./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-05-07_14-17-48.files/protection/mix014_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b44c8288 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/mix014_power.oepc_pso.oepc_rmo.oepc.i ./goblint.2024-05-07_14-17-48.files/protection/mix014_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-wip.fs.witness-ghost-b44c828-m [2024-05-12 13:09:11,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-12 13:09:11,951 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-05-12 13:09:11,956 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-12 13:09:11,956 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-12 13:09:12,113 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-12 13:09:12,114 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-12 13:09:12,114 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-12 13:09:12,114 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-05-12 13:09:12,115 INFO L153 SettingsManager]: * Use memory slicer=true [2024-05-12 13:09:12,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-12 13:09:12,115 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-12 13:09:12,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-12 13:09:12,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-12 13:09:12,116 INFO L153 SettingsManager]: * Use SBE=true [2024-05-12 13:09:12,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-12 13:09:12,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-12 13:09:12,117 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-12 13:09:12,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-12 13:09:12,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-12 13:09:12,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-12 13:09:12,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-12 13:09:12,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-12 13:09:12,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-12 13:09:12,119 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-05-12 13:09:12,119 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-12 13:09:12,119 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-12 13:09:12,120 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-12 13:09:12,120 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-12 13:09:12,120 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-12 13:09:12,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-05-12 13:09:12,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-12 13:09:12,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 13:09:12,121 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-12 13:09:12,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-12 13:09:12,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-12 13:09:12,122 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-12 13:09:12,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-12 13:09:12,122 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-12 13:09:12,122 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-05-12 13:09:12,122 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-12 13:09:12,123 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-05-12 13:09:12,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-05-12 13:09:12,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-05-12 13:09:12,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-12 13:09:12,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-12 13:09:12,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-12 13:09:12,364 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-12 13:09:12,364 INFO L274 PluginConnector]: CDTParser initialized [2024-05-12 13:09:12,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i [2024-05-12 13:09:13,382 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-12 13:09:13,547 INFO L384 CDTParser]: Found 1 translation units. [2024-05-12 13:09:13,548 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i [2024-05-12 13:09:13,560 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaba3fd40/cfdc443cd7854b588e52c5e14251751f/FLAG7e3a148a6 [2024-05-12 13:09:13,574 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaba3fd40/cfdc443cd7854b588e52c5e14251751f [2024-05-12 13:09:13,576 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-05-12 13:09:13,576 INFO L274 PluginConnector]: Witness Parser initialized [2024-05-12 13:09:13,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-07_14-17-48.files/protection/mix014_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml [2024-05-12 13:09:13,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-12 13:09:13,769 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-12 13:09:13,770 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-12 13:09:13,770 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-12 13:09:13,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-12 13:09:13,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 01:09:13" (1/2) ... [2024-05-12 13:09:13,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fef4231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:09:13, skipping insertion in model container [2024-05-12 13:09:13,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 01:09:13" (1/2) ... [2024-05-12 13:09:13,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7494e1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:09:13, skipping insertion in model container [2024-05-12 13:09:13,777 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 01:09:13" (2/2) ... [2024-05-12 13:09:13,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fef4231 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:09:13, skipping insertion in model container [2024-05-12 13:09:13,777 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 01:09:13" (2/2) ... [2024-05-12 13:09:13,777 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-05-12 13:09:13,870 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-05-12 13:09:13,872 INFO L97 edCorrectnessWitness]: Location invariant before [L874-L874] (((((((((((((((((((((((! multithreaded || ((0 <= a$w_buff0 && a$w_buff0 <= 1) && (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || ((0 <= __unbuffered_p3_EBX && __unbuffered_p3_EBX <= 1) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)))) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p1_EBX && __unbuffered_p1_EBX <= 1) && (__unbuffered_p1_EBX == 0 || __unbuffered_p1_EBX == 1)))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 2) && __unbuffered_p1_EAX <= 127) && ((__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1) || __unbuffered_p1_EAX == 2)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= a$w_buff1 && a$w_buff1 <= 1) && (a$w_buff1 == 0 || a$w_buff1 == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= a$mem_tmp && a$mem_tmp <= 1) && (a$mem_tmp == 0 || a$mem_tmp == 1))) [2024-05-12 13:09:13,872 INFO L97 edCorrectnessWitness]: Location invariant before [L876-L876] (((((((((((((((((((((((! multithreaded || ((0 <= a$w_buff0 && a$w_buff0 <= 1) && (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || ((0 <= __unbuffered_p3_EBX && __unbuffered_p3_EBX <= 1) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)))) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p1_EBX && __unbuffered_p1_EBX <= 1) && (__unbuffered_p1_EBX == 0 || __unbuffered_p1_EBX == 1)))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 2) && __unbuffered_p1_EAX <= 127) && ((__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1) || __unbuffered_p1_EAX == 2)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= a$w_buff1 && a$w_buff1 <= 1) && (a$w_buff1 == 0 || a$w_buff1 == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= a$mem_tmp && a$mem_tmp <= 1) && (a$mem_tmp == 0 || a$mem_tmp == 1))) [2024-05-12 13:09:13,872 INFO L97 edCorrectnessWitness]: Location invariant before [L878-L878] (((((((((((((((((((((((! multithreaded || ((0 <= a$w_buff0 && a$w_buff0 <= 1) && (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || ((0 <= __unbuffered_p3_EBX && __unbuffered_p3_EBX <= 1) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)))) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p1_EBX && __unbuffered_p1_EBX <= 1) && (__unbuffered_p1_EBX == 0 || __unbuffered_p1_EBX == 1)))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 2) && __unbuffered_p1_EAX <= 127) && ((__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1) || __unbuffered_p1_EAX == 2)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= a$w_buff1 && a$w_buff1 <= 1) && (a$w_buff1 == 0 || a$w_buff1 == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= a$mem_tmp && a$mem_tmp <= 1) && (a$mem_tmp == 0 || a$mem_tmp == 1))) [2024-05-12 13:09:13,872 INFO L97 edCorrectnessWitness]: Location invariant before [L879-L879] (((((((((((((((((((((((! multithreaded || ((0 <= a$w_buff0 && a$w_buff0 <= 1) && (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || ((0 <= __unbuffered_p3_EBX && __unbuffered_p3_EBX <= 1) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)))) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p1_EBX && __unbuffered_p1_EBX <= 1) && (__unbuffered_p1_EBX == 0 || __unbuffered_p1_EBX == 1)))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || (((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 2) && __unbuffered_p1_EAX <= 127) && ((__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1) || __unbuffered_p1_EAX == 2)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= a$w_buff1 && a$w_buff1 <= 1) && (a$w_buff1 == 0 || a$w_buff1 == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= a$mem_tmp && a$mem_tmp <= 1) && (a$mem_tmp == 0 || a$mem_tmp == 1))) [2024-05-12 13:09:13,872 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-05-12 13:09:13,873 INFO L106 edCorrectnessWitness]: ghost_update [L872-L872] multithreaded = 1; [2024-05-12 13:09:13,910 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-12 13:09:14,030 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-05-12 13:09:14,204 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 13:09:14,232 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-05-12 13:09:14,263 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i[969,982] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-05-12 13:09:14,364 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 13:09:14,392 INFO L206 MainTranslator]: Completed translation [2024-05-12 13:09:14,392 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:09:14 WrapperNode [2024-05-12 13:09:14,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-12 13:09:14,393 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-12 13:09:14,393 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-12 13:09:14,394 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-12 13:09:14,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:09:14" (1/1) ... [2024-05-12 13:09:14,411 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:09:14" (1/1) ... [2024-05-12 13:09:14,439 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 152 [2024-05-12 13:09:14,439 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-12 13:09:14,440 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-12 13:09:14,440 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-12 13:09:14,440 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-12 13:09:14,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:09:14" (1/1) ... [2024-05-12 13:09:14,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:09:14" (1/1) ... [2024-05-12 13:09:14,455 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:09:14" (1/1) ... [2024-05-12 13:09:14,474 INFO L175 MemorySlicer]: Split 6 memory accesses to 5 slices as follows [2, 1, 1, 1, 1]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-05-12 13:09:14,474 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:09:14" (1/1) ... [2024-05-12 13:09:14,474 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:09:14" (1/1) ... [2024-05-12 13:09:14,484 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:09:14" (1/1) ... [2024-05-12 13:09:14,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:09:14" (1/1) ... [2024-05-12 13:09:14,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:09:14" (1/1) ... [2024-05-12 13:09:14,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:09:14" (1/1) ... [2024-05-12 13:09:14,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-12 13:09:14,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-12 13:09:14,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-12 13:09:14,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-12 13:09:14,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:09:14" (1/1) ... [2024-05-12 13:09:14,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 13:09:14,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-05-12 13:09:14,570 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) [2024-05-12 13:09:14,598 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 [2024-05-12 13:09:14,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-05-12 13:09:14,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-05-12 13:09:14,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-05-12 13:09:14,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-05-12 13:09:14,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-05-12 13:09:14,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-12 13:09:14,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-12 13:09:14,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-12 13:09:14,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-12 13:09:14,634 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-05-12 13:09:14,634 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-05-12 13:09:14,634 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-05-12 13:09:14,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-05-12 13:09:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-05-12 13:09:14,636 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-05-12 13:09:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-05-12 13:09:14,637 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-05-12 13:09:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-05-12 13:09:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-05-12 13:09:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-05-12 13:09:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-05-12 13:09:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-05-12 13:09:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-12 13:09:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-12 13:09:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-12 13:09:14,639 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-12 13:09:14,782 INFO L244 CfgBuilder]: Building ICFG [2024-05-12 13:09:14,783 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-12 13:09:15,090 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-05-12 13:09:15,090 INFO L293 CfgBuilder]: Performing block encoding [2024-05-12 13:09:15,321 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-12 13:09:15,321 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-12 13:09:15,322 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 01:09:15 BoogieIcfgContainer [2024-05-12 13:09:15,333 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-12 13:09:15,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-12 13:09:15,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-12 13:09:15,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-12 13:09:15,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.05 01:09:13" (1/4) ... [2024-05-12 13:09:15,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b459715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 01:09:15, skipping insertion in model container [2024-05-12 13:09:15,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 01:09:13" (2/4) ... [2024-05-12 13:09:15,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b459715 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 01:09:15, skipping insertion in model container [2024-05-12 13:09:15,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:09:14" (3/4) ... [2024-05-12 13:09:15,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b459715 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 01:09:15, skipping insertion in model container [2024-05-12 13:09:15,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 01:09:15" (4/4) ... [2024-05-12 13:09:15,341 INFO L112 eAbstractionObserver]: Analyzing ICFG mix014_power.oepc_pso.oepc_rmo.oepc.i [2024-05-12 13:09:15,353 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-12 13:09:15,354 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-05-12 13:09:15,354 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-12 13:09:15,401 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-05-12 13:09:15,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 60 transitions, 136 flow [2024-05-12 13:09:15,454 INFO L124 PetriNetUnfolderBase]: 1/56 cut-off events. [2024-05-12 13:09:15,454 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 13:09:15,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 56 events. 1/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2024-05-12 13:09:15,457 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 60 transitions, 136 flow [2024-05-12 13:09:15,459 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 56 transitions, 124 flow [2024-05-12 13:09:15,466 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-12 13:09:15,471 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;@2598da69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-12 13:09:15,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-05-12 13:09:15,474 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-05-12 13:09:15,475 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-05-12 13:09:15,475 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 13:09:15,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:09:15,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-05-12 13:09:15,476 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:09:15,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:09:15,480 INFO L85 PathProgramCache]: Analyzing trace with hash -570649045, now seen corresponding path program 1 times [2024-05-12 13:09:15,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:09:15,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184782653] [2024-05-12 13:09:15,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:09:15,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:09:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:09:16,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:09:16,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:09:16,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184782653] [2024-05-12 13:09:16,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184782653] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:09:16,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:09:16,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-05-12 13:09:16,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977371182] [2024-05-12 13:09:16,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:09:16,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 13:09:16,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:09:16,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 13:09:16,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 13:09:16,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 60 [2024-05-12 13:09:16,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 56 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-05-12 13:09:16,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:09:16,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 60 [2024-05-12 13:09:16,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:09:20,013 INFO L124 PetriNetUnfolderBase]: 25098/37456 cut-off events. [2024-05-12 13:09:20,014 INFO L125 PetriNetUnfolderBase]: For 214/214 co-relation queries the response was YES. [2024-05-12 13:09:20,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71213 conditions, 37456 events. 25098/37456 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 1432. Compared 273562 event pairs, 20823 based on Foata normal form. 876/35818 useless extension candidates. Maximal degree in co-relation 71197. Up to 33298 conditions per place. [2024-05-12 13:09:20,238 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 54 selfloop transitions, 6 changer transitions 0/74 dead transitions. [2024-05-12 13:09:20,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 74 transitions, 289 flow [2024-05-12 13:09:20,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 13:09:20,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 13:09:20,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-05-12 13:09:20,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-05-12 13:09:20,248 INFO L175 Difference]: Start difference. First operand has 68 places, 56 transitions, 124 flow. Second operand 3 states and 120 transitions. [2024-05-12 13:09:20,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 74 transitions, 289 flow [2024-05-12 13:09:20,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 74 transitions, 282 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-05-12 13:09:20,253 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 164 flow [2024-05-12 13:09:20,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2024-05-12 13:09:20,257 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, -1 predicate places. [2024-05-12 13:09:20,257 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 164 flow [2024-05-12 13:09:20,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-05-12 13:09:20,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:09:20,258 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-05-12 13:09:20,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-12 13:09:20,258 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:09:20,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:09:20,259 INFO L85 PathProgramCache]: Analyzing trace with hash -570648093, now seen corresponding path program 1 times [2024-05-12 13:09:20,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:09:20,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587236760] [2024-05-12 13:09:20,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:09:20,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:09:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:09:20,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:09:20,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:09:20,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587236760] [2024-05-12 13:09:20,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587236760] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:09:20,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:09:20,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-05-12 13:09:20,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771353277] [2024-05-12 13:09:20,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:09:20,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 13:09:20,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:09:20,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 13:09:20,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 13:09:20,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 60 [2024-05-12 13:09:20,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-05-12 13:09:20,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:09:20,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 60 [2024-05-12 13:09:20,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:09:21,352 INFO L124 PetriNetUnfolderBase]: 5320/9069 cut-off events. [2024-05-12 13:09:21,352 INFO L125 PetriNetUnfolderBase]: For 688/688 co-relation queries the response was YES. [2024-05-12 13:09:21,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17484 conditions, 9069 events. 5320/9069 cut-off events. For 688/688 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 70462 event pairs, 3631 based on Foata normal form. 0/8310 useless extension candidates. Maximal degree in co-relation 17469. Up to 6212 conditions per place. [2024-05-12 13:09:21,446 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 47 selfloop transitions, 3 changer transitions 0/79 dead transitions. [2024-05-12 13:09:21,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 79 transitions, 303 flow [2024-05-12 13:09:21,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 13:09:21,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 13:09:21,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2024-05-12 13:09:21,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2024-05-12 13:09:21,459 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 164 flow. Second operand 3 states and 140 transitions. [2024-05-12 13:09:21,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 79 transitions, 303 flow [2024-05-12 13:09:21,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 79 transitions, 298 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-05-12 13:09:21,462 INFO L231 Difference]: Finished difference. Result has 67 places, 58 transitions, 156 flow [2024-05-12 13:09:21,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=67, PETRI_TRANSITIONS=58} [2024-05-12 13:09:21,463 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, -1 predicate places. [2024-05-12 13:09:21,463 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 58 transitions, 156 flow [2024-05-12 13:09:21,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-05-12 13:09:21,463 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:09:21,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:09:21,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-12 13:09:21,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:09:21,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:09:21,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1362144873, now seen corresponding path program 1 times [2024-05-12 13:09:21,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:09:21,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069260088] [2024-05-12 13:09:21,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:09:21,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:09:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:09:22,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:09:22,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:09:22,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069260088] [2024-05-12 13:09:22,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069260088] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:09:22,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:09:22,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-12 13:09:22,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041997702] [2024-05-12 13:09:22,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:09:22,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-12 13:09:22,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:09:22,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-12 13:09:22,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-05-12 13:09:22,355 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 60 [2024-05-12 13:09:22,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 58 transitions, 156 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-05-12 13:09:22,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:09:22,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 60 [2024-05-12 13:09:22,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:09:25,009 INFO L124 PetriNetUnfolderBase]: 21348/31473 cut-off events. [2024-05-12 13:09:25,010 INFO L125 PetriNetUnfolderBase]: For 7126/7126 co-relation queries the response was YES. [2024-05-12 13:09:25,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67492 conditions, 31473 events. 21348/31473 cut-off events. For 7126/7126 co-relation queries the response was YES. Maximal size of possible extension queue 1177. Compared 218487 event pairs, 15405 based on Foata normal form. 4/30512 useless extension candidates. Maximal degree in co-relation 67476. Up to 28350 conditions per place. [2024-05-12 13:09:25,177 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 66 selfloop transitions, 10 changer transitions 2/92 dead transitions. [2024-05-12 13:09:25,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 92 transitions, 408 flow [2024-05-12 13:09:25,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-12 13:09:25,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-05-12 13:09:25,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions. [2024-05-12 13:09:25,179 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-05-12 13:09:25,180 INFO L175 Difference]: Start difference. First operand has 67 places, 58 transitions, 156 flow. Second operand 4 states and 150 transitions. [2024-05-12 13:09:25,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 92 transitions, 408 flow [2024-05-12 13:09:25,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 92 transitions, 400 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 13:09:25,183 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 237 flow [2024-05-12 13:09:25,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=237, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2024-05-12 13:09:25,184 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, 2 predicate places. [2024-05-12 13:09:25,184 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 237 flow [2024-05-12 13:09:25,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-05-12 13:09:25,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:09:25,184 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:09:25,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-12 13:09:25,185 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:09:25,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:09:25,185 INFO L85 PathProgramCache]: Analyzing trace with hash -723179830, now seen corresponding path program 1 times [2024-05-12 13:09:25,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:09:25,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882150762] [2024-05-12 13:09:25,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:09:25,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:09:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:09:26,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:09:26,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:09:26,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882150762] [2024-05-12 13:09:26,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882150762] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:09:26,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:09:26,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-12 13:09:26,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595502845] [2024-05-12 13:09:26,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:09:26,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-12 13:09:26,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:09:26,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-12 13:09:26,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-05-12 13:09:26,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 60 [2024-05-12 13:09:26,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 237 flow. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2024-05-12 13:09:26,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:09:26,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 60 [2024-05-12 13:09:26,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:09:29,082 INFO L124 PetriNetUnfolderBase]: 22379/33448 cut-off events. [2024-05-12 13:09:29,082 INFO L125 PetriNetUnfolderBase]: For 15043/15043 co-relation queries the response was YES. [2024-05-12 13:09:29,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77386 conditions, 33448 events. 22379/33448 cut-off events. For 15043/15043 co-relation queries the response was YES. Maximal size of possible extension queue 1232. Compared 234519 event pairs, 13455 based on Foata normal form. 7/32552 useless extension candidates. Maximal degree in co-relation 77368. Up to 29590 conditions per place. [2024-05-12 13:09:29,272 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 88 selfloop transitions, 23 changer transitions 0/124 dead transitions. [2024-05-12 13:09:29,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 124 transitions, 655 flow [2024-05-12 13:09:29,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 13:09:29,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 13:09:29,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2024-05-12 13:09:29,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.63 [2024-05-12 13:09:29,275 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 237 flow. Second operand 5 states and 189 transitions. [2024-05-12 13:09:29,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 124 transitions, 655 flow [2024-05-12 13:09:29,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 124 transitions, 640 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-05-12 13:09:29,281 INFO L231 Difference]: Finished difference. Result has 75 places, 81 transitions, 384 flow [2024-05-12 13:09:29,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=384, PETRI_PLACES=75, PETRI_TRANSITIONS=81} [2024-05-12 13:09:29,283 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, 7 predicate places. [2024-05-12 13:09:29,283 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 81 transitions, 384 flow [2024-05-12 13:09:29,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2024-05-12 13:09:29,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:09:29,284 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:09:29,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-12 13:09:29,284 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:09:29,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:09:29,285 INFO L85 PathProgramCache]: Analyzing trace with hash -943736152, now seen corresponding path program 1 times [2024-05-12 13:09:29,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:09:29,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010601417] [2024-05-12 13:09:29,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:09:29,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:09:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:09:30,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:09:30,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:09:30,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010601417] [2024-05-12 13:09:30,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010601417] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:09:30,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:09:30,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 13:09:30,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381947053] [2024-05-12 13:09:30,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:09:30,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-12 13:09:30,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:09:30,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-12 13:09:30,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-05-12 13:09:30,554 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 60 [2024-05-12 13:09:30,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 81 transitions, 384 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) [2024-05-12 13:09:30,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:09:30,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 60 [2024-05-12 13:09:30,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:09:33,510 INFO L124 PetriNetUnfolderBase]: 22416/31393 cut-off events. [2024-05-12 13:09:33,510 INFO L125 PetriNetUnfolderBase]: For 35227/35233 co-relation queries the response was YES. [2024-05-12 13:09:33,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86654 conditions, 31393 events. 22416/31393 cut-off events. For 35227/35233 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 198325 event pairs, 11310 based on Foata normal form. 11/31243 useless extension candidates. Maximal degree in co-relation 86632. Up to 29561 conditions per place. [2024-05-12 13:09:33,692 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 102 selfloop transitions, 43 changer transitions 0/158 dead transitions. [2024-05-12 13:09:33,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 158 transitions, 986 flow [2024-05-12 13:09:33,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-12 13:09:33,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-05-12 13:09:33,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 225 transitions. [2024-05-12 13:09:33,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-05-12 13:09:33,694 INFO L175 Difference]: Start difference. First operand has 75 places, 81 transitions, 384 flow. Second operand 6 states and 225 transitions. [2024-05-12 13:09:33,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 158 transitions, 986 flow [2024-05-12 13:09:33,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 158 transitions, 974 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-05-12 13:09:33,705 INFO L231 Difference]: Finished difference. Result has 84 places, 100 transitions, 656 flow [2024-05-12 13:09:33,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=656, PETRI_PLACES=84, PETRI_TRANSITIONS=100} [2024-05-12 13:09:33,705 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, 16 predicate places. [2024-05-12 13:09:33,706 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 100 transitions, 656 flow [2024-05-12 13:09:33,706 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) [2024-05-12 13:09:33,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:09:33,706 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:09:33,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-12 13:09:33,706 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:09:33,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:09:33,707 INFO L85 PathProgramCache]: Analyzing trace with hash 808952489, now seen corresponding path program 1 times [2024-05-12 13:09:33,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:09:33,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385576358] [2024-05-12 13:09:33,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:09:33,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:09:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:09:34,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:09:34,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:09:34,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385576358] [2024-05-12 13:09:34,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385576358] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:09:34,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:09:34,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-05-12 13:09:34,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998878897] [2024-05-12 13:09:34,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:09:34,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-12 13:09:34,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:09:34,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-12 13:09:34,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-05-12 13:09:35,072 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 60 [2024-05-12 13:09:35,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 100 transitions, 656 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) [2024-05-12 13:09:35,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:09:35,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 60 [2024-05-12 13:09:35,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:09:38,486 INFO L124 PetriNetUnfolderBase]: 22466/33987 cut-off events. [2024-05-12 13:09:38,486 INFO L125 PetriNetUnfolderBase]: For 71732/71744 co-relation queries the response was YES. [2024-05-12 13:09:38,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102144 conditions, 33987 events. 22466/33987 cut-off events. For 71732/71744 co-relation queries the response was YES. Maximal size of possible extension queue 1255. Compared 242627 event pairs, 12284 based on Foata normal form. 22/33105 useless extension candidates. Maximal degree in co-relation 102116. Up to 29529 conditions per place. [2024-05-12 13:09:38,695 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 112 selfloop transitions, 47 changer transitions 0/172 dead transitions. [2024-05-12 13:09:38,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 172 transitions, 1242 flow [2024-05-12 13:09:38,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-12 13:09:38,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-05-12 13:09:38,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 256 transitions. [2024-05-12 13:09:38,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6095238095238096 [2024-05-12 13:09:38,698 INFO L175 Difference]: Start difference. First operand has 84 places, 100 transitions, 656 flow. Second operand 7 states and 256 transitions. [2024-05-12 13:09:38,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 172 transitions, 1242 flow [2024-05-12 13:09:38,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 172 transitions, 1194 flow, removed 24 selfloop flow, removed 0 redundant places. [2024-05-12 13:09:38,761 INFO L231 Difference]: Finished difference. Result has 90 places, 103 transitions, 749 flow [2024-05-12 13:09:38,761 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=749, PETRI_PLACES=90, PETRI_TRANSITIONS=103} [2024-05-12 13:09:38,762 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, 22 predicate places. [2024-05-12 13:09:38,762 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 103 transitions, 749 flow [2024-05-12 13:09:38,762 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) [2024-05-12 13:09:38,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:09:38,762 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:09:38,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-05-12 13:09:38,763 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:09:38,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:09:38,763 INFO L85 PathProgramCache]: Analyzing trace with hash -627000054, now seen corresponding path program 1 times [2024-05-12 13:09:38,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:09:38,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859270168] [2024-05-12 13:09:38,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:09:38,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:09:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:09:39,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:09:39,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:09:39,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859270168] [2024-05-12 13:09:39,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859270168] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:09:39,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:09:39,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 13:09:39,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813190439] [2024-05-12 13:09:39,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:09:39,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-12 13:09:39,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:09:39,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-12 13:09:39,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-05-12 13:09:39,658 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-05-12 13:09:39,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 103 transitions, 749 flow. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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) [2024-05-12 13:09:39,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:09:39,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-05-12 13:09:39,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:09:43,788 INFO L124 PetriNetUnfolderBase]: 26036/38991 cut-off events. [2024-05-12 13:09:43,788 INFO L125 PetriNetUnfolderBase]: For 85514/85514 co-relation queries the response was YES. [2024-05-12 13:09:43,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116523 conditions, 38991 events. 26036/38991 cut-off events. For 85514/85514 co-relation queries the response was YES. Maximal size of possible extension queue 1348. Compared 278136 event pairs, 14137 based on Foata normal form. 3/38086 useless extension candidates. Maximal degree in co-relation 116492. Up to 34490 conditions per place. [2024-05-12 13:09:44,074 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 96 selfloop transitions, 18 changer transitions 0/126 dead transitions. [2024-05-12 13:09:44,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 126 transitions, 1033 flow [2024-05-12 13:09:44,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 13:09:44,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 13:09:44,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2024-05-12 13:09:44,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.52 [2024-05-12 13:09:44,076 INFO L175 Difference]: Start difference. First operand has 90 places, 103 transitions, 749 flow. Second operand 5 states and 156 transitions. [2024-05-12 13:09:44,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 126 transitions, 1033 flow [2024-05-12 13:09:44,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 126 transitions, 912 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-05-12 13:09:44,128 INFO L231 Difference]: Finished difference. Result has 90 places, 103 transitions, 680 flow [2024-05-12 13:09:44,128 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=680, PETRI_PLACES=90, PETRI_TRANSITIONS=103} [2024-05-12 13:09:44,135 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, 22 predicate places. [2024-05-12 13:09:44,135 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 103 transitions, 680 flow [2024-05-12 13:09:44,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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) [2024-05-12 13:09:44,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:09:44,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:09:44,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-05-12 13:09:44,136 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:09:44,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:09:44,136 INFO L85 PathProgramCache]: Analyzing trace with hash 2023046129, now seen corresponding path program 1 times [2024-05-12 13:09:44,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:09:44,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066102338] [2024-05-12 13:09:44,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:09:44,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:09:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:09:45,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:09:45,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:09:45,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066102338] [2024-05-12 13:09:45,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066102338] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:09:45,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:09:45,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-05-12 13:09:45,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441596697] [2024-05-12 13:09:45,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:09:45,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-12 13:09:45,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:09:45,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-12 13:09:45,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-05-12 13:09:45,386 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-05-12 13:09:45,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 103 transitions, 680 flow. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 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) [2024-05-12 13:09:45,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:09:45,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-05-12 13:09:45,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:09:49,582 INFO L124 PetriNetUnfolderBase]: 26018/39053 cut-off events. [2024-05-12 13:09:49,582 INFO L125 PetriNetUnfolderBase]: For 91062/91062 co-relation queries the response was YES. [2024-05-12 13:09:49,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117014 conditions, 39053 events. 26018/39053 cut-off events. For 91062/91062 co-relation queries the response was YES. Maximal size of possible extension queue 1350. Compared 279340 event pairs, 13572 based on Foata normal form. 6/38150 useless extension candidates. Maximal degree in co-relation 116981. Up to 34420 conditions per place. [2024-05-12 13:09:49,853 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 107 selfloop transitions, 24 changer transitions 0/143 dead transitions. [2024-05-12 13:09:49,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 143 transitions, 1078 flow [2024-05-12 13:09:49,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-12 13:09:49,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-05-12 13:09:49,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 205 transitions. [2024-05-12 13:09:49,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2024-05-12 13:09:49,855 INFO L175 Difference]: Start difference. First operand has 90 places, 103 transitions, 680 flow. Second operand 7 states and 205 transitions. [2024-05-12 13:09:49,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 143 transitions, 1078 flow [2024-05-12 13:09:49,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 143 transitions, 1022 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-05-12 13:09:49,896 INFO L231 Difference]: Finished difference. Result has 94 places, 109 transitions, 747 flow [2024-05-12 13:09:49,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=627, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=747, PETRI_PLACES=94, PETRI_TRANSITIONS=109} [2024-05-12 13:09:49,897 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, 26 predicate places. [2024-05-12 13:09:49,897 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 109 transitions, 747 flow [2024-05-12 13:09:49,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 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) [2024-05-12 13:09:49,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:09:49,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:09:49,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-05-12 13:09:49,898 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:09:49,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:09:49,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1046446288, now seen corresponding path program 1 times [2024-05-12 13:09:49,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:09:49,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037720854] [2024-05-12 13:09:49,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:09:49,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:09:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:09:51,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:09:51,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:09:51,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037720854] [2024-05-12 13:09:51,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037720854] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:09:51,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:09:51,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-05-12 13:09:51,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711043952] [2024-05-12 13:09:51,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:09:51,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-12 13:09:51,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:09:51,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-12 13:09:51,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-05-12 13:09:51,174 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-05-12 13:09:51,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 109 transitions, 747 flow. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 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) [2024-05-12 13:09:51,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:09:51,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-05-12 13:09:51,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand