./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe019_power.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/protection/safe019_power.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de 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/safe019_power.opt.i ./goblint.2024-06-19_11-23-25.files/protection/safe019_power.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-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 19:03:06,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 19:03:06,879 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 19:03:06,884 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 19:03:06,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 19:03:06,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 19:03:06,909 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 19:03:06,909 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 19:03:06,910 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 19:03:06,913 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 19:03:06,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 19:03:06,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 19:03:06,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 19:03:06,915 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 19:03:06,915 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 19:03:06,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 19:03:06,916 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 19:03:06,916 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 19:03:06,916 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 19:03:06,917 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 19:03:06,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 19:03:06,917 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 19:03:06,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 19:03:06,918 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 19:03:06,918 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 19:03:06,918 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 19:03:06,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 19:03:06,919 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 19:03:06,919 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 19:03:06,919 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 19:03:06,920 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 19:03:06,920 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 19:03:06,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:03:06,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 19:03:06,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 19:03:06,921 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 19:03:06,921 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 19:03:06,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 19:03:06,922 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 19:03:06,922 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 19:03:06,922 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 19:03:06,922 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 19:03:06,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 19:03:06,923 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 19:03:07,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 19:03:07,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 19:03:07,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 19:03:07,204 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 19:03:07,205 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 19:03:07,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/safe019_power.opt.yml/witness.yml [2024-06-27 19:03:07,470 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 19:03:07,471 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 19:03:07,472 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_power.opt.i [2024-06-27 19:03:08,528 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 19:03:08,781 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 19:03:08,784 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_power.opt.i [2024-06-27 19:03:08,813 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08e72d092/9e2ebd22af414d628431983ea28dc2ce/FLAG1d2341d5d [2024-06-27 19:03:08,827 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08e72d092/9e2ebd22af414d628431983ea28dc2ce [2024-06-27 19:03:08,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 19:03:08,829 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 19:03:08,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 19:03:08,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 19:03:08,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 19:03:08,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:03:07" (1/2) ... [2024-06-27 19:03:08,836 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f41f6d5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:03:08, skipping insertion in model container [2024-06-27 19:03:08,836 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:03:07" (1/2) ... [2024-06-27 19:03:08,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5d938486 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:03:08, skipping insertion in model container [2024-06-27 19:03:08,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:03:08" (2/2) ... [2024-06-27 19:03:08,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f41f6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:03:08, skipping insertion in model container [2024-06-27 19:03:08,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:03:08" (2/2) ... [2024-06-27 19:03:08,838 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 19:03:08,985 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 19:03:08,986 INFO L97 edCorrectnessWitness]: Location invariant before [L885-L885] ((((((((((((((((((((((((((((((((((((! multithreaded || __unbuffered_p2_EAX$w_buff1_used == (_Bool)0) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || __unbuffered_p2_EAX$flush_delayed == (_Bool)0)) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || __unbuffered_p2_EAX$mem_tmp == 0)) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || __unbuffered_p2_EAX$w_buff0_used == (_Bool)0)) && (! multithreaded || (__unbuffered_p0_EBX == 0 || __unbuffered_p0_EBX == 1))) && (! multithreaded || (x$mem_tmp == 0 || x$mem_tmp == 1))) && (! multithreaded || __unbuffered_p2_EAX$w_buff1 == 0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || (x$w_buff0 == 0 || x$w_buff0 == 1))) && (! multithreaded || (__unbuffered_p2_EAX$read_delayed_var == 0 || (__unbuffered_p2_EAX$read_delayed_var == & x && (*__unbuffered_p2_EAX$read_delayed_var == 0 || *__unbuffered_p2_EAX$read_delayed_var == 1))))) && (! multithreaded || ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2))) && (! multithreaded || __unbuffered_p2_EAX$w_buff0 == 0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || x$flush_delayed == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || (x$w_buff1 == 0 || x$w_buff1 == 1))) && (! multithreaded || ((y == 0 || y == 1) || y == 2))) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0) [2024-06-27 19:03:08,986 INFO L97 edCorrectnessWitness]: Location invariant before [L887-L887] ((((((((((((((((((((((((((((((((((((! multithreaded || __unbuffered_p2_EAX$w_buff1_used == (_Bool)0) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || __unbuffered_p2_EAX$flush_delayed == (_Bool)0)) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || __unbuffered_p2_EAX$mem_tmp == 0)) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || __unbuffered_p2_EAX$w_buff0_used == (_Bool)0)) && (! multithreaded || (__unbuffered_p0_EBX == 0 || __unbuffered_p0_EBX == 1))) && (! multithreaded || (x$mem_tmp == 0 || x$mem_tmp == 1))) && (! multithreaded || __unbuffered_p2_EAX$w_buff1 == 0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || (x$w_buff0 == 0 || x$w_buff0 == 1))) && (! multithreaded || (__unbuffered_p2_EAX$read_delayed_var == 0 || (__unbuffered_p2_EAX$read_delayed_var == & x && (*__unbuffered_p2_EAX$read_delayed_var == 0 || *__unbuffered_p2_EAX$read_delayed_var == 1))))) && (! multithreaded || ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2))) && (! multithreaded || __unbuffered_p2_EAX$w_buff0 == 0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || x$flush_delayed == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || (x$w_buff1 == 0 || x$w_buff1 == 1))) && (! multithreaded || ((y == 0 || y == 1) || y == 2))) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0) [2024-06-27 19:03:08,987 INFO L97 edCorrectnessWitness]: Location invariant before [L890-L890] ((((((((((((((((((((((((((((((((((((! multithreaded || __unbuffered_p2_EAX$w_buff1_used == (_Bool)0) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || __unbuffered_p2_EAX$flush_delayed == (_Bool)0)) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || __unbuffered_p2_EAX$mem_tmp == 0)) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || __unbuffered_p2_EAX$w_buff0_used == (_Bool)0)) && (! multithreaded || (__unbuffered_p0_EBX == 0 || __unbuffered_p0_EBX == 1))) && (! multithreaded || (x$mem_tmp == 0 || x$mem_tmp == 1))) && (! multithreaded || __unbuffered_p2_EAX$w_buff1 == 0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || (x$w_buff0 == 0 || x$w_buff0 == 1))) && (! multithreaded || (__unbuffered_p2_EAX$read_delayed_var == 0 || (__unbuffered_p2_EAX$read_delayed_var == & x && (*__unbuffered_p2_EAX$read_delayed_var == 0 || *__unbuffered_p2_EAX$read_delayed_var == 1))))) && (! multithreaded || ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2))) && (! multithreaded || __unbuffered_p2_EAX$w_buff0 == 0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || x$flush_delayed == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || (x$w_buff1 == 0 || x$w_buff1 == 1))) && (! multithreaded || ((y == 0 || y == 1) || y == 2))) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0) [2024-06-27 19:03:08,987 INFO L97 edCorrectnessWitness]: Location invariant before [L889-L889] ((((((((((((((((((((((((((((((((((((! multithreaded || __unbuffered_p2_EAX$w_buff1_used == (_Bool)0) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || __unbuffered_p2_EAX$flush_delayed == (_Bool)0)) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || __unbuffered_p2_EAX$mem_tmp == 0)) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || __unbuffered_p2_EAX$w_buff0_used == (_Bool)0)) && (! multithreaded || (__unbuffered_p0_EBX == 0 || __unbuffered_p0_EBX == 1))) && (! multithreaded || (x$mem_tmp == 0 || x$mem_tmp == 1))) && (! multithreaded || __unbuffered_p2_EAX$w_buff1 == 0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || (x$w_buff0 == 0 || x$w_buff0 == 1))) && (! multithreaded || (__unbuffered_p2_EAX$read_delayed_var == 0 || (__unbuffered_p2_EAX$read_delayed_var == & x && (*__unbuffered_p2_EAX$read_delayed_var == 0 || *__unbuffered_p2_EAX$read_delayed_var == 1))))) && (! multithreaded || ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2))) && (! multithreaded || __unbuffered_p2_EAX$w_buff0 == 0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || x$flush_delayed == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || (x$w_buff1 == 0 || x$w_buff1 == 1))) && (! multithreaded || ((y == 0 || y == 1) || y == 2))) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || __unbuffered_p2_EAX$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0) [2024-06-27 19:03:08,987 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 19:03:08,987 INFO L106 edCorrectnessWitness]: ghost_update [L883-L883] multithreaded = 1; [2024-06-27 19:03:09,032 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 19:03:09,165 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_power.opt.i[994,1007] [2024-06-27 19:03:09,353 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:03:09,361 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 19:03:09,391 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_power.opt.i[994,1007] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 19:03:09,493 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:03:09,522 INFO L206 MainTranslator]: Completed translation [2024-06-27 19:03:09,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:03:09 WrapperNode [2024-06-27 19:03:09,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 19:03:09,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 19:03:09,524 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 19:03:09,524 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 19:03:09,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:03:09" (1/1) ... [2024-06-27 19:03:09,567 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:03:09" (1/1) ... [2024-06-27 19:03:09,607 INFO L138 Inliner]: procedures = 176, calls = 88, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 237 [2024-06-27 19:03:09,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 19:03:09,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 19:03:09,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 19:03:09,612 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 19:03:09,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:03:09" (1/1) ... [2024-06-27 19:03:09,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:03:09" (1/1) ... [2024-06-27 19:03:09,630 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:03:09" (1/1) ... [2024-06-27 19:03:09,662 INFO L175 MemorySlicer]: Split 42 memory accesses to 2 slices as follows [2, 40]. 95 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 8 writes are split as follows [0, 8]. [2024-06-27 19:03:09,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:03:09" (1/1) ... [2024-06-27 19:03:09,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:03:09" (1/1) ... [2024-06-27 19:03:09,698 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:03:09" (1/1) ... [2024-06-27 19:03:09,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:03:09" (1/1) ... [2024-06-27 19:03:09,715 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:03:09" (1/1) ... [2024-06-27 19:03:09,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:03:09" (1/1) ... [2024-06-27 19:03:09,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 19:03:09,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 19:03:09,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 19:03:09,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 19:03:09,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:03:09" (1/1) ... [2024-06-27 19:03:09,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:03:09,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:03:09,749 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) [2024-06-27 19:03:09,803 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 [2024-06-27 19:03:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-27 19:03:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-27 19:03:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-27 19:03:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-27 19:03:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 19:03:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 19:03:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 19:03:09,818 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 19:03:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 19:03:09,818 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 19:03:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 19:03:09,819 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 19:03:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 19:03:09,820 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 19:03:09,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 19:03:09,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 19:03:09,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 19:03:09,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 19:03:09,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 19:03:09,822 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 19:03:09,967 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 19:03:09,968 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 19:03:10,485 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 19:03:10,485 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 19:03:10,790 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 19:03:10,790 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 19:03:10,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:03:10 BoogieIcfgContainer [2024-06-27 19:03:10,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 19:03:10,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 19:03:10,792 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 19:03:10,795 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 19:03:10,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:03:07" (1/4) ... [2024-06-27 19:03:10,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c403f4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:03:10, skipping insertion in model container [2024-06-27 19:03:10,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 07:03:08" (2/4) ... [2024-06-27 19:03:10,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c403f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:03:10, skipping insertion in model container [2024-06-27 19:03:10,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:03:09" (3/4) ... [2024-06-27 19:03:10,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c403f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:03:10, skipping insertion in model container [2024-06-27 19:03:10,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:03:10" (4/4) ... [2024-06-27 19:03:10,798 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_power.opt.i [2024-06-27 19:03:10,811 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 19:03:10,811 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-27 19:03:10,811 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 19:03:10,884 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 19:03:10,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 58 transitions, 132 flow [2024-06-27 19:03:10,951 INFO L124 PetriNetUnfolderBase]: 1/54 cut-off events. [2024-06-27 19:03:10,951 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 19:03:10,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 54 events. 1/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 77 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-06-27 19:03:10,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 58 transitions, 132 flow [2024-06-27 19:03:10,958 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 54 transitions, 120 flow [2024-06-27 19:03:11,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 19:03:11,018 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;@5c845fc5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 19:03:11,019 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-27 19:03:11,026 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 19:03:11,026 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-27 19:03:11,026 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 19:03:11,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:03:11,027 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 19:03:11,027 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 19:03:11,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:03:11,031 INFO L85 PathProgramCache]: Analyzing trace with hash 876888706, now seen corresponding path program 1 times [2024-06-27 19:03:11,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:03:11,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353911050] [2024-06-27 19:03:11,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:03:11,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:03:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:03:12,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:03:12,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:03:12,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353911050] [2024-06-27 19:03:12,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353911050] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:03:12,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:03:12,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 19:03:12,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958951318] [2024-06-27 19:03:12,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:03:12,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:03:12,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:03:12,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:03:12,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:03:12,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 58 [2024-06-27 19:03:12,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 54 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-06-27 19:03:12,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:03:12,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 58 [2024-06-27 19:03:12,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:03:17,700 INFO L124 PetriNetUnfolderBase]: 24360/34583 cut-off events. [2024-06-27 19:03:17,700 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-06-27 19:03:17,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67348 conditions, 34583 events. 24360/34583 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 1348. Compared 227324 event pairs, 14756 based on Foata normal form. 720/32359 useless extension candidates. Maximal degree in co-relation 67335. Up to 32360 conditions per place. [2024-06-27 19:03:17,890 INFO L140 encePairwiseOnDemand]: 46/58 looper letters, 60 selfloop transitions, 7 changer transitions 0/77 dead transitions. [2024-06-27 19:03:17,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 77 transitions, 309 flow [2024-06-27 19:03:17,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:03:17,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:03:17,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2024-06-27 19:03:17,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6551724137931034 [2024-06-27 19:03:17,904 INFO L175 Difference]: Start difference. First operand has 66 places, 54 transitions, 120 flow. Second operand 3 states and 114 transitions. [2024-06-27 19:03:17,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 77 transitions, 309 flow [2024-06-27 19:03:17,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 77 transitions, 302 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 19:03:17,916 INFO L231 Difference]: Finished difference. Result has 65 places, 59 transitions, 167 flow [2024-06-27 19:03:17,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=65, PETRI_TRANSITIONS=59} [2024-06-27 19:03:17,920 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -1 predicate places. [2024-06-27 19:03:17,920 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 59 transitions, 167 flow [2024-06-27 19:03:17,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-06-27 19:03:17,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:03:17,921 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:03:17,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 19:03:17,921 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 19:03:17,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:03:17,922 INFO L85 PathProgramCache]: Analyzing trace with hash 490239105, now seen corresponding path program 1 times [2024-06-27 19:03:17,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:03:17,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109346504] [2024-06-27 19:03:17,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:03:17,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:03:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:03:18,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:03:18,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:03:18,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109346504] [2024-06-27 19:03:18,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109346504] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:03:18,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:03:18,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 19:03:18,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057212745] [2024-06-27 19:03:18,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:03:18,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:03:18,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:03:18,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:03:18,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:03:18,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 58 [2024-06-27 19:03:18,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-06-27 19:03:18,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:03:18,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 58 [2024-06-27 19:03:18,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:03:20,298 INFO L124 PetriNetUnfolderBase]: 7354/11657 cut-off events. [2024-06-27 19:03:20,299 INFO L125 PetriNetUnfolderBase]: For 1673/1693 co-relation queries the response was YES. [2024-06-27 19:03:20,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24383 conditions, 11657 events. 7354/11657 cut-off events. For 1673/1693 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 83523 event pairs, 3219 based on Foata normal form. 0/11017 useless extension candidates. Maximal degree in co-relation 24371. Up to 7925 conditions per place. [2024-06-27 19:03:20,349 INFO L140 encePairwiseOnDemand]: 55/58 looper letters, 62 selfloop transitions, 3 changer transitions 0/83 dead transitions. [2024-06-27 19:03:20,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 83 transitions, 354 flow [2024-06-27 19:03:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:03:20,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:03:20,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-06-27 19:03:20,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7068965517241379 [2024-06-27 19:03:20,355 INFO L175 Difference]: Start difference. First operand has 65 places, 59 transitions, 167 flow. Second operand 3 states and 123 transitions. [2024-06-27 19:03:20,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 83 transitions, 354 flow [2024-06-27 19:03:20,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 83 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:03:20,361 INFO L231 Difference]: Finished difference. Result has 65 places, 57 transitions, 158 flow [2024-06-27 19:03:20,362 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=65, PETRI_TRANSITIONS=57} [2024-06-27 19:03:20,368 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -1 predicate places. [2024-06-27 19:03:20,368 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 57 transitions, 158 flow [2024-06-27 19:03:20,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-06-27 19:03:20,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:03:20,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:03:20,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 19:03:20,369 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 19:03:20,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:03:20,372 INFO L85 PathProgramCache]: Analyzing trace with hash 2116159748, now seen corresponding path program 1 times [2024-06-27 19:03:20,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:03:20,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849545261] [2024-06-27 19:03:20,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:03:20,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:03:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:03:22,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:03:22,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:03:22,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849545261] [2024-06-27 19:03:22,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849545261] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:03:22,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:03:22,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 19:03:22,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812683917] [2024-06-27 19:03:22,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:03:22,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 19:03:22,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:03:22,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 19:03:22,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 19:03:22,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 58 [2024-06-27 19:03:22,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 57 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 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) [2024-06-27 19:03:22,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:03:22,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 58 [2024-06-27 19:03:22,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:03:27,405 INFO L124 PetriNetUnfolderBase]: 25500/36145 cut-off events. [2024-06-27 19:03:27,405 INFO L125 PetriNetUnfolderBase]: For 8612/8612 co-relation queries the response was YES. [2024-06-27 19:03:27,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79910 conditions, 36145 events. 25500/36145 cut-off events. For 8612/8612 co-relation queries the response was YES. Maximal size of possible extension queue 1202. Compared 229376 event pairs, 12593 based on Foata normal form. 8/35396 useless extension candidates. Maximal degree in co-relation 79897. Up to 33723 conditions per place. [2024-06-27 19:03:27,569 INFO L140 encePairwiseOnDemand]: 48/58 looper letters, 73 selfloop transitions, 10 changer transitions 1/93 dead transitions. [2024-06-27 19:03:27,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 93 transitions, 416 flow [2024-06-27 19:03:27,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 19:03:27,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 19:03:27,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2024-06-27 19:03:27,574 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.603448275862069 [2024-06-27 19:03:27,574 INFO L175 Difference]: Start difference. First operand has 65 places, 57 transitions, 158 flow. Second operand 4 states and 140 transitions. [2024-06-27 19:03:27,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 93 transitions, 416 flow [2024-06-27 19:03:27,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 93 transitions, 408 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 19:03:27,579 INFO L231 Difference]: Finished difference. Result has 66 places, 59 transitions, 201 flow [2024-06-27 19:03:27,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=201, PETRI_PLACES=66, PETRI_TRANSITIONS=59} [2024-06-27 19:03:27,580 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 0 predicate places. [2024-06-27 19:03:27,581 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 59 transitions, 201 flow [2024-06-27 19:03:27,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 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) [2024-06-27 19:03:27,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:03:27,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:03:27,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 19:03:27,581 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 19:03:27,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:03:27,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1327696138, now seen corresponding path program 1 times [2024-06-27 19:03:27,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:03:27,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795912374] [2024-06-27 19:03:27,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:03:27,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:03:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:03:29,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:03:29,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:03:29,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795912374] [2024-06-27 19:03:29,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795912374] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:03:29,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:03:29,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 19:03:29,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338567225] [2024-06-27 19:03:29,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:03:29,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 19:03:29,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:03:29,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 19:03:29,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-27 19:03:29,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 58 [2024-06-27 19:03:29,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 201 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2024-06-27 19:03:29,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:03:29,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 58 [2024-06-27 19:03:29,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:03:32,941 INFO L124 PetriNetUnfolderBase]: 18194/26147 cut-off events. [2024-06-27 19:03:32,941 INFO L125 PetriNetUnfolderBase]: For 10759/10759 co-relation queries the response was YES. [2024-06-27 19:03:33,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61616 conditions, 26147 events. 18194/26147 cut-off events. For 10759/10759 co-relation queries the response was YES. Maximal size of possible extension queue 1040. Compared 168182 event pairs, 10361 based on Foata normal form. 6/25550 useless extension candidates. Maximal degree in co-relation 61601. Up to 24241 conditions per place. [2024-06-27 19:03:33,089 INFO L140 encePairwiseOnDemand]: 45/58 looper letters, 78 selfloop transitions, 12 changer transitions 0/99 dead transitions. [2024-06-27 19:03:33,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 99 transitions, 497 flow [2024-06-27 19:03:33,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 19:03:33,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 19:03:33,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 149 transitions. [2024-06-27 19:03:33,091 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137931034482759 [2024-06-27 19:03:33,091 INFO L175 Difference]: Start difference. First operand has 66 places, 59 transitions, 201 flow. Second operand 5 states and 149 transitions. [2024-06-27 19:03:33,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 99 transitions, 497 flow [2024-06-27 19:03:33,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 99 transitions, 468 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-06-27 19:03:33,094 INFO L231 Difference]: Finished difference. Result has 69 places, 69 transitions, 280 flow [2024-06-27 19:03:33,094 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=280, PETRI_PLACES=69, PETRI_TRANSITIONS=69} [2024-06-27 19:03:33,096 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 3 predicate places. [2024-06-27 19:03:33,096 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 69 transitions, 280 flow [2024-06-27 19:03:33,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2024-06-27 19:03:33,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:03:33,096 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:03:33,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 19:03:33,096 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 19:03:33,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:03:33,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1791094093, now seen corresponding path program 1 times [2024-06-27 19:03:33,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:03:33,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86504138] [2024-06-27 19:03:33,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:03:33,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:03:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:03:35,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:03:35,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:03:35,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86504138] [2024-06-27 19:03:35,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86504138] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:03:35,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:03:35,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 19:03:35,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868800626] [2024-06-27 19:03:35,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:03:35,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 19:03:35,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:03:35,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 19:03:35,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-27 19:03:35,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 58 [2024-06-27 19:03:35,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 69 transitions, 280 flow. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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) [2024-06-27 19:03:35,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:03:35,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 58 [2024-06-27 19:03:35,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:03:38,694 INFO L124 PetriNetUnfolderBase]: 18185/26136 cut-off events. [2024-06-27 19:03:38,694 INFO L125 PetriNetUnfolderBase]: For 22747/22747 co-relation queries the response was YES. [2024-06-27 19:03:38,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69791 conditions, 26136 events. 18185/26136 cut-off events. For 22747/22747 co-relation queries the response was YES. Maximal size of possible extension queue 1030. Compared 168032 event pairs, 10024 based on Foata normal form. 3/25536 useless extension candidates. Maximal degree in co-relation 69773. Up to 24226 conditions per place. [2024-06-27 19:03:38,843 INFO L140 encePairwiseOnDemand]: 46/58 looper letters, 96 selfloop transitions, 25 changer transitions 0/130 dead transitions. [2024-06-27 19:03:38,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 130 transitions, 744 flow [2024-06-27 19:03:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 19:03:38,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 19:03:38,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 180 transitions. [2024-06-27 19:03:38,845 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5172413793103449 [2024-06-27 19:03:38,845 INFO L175 Difference]: Start difference. First operand has 69 places, 69 transitions, 280 flow. Second operand 6 states and 180 transitions. [2024-06-27 19:03:38,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 130 transitions, 744 flow [2024-06-27 19:03:38,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 130 transitions, 702 flow, removed 13 selfloop flow, removed 2 redundant places. [2024-06-27 19:03:38,851 INFO L231 Difference]: Finished difference. Result has 75 places, 88 transitions, 470 flow [2024-06-27 19:03:38,851 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=470, PETRI_PLACES=75, PETRI_TRANSITIONS=88} [2024-06-27 19:03:38,854 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 9 predicate places. [2024-06-27 19:03:38,854 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 88 transitions, 470 flow [2024-06-27 19:03:38,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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) [2024-06-27 19:03:38,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:03:38,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:03:38,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 19:03:38,855 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 19:03:38,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:03:38,856 INFO L85 PathProgramCache]: Analyzing trace with hash -310656523, now seen corresponding path program 1 times [2024-06-27 19:03:38,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:03:38,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917622786] [2024-06-27 19:03:38,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:03:38,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:03:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:03:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:03:41,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:03:41,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917622786] [2024-06-27 19:03:41,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917622786] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:03:41,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:03:41,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 19:03:41,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690484393] [2024-06-27 19:03:41,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:03:41,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 19:03:41,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:03:41,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 19:03:41,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-27 19:03:41,196 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 58 [2024-06-27 19:03:41,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 88 transitions, 470 flow. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 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) [2024-06-27 19:03:41,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:03:41,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 58 [2024-06-27 19:03:41,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:03:44,959 INFO L124 PetriNetUnfolderBase]: 18567/26668 cut-off events. [2024-06-27 19:03:44,960 INFO L125 PetriNetUnfolderBase]: For 39437/39437 co-relation queries the response was YES. [2024-06-27 19:03:45,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79155 conditions, 26668 events. 18567/26668 cut-off events. For 39437/39437 co-relation queries the response was YES. Maximal size of possible extension queue 1032. Compared 170841 event pairs, 9716 based on Foata normal form. 39/26104 useless extension candidates. Maximal degree in co-relation 79133. Up to 24300 conditions per place. [2024-06-27 19:03:45,131 INFO L140 encePairwiseOnDemand]: 44/58 looper letters, 124 selfloop transitions, 30 changer transitions 0/163 dead transitions. [2024-06-27 19:03:45,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 163 transitions, 1060 flow [2024-06-27 19:03:45,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 19:03:45,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 19:03:45,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 219 transitions. [2024-06-27 19:03:45,133 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5394088669950738 [2024-06-27 19:03:45,133 INFO L175 Difference]: Start difference. First operand has 75 places, 88 transitions, 470 flow. Second operand 7 states and 219 transitions. [2024-06-27 19:03:45,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 163 transitions, 1060 flow [2024-06-27 19:03:45,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 163 transitions, 1010 flow, removed 24 selfloop flow, removed 1 redundant places. [2024-06-27 19:03:45,158 INFO L231 Difference]: Finished difference. Result has 82 places, 102 transitions, 655 flow [2024-06-27 19:03:45,159 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=655, PETRI_PLACES=82, PETRI_TRANSITIONS=102} [2024-06-27 19:03:45,159 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 16 predicate places. [2024-06-27 19:03:45,159 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 102 transitions, 655 flow [2024-06-27 19:03:45,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 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) [2024-06-27 19:03:45,160 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:03:45,160 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:03:45,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 19:03:45,160 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 19:03:45,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:03:45,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1048050425, now seen corresponding path program 1 times [2024-06-27 19:03:45,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:03:45,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735105154] [2024-06-27 19:03:45,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:03:45,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:03:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:03:47,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:03:47,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:03:47,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735105154] [2024-06-27 19:03:47,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735105154] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:03:47,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:03:47,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 19:03:47,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791928547] [2024-06-27 19:03:47,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:03:47,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 19:03:47,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:03:47,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 19:03:47,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-27 19:03:47,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 58 [2024-06-27 19:03:47,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 102 transitions, 655 flow. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 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) [2024-06-27 19:03:47,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:03:47,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 58 [2024-06-27 19:03:47,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:03:51,845 INFO L124 PetriNetUnfolderBase]: 23464/33522 cut-off events. [2024-06-27 19:03:51,850 INFO L125 PetriNetUnfolderBase]: For 78326/78326 co-relation queries the response was YES. [2024-06-27 19:03:51,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107759 conditions, 33522 events. 23464/33522 cut-off events. For 78326/78326 co-relation queries the response was YES. Maximal size of possible extension queue 1151. Compared 213276 event pairs, 11031 based on Foata normal form. 3/32768 useless extension candidates. Maximal degree in co-relation 107733. Up to 31043 conditions per place. [2024-06-27 19:03:52,122 INFO L140 encePairwiseOnDemand]: 46/58 looper letters, 111 selfloop transitions, 25 changer transitions 0/144 dead transitions. [2024-06-27 19:03:52,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 144 transitions, 1092 flow [2024-06-27 19:03:52,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 19:03:52,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 19:03:52,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 148 transitions. [2024-06-27 19:03:52,124 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5103448275862069 [2024-06-27 19:03:52,124 INFO L175 Difference]: Start difference. First operand has 82 places, 102 transitions, 655 flow. Second operand 5 states and 148 transitions. [2024-06-27 19:03:52,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 144 transitions, 1092 flow [2024-06-27 19:03:52,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 144 transitions, 1038 flow, removed 18 selfloop flow, removed 3 redundant places. [2024-06-27 19:03:52,235 INFO L231 Difference]: Finished difference. Result has 85 places, 112 transitions, 787 flow [2024-06-27 19:03:52,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=787, PETRI_PLACES=85, PETRI_TRANSITIONS=112} [2024-06-27 19:03:52,241 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 19 predicate places. [2024-06-27 19:03:52,241 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 112 transitions, 787 flow [2024-06-27 19:03:52,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 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) [2024-06-27 19:03:52,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:03:52,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:03:52,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 19:03:52,242 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 19:03:52,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:03:52,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1030522968, now seen corresponding path program 1 times [2024-06-27 19:03:52,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:03:52,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142960771] [2024-06-27 19:03:52,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:03:52,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:03:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:03:54,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:03:54,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:03:54,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142960771] [2024-06-27 19:03:54,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142960771] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:03:54,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:03:54,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-27 19:03:54,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888331238] [2024-06-27 19:03:54,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:03:54,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 19:03:54,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:03:54,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 19:03:54,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-27 19:03:54,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 58 [2024-06-27 19:03:54,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 112 transitions, 787 flow. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 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) [2024-06-27 19:03:54,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:03:54,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 58 [2024-06-27 19:03:54,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:04:00,472 INFO L124 PetriNetUnfolderBase]: 23508/33593 cut-off events. [2024-06-27 19:04:00,472 INFO L125 PetriNetUnfolderBase]: For 104960/104960 co-relation queries the response was YES. [2024-06-27 19:04:00,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115734 conditions, 33593 events. 23508/33593 cut-off events. For 104960/104960 co-relation queries the response was YES. Maximal size of possible extension queue 1151. Compared 213586 event pairs, 10695 based on Foata normal form. 3/32839 useless extension candidates. Maximal degree in co-relation 115705. Up to 30979 conditions per place. [2024-06-27 19:04:00,719 INFO L140 encePairwiseOnDemand]: 44/58 looper letters, 115 selfloop transitions, 40 changer transitions 0/163 dead transitions. [2024-06-27 19:04:00,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 163 transitions, 1274 flow [2024-06-27 19:04:00,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 19:04:00,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 19:04:00,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 180 transitions. [2024-06-27 19:04:00,721 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5172413793103449 [2024-06-27 19:04:00,721 INFO L175 Difference]: Start difference. First operand has 85 places, 112 transitions, 787 flow. Second operand 6 states and 180 transitions. [2024-06-27 19:04:00,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 163 transitions, 1274 flow [2024-06-27 19:04:00,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 163 transitions, 1234 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-06-27 19:04:00,800 INFO L231 Difference]: Finished difference. Result has 89 places, 117 transitions, 919 flow [2024-06-27 19:04:00,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=747, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=919, PETRI_PLACES=89, PETRI_TRANSITIONS=117} [2024-06-27 19:04:00,801 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 23 predicate places. [2024-06-27 19:04:00,801 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 117 transitions, 919 flow [2024-06-27 19:04:00,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 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) [2024-06-27 19:04:00,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:04:00,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:04:00,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 19:04:00,802 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 19:04:00,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:04:00,802 INFO L85 PathProgramCache]: Analyzing trace with hash 143182782, now seen corresponding path program 2 times [2024-06-27 19:04:00,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:04:00,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505979531] [2024-06-27 19:04:00,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:04:00,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:04:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:04:03,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:04:03,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:04:03,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505979531] [2024-06-27 19:04:03,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505979531] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:04:03,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:04:03,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-27 19:04:03,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325263399] [2024-06-27 19:04:03,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:04:03,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 19:04:03,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:04:03,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 19:04:03,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-27 19:04:03,303 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 58 [2024-06-27 19:04:03,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 117 transitions, 919 flow. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 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) [2024-06-27 19:04:03,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:04:03,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 58 [2024-06-27 19:04:03,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:04:08,996 INFO L124 PetriNetUnfolderBase]: 23503/33599 cut-off events. [2024-06-27 19:04:08,996 INFO L125 PetriNetUnfolderBase]: For 138160/138176 co-relation queries the response was YES. [2024-06-27 19:04:09,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123011 conditions, 33599 events. 23503/33599 cut-off events. For 138160/138176 co-relation queries the response was YES. Maximal size of possible extension queue 1151. Compared 214197 event pairs, 10797 based on Foata normal form. 15/32860 useless extension candidates. Maximal degree in co-relation 122980. Up to 31031 conditions per place. [2024-06-27 19:04:09,241 INFO L140 encePairwiseOnDemand]: 44/58 looper letters, 154 selfloop transitions, 32 changer transitions 0/194 dead transitions. [2024-06-27 19:04:09,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 194 transitions, 1546 flow [2024-06-27 19:04:09,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 19:04:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 19:04:09,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 238 transitions. [2024-06-27 19:04:09,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5129310344827587 [2024-06-27 19:04:09,243 INFO L175 Difference]: Start difference. First operand has 89 places, 117 transitions, 919 flow. Second operand 8 states and 238 transitions. [2024-06-27 19:04:09,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 194 transitions, 1546 flow [2024-06-27 19:04:09,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 194 transitions, 1454 flow, removed 15 selfloop flow, removed 4 redundant places. [2024-06-27 19:04:09,328 INFO L231 Difference]: Finished difference. Result has 94 places, 123 transitions, 996 flow [2024-06-27 19:04:09,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=996, PETRI_PLACES=94, PETRI_TRANSITIONS=123} [2024-06-27 19:04:09,328 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 28 predicate places. [2024-06-27 19:04:09,329 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 123 transitions, 996 flow [2024-06-27 19:04:09,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 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) [2024-06-27 19:04:09,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:04:09,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:04:09,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 19:04:09,329 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 19:04:09,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:04:09,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1656629354, now seen corresponding path program 1 times [2024-06-27 19:04:09,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:04:09,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860901493] [2024-06-27 19:04:09,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:04:09,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:04:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:04:11,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:04:11,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:04:11,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860901493] [2024-06-27 19:04:11,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860901493] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:04:11,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:04:11,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 19:04:11,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379490897] [2024-06-27 19:04:11,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:04:11,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 19:04:11,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:04:11,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 19:04:11,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-27 19:04:11,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 58 [2024-06-27 19:04:11,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 123 transitions, 996 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-06-27 19:04:11,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:04:11,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 58 [2024-06-27 19:04:11,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand