./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix046.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/mix046.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7c74aec Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix046.opt.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/mix046.opt.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:28:11,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:28:11,181 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:28:11,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:28:11,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:28:11,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:28:11,211 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:28:11,212 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:28:11,212 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:28:11,215 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:28:11,215 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:28:11,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:28:11,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:28:11,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:28:11,217 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:28:11,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:28:11,217 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:28:11,217 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:28:11,217 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:28:11,218 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:28:11,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:28:11,218 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:28:11,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:28:11,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:28:11,218 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:28:11,219 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:28:11,219 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:28:11,219 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:28:11,219 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:28:11,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:28:11,220 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:28:11,220 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:28:11,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:28:11,221 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:28:11,221 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:28:11,221 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:28:11,221 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:28:11,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:28:11,221 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:28:11,221 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:28:11,221 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:28:11,222 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:28:11,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:28:11,222 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:28:11,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:28:11,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:28:11,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:28:11,477 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:28:11,478 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:28:11,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/mix046.opt.yml/witness.yml [2024-02-07 19:28:11,611 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:28:11,611 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:28:11,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix046.opt.i [2024-02-07 19:28:12,730 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:28:12,979 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:28:12,979 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix046.opt.i [2024-02-07 19:28:13,001 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b98e536b0/e6a63cd994b641e4a90ffcde9595954b/FLAGc03694eba [2024-02-07 19:28:13,012 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b98e536b0/e6a63cd994b641e4a90ffcde9595954b [2024-02-07 19:28:13,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:28:13,013 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:28:13,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:28:13,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:28:13,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:28:13,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:28:11" (1/2) ... [2024-02-07 19:28:13,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ebb8b01 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:28:13, skipping insertion in model container [2024-02-07 19:28:13,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:28:11" (1/2) ... [2024-02-07 19:28:13,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@178b8fac and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:28:13, skipping insertion in model container [2024-02-07 19:28:13,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:28:13" (2/2) ... [2024-02-07 19:28:13,022 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ebb8b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:28:13, skipping insertion in model container [2024-02-07 19:28:13,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:28:13" (2/2) ... [2024-02-07 19:28:13,023 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:28:13,168 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:28:13,169 INFO L76 edCorrectnessWitness]: Location invariant before [L755-L755] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 19:28:13,169 INFO L76 edCorrectnessWitness]: Location invariant before [L867-L867] weak$$choice0 == (_Bool)0 || weak$$choice0 == (_Bool)1 [2024-02-07 19:28:13,170 INFO L76 edCorrectnessWitness]: Location invariant before [L877-L877] ((((0 <= __unbuffered_p3_EBX) && (__unbuffered_p3_EBX <= 1)) && (y == 2)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && ((z == 2 && ((__unbuffered_p0_EAX == 0 && (__unbuffered_p3_EAX == 1 || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) || (((((0 <= __unbuffered_p0_EAX && 0 <= __unbuffered_p3_EAX) && __unbuffered_p0_EAX <= 1) && __unbuffered_p3_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) || (((((((((0 <= __unbuffered_p0_EAX && 0 <= __unbuffered_p3_EAX) && 0 <= z) && __unbuffered_p0_EAX <= 1) && __unbuffered_p3_EAX <= 1) && z <= 2) && z <= 127) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)) && ((z == 0 || z == 1) || z == 2))) [2024-02-07 19:28:13,170 INFO L76 edCorrectnessWitness]: Location invariant before [L862-L862] (z$r_buff0_thd0 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 19:28:13,170 INFO L76 edCorrectnessWitness]: Location invariant before [L855-L855] 0 <= __unbuffered_cnt [2024-02-07 19:28:13,170 INFO L76 edCorrectnessWitness]: Location invariant before [L828-L828] (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1) && (((z$w_buff1_used == (_Bool)1 && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1)) || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) || (z$w_buff0_used == (_Bool)1 && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1))) [2024-02-07 19:28:13,170 INFO L76 edCorrectnessWitness]: Location invariant before [L861-L861] (z$r_buff1_thd0 == (_Bool)0 && (z$w_buff1_used == (_Bool)1 || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 19:28:13,170 INFO L76 edCorrectnessWitness]: Location invariant before [L768-L768] x == 1 [2024-02-07 19:28:13,170 INFO L76 edCorrectnessWitness]: Location invariant before [L873-L873] ((((z$r_buff1_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd0 == (_Bool)0) || (((z$r_buff0_thd0 == (_Bool)0 && z$r_buff1_thd0 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd0 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:28:13,171 INFO L76 edCorrectnessWitness]: Location invariant before [L796-L796] 1 <= __unbuffered_cnt [2024-02-07 19:28:13,171 INFO L76 edCorrectnessWitness]: Location invariant before [L809-L809] (z$r_buff0_thd2 == (_Bool)0) && (z$r_buff1_thd1 == (_Bool)0) [2024-02-07 19:28:13,171 INFO L76 edCorrectnessWitness]: Location invariant before [L793-L793] z$r_buff1_thd3 == (_Bool)0 [2024-02-07 19:28:13,171 INFO L76 edCorrectnessWitness]: Location invariant before [L753-L753] b == 1 [2024-02-07 19:28:13,171 INFO L76 edCorrectnessWitness]: Location invariant before [L771-L771] y == 1 [2024-02-07 19:28:13,171 INFO L76 edCorrectnessWitness]: Location invariant before [L802-L802] ((((0 <= z$w_buff0) && (z$w_buff0 <= 2)) && (z$w_buff0 <= 127)) && (z$w_buff0 % 2 == 0)) && (z$w_buff0 == 0 || z$w_buff0 == 2) [2024-02-07 19:28:13,171 INFO L76 edCorrectnessWitness]: Location invariant before [L761-L761] 1 <= __unbuffered_cnt [2024-02-07 19:28:13,172 INFO L76 edCorrectnessWitness]: Location invariant before [L881-L881] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 19:28:13,172 INFO L76 edCorrectnessWitness]: Location invariant before [L875-L875] ((((((z$r_buff0_thd0 == (_Bool)0 || ((z$r_buff1_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1)) || z$r_buff0_thd0 == (_Bool)0) || (((z$r_buff0_thd0 == (_Bool)0 && z$r_buff1_thd0 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd0 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || ((z$r_buff1_thd0 == (_Bool)0 && (z$w_buff0_used == (_Bool)0 || z$w_buff0_used == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || z$r_buff0_thd0 == (_Bool)0) || ((z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1) && (weak$$choice2 == (_Bool)0 || weak$$choice2 == (_Bool)1)) [2024-02-07 19:28:13,172 INFO L76 edCorrectnessWitness]: Location invariant before [L760-L760] 0 <= __unbuffered_cnt [2024-02-07 19:28:13,172 INFO L76 edCorrectnessWitness]: Location invariant before [L868-L868] weak$$choice2 == (_Bool)0 || weak$$choice2 == (_Bool)1 [2024-02-07 19:28:13,172 INFO L76 edCorrectnessWitness]: Location invariant before [L863-L863] ((z$r_buff0_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) || (z$r_buff1_thd0 == (_Bool)0 && z$w_buff1_used == (_Bool)1)) || (z$r_buff1_thd0 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:28:13,173 INFO L76 edCorrectnessWitness]: Location invariant before [L788-L788] (z$r_buff1_thd3 == (_Bool)0 && z$w_buff1_used == (_Bool)1) || (z$r_buff0_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 19:28:13,173 INFO L76 edCorrectnessWitness]: Location invariant before [L871-L871] ((((z$r_buff1_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd0 == (_Bool)0) || (((z$r_buff0_thd0 == (_Bool)0 && z$r_buff1_thd0 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd0 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:28:13,173 INFO L76 edCorrectnessWitness]: Location invariant before [L825-L825] (z$w_buff0_used == (_Bool)1) && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) [2024-02-07 19:28:13,173 INFO L76 edCorrectnessWitness]: Location invariant before [L795-L795] 0 <= __unbuffered_cnt [2024-02-07 19:28:13,173 INFO L76 edCorrectnessWitness]: Location invariant before [L827-L827] (z$w_buff0_used == (_Bool)1) && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) [2024-02-07 19:28:13,174 INFO L76 edCorrectnessWitness]: Location invariant before [L864-L864] z$r_buff1_thd0 == (_Bool)0 [2024-02-07 19:28:13,174 INFO L76 edCorrectnessWitness]: Location invariant before [L857-L857] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 19:28:13,174 INFO L76 edCorrectnessWitness]: Location invariant before [L816-L816] a == 1 [2024-02-07 19:28:13,174 INFO L76 edCorrectnessWitness]: Location invariant before [L804-L804] (z$w_buff0 == 2) && (z$w_buff0_used == (_Bool)0 || z$w_buff0_used == (_Bool)1) [2024-02-07 19:28:13,174 INFO L76 edCorrectnessWitness]: Location invariant before [L812-L812] z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1 [2024-02-07 19:28:13,174 INFO L76 edCorrectnessWitness]: Location invariant before [L756-L756] ((0 <= __unbuffered_p0_EAX) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) [2024-02-07 19:28:13,174 INFO L76 edCorrectnessWitness]: Location invariant before [L810-L810] (z$r_buff0_thd3 == (_Bool)0) && (z$r_buff1_thd2 == (_Bool)0) [2024-02-07 19:28:13,174 INFO L76 edCorrectnessWitness]: Location invariant before [L792-L792] (z$r_buff1_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)1 || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 19:28:13,175 INFO L76 edCorrectnessWitness]: Location invariant before [L872-L872] ((((z$r_buff1_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd0 == (_Bool)0) || (((z$r_buff0_thd0 == (_Bool)0 && z$r_buff1_thd0 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd0 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:28:13,175 INFO L76 edCorrectnessWitness]: Location invariant before [L807-L807] z$r_buff0_thd0 == (_Bool)0 [2024-02-07 19:28:13,175 INFO L76 edCorrectnessWitness]: Location invariant before [L819-L819] ((0 <= __unbuffered_p3_EAX) && (__unbuffered_p3_EAX <= 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1) [2024-02-07 19:28:13,175 INFO L76 edCorrectnessWitness]: Location invariant before [L856-L856] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 19:28:13,177 INFO L76 edCorrectnessWitness]: Location invariant before [L860-L860] (z$r_buff0_thd0 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 19:28:13,177 INFO L76 edCorrectnessWitness]: Location invariant before [L869-L869] ((((0 <= z) && (z <= 2)) && (z <= 127)) && (z$flush_delayed == (_Bool)0 || z$flush_delayed == (_Bool)1)) && ((z == 0 || z == 1) || z == 2) [2024-02-07 19:28:13,177 INFO L76 edCorrectnessWitness]: Location invariant before [L776-L776] 1 <= __unbuffered_cnt [2024-02-07 19:28:13,177 INFO L76 edCorrectnessWitness]: Location invariant before [L880-L880] z$flush_delayed == (_Bool)0 [2024-02-07 19:28:13,177 INFO L76 edCorrectnessWitness]: Location invariant before [L822-L822] ((0 <= __unbuffered_p3_EBX) && (__unbuffered_p3_EBX <= 1)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1) [2024-02-07 19:28:13,177 INFO L76 edCorrectnessWitness]: Location invariant before [L803-L803] ((((0 <= z$w_buff1) && (z$w_buff1 <= 2)) && (z$w_buff1 <= 127)) && (z$w_buff1 % 2 == 0)) && (z$w_buff1 == 0 || z$w_buff1 == 2) [2024-02-07 19:28:13,177 INFO L76 edCorrectnessWitness]: Location invariant before [L874-L874] ((((z$r_buff1_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd0 == (_Bool)0) || (((z$r_buff0_thd0 == (_Bool)0 && z$r_buff1_thd0 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd0 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:28:13,177 INFO L76 edCorrectnessWitness]: Location invariant before [L789-L789] (z$r_buff0_thd3 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 19:28:13,178 INFO L76 edCorrectnessWitness]: Location invariant before [L805-L805] z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1 [2024-02-07 19:28:13,178 INFO L76 edCorrectnessWitness]: Location invariant before [L879-L879] (((0 <= z) && (z <= 2)) && (z <= 127)) && ((z == 0 || z == 1) || z == 2) [2024-02-07 19:28:13,178 INFO L76 edCorrectnessWitness]: Location invariant before [L831-L831] 0 <= __unbuffered_cnt [2024-02-07 19:28:13,178 INFO L76 edCorrectnessWitness]: Location invariant before [L829-L829] z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1 [2024-02-07 19:28:13,179 INFO L76 edCorrectnessWitness]: Location invariant before [L832-L832] 1 <= __unbuffered_cnt [2024-02-07 19:28:13,179 INFO L76 edCorrectnessWitness]: Location invariant before [L775-L775] 0 <= __unbuffered_cnt [2024-02-07 19:28:13,179 INFO L76 edCorrectnessWitness]: Location invariant before [L870-L870] ((((z$r_buff1_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd0 == (_Bool)0) || (((z$r_buff0_thd0 == (_Bool)0 && z$r_buff1_thd0 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd0 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:28:13,179 INFO L76 edCorrectnessWitness]: Location invariant before [L824-L824] (z$w_buff1_used == (_Bool)1 && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) || (z$w_buff0_used == (_Bool)1 && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1)) [2024-02-07 19:28:13,179 INFO L76 edCorrectnessWitness]: Location invariant before [L818-L818] ((0 <= a) && (a <= 1)) && (a == 0 || a == 1) [2024-02-07 19:28:13,180 INFO L76 edCorrectnessWitness]: Location invariant before [L786-L786] z == 1 [2024-02-07 19:28:13,180 INFO L76 edCorrectnessWitness]: Location invariant before [L790-L790] (z$r_buff1_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)1 || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 19:28:13,181 INFO L76 edCorrectnessWitness]: Location invariant before [L811-L811] (z$r_buff1_thd3 == (_Bool)0) && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) [2024-02-07 19:28:13,181 INFO L76 edCorrectnessWitness]: Location invariant before [L783-L783] y == 2 [2024-02-07 19:28:13,181 INFO L76 edCorrectnessWitness]: Location invariant before [L18-L18] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-07 19:28:13,181 INFO L76 edCorrectnessWitness]: Location invariant before [L806-L806] (z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)1) [2024-02-07 19:28:13,181 INFO L76 edCorrectnessWitness]: Location invariant before [L813-L813] z$r_buff0_thd4 == (_Bool)1 [2024-02-07 19:28:13,181 INFO L76 edCorrectnessWitness]: Location invariant before [L859-L859] (z$r_buff1_thd0 == (_Bool)0 && z$w_buff1_used == (_Bool)1) || (z$r_buff0_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 19:28:13,181 INFO L76 edCorrectnessWitness]: Location invariant before [L876-L876] ((((z$r_buff1_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd0 == (_Bool)0) || (((z$r_buff0_thd0 == (_Bool)0 && z$r_buff1_thd0 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd0 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 19:28:13,182 INFO L76 edCorrectnessWitness]: Location invariant before [L808-L808] (z$r_buff0_thd1 == (_Bool)0) && (z$r_buff1_thd0 == (_Bool)0) [2024-02-07 19:28:13,182 INFO L76 edCorrectnessWitness]: Location invariant before [L821-L821] ((0 <= b) && (b <= 1)) && (b == 0 || b == 1) [2024-02-07 19:28:13,182 INFO L76 edCorrectnessWitness]: Location invariant before [L791-L791] (z$r_buff0_thd3 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 19:28:13,182 INFO L76 edCorrectnessWitness]: Location invariant before [L826-L826] (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1) && (((z$w_buff1_used == (_Bool)1 && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1)) || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) || (z$w_buff0_used == (_Bool)1 && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1))) [2024-02-07 19:28:13,222 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:28:13,422 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/mix046.opt.i[944,957] [2024-02-07 19:28:13,648 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:28:13,658 INFO L206 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 19:28:13,690 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/mix046.opt.i[944,957] 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 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 [2024-02-07 19:28:13,792 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:28:13,828 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:28:13,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:28:13 WrapperNode [2024-02-07 19:28:13,829 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:28:13,830 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:28:13,830 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:28:13,830 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:28:13,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:28:13" (1/1) ... [2024-02-07 19:28:13,868 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:28:13" (1/1) ... [2024-02-07 19:28:13,914 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 217 [2024-02-07 19:28:13,915 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:28:13,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:28:13,916 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:28:13,916 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:28:13,942 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:28:13" (1/1) ... [2024-02-07 19:28:13,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:28:13" (1/1) ... [2024-02-07 19:28:13,947 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:28:13" (1/1) ... [2024-02-07 19:28:13,964 INFO L175 MemorySlicer]: Split 6 memory accesses to 5 slices as follows [2, 1, 1, 1, 1]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-02-07 19:28:13,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:28:13" (1/1) ... [2024-02-07 19:28:13,964 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:28:13" (1/1) ... [2024-02-07 19:28:13,989 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:28:13" (1/1) ... [2024-02-07 19:28:13,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:28:13" (1/1) ... [2024-02-07 19:28:13,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:28:13" (1/1) ... [2024-02-07 19:28:13,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:28:13" (1/1) ... [2024-02-07 19:28:13,998 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:28:13,999 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:28:13,999 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:28:13,999 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:28:14,000 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:28:13" (1/1) ... [2024-02-07 19:28:14,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:28:14,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:28:14,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 19:28:14,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 19:28:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:28:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:28:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:28:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 19:28:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 19:28:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 19:28:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:28:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:28:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:28:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-07 19:28:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-07 19:28:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-07 19:28:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-07 19:28:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-07 19:28:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-07 19:28:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-02-07 19:28:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-02-07 19:28:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:28:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:28:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:28:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 19:28:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 19:28:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 19:28:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:28:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:28:14,116 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 19:28:14,262 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:28:14,265 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:28:14,665 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:28:14,666 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:28:15,127 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:28:15,128 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 19:28:15,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:28:15 BoogieIcfgContainer [2024-02-07 19:28:15,129 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:28:15,131 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:28:15,131 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:28:15,133 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:28:15,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:28:11" (1/4) ... [2024-02-07 19:28:15,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af82571 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:28:15, skipping insertion in model container [2024-02-07 19:28:15,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:28:13" (2/4) ... [2024-02-07 19:28:15,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af82571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:28:15, skipping insertion in model container [2024-02-07 19:28:15,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:28:13" (3/4) ... [2024-02-07 19:28:15,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af82571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:28:15, skipping insertion in model container [2024-02-07 19:28:15,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:28:15" (4/4) ... [2024-02-07 19:28:15,137 INFO L112 eAbstractionObserver]: Analyzing ICFG mix046.opt.i [2024-02-07 19:28:15,152 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:28:15,153 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2024-02-07 19:28:15,153 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:28:15,282 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 19:28:15,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 120 transitions, 256 flow [2024-02-07 19:28:15,366 INFO L124 PetriNetUnfolderBase]: 1/116 cut-off events. [2024-02-07 19:28:15,366 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:28:15,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 116 events. 1/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 575 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2024-02-07 19:28:15,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 120 transitions, 256 flow [2024-02-07 19:28:15,378 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 116 transitions, 244 flow [2024-02-07 19:28:15,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:28:15,398 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;@62ea1032, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:28:15,399 INFO L358 AbstractCegarLoop]: Starting to check reachability of 121 error locations. [2024-02-07 19:28:15,404 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:28:15,404 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-02-07 19:28:15,405 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:28:15,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:28:15,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-07 19:28:15,406 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 118 more)] === [2024-02-07 19:28:15,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:28:15,413 INFO L85 PathProgramCache]: Analyzing trace with hash 23233430, now seen corresponding path program 1 times [2024-02-07 19:28:15,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:28:15,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831840612] [2024-02-07 19:28:15,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:28:15,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:28:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:28:15,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:28:15,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:28:15,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831840612] [2024-02-07 19:28:15,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831840612] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:28:15,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:28:15,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:28:15,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555037398] [2024-02-07 19:28:15,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:28:15,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-02-07 19:28:15,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:28:15,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-02-07 19:28:15,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-02-07 19:28:15,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 120 [2024-02-07 19:28:15,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 116 transitions, 244 flow. Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:28:15,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:28:15,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 120 [2024-02-07 19:28:15,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:28:30,181 INFO L124 PetriNetUnfolderBase]: 128391/180372 cut-off events. [2024-02-07 19:28:30,182 INFO L125 PetriNetUnfolderBase]: For 439/439 co-relation queries the response was YES. [2024-02-07 19:28:30,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348448 conditions, 180372 events. 128391/180372 cut-off events. For 439/439 co-relation queries the response was YES. Maximal size of possible extension queue 8996. Compared 1453886 event pairs, 128391 based on Foata normal form. 2100/101515 useless extension candidates. Maximal degree in co-relation 348436. Up to 167131 conditions per place. [2024-02-07 19:28:31,406 INFO L140 encePairwiseOnDemand]: 85/120 looper letters, 49 selfloop transitions, 0 changer transitions 0/62 dead transitions. [2024-02-07 19:28:31,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 62 transitions, 234 flow [2024-02-07 19:28:31,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-02-07 19:28:31,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-02-07 19:28:31,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 118 transitions. [2024-02-07 19:28:31,417 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49166666666666664 [2024-02-07 19:28:31,418 INFO L175 Difference]: Start difference. First operand has 128 places, 116 transitions, 244 flow. Second operand 2 states and 118 transitions. [2024-02-07 19:28:31,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 62 transitions, 234 flow [2024-02-07 19:28:31,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 62 transitions, 230 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-07 19:28:31,428 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 132 flow [2024-02-07 19:28:31,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=72, PETRI_TRANSITIONS=62} [2024-02-07 19:28:31,432 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -56 predicate places. [2024-02-07 19:28:31,433 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 132 flow [2024-02-07 19:28:31,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:28:31,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:28:31,433 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-07 19:28:31,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:28:31,434 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 118 more)] === [2024-02-07 19:28:31,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:28:31,434 INFO L85 PathProgramCache]: Analyzing trace with hash 720237184, now seen corresponding path program 1 times [2024-02-07 19:28:31,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:28:31,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535243483] [2024-02-07 19:28:31,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:28:31,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:28:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:28:31,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:28:31,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:28:31,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535243483] [2024-02-07 19:28:31,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535243483] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:28:31,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:28:31,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:28:31,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291353425] [2024-02-07 19:28:31,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:28:31,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:28:31,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:28:31,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:28:31,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:28:31,687 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 120 [2024-02-07 19:28:31,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:28:31,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:28:31,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 120 [2024-02-07 19:28:31,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:28:44,541 INFO L124 PetriNetUnfolderBase]: 125047/170306 cut-off events. [2024-02-07 19:28:44,556 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:28:44,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334087 conditions, 170306 events. 125047/170306 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9008. Compared 1348848 event pairs, 17297 based on Foata normal form. 0/95359 useless extension candidates. Maximal degree in co-relation 334084. Up to 143709 conditions per place. [2024-02-07 19:28:45,724 INFO L140 encePairwiseOnDemand]: 117/120 looper letters, 86 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2024-02-07 19:28:45,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 101 transitions, 390 flow [2024-02-07 19:28:45,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:28:45,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:28:45,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2024-02-07 19:28:45,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3888888888888889 [2024-02-07 19:28:45,731 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 132 flow. Second operand 3 states and 140 transitions. [2024-02-07 19:28:45,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 101 transitions, 390 flow [2024-02-07 19:28:45,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 101 transitions, 390 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 19:28:45,734 INFO L231 Difference]: Finished difference. Result has 75 places, 62 transitions, 140 flow [2024-02-07 19:28:45,735 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=75, PETRI_TRANSITIONS=62} [2024-02-07 19:28:45,735 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -53 predicate places. [2024-02-07 19:28:45,735 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 62 transitions, 140 flow [2024-02-07 19:28:45,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:28:45,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:28:45,736 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:28:45,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 19:28:45,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 118 more)] === [2024-02-07 19:28:45,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:28:45,737 INFO L85 PathProgramCache]: Analyzing trace with hash 658227523, now seen corresponding path program 1 times [2024-02-07 19:28:45,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:28:45,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714844763] [2024-02-07 19:28:45,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:28:45,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:28:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:28:45,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:28:45,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:28:45,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714844763] [2024-02-07 19:28:45,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714844763] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:28:45,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:28:45,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:28:45,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353286733] [2024-02-07 19:28:45,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:28:45,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:28:45,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:28:45,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:28:45,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:28:45,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 120 [2024-02-07 19:28:45,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 62 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:28:45,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:28:45,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 120 [2024-02-07 19:28:45,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand