./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 59af5db6 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/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe028_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-dev-59af5db-m [2024-02-02 09:14:36,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:14:36,745 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:14:36,750 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:14:36,751 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:14:36,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:14:36,777 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:14:36,778 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:14:36,778 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:14:36,782 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:14:36,782 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:14:36,782 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:14:36,783 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:14:36,784 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:14:36,784 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:14:36,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:14:36,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:14:36,785 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:14:36,785 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:14:36,785 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:14:36,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:14:36,786 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:14:36,786 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:14:36,786 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:14:36,786 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:14:36,786 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:14:36,787 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:14:36,787 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:14:36,787 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:14:36,787 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:14:36,788 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:14:36,788 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:14:36,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:14:36,789 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:14:36,789 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:14:36,789 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:14:36,789 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:14:36,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:14:36,790 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:14:36,790 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:14:36,790 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:14:36,790 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:14:36,790 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:14:36,790 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:14:37,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:14:37,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:14:37,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:14:37,036 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:14:37,037 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:14:37,037 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.yml/witness.yml [2024-02-02 09:14:37,277 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:14:37,278 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:14:37,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-02-02 09:14:38,384 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:14:38,565 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:14:38,566 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-02-02 09:14:38,583 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74281b6d4/bb650b8e4f7d406f87c79d58dff1979f/FLAG49e53ab3a [2024-02-02 09:14:38,598 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74281b6d4/bb650b8e4f7d406f87c79d58dff1979f [2024-02-02 09:14:38,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:14:38,599 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:14:38,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:14:38,602 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:14:38,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:14:38,606 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:14:37" (1/2) ... [2024-02-02 09:14:38,607 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@501e405 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:14:38, skipping insertion in model container [2024-02-02 09:14:38,607 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:14:37" (1/2) ... [2024-02-02 09:14:38,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3de9160c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:14:38, skipping insertion in model container [2024-02-02 09:14:38,609 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:14:38" (2/2) ... [2024-02-02 09:14:38,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@501e405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:38, skipping insertion in model container [2024-02-02 09:14:38,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:14:38" (2/2) ... [2024-02-02 09:14:38,610 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:14:38,863 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:14:38,867 INFO L101 nessWitnessExtractor]: Location invariant before [L759-L759] (unsigned long )arg == 0UL [2024-02-02 09:14:38,868 INFO L101 nessWitnessExtractor]: Location invariant before [L724-L724] (unsigned long )arg == 0UL [2024-02-02 09:14:38,868 INFO L101 nessWitnessExtractor]: Location invariant before [L731-L731] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,868 INFO L101 nessWitnessExtractor]: Location invariant before [L758-L758] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,868 INFO L101 nessWitnessExtractor]: Location invariant before [L729-L729] (unsigned long )arg == 0UL [2024-02-02 09:14:38,868 INFO L101 nessWitnessExtractor]: Location invariant before [L785-L785] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,869 INFO L101 nessWitnessExtractor]: Location invariant before [L753-L753] (unsigned long )arg == 0UL [2024-02-02 09:14:38,869 INFO L101 nessWitnessExtractor]: Location invariant before [L727-L727] (unsigned long )arg == 0UL [2024-02-02 09:14:38,869 INFO L101 nessWitnessExtractor]: Location invariant before [L730-L730] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,870 INFO L101 nessWitnessExtractor]: Location invariant before [L784-L784] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,870 INFO L101 nessWitnessExtractor]: Location invariant before [L754-L754] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,870 INFO L101 nessWitnessExtractor]: Location invariant before [L763-L763] ((((((((((((((((((0 <= __unbuffered_p0_EAX) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (1 <= __unbuffered_cnt)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,870 INFO L101 nessWitnessExtractor]: Location invariant before [L734-L734] (unsigned long )arg == 0UL [2024-02-02 09:14:38,870 INFO L101 nessWitnessExtractor]: Location invariant before [L764-L764] (unsigned long )arg == 0UL [2024-02-02 09:14:38,870 INFO L101 nessWitnessExtractor]: Location invariant before [L790-L790] (((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && (__unbuffered_p0_EAX == 0)) && (__unbuffered_p2_EAX == 1 || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,870 INFO L101 nessWitnessExtractor]: Location invariant before [L749-L749] (unsigned long )arg == 0UL [2024-02-02 09:14:38,871 INFO L101 nessWitnessExtractor]: Location invariant before [L748-L748] ((((((((((((((((((0 <= __unbuffered_p0_EAX) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (1 <= __unbuffered_cnt)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,871 INFO L101 nessWitnessExtractor]: Location invariant before [L757-L757] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,871 INFO L101 nessWitnessExtractor]: Location invariant before [L761-L761] (unsigned long )arg == 0UL [2024-02-02 09:14:38,871 INFO L101 nessWitnessExtractor]: Location invariant before [L737-L737] (unsigned long )arg == 0UL [2024-02-02 09:14:38,871 INFO L101 nessWitnessExtractor]: Location invariant before [L744-L744] (unsigned long )arg == 0UL [2024-02-02 09:14:38,872 INFO L101 nessWitnessExtractor]: Location invariant before [L756-L756] (unsigned long )arg == 0UL [2024-02-02 09:14:38,872 INFO L101 nessWitnessExtractor]: Location invariant before [L742-L742] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,872 INFO L101 nessWitnessExtractor]: Location invariant before [L725-L725] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,872 INFO L101 nessWitnessExtractor]: Location invariant before [L735-L735] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,872 INFO L101 nessWitnessExtractor]: Location invariant before [L733-L733] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,872 INFO L101 nessWitnessExtractor]: Location invariant before [L728-L728] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,873 INFO L101 nessWitnessExtractor]: Location invariant before [L741-L741] (unsigned long )arg == 0UL [2024-02-02 09:14:38,873 INFO L101 nessWitnessExtractor]: Location invariant before [L788-L788] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,873 INFO L101 nessWitnessExtractor]: Location invariant before [L736-L736] ((((((((((((((((((0 <= __unbuffered_p0_EAX) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (1 <= __unbuffered_cnt)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,873 INFO L101 nessWitnessExtractor]: Location invariant before [L743-L743] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (y <= 1)) && (x == 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,873 INFO L101 nessWitnessExtractor]: Location invariant before [L732-L732] (unsigned long )arg == 0UL [2024-02-02 09:14:38,873 INFO L101 nessWitnessExtractor]: Location invariant before [L726-L726] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y == 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1) [2024-02-02 09:14:38,873 INFO L101 nessWitnessExtractor]: Location invariant before [L745-L745] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,874 INFO L101 nessWitnessExtractor]: Location invariant before [L762-L762] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,874 INFO L101 nessWitnessExtractor]: Location invariant before [L791-L791] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,874 INFO L101 nessWitnessExtractor]: Location invariant before [L746-L746] (unsigned long )arg == 0UL [2024-02-02 09:14:38,874 INFO L101 nessWitnessExtractor]: Location invariant before [L747-L747] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,876 INFO L101 nessWitnessExtractor]: Location invariant before [L755-L755] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,876 INFO L101 nessWitnessExtractor]: Location invariant before [L760-L760] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= __unbuffered_p2_EBX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EBX <= 1)) && (x <= 1)) && (y <= 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (y == 0 || y == 1) [2024-02-02 09:14:38,876 INFO L101 nessWitnessExtractor]: Location invariant before [L18-L18] ((((expression == 1) && (expression == 0)) && (0 <= expression)) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-02 09:14:38,876 INFO L101 nessWitnessExtractor]: Location invariant before [L778-L778] (((((((__unbuffered_cnt == 0) && (__unbuffered_p0_EAX == 0)) && (__unbuffered_p2_EAX == 0)) && (__unbuffered_p2_EBX == 0)) && (main$tmp_guard0 == (_Bool)0)) && (main$tmp_guard1 == (_Bool)0)) && (x == 0)) && (y == 0) [2024-02-02 09:14:38,920 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:14:39,067 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/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-02-02 09:14:39,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:14:39,221 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:14:39,230 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/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-02-02 09:14:39,231 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int expression) { if (!expression) { ERROR: {reach_error();abort();} }; return; } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local 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 Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-02 09:14:39,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:14:39,415 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:14:39,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:39 WrapperNode [2024-02-02 09:14:39,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:14:39,417 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:14:39,417 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:14:39,417 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:14:39,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:39" (1/1) ... [2024-02-02 09:14:39,449 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:39" (1/1) ... [2024-02-02 09:14:39,473 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2024-02-02 09:14:39,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:14:39,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:14:39,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:14:39,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:14:39,482 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:39" (1/1) ... [2024-02-02 09:14:39,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:39" (1/1) ... [2024-02-02 09:14:39,486 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:39" (1/1) ... [2024-02-02 09:14:39,514 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]. [2024-02-02 09:14:39,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:39" (1/1) ... [2024-02-02 09:14:39,515 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:39" (1/1) ... [2024-02-02 09:14:39,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:39" (1/1) ... [2024-02-02 09:14:39,544 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:39" (1/1) ... [2024-02-02 09:14:39,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:39" (1/1) ... [2024-02-02 09:14:39,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:39" (1/1) ... [2024-02-02 09:14:39,551 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:14:39,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:14:39,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:14:39,552 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:14:39,553 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:39" (1/1) ... [2024-02-02 09:14:39,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:14:39,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:14:39,592 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) [2024-02-02 09:14:39,595 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 [2024-02-02 09:14:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:14:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:14:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:14:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:14:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-02 09:14:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:14:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:14:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:14:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-02 09:14:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-02 09:14:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-02 09:14:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-02 09:14:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-02 09:14:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-02 09:14:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:14:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:14:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:14:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:14:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-02 09:14:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:14:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:14:39,633 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:14:39,731 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:14:39,733 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:14:40,274 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:14:40,275 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:14:40,442 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:14:40,442 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-02 09:14:40,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:14:40 BoogieIcfgContainer [2024-02-02 09:14:40,444 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:14:40,446 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:14:40,446 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:14:40,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:14:40,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:14:37" (1/4) ... [2024-02-02 09:14:40,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab3935d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:14:40, skipping insertion in model container [2024-02-02 09:14:40,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:14:38" (2/4) ... [2024-02-02 09:14:40,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab3935d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:14:40, skipping insertion in model container [2024-02-02 09:14:40,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:39" (3/4) ... [2024-02-02 09:14:40,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab3935d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:14:40, skipping insertion in model container [2024-02-02 09:14:40,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:14:40" (4/4) ... [2024-02-02 09:14:40,453 INFO L112 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-02-02 09:14:40,467 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:14:40,467 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-02-02 09:14:40,467 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:14:40,582 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-02 09:14:40,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 92 transitions, 196 flow [2024-02-02 09:14:40,660 INFO L124 PetriNetUnfolderBase]: 1/89 cut-off events. [2024-02-02 09:14:40,660 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:14:40,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 1/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 366 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2024-02-02 09:14:40,665 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 92 transitions, 196 flow [2024-02-02 09:14:40,668 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 89 transitions, 187 flow [2024-02-02 09:14:40,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:14:40,686 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;@1811ea58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:14:40,687 INFO L358 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2024-02-02 09:14:40,692 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:14:40,692 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:14:40,693 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:14:40,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:14:40,694 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:14:40,694 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 77 more)] === [2024-02-02 09:14:40,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:14:40,698 INFO L85 PathProgramCache]: Analyzing trace with hash 12722, now seen corresponding path program 1 times [2024-02-02 09:14:40,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:14:40,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970349483] [2024-02-02 09:14:40,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:14:40,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:14:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:14:41,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:14:41,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:14:41,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970349483] [2024-02-02 09:14:41,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970349483] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:14:41,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:14:41,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:14:41,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990525740] [2024-02-02 09:14:41,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:14:41,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:14:41,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:14:41,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:14:41,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:14:41,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 92 [2024-02-02 09:14:41,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 89 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-02-02 09:14:41,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:14:41,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 92 [2024-02-02 09:14:41,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:14:46,049 INFO L124 PetriNetUnfolderBase]: 27063/42790 cut-off events. [2024-02-02 09:14:46,050 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2024-02-02 09:14:46,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80598 conditions, 42790 events. 27063/42790 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 2056. Compared 375373 event pairs, 15279 based on Foata normal form. 960/27004 useless extension candidates. Maximal degree in co-relation 80585. Up to 37317 conditions per place. [2024-02-02 09:14:46,372 INFO L140 encePairwiseOnDemand]: 74/92 looper letters, 58 selfloop transitions, 4 changer transitions 0/95 dead transitions. [2024-02-02 09:14:46,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 95 transitions, 329 flow [2024-02-02 09:14:46,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:14:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:14:46,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 190 transitions. [2024-02-02 09:14:46,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6884057971014492 [2024-02-02 09:14:46,385 INFO L175 Difference]: Start difference. First operand has 98 places, 89 transitions, 187 flow. Second operand 3 states and 190 transitions. [2024-02-02 09:14:46,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 95 transitions, 329 flow [2024-02-02 09:14:46,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 95 transitions, 324 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-02 09:14:46,394 INFO L231 Difference]: Finished difference. Result has 87 places, 80 transitions, 188 flow [2024-02-02 09:14:46,396 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=87, PETRI_TRANSITIONS=80} [2024-02-02 09:14:46,398 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -11 predicate places. [2024-02-02 09:14:46,399 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 80 transitions, 188 flow [2024-02-02 09:14:46,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-02-02 09:14:46,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:14:46,402 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:14:46,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:14:46,406 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 77 more)] === [2024-02-02 09:14:46,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:14:46,407 INFO L85 PathProgramCache]: Analyzing trace with hash 379500329, now seen corresponding path program 1 times [2024-02-02 09:14:46,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:14:46,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269037587] [2024-02-02 09:14:46,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:14:46,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:14:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:14:46,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:14:46,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:14:46,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269037587] [2024-02-02 09:14:46,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269037587] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:14:46,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:14:46,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:14:46,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387443063] [2024-02-02 09:14:46,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:14:46,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:14:46,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:14:46,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:14:46,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:14:46,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 92 [2024-02-02 09:14:46,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 80 transitions, 188 flow. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:14:46,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:14:46,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 92 [2024-02-02 09:14:46,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:14:51,258 INFO L124 PetriNetUnfolderBase]: 29073/45033 cut-off events. [2024-02-02 09:14:51,259 INFO L125 PetriNetUnfolderBase]: For 4497/4825 co-relation queries the response was YES. [2024-02-02 09:14:51,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90903 conditions, 45033 events. 29073/45033 cut-off events. For 4497/4825 co-relation queries the response was YES. Maximal size of possible extension queue 2102. Compared 375788 event pairs, 25392 based on Foata normal form. 4362/35308 useless extension candidates. Maximal degree in co-relation 90890. Up to 38352 conditions per place. [2024-02-02 09:14:51,564 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 78 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2024-02-02 09:14:51,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 106 transitions, 418 flow [2024-02-02 09:14:51,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:14:51,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:14:51,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 201 transitions. [2024-02-02 09:14:51,566 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5461956521739131 [2024-02-02 09:14:51,566 INFO L175 Difference]: Start difference. First operand has 87 places, 80 transitions, 188 flow. Second operand 4 states and 201 transitions. [2024-02-02 09:14:51,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 106 transitions, 418 flow [2024-02-02 09:14:51,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 106 transitions, 412 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:14:51,569 INFO L231 Difference]: Finished difference. Result has 83 places, 74 transitions, 176 flow [2024-02-02 09:14:51,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=83, PETRI_TRANSITIONS=74} [2024-02-02 09:14:51,570 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -15 predicate places. [2024-02-02 09:14:51,570 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 74 transitions, 176 flow [2024-02-02 09:14:51,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:14:51,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:14:51,571 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-02 09:14:51,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:14:51,571 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 77 more)] === [2024-02-02 09:14:51,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:14:51,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1120391250, now seen corresponding path program 1 times [2024-02-02 09:14:51,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:14:51,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418773212] [2024-02-02 09:14:51,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:14:51,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:14:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:14:51,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:14:51,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:14:51,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418773212] [2024-02-02 09:14:51,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418773212] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:14:51,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:14:51,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:14:51,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316259229] [2024-02-02 09:14:51,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:14:51,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:14:51,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:14:51,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:14:51,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:14:51,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 92 [2024-02-02 09:14:51,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 74 transitions, 176 flow. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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) [2024-02-02 09:14:51,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:14:51,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 92 [2024-02-02 09:14:51,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:14:58,385 INFO L124 PetriNetUnfolderBase]: 40521/61794 cut-off events. [2024-02-02 09:14:58,386 INFO L125 PetriNetUnfolderBase]: For 6417/6423 co-relation queries the response was YES. [2024-02-02 09:14:58,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125781 conditions, 61794 events. 40521/61794 cut-off events. For 6417/6423 co-relation queries the response was YES. Maximal size of possible extension queue 2810. Compared 525605 event pairs, 22911 based on Foata normal form. 57/45350 useless extension candidates. Maximal degree in co-relation 125767. Up to 55693 conditions per place. [2024-02-02 09:14:58,920 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 78 selfloop transitions, 7 changer transitions 0/106 dead transitions. [2024-02-02 09:14:58,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 106 transitions, 424 flow [2024-02-02 09:14:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:14:58,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:14:58,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 182 transitions. [2024-02-02 09:14:58,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4945652173913043 [2024-02-02 09:14:58,925 INFO L175 Difference]: Start difference. First operand has 83 places, 74 transitions, 176 flow. Second operand 4 states and 182 transitions. [2024-02-02 09:14:58,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 106 transitions, 424 flow [2024-02-02 09:14:58,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 106 transitions, 420 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:14:58,929 INFO L231 Difference]: Finished difference. Result has 86 places, 77 transitions, 209 flow [2024-02-02 09:14:58,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=209, PETRI_PLACES=86, PETRI_TRANSITIONS=77} [2024-02-02 09:14:58,930 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -12 predicate places. [2024-02-02 09:14:58,930 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 77 transitions, 209 flow [2024-02-02 09:14:58,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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) [2024-02-02 09:14:58,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:14:58,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:14:58,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:14:58,931 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 77 more)] === [2024-02-02 09:14:58,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:14:58,931 INFO L85 PathProgramCache]: Analyzing trace with hash -373310836, now seen corresponding path program 1 times [2024-02-02 09:14:58,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:14:58,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245311368] [2024-02-02 09:14:58,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:14:58,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:14:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:14:59,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:14:59,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:14:59,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245311368] [2024-02-02 09:14:59,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245311368] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:14:59,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:14:59,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:14:59,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012578047] [2024-02-02 09:14:59,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:14:59,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:14:59,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:14:59,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:14:59,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:14:59,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 92 [2024-02-02 09:14:59,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 77 transitions, 209 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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) [2024-02-02 09:14:59,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:14:59,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 92 [2024-02-02 09:14:59,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:15:04,227 INFO L124 PetriNetUnfolderBase]: 31366/48869 cut-off events. [2024-02-02 09:15:04,227 INFO L125 PetriNetUnfolderBase]: For 5423/5501 co-relation queries the response was YES. [2024-02-02 09:15:04,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99384 conditions, 48869 events. 31366/48869 cut-off events. For 5423/5501 co-relation queries the response was YES. Maximal size of possible extension queue 2226. Compared 422306 event pairs, 3995 based on Foata normal form. 4202/39954 useless extension candidates. Maximal degree in co-relation 99368. Up to 40464 conditions per place. [2024-02-02 09:15:04,594 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 93 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2024-02-02 09:15:04,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 118 transitions, 513 flow [2024-02-02 09:15:04,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:15:04,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:15:04,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 219 transitions. [2024-02-02 09:15:04,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.595108695652174 [2024-02-02 09:15:04,596 INFO L175 Difference]: Start difference. First operand has 86 places, 77 transitions, 209 flow. Second operand 4 states and 219 transitions. [2024-02-02 09:15:04,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 118 transitions, 513 flow [2024-02-02 09:15:04,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 118 transitions, 493 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:15:04,600 INFO L231 Difference]: Finished difference. Result has 83 places, 73 transitions, 193 flow [2024-02-02 09:15:04,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=193, PETRI_PLACES=83, PETRI_TRANSITIONS=73} [2024-02-02 09:15:04,601 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -15 predicate places. [2024-02-02 09:15:04,601 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 73 transitions, 193 flow [2024-02-02 09:15:04,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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) [2024-02-02 09:15:04,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:15:04,602 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:15:04,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:15:04,602 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P0Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 77 more)] === [2024-02-02 09:15:04,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:15:04,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1340815153, now seen corresponding path program 1 times [2024-02-02 09:15:04,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:15:04,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012788099] [2024-02-02 09:15:04,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:15:04,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:15:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:15:04,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:15:04,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:15:04,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012788099] [2024-02-02 09:15:04,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012788099] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:15:04,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:15:04,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:15:04,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975752121] [2024-02-02 09:15:04,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:15:04,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-02 09:15:04,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:15:04,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-02 09:15:04,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-02-02 09:15:04,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 92 [2024-02-02 09:15:04,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 73 transitions, 193 flow. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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) [2024-02-02 09:15:04,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:15:04,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 92 [2024-02-02 09:15:04,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:15:11,030 INFO L124 PetriNetUnfolderBase]: 37921/57885 cut-off events. [2024-02-02 09:15:11,030 INFO L125 PetriNetUnfolderBase]: For 7240/7330 co-relation queries the response was YES. [2024-02-02 09:15:11,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119434 conditions, 57885 events. 37921/57885 cut-off events. For 7240/7330 co-relation queries the response was YES. Maximal size of possible extension queue 2811. Compared 488722 event pairs, 20731 based on Foata normal form. 134/41705 useless extension candidates. Maximal degree in co-relation 119419. Up to 51737 conditions per place. [2024-02-02 09:15:11,414 INFO L140 encePairwiseOnDemand]: 80/92 looper letters, 93 selfloop transitions, 10 changer transitions 0/120 dead transitions. [2024-02-02 09:15:11,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 120 transitions, 527 flow [2024-02-02 09:15:11,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:15:11,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:15:11,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 228 transitions. [2024-02-02 09:15:11,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4956521739130435 [2024-02-02 09:15:11,416 INFO L175 Difference]: Start difference. First operand has 83 places, 73 transitions, 193 flow. Second operand 5 states and 228 transitions. [2024-02-02 09:15:11,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 120 transitions, 527 flow [2024-02-02 09:15:11,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 120 transitions, 518 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:15:11,424 INFO L231 Difference]: Finished difference. Result has 88 places, 82 transitions, 281 flow [2024-02-02 09:15:11,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=281, PETRI_PLACES=88, PETRI_TRANSITIONS=82} [2024-02-02 09:15:11,426 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -10 predicate places. [2024-02-02 09:15:11,426 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 82 transitions, 281 flow [2024-02-02 09:15:11,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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) [2024-02-02 09:15:11,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:15:11,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:15:11,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:15:11,428 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting P1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 77 more)] === [2024-02-02 09:15:11,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:15:11,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1312266437, now seen corresponding path program 1 times [2024-02-02 09:15:11,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:15:11,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502366144] [2024-02-02 09:15:11,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:15:11,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:15:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:15:11,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:15:11,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:15:11,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502366144] [2024-02-02 09:15:11,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502366144] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:15:11,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:15:11,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:15:11,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377589149] [2024-02-02 09:15:11,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:15:11,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:15:11,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:15:11,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:15:11,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:15:11,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 92 [2024-02-02 09:15:11,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 82 transitions, 281 flow. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 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) [2024-02-02 09:15:11,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:15:11,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 92 [2024-02-02 09:15:11,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand