./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 958ec4d9 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-dev-958ec4d-m [2024-02-07 14:49:44,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:49:44,081 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:49:44,087 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:49:44,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:49:44,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:49:44,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:49:44,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:49:44,123 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:49:44,127 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:49:44,128 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:49:44,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:49:44,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:49:44,130 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:49:44,130 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:49:44,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:49:44,131 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:49:44,131 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:49:44,131 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:49:44,131 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:49:44,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:49:44,132 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:49:44,132 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:49:44,133 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:49:44,133 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:49:44,133 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:49:44,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:49:44,134 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:49:44,135 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:49:44,135 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:49:44,136 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:49:44,136 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:49:44,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:49:44,136 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:49:44,137 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:49:44,137 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:49:44,137 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:49:44,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:49:44,138 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:49:44,138 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:49:44,138 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:49:44,138 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:49:44,138 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:49:44,139 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:49:44,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:49:44,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:49:44,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:49:44,441 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:49:44,442 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:49:44,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix046.opt.i [2024-02-07 14:49:45,657 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:49:45,894 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:49:45,894 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix046.opt.i [2024-02-07 14:49:45,908 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/628879554/f0b5e2db3a5d4383b3b24ac2b6dbab7f/FLAG8b62fc3e9 [2024-02-07 14:49:45,920 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/628879554/f0b5e2db3a5d4383b3b24ac2b6dbab7f [2024-02-07 14:49:45,922 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:49:45,923 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:49:45,923 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/mix046.opt.yml/witness.yml [2024-02-07 14:49:46,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:49:46,070 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:49:46,072 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:49:46,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:49:46,076 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:49:46,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:49:45" (1/2) ... [2024-02-07 14:49:46,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13cb9700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:49:46, skipping insertion in model container [2024-02-07 14:49:46,077 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:49:45" (1/2) ... [2024-02-07 14:49:46,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7f59f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:49:46, skipping insertion in model container [2024-02-07 14:49:46,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:49:46" (2/2) ... [2024-02-07 14:49:46,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13cb9700 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:46, skipping insertion in model container [2024-02-07 14:49:46,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:49:46" (2/2) ... [2024-02-07 14:49:46,080 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:49:46,289 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:49:46,290 INFO L76 edCorrectnessWitness]: Location invariant before [L812-L812] z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1 [2024-02-07 14:49:46,290 INFO L76 edCorrectnessWitness]: Location invariant before [L810-L810] (z$r_buff0_thd3 == (_Bool)0) && (z$r_buff1_thd2 == (_Bool)0) [2024-02-07 14:49:46,291 INFO L76 edCorrectnessWitness]: Location invariant before [L808-L808] (z$r_buff0_thd1 == (_Bool)0) && (z$r_buff1_thd0 == (_Bool)0) [2024-02-07 14:49:46,291 INFO L76 edCorrectnessWitness]: Location invariant before [L795-L795] 0 <= __unbuffered_cnt [2024-02-07 14:49:46,291 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 14:49:46,292 INFO L76 edCorrectnessWitness]: Location invariant before [L825-L825] (z$w_buff0_used == (_Bool)1) && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) [2024-02-07 14:49:46,292 INFO L76 edCorrectnessWitness]: Location invariant before [L874-L874] ((((z$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$w_buff1_used == (_Bool)1)) [2024-02-07 14:49:46,292 INFO L76 edCorrectnessWitness]: Location invariant before [L863-L863] ((z$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 14:49:46,292 INFO L76 edCorrectnessWitness]: Location invariant before [L879-L879] (((0 <= z) && (z <= 2)) && (z <= 127)) && ((z == 0 || z == 1) || z == 2) [2024-02-07 14:49:46,292 INFO L76 edCorrectnessWitness]: Location invariant before [L753-L753] b == 1 [2024-02-07 14:49:46,292 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 14:49:46,292 INFO L76 edCorrectnessWitness]: Location invariant before [L806-L806] (z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)1) [2024-02-07 14:49:46,293 INFO L76 edCorrectnessWitness]: Location invariant before [L868-L868] weak$$choice2 == (_Bool)0 || weak$$choice2 == (_Bool)1 [2024-02-07 14:49:46,293 INFO L76 edCorrectnessWitness]: Location invariant before [L771-L771] y == 1 [2024-02-07 14:49:46,293 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 14:49:46,293 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 14:49:46,293 INFO L76 edCorrectnessWitness]: Location invariant before [L783-L783] y == 2 [2024-02-07 14:49:46,293 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 14:49:46,293 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 14:49:46,294 INFO L76 edCorrectnessWitness]: Location invariant before [L880-L880] z$flush_delayed == (_Bool)0 [2024-02-07 14:49:46,294 INFO L76 edCorrectnessWitness]: Location invariant before [L824-L824] (z$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$r_buff0_thd4 == (_Bool)1)) [2024-02-07 14:49:46,294 INFO L76 edCorrectnessWitness]: Location invariant before [L877-L877] ((((0 <= __unbuffered_p3_EBX) && (__unbuffered_p3_EBX <= 1)) && (y == 2)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && ((z == 2 && ((__unbuffered_p0_EAX == 0 && (__unbuffered_p3_EAX == 1 || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) || (((((0 <= __unbuffered_p0_EAX && 0 <= __unbuffered_p3_EAX) && __unbuffered_p0_EAX <= 1) && __unbuffered_p3_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) || (((((((((0 <= __unbuffered_p0_EAX && 0 <= __unbuffered_p3_EAX) && 0 <= z) && __unbuffered_p0_EAX <= 1) && __unbuffered_p3_EAX <= 1) && z <= 2) && z <= 127) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)) && ((z == 0 || z == 1) || z == 2))) [2024-02-07 14:49:46,294 INFO L76 edCorrectnessWitness]: Location invariant before [L793-L793] z$r_buff1_thd3 == (_Bool)0 [2024-02-07 14:49:46,294 INFO L76 edCorrectnessWitness]: Location invariant before [L796-L796] 1 <= __unbuffered_cnt [2024-02-07 14:49:46,294 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 14:49:46,295 INFO L76 edCorrectnessWitness]: Location invariant before [L867-L867] weak$$choice0 == (_Bool)0 || weak$$choice0 == (_Bool)1 [2024-02-07 14:49:46,295 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 14:49:46,295 INFO L76 edCorrectnessWitness]: Location invariant before [L862-L862] (z$r_buff0_thd0 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 14:49:46,295 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 14:49:46,295 INFO L76 edCorrectnessWitness]: Location invariant before [L831-L831] 0 <= __unbuffered_cnt [2024-02-07 14:49:46,295 INFO L76 edCorrectnessWitness]: Location invariant before [L786-L786] z == 1 [2024-02-07 14:49:46,295 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 14:49:46,296 INFO L76 edCorrectnessWitness]: Location invariant before [L760-L760] 0 <= __unbuffered_cnt [2024-02-07 14:49:46,296 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 14:49:46,305 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 14:49:46,305 INFO L76 edCorrectnessWitness]: Location invariant before [L789-L789] (z$r_buff0_thd3 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 14:49:46,305 INFO L76 edCorrectnessWitness]: Location invariant before [L776-L776] 1 <= __unbuffered_cnt [2024-02-07 14:49:46,306 INFO L76 edCorrectnessWitness]: Location invariant before [L811-L811] (z$r_buff1_thd3 == (_Bool)0) && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) [2024-02-07 14:49:46,307 INFO L76 edCorrectnessWitness]: Location invariant before [L755-L755] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 14:49:46,307 INFO L76 edCorrectnessWitness]: Location invariant before [L873-L873] ((((z$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$w_buff1_used == (_Bool)1)) [2024-02-07 14:49:46,307 INFO L76 edCorrectnessWitness]: Location invariant before [L775-L775] 0 <= __unbuffered_cnt [2024-02-07 14:49:46,307 INFO L76 edCorrectnessWitness]: Location invariant before [L768-L768] x == 1 [2024-02-07 14:49:46,307 INFO L76 edCorrectnessWitness]: Location invariant before [L809-L809] (z$r_buff0_thd2 == (_Bool)0) && (z$r_buff1_thd1 == (_Bool)0) [2024-02-07 14:49:46,307 INFO L76 edCorrectnessWitness]: Location invariant before [L813-L813] z$r_buff0_thd4 == (_Bool)1 [2024-02-07 14:49:46,307 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 14:49:46,308 INFO L76 edCorrectnessWitness]: Location invariant before [L761-L761] 1 <= __unbuffered_cnt [2024-02-07 14:49:46,308 INFO L76 edCorrectnessWitness]: Location invariant before [L864-L864] z$r_buff1_thd0 == (_Bool)0 [2024-02-07 14:49:46,308 INFO L76 edCorrectnessWitness]: Location invariant before [L859-L859] (z$r_buff1_thd0 == (_Bool)0 && z$w_buff1_used == (_Bool)1) || (z$r_buff0_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 14:49:46,308 INFO L76 edCorrectnessWitness]: Location invariant before [L821-L821] ((0 <= b) && (b <= 1)) && (b == 0 || b == 1) [2024-02-07 14:49:46,309 INFO L76 edCorrectnessWitness]: Location invariant before [L856-L856] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 14:49:46,309 INFO L76 edCorrectnessWitness]: Location invariant before [L828-L828] (z$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$r_buff0_thd4 == (_Bool)1))) [2024-02-07 14:49:46,309 INFO L76 edCorrectnessWitness]: Location invariant before [L857-L857] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 14:49:46,309 INFO L76 edCorrectnessWitness]: Location invariant before [L756-L756] ((0 <= __unbuffered_p0_EAX) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) [2024-02-07 14:49:46,309 INFO L76 edCorrectnessWitness]: Location invariant before [L816-L816] a == 1 [2024-02-07 14:49:46,309 INFO L76 edCorrectnessWitness]: Location invariant before [L791-L791] (z$r_buff0_thd3 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 14:49:46,310 INFO L76 edCorrectnessWitness]: Location invariant before [L829-L829] z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1 [2024-02-07 14:49:46,310 INFO L76 edCorrectnessWitness]: Location invariant before [L802-L802] ((((0 <= z$w_buff0) && (z$w_buff0 <= 2)) && (z$w_buff0 <= 127)) && (z$w_buff0 % 2 == 0)) && (z$w_buff0 == 0 || z$w_buff0 == 2) [2024-02-07 14:49:46,311 INFO L76 edCorrectnessWitness]: Location invariant before [L18-L18] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-07 14:49:46,311 INFO L76 edCorrectnessWitness]: Location invariant before [L832-L832] 1 <= __unbuffered_cnt [2024-02-07 14:49:46,311 INFO L76 edCorrectnessWitness]: Location invariant before [L861-L861] (z$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$w_buff0_used == (_Bool)1) [2024-02-07 14:49:46,311 INFO L76 edCorrectnessWitness]: Location invariant before [L804-L804] (z$w_buff0 == 2) && (z$w_buff0_used == (_Bool)0 || z$w_buff0_used == (_Bool)1) [2024-02-07 14:49:46,311 INFO L76 edCorrectnessWitness]: Location invariant before [L818-L818] ((0 <= a) && (a <= 1)) && (a == 0 || a == 1) [2024-02-07 14:49:46,311 INFO L76 edCorrectnessWitness]: Location invariant before [L860-L860] (z$r_buff0_thd0 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 14:49:46,312 INFO L76 edCorrectnessWitness]: Location invariant before [L807-L807] z$r_buff0_thd0 == (_Bool)0 [2024-02-07 14:49:46,312 INFO L76 edCorrectnessWitness]: Location invariant before [L870-L870] ((((z$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$w_buff1_used == (_Bool)1)) [2024-02-07 14:49:46,312 INFO L76 edCorrectnessWitness]: Location invariant before [L855-L855] 0 <= __unbuffered_cnt [2024-02-07 14:49:46,312 INFO L76 edCorrectnessWitness]: Location invariant before [L881-L881] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 14:49:46,312 INFO L76 edCorrectnessWitness]: Location invariant before [L805-L805] z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1 [2024-02-07 14:49:46,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:49:46,506 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 14:49:46,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:49:46,717 INFO L203 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 14:49:46,747 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 14:49:46,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:49:46,874 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:49:46,874 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:46 WrapperNode [2024-02-07 14:49:46,874 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:49:46,875 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:49:46,875 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:49:46,875 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:49:46,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:46" (1/1) ... [2024-02-07 14:49:46,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:46" (1/1) ... [2024-02-07 14:49:46,943 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 217 [2024-02-07 14:49:46,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:49:46,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:49:46,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:49:46,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:49:46,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:46" (1/1) ... [2024-02-07 14:49:46,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:46" (1/1) ... [2024-02-07 14:49:46,970 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:46" (1/1) ... [2024-02-07 14:49:46,990 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 14:49:46,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:46" (1/1) ... [2024-02-07 14:49:46,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:46" (1/1) ... [2024-02-07 14:49:47,011 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:46" (1/1) ... [2024-02-07 14:49:47,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:46" (1/1) ... [2024-02-07 14:49:47,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:46" (1/1) ... [2024-02-07 14:49:47,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:46" (1/1) ... [2024-02-07 14:49:47,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:49:47,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:49:47,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:49:47,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:49:47,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:46" (1/1) ... [2024-02-07 14:49:47,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:49:47,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:49:47,075 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 14:49:47,078 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 14:49:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:49:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:49:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 14:49:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 14:49:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 14:49:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 14:49:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:49:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:49:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:49:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-07 14:49:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-07 14:49:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-07 14:49:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-07 14:49:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-07 14:49:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-07 14:49:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-02-07 14:49:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-02-07 14:49:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:49:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:49:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 14:49:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 14:49:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 14:49:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 14:49:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:49:47,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:49:47,111 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 14:49:47,270 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:49:47,273 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:49:47,721 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:49:47,721 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:49:48,174 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:49:48,174 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 14:49:48,175 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:49:48 BoogieIcfgContainer [2024-02-07 14:49:48,175 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:49:48,178 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:49:48,178 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:49:48,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:49:48,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:49:45" (1/4) ... [2024-02-07 14:49:48,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4e6044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:49:48, skipping insertion in model container [2024-02-07 14:49:48,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:49:46" (2/4) ... [2024-02-07 14:49:48,182 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4e6044 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:49:48, skipping insertion in model container [2024-02-07 14:49:48,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:46" (3/4) ... [2024-02-07 14:49:48,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4e6044 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:49:48, skipping insertion in model container [2024-02-07 14:49:48,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:49:48" (4/4) ... [2024-02-07 14:49:48,184 INFO L112 eAbstractionObserver]: Analyzing ICFG mix046.opt.i [2024-02-07 14:49:48,199 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:49:48,199 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2024-02-07 14:49:48,199 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:49:48,318 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 14:49:48,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 120 transitions, 256 flow [2024-02-07 14:49:48,405 INFO L124 PetriNetUnfolderBase]: 1/116 cut-off events. [2024-02-07 14:49:48,405 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:49:48,411 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 14:49:48,411 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 120 transitions, 256 flow [2024-02-07 14:49:48,418 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 116 transitions, 244 flow [2024-02-07 14:49:48,430 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:49:48,436 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;@444e6b3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:49:48,437 INFO L358 AbstractCegarLoop]: Starting to check reachability of 121 error locations. [2024-02-07 14:49:48,442 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:49:48,442 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-02-07 14:49:48,442 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:49:48,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:49:48,443 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-07 14:49:48,444 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 118 more)] === [2024-02-07 14:49:48,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:49:48,501 INFO L85 PathProgramCache]: Analyzing trace with hash 23233430, now seen corresponding path program 1 times [2024-02-07 14:49:48,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:49:48,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690387655] [2024-02-07 14:49:48,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:49:48,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:49:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:49:48,774 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 14:49:48,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:49:48,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690387655] [2024-02-07 14:49:48,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690387655] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:49:48,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:49:48,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:49:48,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173764313] [2024-02-07 14:49:48,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:49:48,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-02-07 14:49:48,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:49:48,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-02-07 14:49:48,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-02-07 14:49:48,816 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 120 [2024-02-07 14:49:48,818 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 14:49:48,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:49:48,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 120 [2024-02-07 14:49:48,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:50:07,788 INFO L124 PetriNetUnfolderBase]: 128391/180372 cut-off events. [2024-02-07 14:50:07,789 INFO L125 PetriNetUnfolderBase]: For 439/439 co-relation queries the response was YES. [2024-02-07 14:50:08,309 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 14:50:09,571 INFO L140 encePairwiseOnDemand]: 85/120 looper letters, 49 selfloop transitions, 0 changer transitions 0/62 dead transitions. [2024-02-07 14:50:09,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 62 transitions, 234 flow [2024-02-07 14:50:09,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-02-07 14:50:09,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-02-07 14:50:09,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 118 transitions. [2024-02-07 14:50:09,585 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49166666666666664 [2024-02-07 14:50:09,586 INFO L175 Difference]: Start difference. First operand has 128 places, 116 transitions, 244 flow. Second operand 2 states and 118 transitions. [2024-02-07 14:50:09,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 62 transitions, 234 flow [2024-02-07 14:50:09,595 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 14:50:09,598 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 132 flow [2024-02-07 14:50:09,600 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 14:50:09,603 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -56 predicate places. [2024-02-07 14:50:09,603 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 132 flow [2024-02-07 14:50:09,604 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 14:50:09,604 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:50:09,604 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-07 14:50:09,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:50:09,605 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 118 more)] === [2024-02-07 14:50:09,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:50:09,606 INFO L85 PathProgramCache]: Analyzing trace with hash 720237184, now seen corresponding path program 1 times [2024-02-07 14:50:09,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:50:09,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069423721] [2024-02-07 14:50:09,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:50:09,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:50:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:50:09,701 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 14:50:09,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:50:09,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069423721] [2024-02-07 14:50:09,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069423721] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:50:09,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:50:09,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:50:09,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974121911] [2024-02-07 14:50:09,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:50:09,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:50:09,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:50:09,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:50:09,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:50:09,708 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 120 [2024-02-07 14:50:09,709 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 14:50:09,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:50:09,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 120 [2024-02-07 14:50:09,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:50:24,538 INFO L124 PetriNetUnfolderBase]: 125047/170306 cut-off events. [2024-02-07 14:50:24,539 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:50:24,969 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 14:50:25,912 INFO L140 encePairwiseOnDemand]: 117/120 looper letters, 86 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2024-02-07 14:50:25,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 101 transitions, 390 flow [2024-02-07 14:50:25,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:50:25,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:50:25,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2024-02-07 14:50:25,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3888888888888889 [2024-02-07 14:50:25,920 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 132 flow. Second operand 3 states and 140 transitions. [2024-02-07 14:50:25,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 101 transitions, 390 flow [2024-02-07 14:50:25,922 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 14:50:25,923 INFO L231 Difference]: Finished difference. Result has 75 places, 62 transitions, 140 flow [2024-02-07 14:50:25,924 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 14:50:25,925 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -53 predicate places. [2024-02-07 14:50:25,925 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 62 transitions, 140 flow [2024-02-07 14:50:25,925 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 14:50:25,925 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:50:25,925 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:50:25,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 14:50:25,926 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 118 more)] === [2024-02-07 14:50:25,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:50:25,926 INFO L85 PathProgramCache]: Analyzing trace with hash 658227523, now seen corresponding path program 1 times [2024-02-07 14:50:25,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:50:25,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815973970] [2024-02-07 14:50:25,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:50:25,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:50:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:50:26,007 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 14:50:26,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:50:26,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815973970] [2024-02-07 14:50:26,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815973970] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:50:26,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:50:26,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:50:26,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422669274] [2024-02-07 14:50:26,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:50:26,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:50:26,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:50:26,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:50:26,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:50:26,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 120 [2024-02-07 14:50:26,011 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 14:50:26,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:50:26,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 120 [2024-02-07 14:50:26,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand