./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/mix005_power.oepc_pso.oepc_rmo.oepc.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/mix005_power.oepc_pso.oepc_rmo.oepc.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/mix005_power.oepc_pso.oepc_rmo.oepc.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 [2024-06-28 01:19:25,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-28 01:19:25,734 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-28 01:19:25,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-28 01:19:25,739 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-28 01:19:25,761 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-28 01:19:25,762 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-28 01:19:25,762 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-28 01:19:25,763 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-28 01:19:25,766 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-28 01:19:25,766 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-28 01:19:25,766 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-28 01:19:25,767 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-28 01:19:25,768 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-28 01:19:25,768 INFO L153 SettingsManager]: * Use SBE=true [2024-06-28 01:19:25,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-28 01:19:25,769 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-28 01:19:25,769 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-28 01:19:25,769 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-28 01:19:25,769 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-28 01:19:25,769 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-28 01:19:25,770 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-28 01:19:25,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-28 01:19:25,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-28 01:19:25,770 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-28 01:19:25,770 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-28 01:19:25,771 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-28 01:19:25,771 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-28 01:19:25,771 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-28 01:19:25,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-28 01:19:25,772 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-28 01:19:25,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-28 01:19:25,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:19:25,773 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-28 01:19:25,773 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-28 01:19:25,773 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-28 01:19:25,773 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-28 01:19:25,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-28 01:19:25,774 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-28 01:19:25,774 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-28 01:19:25,774 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-28 01:19:25,774 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-28 01:19:25,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-28 01:19:25,775 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-28 01:19:25,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-28 01:19:26,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-28 01:19:26,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-28 01:19:26,013 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-28 01:19:26,014 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-28 01:19:26,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/mix005_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml [2024-06-28 01:19:26,247 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-28 01:19:26,248 INFO L274 PluginConnector]: CDTParser initialized [2024-06-28 01:19:26,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i [2024-06-28 01:19:27,256 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-28 01:19:27,462 INFO L384 CDTParser]: Found 1 translation units. [2024-06-28 01:19:27,463 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i [2024-06-28 01:19:27,473 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/716baf3c2/61e15000e5e1423792fca91921158ea2/FLAG6c081ca4a [2024-06-28 01:19:27,484 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/716baf3c2/61e15000e5e1423792fca91921158ea2 [2024-06-28 01:19:27,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-28 01:19:27,485 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-28 01:19:27,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-28 01:19:27,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-28 01:19:27,491 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-28 01:19:27,492 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:19:26" (1/2) ... [2024-06-28 01:19:27,493 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46fe7bf1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:19:27, skipping insertion in model container [2024-06-28 01:19:27,493 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:19:26" (1/2) ... [2024-06-28 01:19:27,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@e677831 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:19:27, skipping insertion in model container [2024-06-28 01:19:27,494 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:19:27" (2/2) ... [2024-06-28 01:19:27,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46fe7bf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:27, skipping insertion in model container [2024-06-28 01:19:27,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:19:27" (2/2) ... [2024-06-28 01:19:27,495 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-28 01:19:27,654 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-28 01:19:27,658 INFO L97 edCorrectnessWitness]: Location invariant before [L878-L878] (((((((((((((((((((((((! multithreaded || (y == 0 || y == 1)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || (((((((((((((((((((((((0 <= __unbuffered_cnt && a$flush_delayed == (_Bool)0) && a$r_buff0_thd0 == (_Bool)0) && a$r_buff0_thd2 == (_Bool)0) && a$r_buff0_thd3 == (_Bool)0) && a$r_buff0_thd4 == (_Bool)0) && a$r_buff1_thd0 == (_Bool)0) && a$r_buff1_thd2 == (_Bool)0) && a$r_buff1_thd3 == (_Bool)0) && a$r_buff1_thd4 == (_Bool)0) && a$read_delayed == (_Bool)0) && a$read_delayed_var == 0) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && (a == 0 || a == 1)) && (a$mem_tmp == 0 || a$mem_tmp == 1)) && (a$w_buff0 == 0 || a$w_buff0 == 1)) && (a$w_buff1 == 0 || a$w_buff1 == 1)) && (y == 0 || y == 1)) && (z == 0 || z == 1)) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1))) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0) [2024-06-28 01:19:27,658 INFO L97 edCorrectnessWitness]: Location invariant before [L874-L874] (((((((((((((((((((((((! multithreaded || (y == 0 || y == 1)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || (((((((((((((((((((((((0 <= __unbuffered_cnt && a$flush_delayed == (_Bool)0) && a$r_buff0_thd0 == (_Bool)0) && a$r_buff0_thd2 == (_Bool)0) && a$r_buff0_thd3 == (_Bool)0) && a$r_buff0_thd4 == (_Bool)0) && a$r_buff1_thd0 == (_Bool)0) && a$r_buff1_thd2 == (_Bool)0) && a$r_buff1_thd3 == (_Bool)0) && a$r_buff1_thd4 == (_Bool)0) && a$read_delayed == (_Bool)0) && a$read_delayed_var == 0) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && (a == 0 || a == 1)) && (a$mem_tmp == 0 || a$mem_tmp == 1)) && (a$w_buff0 == 0 || a$w_buff0 == 1)) && (a$w_buff1 == 0 || a$w_buff1 == 1)) && (y == 0 || y == 1)) && (z == 0 || z == 1)) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1))) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0) [2024-06-28 01:19:27,658 INFO L97 edCorrectnessWitness]: Location invariant before [L876-L876] (((((((((((((((((((((((! multithreaded || (y == 0 || y == 1)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || (((((((((((((((((((((((0 <= __unbuffered_cnt && a$flush_delayed == (_Bool)0) && a$r_buff0_thd0 == (_Bool)0) && a$r_buff0_thd2 == (_Bool)0) && a$r_buff0_thd3 == (_Bool)0) && a$r_buff0_thd4 == (_Bool)0) && a$r_buff1_thd0 == (_Bool)0) && a$r_buff1_thd2 == (_Bool)0) && a$r_buff1_thd3 == (_Bool)0) && a$r_buff1_thd4 == (_Bool)0) && a$read_delayed == (_Bool)0) && a$read_delayed_var == 0) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && (a == 0 || a == 1)) && (a$mem_tmp == 0 || a$mem_tmp == 1)) && (a$w_buff0 == 0 || a$w_buff0 == 1)) && (a$w_buff1 == 0 || a$w_buff1 == 1)) && (y == 0 || y == 1)) && (z == 0 || z == 1)) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1))) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0) [2024-06-28 01:19:27,659 INFO L97 edCorrectnessWitness]: Location invariant before [L879-L879] (((((((((((((((((((((((! multithreaded || (y == 0 || y == 1)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || (((((((((((((((((((((((0 <= __unbuffered_cnt && a$flush_delayed == (_Bool)0) && a$r_buff0_thd0 == (_Bool)0) && a$r_buff0_thd2 == (_Bool)0) && a$r_buff0_thd3 == (_Bool)0) && a$r_buff0_thd4 == (_Bool)0) && a$r_buff1_thd0 == (_Bool)0) && a$r_buff1_thd2 == (_Bool)0) && a$r_buff1_thd3 == (_Bool)0) && a$r_buff1_thd4 == (_Bool)0) && a$read_delayed == (_Bool)0) && a$read_delayed_var == 0) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && (a == 0 || a == 1)) && (a$mem_tmp == 0 || a$mem_tmp == 1)) && (a$w_buff0 == 0 || a$w_buff0 == 1)) && (a$w_buff1 == 0 || a$w_buff1 == 1)) && (y == 0 || y == 1)) && (z == 0 || z == 1)) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1))) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0) [2024-06-28 01:19:27,659 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-28 01:19:27,659 INFO L106 edCorrectnessWitness]: ghost_update [L872-L872] multithreaded = 1; [2024-06-28 01:19:27,697 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-28 01:19:27,862 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/mix005_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-06-28 01:19:28,009 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:19:28,017 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-28 01:19:28,051 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/mix005_power.oepc_pso.oepc_rmo.oepc.i[969,982] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 01:19:28,156 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:19:28,184 INFO L206 MainTranslator]: Completed translation [2024-06-28 01:19:28,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:28 WrapperNode [2024-06-28 01:19:28,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-28 01:19:28,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-28 01:19:28,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-28 01:19:28,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-28 01:19:28,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:28" (1/1) ... [2024-06-28 01:19:28,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:28" (1/1) ... [2024-06-28 01:19:28,238 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 136 [2024-06-28 01:19:28,238 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-28 01:19:28,239 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-28 01:19:28,239 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-28 01:19:28,239 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-28 01:19:28,247 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:28" (1/1) ... [2024-06-28 01:19:28,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:28" (1/1) ... [2024-06-28 01:19:28,250 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:28" (1/1) ... [2024-06-28 01:19:28,268 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-28 01:19:28,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:28" (1/1) ... [2024-06-28 01:19:28,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:28" (1/1) ... [2024-06-28 01:19:28,277 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:28" (1/1) ... [2024-06-28 01:19:28,279 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:28" (1/1) ... [2024-06-28 01:19:28,281 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:28" (1/1) ... [2024-06-28 01:19:28,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:28" (1/1) ... [2024-06-28 01:19:28,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-28 01:19:28,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-28 01:19:28,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-28 01:19:28,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-28 01:19:28,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:28" (1/1) ... [2024-06-28 01:19:28,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:19:28,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:19:28,354 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) [2024-06-28 01:19:28,398 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 [2024-06-28 01:19:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-28 01:19:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-28 01:19:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-28 01:19:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-28 01:19:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-28 01:19:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-28 01:19:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-28 01:19:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-28 01:19:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-28 01:19:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-28 01:19:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-28 01:19:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-28 01:19:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-28 01:19:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-28 01:19:28,413 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-28 01:19:28,508 INFO L244 CfgBuilder]: Building ICFG [2024-06-28 01:19:28,510 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-28 01:19:28,912 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-28 01:19:28,913 INFO L293 CfgBuilder]: Performing block encoding [2024-06-28 01:19:29,051 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-28 01:19:29,051 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-28 01:19:29,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:19:29 BoogieIcfgContainer [2024-06-28 01:19:29,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-28 01:19:29,054 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-28 01:19:29,054 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-28 01:19:29,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-28 01:19:29,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:19:26" (1/4) ... [2024-06-28 01:19:29,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c016942 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 01:19:29, skipping insertion in model container [2024-06-28 01:19:29,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.06 01:19:27" (2/4) ... [2024-06-28 01:19:29,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c016942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 01:19:29, skipping insertion in model container [2024-06-28 01:19:29,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:19:28" (3/4) ... [2024-06-28 01:19:29,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c016942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 01:19:29, skipping insertion in model container [2024-06-28 01:19:29,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:19:29" (4/4) ... [2024-06-28 01:19:29,060 INFO L112 eAbstractionObserver]: Analyzing ICFG mix005_power.oepc_pso.oepc_rmo.oepc.i [2024-06-28 01:19:29,073 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-28 01:19:29,073 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-28 01:19:29,074 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-28 01:19:29,121 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-28 01:19:29,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 59 transitions, 134 flow [2024-06-28 01:19:29,182 INFO L124 PetriNetUnfolderBase]: 1/55 cut-off events. [2024-06-28 01:19:29,182 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 01:19:29,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 55 events. 1/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 100 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2024-06-28 01:19:29,185 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 59 transitions, 134 flow [2024-06-28 01:19:29,189 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 55 transitions, 122 flow [2024-06-28 01:19:29,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-28 01:19:29,206 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;@5c5b2245, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-28 01:19:29,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-28 01:19:29,209 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-28 01:19:29,210 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-28 01:19:29,210 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 01:19:29,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:29,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-28 01:19:29,211 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:29,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:29,217 INFO L85 PathProgramCache]: Analyzing trace with hash 387771664, now seen corresponding path program 1 times [2024-06-28 01:19:29,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:29,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815476661] [2024-06-28 01:19:29,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:29,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:30,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:30,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815476661] [2024-06-28 01:19:30,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815476661] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:30,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:30,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 01:19:30,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287499906] [2024-06-28 01:19:30,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:30,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:19:30,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:30,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:19:30,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:19:30,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 59 [2024-06-28 01:19:30,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-06-28 01:19:30,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:30,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 59 [2024-06-28 01:19:30,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:33,843 INFO L124 PetriNetUnfolderBase]: 25098/37507 cut-off events. [2024-06-28 01:19:33,843 INFO L125 PetriNetUnfolderBase]: For 215/215 co-relation queries the response was YES. [2024-06-28 01:19:33,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71262 conditions, 37507 events. 25098/37507 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 1403. Compared 272470 event pairs, 20823 based on Foata normal form. 876/35693 useless extension candidates. Maximal degree in co-relation 71249. Up to 33298 conditions per place. [2024-06-28 01:19:34,080 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 52 selfloop transitions, 6 changer transitions 0/73 dead transitions. [2024-06-28 01:19:34,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 73 transitions, 283 flow [2024-06-28 01:19:34,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:19:34,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:19:34,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-06-28 01:19:34,090 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6836158192090396 [2024-06-28 01:19:34,092 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 122 flow. Second operand 3 states and 121 transitions. [2024-06-28 01:19:34,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 73 transitions, 283 flow [2024-06-28 01:19:34,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 73 transitions, 276 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-28 01:19:34,097 INFO L231 Difference]: Finished difference. Result has 66 places, 59 transitions, 162 flow [2024-06-28 01:19:34,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=66, PETRI_TRANSITIONS=59} [2024-06-28 01:19:34,101 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -1 predicate places. [2024-06-28 01:19:34,102 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 59 transitions, 162 flow [2024-06-28 01:19:34,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-06-28 01:19:34,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:34,102 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-28 01:19:34,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-28 01:19:34,103 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:34,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:34,103 INFO L85 PathProgramCache]: Analyzing trace with hash 387772521, now seen corresponding path program 1 times [2024-06-28 01:19:34,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:34,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629983770] [2024-06-28 01:19:34,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:34,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:34,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:34,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:34,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629983770] [2024-06-28 01:19:34,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629983770] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:34,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:34,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 01:19:34,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300227247] [2024-06-28 01:19:34,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:34,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:19:34,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:34,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:19:34,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:19:34,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 59 [2024-06-28 01:19:34,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-06-28 01:19:34,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:34,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 59 [2024-06-28 01:19:34,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:35,156 INFO L124 PetriNetUnfolderBase]: 5199/9232 cut-off events. [2024-06-28 01:19:35,157 INFO L125 PetriNetUnfolderBase]: For 694/694 co-relation queries the response was YES. [2024-06-28 01:19:35,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17506 conditions, 9232 events. 5199/9232 cut-off events. For 694/694 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 73953 event pairs, 3384 based on Foata normal form. 0/8422 useless extension candidates. Maximal degree in co-relation 17494. Up to 6056 conditions per place. [2024-06-28 01:19:35,207 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 45 selfloop transitions, 3 changer transitions 0/78 dead transitions. [2024-06-28 01:19:35,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 78 transitions, 297 flow [2024-06-28 01:19:35,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:19:35,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:19:35,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2024-06-28 01:19:35,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7966101694915254 [2024-06-28 01:19:35,214 INFO L175 Difference]: Start difference. First operand has 66 places, 59 transitions, 162 flow. Second operand 3 states and 141 transitions. [2024-06-28 01:19:35,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 78 transitions, 297 flow [2024-06-28 01:19:35,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 78 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:19:35,221 INFO L231 Difference]: Finished difference. Result has 66 places, 57 transitions, 154 flow [2024-06-28 01:19:35,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=64, 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=154, PETRI_PLACES=66, PETRI_TRANSITIONS=57} [2024-06-28 01:19:35,222 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -1 predicate places. [2024-06-28 01:19:35,224 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 57 transitions, 154 flow [2024-06-28 01:19:35,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-06-28 01:19:35,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:35,225 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:35,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-28 01:19:35,229 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:35,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:35,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1012775142, now seen corresponding path program 1 times [2024-06-28 01:19:35,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:35,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665672182] [2024-06-28 01:19:35,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:35,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:35,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:35,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665672182] [2024-06-28 01:19:35,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665672182] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:35,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:35,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 01:19:35,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204104393] [2024-06-28 01:19:35,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:35,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:19:35,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:35,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:19:35,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:19:35,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 59 [2024-06-28 01:19:35,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 57 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-06-28 01:19:35,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:35,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 59 [2024-06-28 01:19:35,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:38,489 INFO L124 PetriNetUnfolderBase]: 21348/31878 cut-off events. [2024-06-28 01:19:38,490 INFO L125 PetriNetUnfolderBase]: For 7225/7225 co-relation queries the response was YES. [2024-06-28 01:19:38,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67895 conditions, 31878 events. 21348/31878 cut-off events. For 7225/7225 co-relation queries the response was YES. Maximal size of possible extension queue 1175. Compared 223832 event pairs, 15405 based on Foata normal form. 4/30759 useless extension candidates. Maximal degree in co-relation 67882. Up to 28350 conditions per place. [2024-06-28 01:19:38,646 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 64 selfloop transitions, 10 changer transitions 2/91 dead transitions. [2024-06-28 01:19:38,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 91 transitions, 402 flow [2024-06-28 01:19:38,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 01:19:38,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 01:19:38,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 152 transitions. [2024-06-28 01:19:38,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6440677966101694 [2024-06-28 01:19:38,647 INFO L175 Difference]: Start difference. First operand has 66 places, 57 transitions, 154 flow. Second operand 4 states and 152 transitions. [2024-06-28 01:19:38,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 91 transitions, 402 flow [2024-06-28 01:19:38,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 91 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-28 01:19:38,650 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 235 flow [2024-06-28 01:19:38,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2024-06-28 01:19:38,651 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2024-06-28 01:19:38,651 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 235 flow [2024-06-28 01:19:38,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-06-28 01:19:38,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:38,651 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:38,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-28 01:19:38,652 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:38,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:38,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1331256335, now seen corresponding path program 1 times [2024-06-28 01:19:38,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:38,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389198863] [2024-06-28 01:19:38,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:38,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:39,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:39,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:39,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389198863] [2024-06-28 01:19:39,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389198863] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:39,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:39,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 01:19:39,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97886066] [2024-06-28 01:19:39,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:39,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 01:19:39,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:39,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 01:19:39,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-28 01:19:39,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 59 [2024-06-28 01:19:39,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 235 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2024-06-28 01:19:39,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:39,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 59 [2024-06-28 01:19:39,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:41,850 INFO L124 PetriNetUnfolderBase]: 18581/28381 cut-off events. [2024-06-28 01:19:41,850 INFO L125 PetriNetUnfolderBase]: For 13465/13465 co-relation queries the response was YES. [2024-06-28 01:19:41,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65542 conditions, 28381 events. 18581/28381 cut-off events. For 13465/13465 co-relation queries the response was YES. Maximal size of possible extension queue 1093. Compared 202848 event pairs, 10734 based on Foata normal form. 10/27310 useless extension candidates. Maximal degree in co-relation 65527. Up to 24518 conditions per place. [2024-06-28 01:19:42,002 INFO L140 encePairwiseOnDemand]: 45/59 looper letters, 87 selfloop transitions, 23 changer transitions 0/125 dead transitions. [2024-06-28 01:19:42,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 125 transitions, 655 flow [2024-06-28 01:19:42,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:19:42,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:19:42,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 198 transitions. [2024-06-28 01:19:42,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6711864406779661 [2024-06-28 01:19:42,004 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 235 flow. Second operand 5 states and 198 transitions. [2024-06-28 01:19:42,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 125 transitions, 655 flow [2024-06-28 01:19:42,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 125 transitions, 640 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-06-28 01:19:42,009 INFO L231 Difference]: Finished difference. Result has 74 places, 80 transitions, 384 flow [2024-06-28 01:19:42,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=384, PETRI_PLACES=74, PETRI_TRANSITIONS=80} [2024-06-28 01:19:42,011 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 7 predicate places. [2024-06-28 01:19:42,011 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 80 transitions, 384 flow [2024-06-28 01:19:42,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2024-06-28 01:19:42,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:42,012 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:42,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-28 01:19:42,012 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:42,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:42,012 INFO L85 PathProgramCache]: Analyzing trace with hash 960382221, now seen corresponding path program 1 times [2024-06-28 01:19:42,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:42,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551379061] [2024-06-28 01:19:42,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:42,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:43,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:43,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:43,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551379061] [2024-06-28 01:19:43,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551379061] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:43,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:43,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:19:43,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294453289] [2024-06-28 01:19:43,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:43,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-28 01:19:43,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:43,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-28 01:19:43,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-28 01:19:43,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 59 [2024-06-28 01:19:43,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 80 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 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) [2024-06-28 01:19:43,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:43,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 59 [2024-06-28 01:19:43,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:45,821 INFO L124 PetriNetUnfolderBase]: 18665/26435 cut-off events. [2024-06-28 01:19:45,821 INFO L125 PetriNetUnfolderBase]: For 32304/32306 co-relation queries the response was YES. [2024-06-28 01:19:45,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75093 conditions, 26435 events. 18665/26435 cut-off events. For 32304/32306 co-relation queries the response was YES. Maximal size of possible extension queue 1010. Compared 168881 event pairs, 8164 based on Foata normal form. 10/26123 useless extension candidates. Maximal degree in co-relation 75074. Up to 24412 conditions per place. [2024-06-28 01:19:45,980 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 108 selfloop transitions, 42 changer transitions 0/165 dead transitions. [2024-06-28 01:19:45,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 165 transitions, 1042 flow [2024-06-28 01:19:45,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-28 01:19:45,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-28 01:19:45,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 241 transitions. [2024-06-28 01:19:45,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6807909604519774 [2024-06-28 01:19:45,982 INFO L175 Difference]: Start difference. First operand has 74 places, 80 transitions, 384 flow. Second operand 6 states and 241 transitions. [2024-06-28 01:19:45,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 165 transitions, 1042 flow [2024-06-28 01:19:45,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 165 transitions, 1030 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-28 01:19:45,994 INFO L231 Difference]: Finished difference. Result has 83 places, 99 transitions, 653 flow [2024-06-28 01:19:45,994 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=653, PETRI_PLACES=83, PETRI_TRANSITIONS=99} [2024-06-28 01:19:45,996 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 16 predicate places. [2024-06-28 01:19:45,997 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 99 transitions, 653 flow [2024-06-28 01:19:45,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 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) [2024-06-28 01:19:45,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:45,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:45,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-28 01:19:45,997 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:45,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:45,998 INFO L85 PathProgramCache]: Analyzing trace with hash 562981136, now seen corresponding path program 1 times [2024-06-28 01:19:45,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:45,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108420783] [2024-06-28 01:19:45,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:45,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:47,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:47,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:47,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108420783] [2024-06-28 01:19:47,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108420783] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:47,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:47,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-28 01:19:47,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449088442] [2024-06-28 01:19:47,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:47,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-28 01:19:47,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:47,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-28 01:19:47,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-28 01:19:47,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 59 [2024-06-28 01:19:47,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 99 transitions, 653 flow. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 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) [2024-06-28 01:19:47,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:47,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 59 [2024-06-28 01:19:47,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:50,208 INFO L124 PetriNetUnfolderBase]: 19083/29126 cut-off events. [2024-06-28 01:19:50,208 INFO L125 PetriNetUnfolderBase]: For 65389/65389 co-relation queries the response was YES. [2024-06-28 01:19:50,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91202 conditions, 29126 events. 19083/29126 cut-off events. For 65389/65389 co-relation queries the response was YES. Maximal size of possible extension queue 1092. Compared 207686 event pairs, 7447 based on Foata normal form. 44/28131 useless extension candidates. Maximal degree in co-relation 91177. Up to 24687 conditions per place. [2024-06-28 01:19:50,375 INFO L140 encePairwiseOnDemand]: 44/59 looper letters, 135 selfloop transitions, 31 changer transitions 0/181 dead transitions. [2024-06-28 01:19:50,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 181 transitions, 1312 flow [2024-06-28 01:19:50,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-28 01:19:50,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-28 01:19:50,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 273 transitions. [2024-06-28 01:19:50,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6610169491525424 [2024-06-28 01:19:50,377 INFO L175 Difference]: Start difference. First operand has 83 places, 99 transitions, 653 flow. Second operand 7 states and 273 transitions. [2024-06-28 01:19:50,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 181 transitions, 1312 flow [2024-06-28 01:19:50,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 181 transitions, 1254 flow, removed 29 selfloop flow, removed 0 redundant places. [2024-06-28 01:19:50,410 INFO L231 Difference]: Finished difference. Result has 90 places, 106 transitions, 762 flow [2024-06-28 01:19:50,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=613, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=762, PETRI_PLACES=90, PETRI_TRANSITIONS=106} [2024-06-28 01:19:50,413 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 23 predicate places. [2024-06-28 01:19:50,414 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 106 transitions, 762 flow [2024-06-28 01:19:50,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 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) [2024-06-28 01:19:50,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:50,414 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:50,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-28 01:19:50,414 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:50,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:50,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1671614795, now seen corresponding path program 1 times [2024-06-28 01:19:50,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:50,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090481873] [2024-06-28 01:19:50,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:50,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:51,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:51,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:51,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090481873] [2024-06-28 01:19:51,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090481873] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:51,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:51,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:19:51,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429792325] [2024-06-28 01:19:51,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:51,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-28 01:19:51,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:51,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-28 01:19:51,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-28 01:19:51,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-06-28 01:19:51,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 106 transitions, 762 flow. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 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) [2024-06-28 01:19:51,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:51,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-06-28 01:19:51,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:54,900 INFO L124 PetriNetUnfolderBase]: 22073/33374 cut-off events. [2024-06-28 01:19:54,900 INFO L125 PetriNetUnfolderBase]: For 78852/78852 co-relation queries the response was YES. [2024-06-28 01:19:55,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103014 conditions, 33374 events. 22073/33374 cut-off events. For 78852/78852 co-relation queries the response was YES. Maximal size of possible extension queue 1224. Compared 239074 event pairs, 10924 based on Foata normal form. 6/32420 useless extension candidates. Maximal degree in co-relation 102984. Up to 29332 conditions per place. [2024-06-28 01:19:55,134 INFO L140 encePairwiseOnDemand]: 49/59 looper letters, 101 selfloop transitions, 17 changer transitions 0/131 dead transitions. [2024-06-28 01:19:55,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 131 transitions, 1064 flow [2024-06-28 01:19:55,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:19:55,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:19:55,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 160 transitions. [2024-06-28 01:19:55,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5423728813559322 [2024-06-28 01:19:55,136 INFO L175 Difference]: Start difference. First operand has 90 places, 106 transitions, 762 flow. Second operand 5 states and 160 transitions. [2024-06-28 01:19:55,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 131 transitions, 1064 flow [2024-06-28 01:19:55,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 131 transitions, 990 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-06-28 01:19:55,180 INFO L231 Difference]: Finished difference. Result has 91 places, 106 transitions, 737 flow [2024-06-28 01:19:55,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=737, PETRI_PLACES=91, PETRI_TRANSITIONS=106} [2024-06-28 01:19:55,182 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 24 predicate places. [2024-06-28 01:19:55,182 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 106 transitions, 737 flow [2024-06-28 01:19:55,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 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) [2024-06-28 01:19:55,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:55,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:55,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-28 01:19:55,183 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:55,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:55,183 INFO L85 PathProgramCache]: Analyzing trace with hash -912319855, now seen corresponding path program 1 times [2024-06-28 01:19:55,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:55,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894223328] [2024-06-28 01:19:55,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:55,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:19:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:19:56,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:19:56,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:19:56,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894223328] [2024-06-28 01:19:56,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894223328] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:19:56,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:19:56,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-28 01:19:56,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294120272] [2024-06-28 01:19:56,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:19:56,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-28 01:19:56,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:19:56,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-28 01:19:56,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-28 01:19:56,250 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-06-28 01:19:56,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 106 transitions, 737 flow. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:19:56,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:19:56,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-06-28 01:19:56,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:19:59,490 INFO L124 PetriNetUnfolderBase]: 22131/33289 cut-off events. [2024-06-28 01:19:59,490 INFO L125 PetriNetUnfolderBase]: For 82652/82652 co-relation queries the response was YES. [2024-06-28 01:19:59,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103241 conditions, 33289 events. 22131/33289 cut-off events. For 82652/82652 co-relation queries the response was YES. Maximal size of possible extension queue 1197. Compared 234342 event pairs, 9651 based on Foata normal form. 12/32215 useless extension candidates. Maximal degree in co-relation 103209. Up to 29145 conditions per place. [2024-06-28 01:19:59,910 INFO L140 encePairwiseOnDemand]: 45/59 looper letters, 112 selfloop transitions, 27 changer transitions 0/152 dead transitions. [2024-06-28 01:19:59,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 152 transitions, 1207 flow [2024-06-28 01:19:59,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-28 01:19:59,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-28 01:19:59,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2024-06-28 01:19:59,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5706214689265536 [2024-06-28 01:19:59,912 INFO L175 Difference]: Start difference. First operand has 91 places, 106 transitions, 737 flow. Second operand 6 states and 202 transitions. [2024-06-28 01:19:59,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 152 transitions, 1207 flow [2024-06-28 01:19:59,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 152 transitions, 1156 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-06-28 01:19:59,959 INFO L231 Difference]: Finished difference. Result has 93 places, 110 transitions, 799 flow [2024-06-28 01:19:59,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=799, PETRI_PLACES=93, PETRI_TRANSITIONS=110} [2024-06-28 01:19:59,961 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 26 predicate places. [2024-06-28 01:19:59,961 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 110 transitions, 799 flow [2024-06-28 01:19:59,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:19:59,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:19:59,962 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:19:59,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-28 01:19:59,962 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:19:59,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:19:59,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1735392895, now seen corresponding path program 2 times [2024-06-28 01:19:59,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:19:59,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563431244] [2024-06-28 01:19:59,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:19:59,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:20:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:20:00,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:20:00,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:20:00,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563431244] [2024-06-28 01:20:00,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563431244] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:20:00,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:20:00,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-28 01:20:00,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185368745] [2024-06-28 01:20:00,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:20:00,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-28 01:20:00,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:20:00,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-28 01:20:00,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-28 01:20:00,953 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-06-28 01:20:00,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 110 transitions, 799 flow. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:20:00,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:20:00,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-06-28 01:20:00,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:20:04,314 INFO L124 PetriNetUnfolderBase]: 22041/33293 cut-off events. [2024-06-28 01:20:04,314 INFO L125 PetriNetUnfolderBase]: For 90253/90253 co-relation queries the response was YES. [2024-06-28 01:20:04,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104181 conditions, 33293 events. 22041/33293 cut-off events. For 90253/90253 co-relation queries the response was YES. Maximal size of possible extension queue 1224. Compared 238344 event pairs, 10900 based on Foata normal form. 6/32336 useless extension candidates. Maximal degree in co-relation 104149. Up to 29249 conditions per place. [2024-06-28 01:20:04,570 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 114 selfloop transitions, 16 changer transitions 0/143 dead transitions. [2024-06-28 01:20:04,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 143 transitions, 1145 flow [2024-06-28 01:20:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-28 01:20:04,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-28 01:20:04,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 190 transitions. [2024-06-28 01:20:04,572 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.536723163841808 [2024-06-28 01:20:04,572 INFO L175 Difference]: Start difference. First operand has 93 places, 110 transitions, 799 flow. Second operand 6 states and 190 transitions. [2024-06-28 01:20:04,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 143 transitions, 1145 flow [2024-06-28 01:20:04,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 143 transitions, 1098 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-06-28 01:20:04,638 INFO L231 Difference]: Finished difference. Result has 96 places, 110 transitions, 795 flow [2024-06-28 01:20:04,638 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=795, PETRI_PLACES=96, PETRI_TRANSITIONS=110} [2024-06-28 01:20:04,639 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 29 predicate places. [2024-06-28 01:20:04,639 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 110 transitions, 795 flow [2024-06-28 01:20:04,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:20:04,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:20:04,639 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:20:04,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-28 01:20:04,640 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:20:04,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:20:04,640 INFO L85 PathProgramCache]: Analyzing trace with hash 267546961, now seen corresponding path program 1 times [2024-06-28 01:20:04,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:20:04,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140646642] [2024-06-28 01:20:04,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:20:04,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:20:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:20:06,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:20:06,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:20:06,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140646642] [2024-06-28 01:20:06,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140646642] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:20:06,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:20:06,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-28 01:20:06,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361300914] [2024-06-28 01:20:06,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:20:06,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-28 01:20:06,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:20:06,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-28 01:20:06,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-28 01:20:06,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-06-28 01:20:06,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 110 transitions, 795 flow. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-06-28 01:20:06,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:20:06,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-06-28 01:20:06,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:20:10,667 INFO L124 PetriNetUnfolderBase]: 26753/40339 cut-off events. [2024-06-28 01:20:10,668 INFO L125 PetriNetUnfolderBase]: For 113216/113216 co-relation queries the response was YES. [2024-06-28 01:20:10,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124497 conditions, 40339 events. 26753/40339 cut-off events. For 113216/113216 co-relation queries the response was YES. Maximal size of possible extension queue 1433. Compared 292756 event pairs, 13252 based on Foata normal form. 6/39106 useless extension candidates. Maximal degree in co-relation 124464. Up to 35364 conditions per place. [2024-06-28 01:20:10,998 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 129 selfloop transitions, 27 changer transitions 0/168 dead transitions. [2024-06-28 01:20:10,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 168 transitions, 1330 flow [2024-06-28 01:20:10,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-28 01:20:10,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-28 01:20:11,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 218 transitions. [2024-06-28 01:20:11,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5278450363196125 [2024-06-28 01:20:11,000 INFO L175 Difference]: Start difference. First operand has 96 places, 110 transitions, 795 flow. Second operand 7 states and 218 transitions. [2024-06-28 01:20:11,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 168 transitions, 1330 flow [2024-06-28 01:20:11,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 168 transitions, 1249 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-06-28 01:20:11,089 INFO L231 Difference]: Finished difference. Result has 98 places, 120 transitions, 891 flow [2024-06-28 01:20:11,090 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=725, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=891, PETRI_PLACES=98, PETRI_TRANSITIONS=120} [2024-06-28 01:20:11,091 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 31 predicate places. [2024-06-28 01:20:11,091 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 120 transitions, 891 flow [2024-06-28 01:20:11,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-06-28 01:20:11,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:20:11,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:20:11,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-28 01:20:11,091 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-28 01:20:11,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:20:11,092 INFO L85 PathProgramCache]: Analyzing trace with hash 981543807, now seen corresponding path program 1 times [2024-06-28 01:20:11,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:20:11,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205083140] [2024-06-28 01:20:11,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:20:11,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:20:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat