFO L175 Difference]: Start difference. First operand has 67 places, 58 transitions, 125 flow. Second operand 3 states and 124 transitions. [2024-02-07 19:03:46,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 65 transitions, 241 flow [2024-02-07 19:03:46,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 65 transitions, 238 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-07 19:03:46,393 INFO L231 Difference]: Finished difference. Result has 56 places, 46 transitions, 106 flow [2024-02-07 19:03:46,395 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=56, PETRI_TRANSITIONS=46} [2024-02-07 19:03:46,399 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -11 predicate places. [2024-02-07 19:03:46,399 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 46 transitions, 106 flow [2024-02-07 19:03:46,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-02-07 19:03:46,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:03:46,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-07 19:03:46,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:03:46,401 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 38 more)] === [2024-02-07 19:03:46,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:03:46,401 INFO L85 PathProgramCache]: Analyzing trace with hash 850406550, now seen corresponding path program 1 times [2024-02-07 19:03:46,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:03:46,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946626598] [2024-02-07 19:03:46,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:03:46,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:03:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:03:46,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:03:46,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:03:46,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946626598] [2024-02-07 19:03:46,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946626598] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:03:46,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:03:46,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:03:46,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720750653] [2024-02-07 19:03:46,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:03:46,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:03:46,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:03:46,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:03:46,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:03:46,492 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 61 [2024-02-07 19:03:46,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 46 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-02-07 19:03:46,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:03:46,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 61 [2024-02-07 19:03:46,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:03:47,347 INFO L124 PetriNetUnfolderBase]: 6780/10634 cut-off events. [2024-02-07 19:03:47,347 INFO L125 PetriNetUnfolderBase]: For 537/537 co-relation queries the response was YES. [2024-02-07 19:03:47,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21278 conditions, 10634 events. 6780/10634 cut-off events. For 537/537 co-relation queries the response was YES. Maximal size of possible extension queue 602. Compared 77114 event pairs, 2336 based on Foata normal form. 0/7876 useless extension candidates. Maximal degree in co-relation 21267. Up to 6468 conditions per place. [2024-02-07 19:03:47,414 INFO L140 encePairwiseOnDemand]: 58/61 looper letters, 53 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2024-02-07 19:03:47,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 69 transitions, 269 flow [2024-02-07 19:03:47,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:03:47,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:03:47,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 107 transitions. [2024-02-07 19:03:47,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5846994535519126 [2024-02-07 19:03:47,416 INFO L175 Difference]: Start difference. First operand has 56 places, 46 transitions, 106 flow. Second operand 3 states and 107 transitions. [2024-02-07 19:03:47,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 69 transitions, 269 flow [2024-02-07 19:03:47,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 69 transitions, 263 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:03:47,419 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 110 flow [2024-02-07 19:03:47,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2024-02-07 19:03:47,420 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -10 predicate places. [2024-02-07 19:03:47,421 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 110 flow [2024-02-07 19:03:47,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-02-07 19:03:47,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:03:47,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:03:47,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 19:03:47,422 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 38 more)] === [2024-02-07 19:03:47,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:03:47,423 INFO L85 PathProgramCache]: Analyzing trace with hash 634352091, now seen corresponding path program 1 times [2024-02-07 19:03:47,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:03:47,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987028234] [2024-02-07 19:03:47,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:03:47,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:03:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:03:47,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:03:47,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:03:47,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987028234] [2024-02-07 19:03:47,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987028234] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:03:47,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:03:47,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:03:47,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988198783] [2024-02-07 19:03:47,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:03:47,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:03:47,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:03:47,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:03:47,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:03:47,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 61 [2024-02-07 19:03:47,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-02-07 19:03:47,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:03:47,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 61 [2024-02-07 19:03:47,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:03:48,276 INFO L124 PetriNetUnfolderBase]: 5187/7864 cut-off events. [2024-02-07 19:03:48,276 INFO L125 PetriNetUnfolderBase]: For 653/653 co-relation queries the response was YES. [2024-02-07 19:03:48,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16664 conditions, 7864 events. 5187/7864 cut-off events. For 653/653 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 49394 event pairs, 1639 based on Foata normal form. 0/6348 useless extension candidates. Maximal degree in co-relation 16652. Up to 6406 conditions per place. [2024-02-07 19:03:48,325 INFO L140 encePairwiseOnDemand]: 53/61 looper letters, 51 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2024-02-07 19:03:48,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 69 transitions, 278 flow [2024-02-07 19:03:48,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:03:48,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:03:48,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2024-02-07 19:03:48,331 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6010928961748634 [2024-02-07 19:03:48,331 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 110 flow. Second operand 3 states and 110 transitions. [2024-02-07 19:03:48,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 69 transitions, 278 flow [2024-02-07 19:03:48,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 69 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:03:48,334 INFO L231 Difference]: Finished difference. Result has 58 places, 49 transitions, 138 flow [2024-02-07 19:03:48,335 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=58, PETRI_TRANSITIONS=49} [2024-02-07 19:03:48,336 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -9 predicate places. [2024-02-07 19:03:48,337 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 49 transitions, 138 flow [2024-02-07 19:03:48,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-02-07 19:03:48,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:03:48,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:03:48,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 19:03:48,338 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 38 more)] === [2024-02-07 19:03:48,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:03:48,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1195691001, now seen corresponding path program 1 times [2024-02-07 19:03:48,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:03:48,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399531669] [2024-02-07 19:03:48,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:03:48,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:03:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:03:48,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:03:48,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:03:48,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399531669] [2024-02-07 19:03:48,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399531669] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:03:48,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:03:48,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:03:48,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977195676] [2024-02-07 19:03:48,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:03:48,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:03:48,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:03:48,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:03:48,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:03:48,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 61 [2024-02-07 19:03:48,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 49 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-02-07 19:03:48,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:03:48,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 61 [2024-02-07 19:03:48,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:03:49,007 INFO L124 PetriNetUnfolderBase]: 4897/7771 cut-off events. [2024-02-07 19:03:49,008 INFO L125 PetriNetUnfolderBase]: For 1135/1135 co-relation queries the response was YES. [2024-02-07 19:03:49,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17992 conditions, 7771 events. 4897/7771 cut-off events. For 1135/1135 co-relation queries the response was YES. Maximal size of possible extension queue 454. Compared 52604 event pairs, 2008 based on Foata normal form. 0/6539 useless extension candidates. Maximal degree in co-relation 17979. Up to 4768 conditions per place. [2024-02-07 19:03:49,127 INFO L140 encePairwiseOnDemand]: 58/61 looper letters, 56 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2024-02-07 19:03:49,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 72 transitions, 322 flow [2024-02-07 19:03:49,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:03:49,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:03:49,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-02-07 19:03:49,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5737704918032787 [2024-02-07 19:03:49,129 INFO L175 Difference]: Start difference. First operand has 58 places, 49 transitions, 138 flow. Second operand 3 states and 105 transitions. [2024-02-07 19:03:49,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 72 transitions, 322 flow [2024-02-07 19:03:49,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 72 transitions, 316 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:03:49,131 INFO L231 Difference]: Finished difference. Result has 60 places, 49 transitions, 142 flow [2024-02-07 19:03:49,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=60, PETRI_TRANSITIONS=49} [2024-02-07 19:03:49,132 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -7 predicate places. [2024-02-07 19:03:49,133 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 49 transitions, 142 flow [2024-02-07 19:03:49,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-02-07 19:03:49,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:03:49,133 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:03:49,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 19:03:49,134 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 38 more)] === [2024-02-07 19:03:49,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:03:49,134 INFO L85 PathProgramCache]: Analyzing trace with hash -319247849, now seen corresponding path program 1 times [2024-02-07 19:03:49,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:03:49,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717977305] [2024-02-07 19:03:49,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:03:49,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:03:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:03:49,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:03:49,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:03:49,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717977305] [2024-02-07 19:03:49,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717977305] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:03:49,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:03:49,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:03:49,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616411204] [2024-02-07 19:03:49,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:03:49,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:03:49,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:03:49,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:03:49,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:03:49,215 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 61 [2024-02-07 19:03:49,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-02-07 19:03:49,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:03:49,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 61 [2024-02-07 19:03:49,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:03:49,907 INFO L124 PetriNetUnfolderBase]: 4492/7126 cut-off events. [2024-02-07 19:03:49,907 INFO L125 PetriNetUnfolderBase]: For 1448/1448 co-relation queries the response was YES. [2024-02-07 19:03:49,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16858 conditions, 7126 events. 4492/7126 cut-off events. For 1448/1448 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 47487 event pairs, 2052 based on Foata normal form. 174/6299 useless extension candidates. Maximal degree in co-relation 16843. Up to 4216 conditions per place. [2024-02-07 19:03:49,958 INFO L140 encePairwiseOnDemand]: 59/61 looper letters, 58 selfloop transitions, 1 changer transitions 0/73 dead transitions. [2024-02-07 19:03:49,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 73 transitions, 330 flow [2024-02-07 19:03:49,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:03:49,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:03:49,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-02-07 19:03:49,959 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5792349726775956 [2024-02-07 19:03:49,960 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 142 flow. Second operand 3 states and 106 transitions. [2024-02-07 19:03:49,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 73 transitions, 330 flow [2024-02-07 19:03:49,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 73 transitions, 322 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-07 19:03:49,963 INFO L231 Difference]: Finished difference. Result has 58 places, 48 transitions, 134 flow [2024-02-07 19:03:49,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2024-02-07 19:03:49,964 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -9 predicate places. [2024-02-07 19:03:49,964 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 134 flow [2024-02-07 19:03:49,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-02-07 19:03:49,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:03:49,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:03:49,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-07 19:03:49,965 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 38 more)] === [2024-02-07 19:03:49,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:03:49,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1588326752, now seen corresponding path program 1 times [2024-02-07 19:03:49,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:03:49,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559772303] [2024-02-07 19:03:49,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:03:49,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:03:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:03:50,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:03:50,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:03:50,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559772303] [2024-02-07 19:03:50,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559772303] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:03:50,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:03:50,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:03:50,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208501583] [2024-02-07 19:03:50,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:03:50,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:03:50,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:03:50,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:03:50,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:03:50,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 61 [2024-02-07 19:03:50,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-02-07 19:03:50,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:03:50,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 61 [2024-02-07 19:03:50,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:03:50,648 INFO L124 PetriNetUnfolderBase]: 4492/7517 cut-off events. [2024-02-07 19:03:50,648 INFO L125 PetriNetUnfolderBase]: For 1418/1418 co-relation queries the response was YES. [2024-02-07 19:03:50,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16959 conditions, 7517 events. 4492/7517 cut-off events. For 1418/1418 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 53835 event pairs, 4200 based on Foata normal form. 0/6276 useless extension candidates. Maximal degree in co-relation 16946. Up to 6481 conditions per place. [2024-02-07 19:03:50,694 INFO L140 encePairwiseOnDemand]: 59/61 looper letters, 33 selfloop transitions, 1 changer transitions 0/47 dead transitions. [2024-02-07 19:03:50,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 47 transitions, 200 flow [2024-02-07 19:03:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:03:50,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:03:50,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-02-07 19:03:50,696 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4371584699453552 [2024-02-07 19:03:50,696 INFO L175 Difference]: Start difference. First operand has 58 places, 48 transitions, 134 flow. Second operand 3 states and 80 transitions. [2024-02-07 19:03:50,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 47 transitions, 200 flow [2024-02-07 19:03:50,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 47 transitions, 199 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:03:50,699 INFO L231 Difference]: Finished difference. Result has 58 places, 47 transitions, 133 flow [2024-02-07 19:03:50,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=58, PETRI_TRANSITIONS=47} [2024-02-07 19:03:50,702 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -9 predicate places. [2024-02-07 19:03:50,702 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 47 transitions, 133 flow [2024-02-07 19:03:50,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-02-07 19:03:50,703 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:03:50,703 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:03:50,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-07 19:03:50,703 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 38 more)] === [2024-02-07 19:03:50,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:03:50,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1627741922, now seen corresponding path program 1 times [2024-02-07 19:03:50,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:03:50,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32994294] [2024-02-07 19:03:50,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:03:50,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:03:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:03:50,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:03:50,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:03:50,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32994294] [2024-02-07 19:03:50,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32994294] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:03:50,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:03:50,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:03:50,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885926831] [2024-02-07 19:03:50,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:03:50,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:03:50,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:03:50,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:03:50,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:03:50,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 61 [2024-02-07 19:03:50,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-02-07 19:03:50,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:03:50,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 61 [2024-02-07 19:03:50,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:03:51,292 INFO L124 PetriNetUnfolderBase]: 4097/6654 cut-off events. [2024-02-07 19:03:51,293 INFO L125 PetriNetUnfolderBase]: For 1031/1031 co-relation queries the response was YES. [2024-02-07 19:03:51,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15220 conditions, 6654 events. 4097/6654 cut-off events. For 1031/1031 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 45356 event pairs, 1528 based on Foata normal form. 168/5871 useless extension candidates. Maximal degree in co-relation 15210. Up to 3695 conditions per place. [2024-02-07 19:03:51,348 INFO L140 encePairwiseOnDemand]: 59/61 looper letters, 52 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2024-02-07 19:03:51,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 66 transitions, 291 flow [2024-02-07 19:03:51,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:03:51,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:03:51,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-02-07 19:03:51,349 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.546448087431694 [2024-02-07 19:03:51,350 INFO L175 Difference]: Start difference. First operand has 58 places, 47 transitions, 133 flow. Second operand 3 states and 100 transitions. [2024-02-07 19:03:51,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 66 transitions, 291 flow [2024-02-07 19:03:51,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 66 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:03:51,352 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 128 flow [2024-02-07 19:03:51,352 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2024-02-07 19:03:51,353 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -10 predicate places. [2024-02-07 19:03:51,353 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 128 flow [2024-02-07 19:03:51,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-02-07 19:03:51,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:03:51,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:03:51,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-07 19:03:51,354 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting P2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 38 more)] === [2024-02-07 19:03:51,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:03:51,355 INFO L85 PathProgramCache]: Analyzing trace with hash 609209791, now seen corresponding path program 1 times [2024-02-07 19:03:51,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:03:51,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125201373] [2024-02-07 19:03:51,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:03:51,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:03:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:03:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:03:51,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:03:51,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125201373] [2024-02-07 19:03:51,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125201373] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:03:51,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:03:51,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:03:51,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610103030] [2024-02-07 19:03:51,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:03:51,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:03:51,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:03:51,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:03:51,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:03:51,435 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 61 [2024-02-07 19:03:51,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-02-07 19:03:51,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:03:51,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 61 [2024-02-07 19:03:51,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:03:51,901 INFO L124 PetriNetUnfolderBase]: 3702/5900 cut-off events. [2024-02-07 19:03:51,901 INFO L125 PetriNetUnfolderBase]: For 961/961 co-relation queries the response was YES. [2024-02-07 19:03:51,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13588 conditions, 5900 events. 3702/5900 cut-off events. For 961/961 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 37777 event pairs, 1341 based on Foata normal form. 168/5215 useless extension candidates. Maximal degree in co-relation 13579. Up to 3799 conditions per place. [2024-02-07 19:03:51,946 INFO L140 encePairwiseOnDemand]: 59/61 looper letters, 53 selfloop transitions, 1 changer transitions 0/67 dead transitions. [2024-02-07 19:03:51,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 67 transitions, 295 flow [2024-02-07 19:03:51,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:03:51,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:03:51,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2024-02-07 19:03:51,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5519125683060109 [2024-02-07 19:03:51,948 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 128 flow. Second operand 3 states and 101 transitions. [2024-02-07 19:03:51,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 67 transitions, 295 flow [2024-02-07 19:03:51,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 67 transitions, 291 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:03:51,953 INFO L231 Difference]: Finished difference. Result has 56 places, 45 transitions, 123 flow [2024-02-07 19:03:51,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=56, PETRI_TRANSITIONS=45} [2024-02-07 19:03:51,956 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -11 predicate places. [2024-02-07 19:03:51,956 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 123 flow [2024-02-07 19:03:51,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-02-07 19:03:51,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:03:51,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:03:51,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-07 19:03:51,957 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 38 more)] === [2024-02-07 19:03:51,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:03:51,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1668609215, now seen corresponding path program 1 times [2024-02-07 19:03:51,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:03:51,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220137634] [2024-02-07 19:03:51,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:03:51,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:03:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:03:52,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:03:52,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:03:52,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220137634] [2024-02-07 19:03:52,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220137634] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:03:52,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:03:52,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:03:52,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769485372] [2024-02-07 19:03:52,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:03:52,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:03:52,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:03:52,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:03:52,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:03:52,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 61 [2024-02-07 19:03:52,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2024-02-07 19:03:52,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:03:52,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 61 [2024-02-07 19:03:52,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:03:52,533 INFO L124 PetriNetUnfolderBase]: 3493/6287 cut-off events. [2024-02-07 19:03:52,533 INFO L125 PetriNetUnfolderBase]: For 825/825 co-relation queries the response was YES. [2024-02-07 19:03:52,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13692 conditions, 6287 events. 3493/6287 cut-off events. For 825/825 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 46269 event pairs, 597 based on Foata normal form. 179/5385 useless extension candidates. Maximal degree in co-relation 13684. Up to 3001 conditions per place. [2024-02-07 19:03:52,569 INFO L140 encePairwiseOnDemand]: 55/61 looper letters, 54 selfloop transitions, 5 changer transitions 0/72 dead transitions. [2024-02-07 19:03:52,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 72 transitions, 319 flow [2024-02-07 19:03:52,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:03:52,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:03:52,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2024-02-07 19:03:52,571 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5122950819672131 [2024-02-07 19:03:52,571 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 123 flow. Second operand 4 states and 125 transitions. [2024-02-07 19:03:52,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 72 transitions, 319 flow [2024-02-07 19:03:52,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 72 transitions, 316 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:03:52,584 INFO L231 Difference]: Finished difference. Result has 60 places, 46 transitions, 148 flow [2024-02-07 19:03:52,584 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=60, PETRI_TRANSITIONS=46} [2024-02-07 19:03:52,586 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -7 predicate places. [2024-02-07 19:03:52,586 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 46 transitions, 148 flow [2024-02-07 19:03:52,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2024-02-07 19:03:52,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:03:52,586 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:03:52,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-02-07 19:03:52,587 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 38 more)] === [2024-02-07 19:03:52,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:03:52,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1617066841, now seen corresponding path program 1 times [2024-02-07 19:03:52,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:03:52,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979504810] [2024-02-07 19:03:52,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:03:52,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:03:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:03:52,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:03:52,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:03:52,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979504810] [2024-02-07 19:03:52,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979504810] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:03:52,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:03:52,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:03:52,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839275266] [2024-02-07 19:03:52,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:03:52,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:03:52,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:03:52,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:03:52,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:03:52,628 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 61 [2024-02-07 19:03:52,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 46 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-02-07 19:03:52,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:03:52,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 61 [2024-02-07 19:03:52,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:03:52,912 INFO L124 PetriNetUnfolderBase]: 2080/3786 cut-off events. [2024-02-07 19:03:52,912 INFO L125 PetriNetUnfolderBase]: For 1165/1177 co-relation queries the response was YES. [2024-02-07 19:03:52,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8640 conditions, 3786 events. 2080/3786 cut-off events. For 1165/1177 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 25273 event pairs, 864 based on Foata normal form. 98/3573 useless extension candidates. Maximal degree in co-relation 8629. Up to 2834 conditions per place. [2024-02-07 19:03:52,932 INFO L140 encePairwiseOnDemand]: 54/61 looper letters, 35 selfloop transitions, 3 changer transitions 2/53 dead transitions. [2024-02-07 19:03:52,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 53 transitions, 241 flow [2024-02-07 19:03:52,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:03:52,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:03:52,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2024-02-07 19:03:52,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5191256830601093 [2024-02-07 19:03:52,934 INFO L175 Difference]: Start difference. First operand has 60 places, 46 transitions, 148 flow. Second operand 3 states and 95 transitions. [2024-02-07 19:03:52,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 53 transitions, 241 flow [2024-02-07 19:03:52,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 235 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:03:52,936 INFO L231 Difference]: Finished difference. Result has 56 places, 40 transitions, 126 flow [2024-02-07 19:03:52,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=56, PETRI_TRANSITIONS=40} [2024-02-07 19:03:52,937 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -11 predicate places. [2024-02-07 19:03:52,937 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 40 transitions, 126 flow [2024-02-07 19:03:52,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-02-07 19:03:52,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:03:52,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:03:52,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-02-07 19:03:52,938 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 38 more)] === [2024-02-07 19:03:52,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:03:52,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1685414983, now seen corresponding path program 1 times [2024-02-07 19:03:52,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:03:52,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088987678] [2024-02-07 19:03:52,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:03:52,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:03:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:03:53,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:03:53,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:03:53,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088987678] [2024-02-07 19:03:53,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088987678] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:03:53,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:03:53,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 19:03:53,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666717548] [2024-02-07 19:03:53,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:03:53,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-07 19:03:53,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:03:53,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-07 19:03:53,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-02-07 19:03:53,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 61 [2024-02-07 19:03:53,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 40 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2024-02-07 19:03:53,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:03:53,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 61 [2024-02-07 19:03:53,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:03:53,273 INFO L124 PetriNetUnfolderBase]: 1159/2147 cut-off events. [2024-02-07 19:03:53,273 INFO L125 PetriNetUnfolderBase]: For 765/765 co-relation queries the response was YES. [2024-02-07 19:03:53,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4955 conditions, 2147 events. 1159/2147 cut-off events. For 765/765 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 12366 event pairs, 149 based on Foata normal form. 98/2102 useless extension candidates. Maximal degree in co-relation 4945. Up to 641 conditions per place. [2024-02-07 19:03:53,283 INFO L140 encePairwiseOnDemand]: 55/61 looper letters, 57 selfloop transitions, 8 changer transitions 1/79 dead transitions. [2024-02-07 19:03:53,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 79 transitions, 365 flow [2024-02-07 19:03:53,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:03:53,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:03:53,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 148 transitions. [2024-02-07 19:03:53,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4852459016393443 [2024-02-07 19:03:53,285 INFO L175 Difference]: Start difference. First operand has 56 places, 40 transitions, 126 flow. Second operand 5 states and 148 transitions. [2024-02-07 19:03:53,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 79 transitions, 365 flow [2024-02-07 19:03:53,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 79 transitions, 349 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-02-07 19:03:53,288 INFO L231 Difference]: Finished difference. Result has 58 places, 43 transitions, 159 flow [2024-02-07 19:03:53,289 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=159, PETRI_PLACES=58, PETRI_TRANSITIONS=43} [2024-02-07 19:03:53,289 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -9 predicate places. [2024-02-07 19:03:53,289 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 43 transitions, 159 flow [2024-02-07 19:03:53,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2024-02-07 19:03:53,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:03:53,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:03:53,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-02-07 19:03:53,290 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 38 more)] === [2024-02-07 19:03:53,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:03:53,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2010517764, now seen corresponding path program 1 times [2024-02-07 19:03:53,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:03:53,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990362697] [2024-02-07 19:03:53,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:03:53,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:03:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:03:53,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:03:53,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:03:53,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990362697] [2024-02-07 19:03:53,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990362697] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:03:53,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:03:53,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-07 19:03:53,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259142307] [2024-02-07 19:03:53,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:03:53,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-07 19:03:53,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:03:53,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-07 19:03:53,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-02-07 19:03:53,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 61 [2024-02-07 19:03:53,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 43 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-02-07 19:03:53,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:03:53,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 61 [2024-02-07 19:03:53,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:03:53,629 INFO L124 PetriNetUnfolderBase]: 700/1202 cut-off events. [2024-02-07 19:03:53,629 INFO L125 PetriNetUnfolderBase]: For 872/872 co-relation queries the response was YES. [2024-02-07 19:03:53,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3240 conditions, 1202 events. 700/1202 cut-off events. For 872/872 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5436 event pairs, 128 based on Foata normal form. 44/1211 useless extension candidates. Maximal degree in co-relation 3229. Up to 378 conditions per place. [2024-02-07 19:03:53,635 INFO L140 encePairwiseOnDemand]: 55/61 looper letters, 49 selfloop transitions, 11 changer transitions 1/74 dead transitions. [2024-02-07 19:03:53,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 74 transitions, 359 flow [2024-02-07 19:03:53,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-07 19:03:53,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-02-07 19:03:53,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 159 transitions. [2024-02-07 19:03:53,636 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4344262295081967 [2024-02-07 19:03:53,636 INFO L175 Difference]: Start difference. First operand has 58 places, 43 transitions, 159 flow. Second operand 6 states and 159 transitions. [2024-02-07 19:03:53,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 74 transitions, 359 flow [2024-02-07 19:03:53,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 74 transitions, 334 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-02-07 19:03:53,642 INFO L231 Difference]: Finished difference. Result has 61 places, 43 transitions, 173 flow [2024-02-07 19:03:53,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=173, PETRI_PLACES=61, PETRI_TRANSITIONS=43} [2024-02-07 19:03:53,643 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -6 predicate places. [2024-02-07 19:03:53,643 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 43 transitions, 173 flow [2024-02-07 19:03:53,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-02-07 19:03:53,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:03:53,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:03:53,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-02-07 19:03:53,644 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 38 more)] === [2024-02-07 19:03:53,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:03:53,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1375761116, now seen corresponding path program 1 times [2024-02-07 19:03:53,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:03:53,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434921046] [2024-02-07 19:03:53,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:03:53,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:03:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:03:53,669 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 19:03:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:03:53,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 19:03:53,712 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 19:03:53,713 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 41 remaining) [2024-02-07 19:03:53,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 41 remaining) [2024-02-07 19:03:53,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 41 remaining) [2024-02-07 19:03:53,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 41 remaining) [2024-02-07 19:03:53,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err3ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 41 remaining) [2024-02-07 19:03:53,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err4ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 41 remaining) [2024-02-07 19:03:53,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 41 remaining) [2024-02-07 19:03:53,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 41 remaining) [2024-02-07 19:03:53,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 41 remaining) [2024-02-07 19:03:53,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 41 remaining) [2024-02-07 19:03:53,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 41 remaining) [2024-02-07 19:03:53,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 41 remaining) [2024-02-07 19:03:53,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 41 remaining) [2024-02-07 19:03:53,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 41 remaining) [2024-02-07 19:03:53,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 41 remaining) [2024-02-07 19:03:53,720 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 41 remaining) [2024-02-07 19:03:53,720 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 41 remaining) [2024-02-07 19:03:53,720 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 41 remaining) [2024-02-07 19:03:53,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 41 remaining) [2024-02-07 19:03:53,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 41 remaining) [2024-02-07 19:03:53,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 41 remaining) [2024-02-07 19:03:53,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 41 remaining) [2024-02-07 19:03:53,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (18 of 41 remaining) [2024-02-07 19:03:53,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 41 remaining) [2024-02-07 19:03:53,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 41 remaining) [2024-02-07 19:03:53,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 41 remaining) [2024-02-07 19:03:53,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 41 remaining) [2024-02-07 19:03:53,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 41 remaining) [2024-02-07 19:03:53,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 41 remaining) [2024-02-07 19:03:53,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err3ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 41 remaining) [2024-02-07 19:03:53,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err4ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 41 remaining) [2024-02-07 19:03:53,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 41 remaining) [2024-02-07 19:03:53,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 41 remaining) [2024-02-07 19:03:53,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 41 remaining) [2024-02-07 19:03:53,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 41 remaining) [2024-02-07 19:03:53,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 41 remaining) [2024-02-07 19:03:53,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 41 remaining) [2024-02-07 19:03:53,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 41 remaining) [2024-02-07 19:03:53,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 41 remaining) [2024-02-07 19:03:53,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 41 remaining) [2024-02-07 19:03:53,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 41 remaining) [2024-02-07 19:03:53,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-02-07 19:03:53,725 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:03:53,731 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 19:03:53,731 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 19:03:53,788 INFO L503 ceAbstractionStarter]: Automizer considered 22 witness invariants [2024-02-07 19:03:53,793 INFO L504 ceAbstractionStarter]: WitnessConsidered=22 [2024-02-07 19:03:53,794 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:03:53 BasicIcfg [2024-02-07 19:03:53,795 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 19:03:53,795 INFO L158 Benchmark]: Toolchain (without parser) took 10872.74ms. Allocated memory was 155.2MB in the beginning and 1.1GB in the end (delta: 897.6MB). Free memory was 77.7MB in the beginning and 302.0MB in the end (delta: -224.3MB). Peak memory consumption was 676.4MB. Max. memory is 16.1GB. [2024-02-07 19:03:53,795 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 155.2MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:03:53,796 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 155.2MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:03:53,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.32ms. Allocated memory was 155.2MB in the beginning and 209.7MB in the end (delta: 54.5MB). Free memory was 77.4MB in the beginning and 170.8MB in the end (delta: -93.4MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2024-02-07 19:03:53,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.79ms. Allocated memory is still 209.7MB. Free memory was 170.8MB in the beginning and 168.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:03:53,797 INFO L158 Benchmark]: Boogie Preprocessor took 91.19ms. Allocated memory is still 209.7MB. Free memory was 168.7MB in the beginning and 166.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:03:53,797 INFO L158 Benchmark]: RCFGBuilder took 590.44ms. Allocated memory is still 209.7MB. Free memory was 165.5MB in the beginning and 132.0MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-02-07 19:03:53,797 INFO L158 Benchmark]: TraceAbstraction took 9525.59ms. Allocated memory was 209.7MB in the beginning and 1.1GB in the end (delta: 843.1MB). Free memory was 130.9MB in the beginning and 302.0MB in the end (delta: -171.1MB). Peak memory consumption was 673.0MB. Max. memory is 16.1GB. [2024-02-07 19:03:53,800 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 155.2MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.17ms. Allocated memory is still 155.2MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 616.32ms. Allocated memory was 155.2MB in the beginning and 209.7MB in the end (delta: 54.5MB). Free memory was 77.4MB in the beginning and 170.8MB in the end (delta: -93.4MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.79ms. Allocated memory is still 209.7MB. Free memory was 170.8MB in the beginning and 168.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.19ms. Allocated memory is still 209.7MB. Free memory was 168.7MB in the beginning and 166.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 590.44ms. Allocated memory is still 209.7MB. Free memory was 165.5MB in the beginning and 132.0MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9525.59ms. Allocated memory was 209.7MB in the beginning and 1.1GB in the end (delta: 843.1MB). Free memory was 130.9MB in the beginning and 302.0MB in the end (delta: -171.1MB). Peak memory consumption was 673.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 793]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p2_EAX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L723] 0 int z = 0; [L780] 0 pthread_t t1943; [L781] FCALL, FORK 0 pthread_create(&t1943, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1943={5:0}, x=0, y=0, z=0] [L727] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[z]],BinaryExpression[COMPLEQ,IdentifierExpression[z],IntegerLiteral[1]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[z],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[z],IntegerLiteral[1]]]]]] [L727] 1 __unbuffered_p0_EAX = z [L728] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[__unbuffered_p0_EAX]],BinaryExpression[COMPLEQ,IdentifierExpression[__unbuffered_p0_EAX],IntegerLiteral[1]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[__unbuffered_p0_EAX],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[__unbuffered_p0_EAX],IntegerLiteral[1]]]]]] VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0] [L782] 0 pthread_t t1944; [L783] FCALL, FORK 0 pthread_create(&t1944, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1943={5:0}, t1944={6:0}, x=0, y=0, z=0] [L742] 2 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[x]],BinaryExpression[COMPLEQ,IdentifierExpression[x],IntegerLiteral[1]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[1]]]]]] [L742] 2 __unbuffered_p1_EAX = x [L743] 2 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[__unbuffered_p1_EAX]],BinaryExpression[COMPLEQ,IdentifierExpression[__unbuffered_p1_EAX],IntegerLiteral[1]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[__unbuffered_p1_EAX],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[__unbuffered_p1_EAX],IntegerLiteral[1]]]]]] VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0] [L784] 0 pthread_t t1945; [L730] 1 x = 1 [L731] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[1]]]] VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=1, y=0, z=0] [L785] FCALL, FORK 0 pthread_create(&t1945, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1943={5:0}, t1944={6:0}, t1945={3:0}, x=1, y=0, z=0] [L757] 3 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[y]],BinaryExpression[COMPLEQ,IdentifierExpression[y],IntegerLiteral[1]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[1]]]]]] [L757] 3 __unbuffered_p2_EAX = y [L758] 3 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[__unbuffered_p2_EAX]],BinaryExpression[COMPLEQ,IdentifierExpression[__unbuffered_p2_EAX],IntegerLiteral[1]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[__unbuffered_p2_EAX],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[__unbuffered_p2_EAX],IntegerLiteral[1]]]]]] VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=1, y=0, z=0] [L745] 2 y = 1 [L746] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[1]]]] VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=1, y=1, z=0] [L760] 3 z = 1 [L761] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[z],IntegerLiteral[1]]]] VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=1, y=1, z=1] [L735] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[__unbuffered_cnt]]]] [L735] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L736] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[1],IdentifierExpression[__unbuffered_cnt]]]] VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=1, y=1, z=1] [L750] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[__unbuffered_cnt]]]] [L750] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L751] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[1],IdentifierExpression[__unbuffered_cnt]]]] VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=1, y=1, z=1] [L765] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[__unbuffered_cnt]]]] [L765] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L766] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[1],IdentifierExpression[__unbuffered_cnt]]]] VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=1, y=1, z=1] [L787] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[__unbuffered_cnt]]]] [L787] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L788] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[main$tmp_guard0],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[main$tmp_guard0],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]] VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1943={5:0}, t1944={6:0}, t1945={3:0}, x=1, y=1, z=1] [L789] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[main$tmp_guard0],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[main$tmp_guard0],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]] [L789] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L789] RET 0 assume_abort_if_not(main$tmp_guard0) [L793] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[__unbuffered_p2_EAX]],BinaryExpression[COMPLEQ,IdentifierExpression[__unbuffered_p2_EAX],IntegerLiteral[1]]],BinaryExpression[COMPEQ,IdentifierExpression[__unbuffered_p0_EAX],IntegerLiteral[1]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[__unbuffered_p1_EAX],IntegerLiteral[1]],BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[__unbuffered_p1_EAX]],BinaryExpression[COMPLEQ,IdentifierExpression[__unbuffered_p1_EAX],IntegerLiteral[1]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[__unbuffered_p1_EAX],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[__unbuffered_p1_EAX],IntegerLiteral[1]]]]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[__unbuffered_p2_EAX],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[__unbuffered_p2_EAX],IntegerLiteral[1]]]]]] VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1943={5:0}, t1944={6:0}, t1945={3:0}, x=1, y=1, z=1] - UnprovableResult [Line: 727]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 728]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 731]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 735]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 736]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 742]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 743]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 746]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 751]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 757]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 765]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 787]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 794]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 795]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 785]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 100 locations, 41 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.3s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 425 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 421 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 784 IncrementalHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 2 mSDtfsCounter, 784 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173occurred in iteration=12, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 284 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-02-07 19:03:53,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE