./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.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/safe030_tso.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d25acf6 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe030_tso.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-3d25acf-m [2024-01-30 14:18:45,131 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:18:45,179 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:18:45,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:18:45,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:18:45,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:18:45,209 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:18:45,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:18:45,210 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:18:45,213 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:18:45,213 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:18:45,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:18:45,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:18:45,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:18:45,216 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:18:45,216 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:18:45,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:18:45,217 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:18:45,217 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:18:45,217 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:18:45,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:18:45,218 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:18:45,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:18:45,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:18:45,219 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:18:45,219 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:18:45,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:18:45,220 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:18:45,220 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:18:45,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:18:45,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:18:45,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:18:45,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:18:45,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:18:45,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:18:45,223 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:18:45,223 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:18:45,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:18:45,223 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:18:45,223 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:18:45,224 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:18:45,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:18:45,224 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:18:45,224 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:18:45,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:18:45,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:18:45,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:18:45,462 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:18:45,463 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:18:45,464 INFO L431 ainManager$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/safe030_tso.yml/witness.yml [2024-01-30 14:18:45,695 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:18:45,696 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:18:45,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2024-01-30 14:18:46,790 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:18:47,049 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:18:47,050 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2024-01-30 14:18:47,071 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dec02c41/b63c1140f0084c429a4c08a5a0e95750/FLAG4732a728d [2024-01-30 14:18:47,081 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dec02c41/b63c1140f0084c429a4c08a5a0e95750 [2024-01-30 14:18:47,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:18:47,083 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:18:47,084 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:18:47,084 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:18:47,087 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:18:47,088 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:18:45" (1/2) ... [2024-01-30 14:18:47,089 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@311ae7fd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:18:47, skipping insertion in model container [2024-01-30 14:18:47,089 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:18:45" (1/2) ... [2024-01-30 14:18:47,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6897f05a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:18:47, skipping insertion in model container [2024-01-30 14:18:47,090 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:18:47" (2/2) ... [2024-01-30 14:18:47,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@311ae7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:18:47, skipping insertion in model container [2024-01-30 14:18:47,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:18:47" (2/2) ... [2024-01-30 14:18:47,091 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:18:47,300 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:18:47,301 INFO L98 nessWitnessExtractor]: Location invariant before [L735-L735] (unsigned long )arg == 0UL [2024-01-30 14:18:47,301 INFO L98 nessWitnessExtractor]: Location invariant before [L724-L724] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,302 INFO L98 nessWitnessExtractor]: Location invariant before [L722-L722] ((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z == 2)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-30 14:18:47,302 INFO L98 nessWitnessExtractor]: Location invariant before [L744-L744] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,302 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,302 INFO L98 nessWitnessExtractor]: Location invariant before [L738-L738] (unsigned long )arg == 0UL [2024-01-30 14:18:47,303 INFO L98 nessWitnessExtractor]: Location invariant before [L751-L751] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,303 INFO L98 nessWitnessExtractor]: Location invariant before [L746-L746] (unsigned long )arg == 0UL [2024-01-30 14:18:47,303 INFO L98 nessWitnessExtractor]: Location invariant before [L759-L759] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,303 INFO L98 nessWitnessExtractor]: Location invariant before [L731-L731] (unsigned long )arg == 0UL [2024-01-30 14:18:47,303 INFO L98 nessWitnessExtractor]: Location invariant before [L788-L788] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,303 INFO L98 nessWitnessExtractor]: Location invariant before [L739-L739] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,303 INFO L98 nessWitnessExtractor]: Location invariant before [L761-L761] (unsigned long )arg == 0UL [2024-01-30 14:18:47,304 INFO L98 nessWitnessExtractor]: Location invariant before [L757-L757] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,304 INFO L98 nessWitnessExtractor]: Location invariant before [L727-L727] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,304 INFO L98 nessWitnessExtractor]: Location invariant before [L760-L760] (((((((((((((((0 <= x) && (0 <= y)) && (0 <= z)) && (1 <= __unbuffered_cnt)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,304 INFO L98 nessWitnessExtractor]: Location invariant before [L775-L775] (((((__unbuffered_cnt == 0) && (main$tmp_guard0 == (_Bool)0)) && (main$tmp_guard1 == (_Bool)0)) && (x == 0)) && (y == 0)) && (z == 0) [2024-01-30 14:18:47,304 INFO L98 nessWitnessExtractor]: Location invariant before [L756-L756] (unsigned long )arg == 0UL [2024-01-30 14:18:47,304 INFO L98 nessWitnessExtractor]: Location invariant before [L725-L725] ((((((((((((0 <= __unbuffered_cnt) && (0 <= y)) && (0 <= z)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (x == 1)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,304 INFO L98 nessWitnessExtractor]: Location invariant before [L743-L743] (unsigned long )arg == 0UL [2024-01-30 14:18:47,305 INFO L98 nessWitnessExtractor]: Location invariant before [L750-L750] (unsigned long )arg == 0UL [2024-01-30 14:18:47,305 INFO L98 nessWitnessExtractor]: Location invariant before [L742-L742] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,305 INFO L98 nessWitnessExtractor]: Location invariant before [L787-L787] ((((((((0 <= __unbuffered_cnt) && (0 <= z)) && (z <= 2)) && (z <= 127)) && (x == 2)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (y == 2 || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2)))) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,305 INFO L98 nessWitnessExtractor]: Location invariant before [L785-L785] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,306 INFO L98 nessWitnessExtractor]: Location invariant before [L730-L730] (((((((((((((((0 <= x) && (0 <= y)) && (0 <= z)) && (1 <= __unbuffered_cnt)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,306 INFO L98 nessWitnessExtractor]: Location invariant before [L723-L723] (unsigned long )arg == 0UL [2024-01-30 14:18:47,306 INFO L98 nessWitnessExtractor]: Location invariant before [L740-L740] ((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (z <= 2)) && (z <= 127)) && (y == 1)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,306 INFO L98 nessWitnessExtractor]: Location invariant before [L782-L782] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,306 INFO L98 nessWitnessExtractor]: Location invariant before [L752-L752] ((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (z <= 2)) && (z <= 127)) && (y == 2)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,306 INFO L98 nessWitnessExtractor]: Location invariant before [L754-L754] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,306 INFO L98 nessWitnessExtractor]: Location invariant before [L18-L18] ((((expression == 0) && (0 <= expression)) && (expression <= 1)) && (expression == 0 || expression == 1)) && (expression == 1) [2024-01-30 14:18:47,307 INFO L98 nessWitnessExtractor]: Location invariant before [L737-L737] ((((((((((((0 <= __unbuffered_cnt) && (0 <= y)) && (0 <= z)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (x == 2)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,307 INFO L98 nessWitnessExtractor]: Location invariant before [L781-L781] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,307 INFO L98 nessWitnessExtractor]: Location invariant before [L741-L741] (unsigned long )arg == 0UL [2024-01-30 14:18:47,307 INFO L98 nessWitnessExtractor]: Location invariant before [L755-L755] ((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z == 1)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-30 14:18:47,308 INFO L98 nessWitnessExtractor]: Location invariant before [L745-L745] (((((((((((((((0 <= x) && (0 <= y)) && (0 <= z)) && (1 <= __unbuffered_cnt)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,308 INFO L98 nessWitnessExtractor]: Location invariant before [L758-L758] (unsigned long )arg == 0UL [2024-01-30 14:18:47,308 INFO L98 nessWitnessExtractor]: Location invariant before [L753-L753] (unsigned long )arg == 0UL [2024-01-30 14:18:47,309 INFO L98 nessWitnessExtractor]: Location invariant before [L736-L736] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,309 INFO L98 nessWitnessExtractor]: Location invariant before [L728-L728] (unsigned long )arg == 0UL [2024-01-30 14:18:47,309 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] (unsigned long )arg == 0UL [2024-01-30 14:18:47,309 INFO L98 nessWitnessExtractor]: Location invariant before [L726-L726] (unsigned long )arg == 0UL [2024-01-30 14:18:47,309 INFO L98 nessWitnessExtractor]: Location invariant before [L729-L729] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-30 14:18:47,342 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:18:47,492 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/safe030_tso.i[945,958] [2024-01-30 14:18:47,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:18:47,629 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:18:47,638 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/safe030_tso.i[945,958] [2024-01-30 14:18:47,640 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 Start Parsing Local [2024-01-30 14:18:47,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:18:47,792 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:18:47,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:18:47 WrapperNode [2024-01-30 14:18:47,793 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:18:47,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:18:47,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:18:47,795 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:18:47,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:18:47" (1/1) ... [2024-01-30 14:18:47,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:18:47" (1/1) ... [2024-01-30 14:18:47,843 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2024-01-30 14:18:47,843 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:18:47,844 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:18:47,844 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:18:47,844 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:18:47,856 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:18:47" (1/1) ... [2024-01-30 14:18:47,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:18:47" (1/1) ... [2024-01-30 14:18:47,873 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:18:47" (1/1) ... [2024-01-30 14:18:47,894 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]. [2024-01-30 14:18:47,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:18:47" (1/1) ... [2024-01-30 14:18:47,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:18:47" (1/1) ... [2024-01-30 14:18:47,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:18:47" (1/1) ... [2024-01-30 14:18:47,923 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:18:47" (1/1) ... [2024-01-30 14:18:47,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:18:47" (1/1) ... [2024-01-30 14:18:47,936 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:18:47" (1/1) ... [2024-01-30 14:18:47,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:18:47,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:18:47,941 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:18:47,941 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:18:47,942 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:18:47" (1/1) ... [2024-01-30 14:18:47,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:18:47,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:18:47,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-30 14:18:47,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-30 14:18:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:18:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:18:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:18:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:18:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-30 14:18:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:18:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:18:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:18:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-01-30 14:18:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-01-30 14:18:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-01-30 14:18:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-01-30 14:18:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-01-30 14:18:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-01-30 14:18:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:18:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:18:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:18:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:18:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-30 14:18:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:18:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:18:48,008 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:18:48,125 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:18:48,127 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:18:48,555 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:18:48,555 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:18:48,762 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:18:48,762 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-30 14:18:48,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:18:48 BoogieIcfgContainer [2024-01-30 14:18:48,763 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:18:48,765 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:18:48,765 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:18:48,768 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:18:48,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:18:45" (1/4) ... [2024-01-30 14:18:48,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a91860a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:18:48, skipping insertion in model container [2024-01-30 14:18:48,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:18:47" (2/4) ... [2024-01-30 14:18:48,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a91860a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:18:48, skipping insertion in model container [2024-01-30 14:18:48,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:18:47" (3/4) ... [2024-01-30 14:18:48,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a91860a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:18:48, skipping insertion in model container [2024-01-30 14:18:48,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:18:48" (4/4) ... [2024-01-30 14:18:48,773 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2024-01-30 14:18:48,787 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:18:48,787 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 43 error locations. [2024-01-30 14:18:48,787 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:18:48,877 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-30 14:18:48,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 93 transitions, 198 flow [2024-01-30 14:18:48,960 INFO L124 PetriNetUnfolderBase]: 1/90 cut-off events. [2024-01-30 14:18:48,960 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:18:48,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 90 events. 1/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 365 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2024-01-30 14:18:48,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 93 transitions, 198 flow [2024-01-30 14:18:48,969 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 90 transitions, 189 flow [2024-01-30 14:18:48,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:18:48,985 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;@604ac3a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:18:48,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2024-01-30 14:18:48,987 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:18:48,987 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:18:48,988 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:18:48,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:18:48,988 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:18:48,989 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-30 14:18:49,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:18:49,026 INFO L85 PathProgramCache]: Analyzing trace with hash 12721, now seen corresponding path program 1 times [2024-01-30 14:18:49,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:18:49,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415910948] [2024-01-30 14:18:49,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:18:49,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:18:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:18:49,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:18:49,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:18:49,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415910948] [2024-01-30 14:18:49,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415910948] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:18:49,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:18:49,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:18:49,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771308403] [2024-01-30 14:18:49,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:18:49,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:18:49,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:18:49,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:18:49,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:18:49,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 93 [2024-01-30 14:18:49,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 90 transitions, 189 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) [2024-01-30 14:18:49,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:18:49,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 93 [2024-01-30 14:18:49,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:18:54,232 INFO L124 PetriNetUnfolderBase]: 28887/45073 cut-off events. [2024-01-30 14:18:54,233 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-01-30 14:18:54,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85345 conditions, 45073 events. 28887/45073 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 2177. Compared 385827 event pairs, 22247 based on Foata normal form. 1000/27468 useless extension candidates. Maximal degree in co-relation 85332. Up to 39969 conditions per place. [2024-01-30 14:18:54,574 INFO L140 encePairwiseOnDemand]: 74/93 looper letters, 52 selfloop transitions, 4 changer transitions 0/89 dead transitions. [2024-01-30 14:18:54,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 89 transitions, 305 flow [2024-01-30 14:18:54,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:18:54,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:18:54,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2024-01-30 14:18:54,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6559139784946236 [2024-01-30 14:18:54,587 INFO L175 Difference]: Start difference. First operand has 99 places, 90 transitions, 189 flow. Second operand 3 states and 183 transitions. [2024-01-30 14:18:54,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 89 transitions, 305 flow [2024-01-30 14:18:54,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 89 transitions, 300 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-30 14:18:54,598 INFO L231 Difference]: Finished difference. Result has 87 places, 80 transitions, 188 flow [2024-01-30 14:18:54,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, 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} [2024-01-30 14:18:54,603 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -12 predicate places. [2024-01-30 14:18:54,605 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 80 transitions, 188 flow [2024-01-30 14:18:54,605 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) [2024-01-30 14:18:54,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:18:54,606 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:18:54,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:18:54,612 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-30 14:18:54,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:18:54,613 INFO L85 PathProgramCache]: Analyzing trace with hash 379474478, now seen corresponding path program 1 times [2024-01-30 14:18:54,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:18:54,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350616000] [2024-01-30 14:18:54,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:18:54,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:18:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:18:54,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:18:54,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:18:54,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350616000] [2024-01-30 14:18:54,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350616000] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:18:54,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:18:54,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:18:54,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076970067] [2024-01-30 14:18:54,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:18:54,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:18:54,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:18:54,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:18:54,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:18:54,711 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 93 [2024-01-30 14:18:54,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 80 transitions, 188 flow. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:18:54,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:18:54,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 93 [2024-01-30 14:18:54,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:18:59,661 INFO L124 PetriNetUnfolderBase]: 31811/49124 cut-off events. [2024-01-30 14:18:59,662 INFO L125 PetriNetUnfolderBase]: For 4670/4715 co-relation queries the response was YES. [2024-01-30 14:18:59,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99104 conditions, 49124 events. 31811/49124 cut-off events. For 4670/4715 co-relation queries the response was YES. Maximal size of possible extension queue 2289. Compared 416786 event pairs, 23235 based on Foata normal form. 4456/38296 useless extension candidates. Maximal degree in co-relation 99091. Up to 41132 conditions per place. [2024-01-30 14:18:59,937 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 80 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-01-30 14:18:59,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 109 transitions, 428 flow [2024-01-30 14:18:59,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:18:59,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:18:59,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 206 transitions. [2024-01-30 14:18:59,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.553763440860215 [2024-01-30 14:18:59,939 INFO L175 Difference]: Start difference. First operand has 87 places, 80 transitions, 188 flow. Second operand 4 states and 206 transitions. [2024-01-30 14:18:59,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 109 transitions, 428 flow [2024-01-30 14:18:59,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 109 transitions, 422 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:18:59,942 INFO L231 Difference]: Finished difference. Result has 84 places, 75 transitions, 178 flow [2024-01-30 14:18:59,942 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=84, PETRI_TRANSITIONS=75} [2024-01-30 14:18:59,942 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -15 predicate places. [2024-01-30 14:18:59,943 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 75 transitions, 178 flow [2024-01-30 14:18:59,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:18:59,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:18:59,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-30 14:18:59,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:18:59,943 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-30 14:18:59,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:18:59,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1121192628, now seen corresponding path program 1 times [2024-01-30 14:18:59,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:18:59,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794438653] [2024-01-30 14:18:59,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:18:59,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:18:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:19:00,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:19:00,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:19:00,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794438653] [2024-01-30 14:19:00,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794438653] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:19:00,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:19:00,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:19:00,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649106455] [2024-01-30 14:19:00,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:19:00,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:19:00,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:19:00,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:19:00,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:19:00,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 93 [2024-01-30 14:19:00,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 75 transitions, 178 flow. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:19:00,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:19:00,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 93 [2024-01-30 14:19:00,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:19:05,959 INFO L124 PetriNetUnfolderBase]: 43753/66741 cut-off events. [2024-01-30 14:19:05,960 INFO L125 PetriNetUnfolderBase]: For 7414/7431 co-relation queries the response was YES. [2024-01-30 14:19:06,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135848 conditions, 66741 events. 43753/66741 cut-off events. For 7414/7431 co-relation queries the response was YES. Maximal size of possible extension queue 3013. Compared 570007 event pairs, 33737 based on Foata normal form. 27/47553 useless extension candidates. Maximal degree in co-relation 135834. Up to 60317 conditions per place. [2024-01-30 14:19:06,391 INFO L140 encePairwiseOnDemand]: 87/93 looper letters, 65 selfloop transitions, 7 changer transitions 0/95 dead transitions. [2024-01-30 14:19:06,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 95 transitions, 376 flow [2024-01-30 14:19:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:19:06,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:19:06,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 177 transitions. [2024-01-30 14:19:06,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47580645161290325 [2024-01-30 14:19:06,395 INFO L175 Difference]: Start difference. First operand has 84 places, 75 transitions, 178 flow. Second operand 4 states and 177 transitions. [2024-01-30 14:19:06,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 95 transitions, 376 flow [2024-01-30 14:19:06,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 95 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:19:06,399 INFO L231 Difference]: Finished difference. Result has 87 places, 78 transitions, 211 flow [2024-01-30 14:19:06,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=87, PETRI_TRANSITIONS=78} [2024-01-30 14:19:06,400 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -12 predicate places. [2024-01-30 14:19:06,400 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 78 transitions, 211 flow [2024-01-30 14:19:06,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:19:06,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:19:06,401 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:19:06,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:19:06,401 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-30 14:19:06,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:19:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash -398420837, now seen corresponding path program 1 times [2024-01-30 14:19:06,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:19:06,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982911560] [2024-01-30 14:19:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:19:06,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:19:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:19:06,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:19:06,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:19:06,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982911560] [2024-01-30 14:19:06,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982911560] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:19:06,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:19:06,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:19:06,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891239406] [2024-01-30 14:19:06,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:19:06,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:19:06,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:19:06,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:19:06,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:19:06,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 93 [2024-01-30 14:19:06,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 78 transitions, 211 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:19:06,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:19:06,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 93 [2024-01-30 14:19:06,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:19:11,863 INFO L124 PetriNetUnfolderBase]: 33740/55134 cut-off events. [2024-01-30 14:19:11,863 INFO L125 PetriNetUnfolderBase]: For 6464/6536 co-relation queries the response was YES. [2024-01-30 14:19:12,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109791 conditions, 55134 events. 33740/55134 cut-off events. For 6464/6536 co-relation queries the response was YES. Maximal size of possible extension queue 2608. Compared 506856 event pairs, 12063 based on Foata normal form. 4888/43020 useless extension candidates. Maximal degree in co-relation 109775. Up to 44012 conditions per place. [2024-01-30 14:19:12,185 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 89 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2024-01-30 14:19:12,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 114 transitions, 497 flow [2024-01-30 14:19:12,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:19:12,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:19:12,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 212 transitions. [2024-01-30 14:19:12,187 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5698924731182796 [2024-01-30 14:19:12,187 INFO L175 Difference]: Start difference. First operand has 87 places, 78 transitions, 211 flow. Second operand 4 states and 212 transitions. [2024-01-30 14:19:12,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 114 transitions, 497 flow [2024-01-30 14:19:12,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 114 transitions, 477 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:19:12,190 INFO L231 Difference]: Finished difference. Result has 83 places, 73 transitions, 193 flow [2024-01-30 14:19:12,190 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, 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} [2024-01-30 14:19:12,191 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -16 predicate places. [2024-01-30 14:19:12,191 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 73 transitions, 193 flow [2024-01-30 14:19:12,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:19:12,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:19:12,192 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:19:12,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:19:12,192 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P0Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-30 14:19:12,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:19:12,192 INFO L85 PathProgramCache]: Analyzing trace with hash 570690991, now seen corresponding path program 1 times [2024-01-30 14:19:12,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:19:12,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564934389] [2024-01-30 14:19:12,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:19:12,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:19:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:19:12,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:19:12,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:19:12,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564934389] [2024-01-30 14:19:12,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564934389] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:19:12,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:19:12,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:19:12,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127623024] [2024-01-30 14:19:12,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:19:12,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-30 14:19:12,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:19:12,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-30 14:19:12,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-01-30 14:19:12,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 93 [2024-01-30 14:19:12,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 73 transitions, 193 flow. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:19:12,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:19:12,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 93 [2024-01-30 14:19:12,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:19:18,438 INFO L124 PetriNetUnfolderBase]: 43423/66230 cut-off events. [2024-01-30 14:19:18,439 INFO L125 PetriNetUnfolderBase]: For 8334/8385 co-relation queries the response was YES. [2024-01-30 14:19:18,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137009 conditions, 66230 events. 43423/66230 cut-off events. For 8334/8385 co-relation queries the response was YES. Maximal size of possible extension queue 3055. Compared 565301 event pairs, 31123 based on Foata normal form. 34/47112 useless extension candidates. Maximal degree in co-relation 136994. Up to 59781 conditions per place. [2024-01-30 14:19:18,871 INFO L140 encePairwiseOnDemand]: 84/93 looper letters, 74 selfloop transitions, 10 changer transitions 0/102 dead transitions. [2024-01-30 14:19:18,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 102 transitions, 442 flow [2024-01-30 14:19:18,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:19:18,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:19:18,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 222 transitions. [2024-01-30 14:19:18,887 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4774193548387097 [2024-01-30 14:19:18,887 INFO L175 Difference]: Start difference. First operand has 83 places, 73 transitions, 193 flow. Second operand 5 states and 222 transitions. [2024-01-30 14:19:18,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 102 transitions, 442 flow [2024-01-30 14:19:18,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 102 transitions, 433 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:19:18,901 INFO L231 Difference]: Finished difference. Result has 86 places, 76 transitions, 236 flow [2024-01-30 14:19:18,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=86, PETRI_TRANSITIONS=76} [2024-01-30 14:19:18,904 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -13 predicate places. [2024-01-30 14:19:18,904 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 76 transitions, 236 flow [2024-01-30 14:19:18,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:19:18,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:19:18,904 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:19:18,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:19:18,905 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting P1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-30 14:19:18,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:19:18,905 INFO L85 PathProgramCache]: Analyzing trace with hash 533856405, now seen corresponding path program 1 times [2024-01-30 14:19:18,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:19:18,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705932228] [2024-01-30 14:19:18,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:19:18,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:19:18,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:19:19,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:19:19,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:19:19,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705932228] [2024-01-30 14:19:19,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705932228] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:19:19,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:19:19,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:19:19,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516320360] [2024-01-30 14:19:19,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:19:19,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:19:19,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:19:19,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:19:19,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:19:19,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 93 [2024-01-30 14:19:19,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 76 transitions, 236 flow. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:19:19,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:19:19,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 93 [2024-01-30 14:19:19,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand