./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix044_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix044_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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 23:52:10,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 23:52:10,810 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 23:52:10,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 23:52:10,815 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 23:52:10,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 23:52:10,838 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 23:52:10,839 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 23:52:10,839 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 23:52:10,842 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 23:52:10,842 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 23:52:10,843 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 23:52:10,843 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 23:52:10,844 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 23:52:10,845 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 23:52:10,845 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 23:52:10,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 23:52:10,845 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 23:52:10,845 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 23:52:10,846 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 23:52:10,847 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 23:52:10,847 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 23:52:10,847 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 23:52:10,847 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 23:52:10,848 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 23:52:10,848 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 23:52:10,848 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 23:52:10,848 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 23:52:10,849 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 23:52:10,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 23:52:10,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 23:52:10,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 23:52:10,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 23:52:10,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 23:52:10,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 23:52:10,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 23:52:10,851 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 23:52:10,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 23:52:10,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 23:52:10,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 23:52:10,852 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 23:52:10,852 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 23:52:10,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 23:52:10,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-27 23:52:11,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 23:52:11,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 23:52:11,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 23:52:11,125 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 23:52:11,125 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 23:52:11,126 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i [2024-06-27 23:52:12,163 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 23:52:12,352 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 23:52:12,356 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i [2024-06-27 23:52:12,371 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/683ca716d/97bd1766939a4a6f993b3615db288616/FLAG9b285f70f [2024-06-27 23:52:12,382 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/683ca716d/97bd1766939a4a6f993b3615db288616 [2024-06-27 23:52:12,384 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 23:52:12,384 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 23:52:12,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix044_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml [2024-06-27 23:52:12,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 23:52:12,477 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 23:52:12,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 23:52:12,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 23:52:12,482 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 23:52:12,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 11:52:12" (1/2) ... [2024-06-27 23:52:12,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b6ce1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:52:12, skipping insertion in model container [2024-06-27 23:52:12,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 11:52:12" (1/2) ... [2024-06-27 23:52:12,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1f33973c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:52:12, skipping insertion in model container [2024-06-27 23:52:12,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 11:52:12" (2/2) ... [2024-06-27 23:52:12,487 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b6ce1ad and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:52:12, skipping insertion in model container [2024-06-27 23:52:12,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 11:52:12" (2/2) ... [2024-06-27 23:52:12,487 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 23:52:12,514 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 23:52:12,515 INFO L97 edCorrectnessWitness]: Location invariant before [L876-L876] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EAX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b$mem_tmp >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff1 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$w_buff0) + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0_used >= 0LL) && (long long )a + (long long )b$r_buff0_thd1 >= 0LL) && (long long )a + (long long )b$w_buff0 >= 0LL) && (long long )a + (long long )b$w_buff0_used >= 0LL) && (long long )b + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b + (long long )b$w_buff0 >= 0LL) && (long long )b + (long long )b$w_buff0_used >= 0LL) && (long long )b$flush_delayed + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$mem_tmp + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )x >= 0LL) && (long long )b$r_buff0_thd1 + (long long )y >= 0LL) && (long long )b$r_buff0_thd1 + (long long )z >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0 + (long long )x >= 0LL) && (long long )b$w_buff0 + (long long )y >= 0LL) && (long long )b$w_buff0 + (long long )z >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0_used + (long long )x >= 0LL) && (long long )b$w_buff0_used + (long long )y >= 0LL) && (long long )b$w_buff0_used + (long long )z >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )b$w_buff0_used) - (long long )b$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EBX - (long long )b$mem_tmp >= 0LL) && (long long )b - (long long )b$mem_tmp >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff1 - (long long )b$w_buff1_used >= 0LL) [2024-06-27 23:52:12,515 INFO L97 edCorrectnessWitness]: Location invariant before [L877-L877] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EAX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b$mem_tmp >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff1 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$w_buff0) + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0_used >= 0LL) && (long long )a + (long long )b$r_buff0_thd1 >= 0LL) && (long long )a + (long long )b$w_buff0 >= 0LL) && (long long )a + (long long )b$w_buff0_used >= 0LL) && (long long )b + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b + (long long )b$w_buff0 >= 0LL) && (long long )b + (long long )b$w_buff0_used >= 0LL) && (long long )b$flush_delayed + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$mem_tmp + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )x >= 0LL) && (long long )b$r_buff0_thd1 + (long long )y >= 0LL) && (long long )b$r_buff0_thd1 + (long long )z >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0 + (long long )x >= 0LL) && (long long )b$w_buff0 + (long long )y >= 0LL) && (long long )b$w_buff0 + (long long )z >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0_used + (long long )x >= 0LL) && (long long )b$w_buff0_used + (long long )y >= 0LL) && (long long )b$w_buff0_used + (long long )z >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )b$w_buff0_used) - (long long )b$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EBX - (long long )b$mem_tmp >= 0LL) && (long long )b - (long long )b$mem_tmp >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff1 - (long long )b$w_buff1_used >= 0LL) [2024-06-27 23:52:12,516 INFO L97 edCorrectnessWitness]: Location invariant before [L872-L872] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EAX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b$mem_tmp >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff1 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$w_buff0) + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0_used >= 0LL) && (long long )a + (long long )b$r_buff0_thd1 >= 0LL) && (long long )a + (long long )b$w_buff0 >= 0LL) && (long long )a + (long long )b$w_buff0_used >= 0LL) && (long long )b + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b + (long long )b$w_buff0 >= 0LL) && (long long )b + (long long )b$w_buff0_used >= 0LL) && (long long )b$flush_delayed + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$mem_tmp + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )x >= 0LL) && (long long )b$r_buff0_thd1 + (long long )y >= 0LL) && (long long )b$r_buff0_thd1 + (long long )z >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0 + (long long )x >= 0LL) && (long long )b$w_buff0 + (long long )y >= 0LL) && (long long )b$w_buff0 + (long long )z >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0_used + (long long )x >= 0LL) && (long long )b$w_buff0_used + (long long )y >= 0LL) && (long long )b$w_buff0_used + (long long )z >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )b$w_buff0_used) - (long long )b$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EBX - (long long )b$mem_tmp >= 0LL) && (long long )b - (long long )b$mem_tmp >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff1 - (long long )b$w_buff1_used >= 0LL) [2024-06-27 23:52:12,516 INFO L97 edCorrectnessWitness]: Location invariant before [L874-L874] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EAX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b$mem_tmp >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff1 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$w_buff0) + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0_used >= 0LL) && (long long )a + (long long )b$r_buff0_thd1 >= 0LL) && (long long )a + (long long )b$w_buff0 >= 0LL) && (long long )a + (long long )b$w_buff0_used >= 0LL) && (long long )b + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b + (long long )b$w_buff0 >= 0LL) && (long long )b + (long long )b$w_buff0_used >= 0LL) && (long long )b$flush_delayed + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$mem_tmp + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )x >= 0LL) && (long long )b$r_buff0_thd1 + (long long )y >= 0LL) && (long long )b$r_buff0_thd1 + (long long )z >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0 + (long long )x >= 0LL) && (long long )b$w_buff0 + (long long )y >= 0LL) && (long long )b$w_buff0 + (long long )z >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0_used + (long long )x >= 0LL) && (long long )b$w_buff0_used + (long long )y >= 0LL) && (long long )b$w_buff0_used + (long long )z >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )b$w_buff0_used) - (long long )b$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EBX - (long long )b$mem_tmp >= 0LL) && (long long )b - (long long )b$mem_tmp >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff1 - (long long )b$w_buff1_used >= 0LL) [2024-06-27 23:52:12,516 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 23:52:12,517 INFO L106 edCorrectnessWitness]: ghost_update [L870-L870] multithreaded = 1; [2024-06-27 23:52:12,562 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 23:52:12,911 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 23:52:12,922 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 23:52:13,145 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 23:52:13,176 INFO L206 MainTranslator]: Completed translation [2024-06-27 23:52:13,177 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:52:13 WrapperNode [2024-06-27 23:52:13,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 23:52:13,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 23:52:13,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 23:52:13,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 23:52:13,183 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 27.06 11:52:13" (1/1) ... [2024-06-27 23:52:13,200 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 27.06 11:52:13" (1/1) ... [2024-06-27 23:52:13,251 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 139 [2024-06-27 23:52:13,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 23:52:13,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 23:52:13,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 23:52:13,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 23:52:13,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:52:13" (1/1) ... [2024-06-27 23:52:13,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:52:13" (1/1) ... [2024-06-27 23:52:13,281 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:52:13" (1/1) ... [2024-06-27 23:52:13,308 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-27 23:52:13,309 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:52:13" (1/1) ... [2024-06-27 23:52:13,309 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:52:13" (1/1) ... [2024-06-27 23:52:13,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:52:13" (1/1) ... [2024-06-27 23:52:13,325 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:52:13" (1/1) ... [2024-06-27 23:52:13,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:52:13" (1/1) ... [2024-06-27 23:52:13,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:52:13" (1/1) ... [2024-06-27 23:52:13,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 23:52:13,343 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 23:52:13,343 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 23:52:13,343 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 23:52:13,344 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:52:13" (1/1) ... [2024-06-27 23:52:13,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 23:52:13,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 23:52:13,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-27 23:52:13,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-27 23:52:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 23:52:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 23:52:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 23:52:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 23:52:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 23:52:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 23:52:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 23:52:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 23:52:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 23:52:13,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 23:52:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 23:52:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 23:52:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 23:52:13,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 23:52:13,405 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 23:52:13,522 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 23:52:13,524 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 23:52:14,161 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 23:52:14,161 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 23:52:14,366 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 23:52:14,366 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 23:52:14,366 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 11:52:14 BoogieIcfgContainer [2024-06-27 23:52:14,367 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 23:52:14,368 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 23:52:14,368 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 23:52:14,371 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 23:52:14,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 11:52:12" (1/4) ... [2024-06-27 23:52:14,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3694b745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 11:52:14, skipping insertion in model container [2024-06-27 23:52:14,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 11:52:12" (2/4) ... [2024-06-27 23:52:14,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3694b745 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 11:52:14, skipping insertion in model container [2024-06-27 23:52:14,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:52:13" (3/4) ... [2024-06-27 23:52:14,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3694b745 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 11:52:14, skipping insertion in model container [2024-06-27 23:52:14,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 11:52:14" (4/4) ... [2024-06-27 23:52:14,375 INFO L112 eAbstractionObserver]: Analyzing ICFG mix044_power.oepc_pso.oepc_rmo.oepc.i [2024-06-27 23:52:14,388 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 23:52:14,389 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-27 23:52:14,389 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 23:52:14,452 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 23:52:14,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 53 transitions, 122 flow [2024-06-27 23:52:14,511 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2024-06-27 23:52:14,511 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 23:52:14,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 49 events. 0/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-27 23:52:14,514 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 53 transitions, 122 flow [2024-06-27 23:52:14,517 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 43 transitions, 98 flow [2024-06-27 23:52:14,528 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 23:52:14,534 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;@126403dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 23:52:14,534 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-27 23:52:14,538 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 23:52:14,538 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 23:52:14,538 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 23:52:14,538 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:52:14,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 23:52:14,539 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:52:14,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:52:14,546 INFO L85 PathProgramCache]: Analyzing trace with hash 405960659, now seen corresponding path program 1 times [2024-06-27 23:52:14,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:52:14,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983427358] [2024-06-27 23:52:14,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:52:14,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:52:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:52:16,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:52:16,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:52:16,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983427358] [2024-06-27 23:52:16,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983427358] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:52:16,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:52:16,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 23:52:16,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741207020] [2024-06-27 23:52:16,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:52:16,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 23:52:16,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:52:16,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 23:52:16,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 23:52:16,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 53 [2024-06-27 23:52:16,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 43 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:16,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:52:16,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 53 [2024-06-27 23:52:16,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:52:18,425 INFO L124 PetriNetUnfolderBase]: 13287/18273 cut-off events. [2024-06-27 23:52:18,425 INFO L125 PetriNetUnfolderBase]: For 214/214 co-relation queries the response was YES. [2024-06-27 23:52:18,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36641 conditions, 18273 events. 13287/18273 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 99651 event pairs, 10469 based on Foata normal form. 1/17841 useless extension candidates. Maximal degree in co-relation 36628. Up to 17917 conditions per place. [2024-06-27 23:52:18,526 INFO L140 encePairwiseOnDemand]: 44/53 looper letters, 45 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2024-06-27 23:52:18,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 57 transitions, 235 flow [2024-06-27 23:52:18,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 23:52:18,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 23:52:18,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2024-06-27 23:52:18,536 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6037735849056604 [2024-06-27 23:52:18,537 INFO L175 Difference]: Start difference. First operand has 56 places, 43 transitions, 98 flow. Second operand 3 states and 96 transitions. [2024-06-27 23:52:18,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 57 transitions, 235 flow [2024-06-27 23:52:18,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 57 transitions, 228 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 23:52:18,542 INFO L231 Difference]: Finished difference. Result has 55 places, 47 transitions, 133 flow [2024-06-27 23:52:18,543 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=55, PETRI_TRANSITIONS=47} [2024-06-27 23:52:18,546 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places. [2024-06-27 23:52:18,546 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 47 transitions, 133 flow [2024-06-27 23:52:18,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:18,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:52:18,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:52:18,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 23:52:18,547 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:52:18,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:52:18,547 INFO L85 PathProgramCache]: Analyzing trace with hash -712681370, now seen corresponding path program 1 times [2024-06-27 23:52:18,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:52:18,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058321481] [2024-06-27 23:52:18,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:52:18,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:52:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:52:19,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:52:19,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:52:19,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058321481] [2024-06-27 23:52:19,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058321481] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:52:19,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:52:19,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 23:52:19,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489702990] [2024-06-27 23:52:19,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:52:19,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 23:52:19,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:52:19,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 23:52:19,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 23:52:19,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 53 [2024-06-27 23:52:19,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 47 transitions, 133 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:19,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:52:19,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 53 [2024-06-27 23:52:19,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:52:22,181 INFO L124 PetriNetUnfolderBase]: 13277/18267 cut-off events. [2024-06-27 23:52:22,181 INFO L125 PetriNetUnfolderBase]: For 3270/3270 co-relation queries the response was YES. [2024-06-27 23:52:22,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41086 conditions, 18267 events. 13277/18267 cut-off events. For 3270/3270 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 99574 event pairs, 9539 based on Foata normal form. 4/18059 useless extension candidates. Maximal degree in co-relation 41074. Up to 17882 conditions per place. [2024-06-27 23:52:22,266 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 55 selfloop transitions, 9 changer transitions 0/71 dead transitions. [2024-06-27 23:52:22,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 71 transitions, 327 flow [2024-06-27 23:52:22,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 23:52:22,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 23:52:22,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2024-06-27 23:52:22,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5849056603773585 [2024-06-27 23:52:22,270 INFO L175 Difference]: Start difference. First operand has 55 places, 47 transitions, 133 flow. Second operand 4 states and 124 transitions. [2024-06-27 23:52:22,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 71 transitions, 327 flow [2024-06-27 23:52:22,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 71 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 23:52:22,279 INFO L231 Difference]: Finished difference. Result has 58 places, 51 transitions, 181 flow [2024-06-27 23:52:22,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=181, PETRI_PLACES=58, PETRI_TRANSITIONS=51} [2024-06-27 23:52:22,280 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 2 predicate places. [2024-06-27 23:52:22,281 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 181 flow [2024-06-27 23:52:22,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:22,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:52:22,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:52:22,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 23:52:22,283 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:52:22,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:52:22,288 INFO L85 PathProgramCache]: Analyzing trace with hash -618284250, now seen corresponding path program 1 times [2024-06-27 23:52:22,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:52:22,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907377470] [2024-06-27 23:52:22,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:52:22,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:52:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:52:23,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:52:23,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:52:23,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907377470] [2024-06-27 23:52:23,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907377470] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:52:23,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:52:23,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 23:52:23,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292012029] [2024-06-27 23:52:23,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:52:23,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 23:52:23,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:52:23,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 23:52:23,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 23:52:23,408 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 53 [2024-06-27 23:52:23,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 181 flow. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:23,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:52:23,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 53 [2024-06-27 23:52:23,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:52:25,783 INFO L124 PetriNetUnfolderBase]: 13385/18430 cut-off events. [2024-06-27 23:52:25,783 INFO L125 PetriNetUnfolderBase]: For 9654/9654 co-relation queries the response was YES. [2024-06-27 23:52:25,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45949 conditions, 18430 events. 13385/18430 cut-off events. For 9654/9654 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 100862 event pairs, 7798 based on Foata normal form. 10/18242 useless extension candidates. Maximal degree in co-relation 45935. Up to 17855 conditions per place. [2024-06-27 23:52:25,875 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 75 selfloop transitions, 21 changer transitions 0/103 dead transitions. [2024-06-27 23:52:25,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 103 transitions, 551 flow [2024-06-27 23:52:25,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 23:52:25,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 23:52:25,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-06-27 23:52:25,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6188679245283019 [2024-06-27 23:52:25,878 INFO L175 Difference]: Start difference. First operand has 58 places, 51 transitions, 181 flow. Second operand 5 states and 164 transitions. [2024-06-27 23:52:25,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 103 transitions, 551 flow [2024-06-27 23:52:25,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 103 transitions, 532 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-06-27 23:52:25,882 INFO L231 Difference]: Finished difference. Result has 63 places, 65 transitions, 314 flow [2024-06-27 23:52:25,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=314, PETRI_PLACES=63, PETRI_TRANSITIONS=65} [2024-06-27 23:52:25,883 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 7 predicate places. [2024-06-27 23:52:25,884 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 65 transitions, 314 flow [2024-06-27 23:52:25,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:25,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:52:25,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:52:25,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 23:52:25,884 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:52:25,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:52:25,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1255212561, now seen corresponding path program 1 times [2024-06-27 23:52:25,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:52:25,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806246131] [2024-06-27 23:52:25,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:52:25,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:52:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:52:27,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:52:27,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:52:27,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806246131] [2024-06-27 23:52:27,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806246131] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:52:27,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:52:27,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 23:52:27,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978075877] [2024-06-27 23:52:27,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:52:27,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 23:52:27,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:52:27,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 23:52:27,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-27 23:52:27,294 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 53 [2024-06-27 23:52:27,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 65 transitions, 314 flow. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:27,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:52:27,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 53 [2024-06-27 23:52:27,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:52:29,390 INFO L124 PetriNetUnfolderBase]: 13431/18496 cut-off events. [2024-06-27 23:52:29,390 INFO L125 PetriNetUnfolderBase]: For 23379/23381 co-relation queries the response was YES. [2024-06-27 23:52:29,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54275 conditions, 18496 events. 13431/18496 cut-off events. For 23379/23381 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 101157 event pairs, 6520 based on Foata normal form. 10/18307 useless extension candidates. Maximal degree in co-relation 54258. Up to 17777 conditions per place. [2024-06-27 23:52:29,483 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 90 selfloop transitions, 37 changer transitions 0/134 dead transitions. [2024-06-27 23:52:29,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 134 transitions, 862 flow [2024-06-27 23:52:29,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 23:52:29,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 23:52:29,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 198 transitions. [2024-06-27 23:52:29,485 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6226415094339622 [2024-06-27 23:52:29,485 INFO L175 Difference]: Start difference. First operand has 63 places, 65 transitions, 314 flow. Second operand 6 states and 198 transitions. [2024-06-27 23:52:29,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 134 transitions, 862 flow [2024-06-27 23:52:29,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 134 transitions, 850 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-27 23:52:29,493 INFO L231 Difference]: Finished difference. Result has 72 places, 82 transitions, 552 flow [2024-06-27 23:52:29,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=552, PETRI_PLACES=72, PETRI_TRANSITIONS=82} [2024-06-27 23:52:29,494 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 16 predicate places. [2024-06-27 23:52:29,495 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 82 transitions, 552 flow [2024-06-27 23:52:29,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:29,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:52:29,495 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:52:29,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 23:52:29,495 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:52:29,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:52:29,496 INFO L85 PathProgramCache]: Analyzing trace with hash 256885529, now seen corresponding path program 1 times [2024-06-27 23:52:29,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:52:29,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752385816] [2024-06-27 23:52:29,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:52:29,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:52:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:52:31,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:52:31,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:52:31,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752385816] [2024-06-27 23:52:31,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752385816] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:52:31,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:52:31,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 23:52:31,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174900380] [2024-06-27 23:52:31,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:52:31,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 23:52:31,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:52:31,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 23:52:31,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-27 23:52:31,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 53 [2024-06-27 23:52:31,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 82 transitions, 552 flow. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 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) [2024-06-27 23:52:31,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:52:31,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 53 [2024-06-27 23:52:31,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:52:33,420 INFO L124 PetriNetUnfolderBase]: 13646/18822 cut-off events. [2024-06-27 23:52:33,420 INFO L125 PetriNetUnfolderBase]: For 44036/44036 co-relation queries the response was YES. [2024-06-27 23:52:33,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63653 conditions, 18822 events. 13646/18822 cut-off events. For 44036/44036 co-relation queries the response was YES. Maximal size of possible extension queue 617. Compared 103224 event pairs, 5432 based on Foata normal form. 38/18662 useless extension candidates. Maximal degree in co-relation 63630. Up to 17891 conditions per place. [2024-06-27 23:52:33,555 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 113 selfloop transitions, 29 changer transitions 0/149 dead transitions. [2024-06-27 23:52:33,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 149 transitions, 1102 flow [2024-06-27 23:52:33,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 23:52:33,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 23:52:33,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 222 transitions. [2024-06-27 23:52:33,560 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5983827493261455 [2024-06-27 23:52:33,560 INFO L175 Difference]: Start difference. First operand has 72 places, 82 transitions, 552 flow. Second operand 7 states and 222 transitions. [2024-06-27 23:52:33,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 149 transitions, 1102 flow [2024-06-27 23:52:33,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 149 transitions, 1066 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-06-27 23:52:33,582 INFO L231 Difference]: Finished difference. Result has 79 places, 88 transitions, 659 flow [2024-06-27 23:52:33,584 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=659, PETRI_PLACES=79, PETRI_TRANSITIONS=88} [2024-06-27 23:52:33,584 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 23 predicate places. [2024-06-27 23:52:33,584 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 88 transitions, 659 flow [2024-06-27 23:52:33,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 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) [2024-06-27 23:52:33,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:52:33,585 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:52:33,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 23:52:33,585 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:52:33,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:52:33,585 INFO L85 PathProgramCache]: Analyzing trace with hash -890928937, now seen corresponding path program 1 times [2024-06-27 23:52:33,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:52:33,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764318602] [2024-06-27 23:52:33,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:52:33,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:52:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:52:35,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:52:35,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:52:35,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764318602] [2024-06-27 23:52:35,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764318602] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:52:35,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:52:35,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 23:52:35,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526870533] [2024-06-27 23:52:35,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:52:35,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 23:52:35,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:52:35,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 23:52:35,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 23:52:35,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2024-06-27 23:52:35,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 88 transitions, 659 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:35,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:52:35,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2024-06-27 23:52:35,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:52:37,696 INFO L124 PetriNetUnfolderBase]: 13628/18836 cut-off events. [2024-06-27 23:52:37,696 INFO L125 PetriNetUnfolderBase]: For 59852/59852 co-relation queries the response was YES. [2024-06-27 23:52:37,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66829 conditions, 18836 events. 13628/18836 cut-off events. For 59852/59852 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 104964 event pairs, 8398 based on Foata normal form. 6/18627 useless extension candidates. Maximal degree in co-relation 66801. Up to 18389 conditions per place. [2024-06-27 23:52:37,798 INFO L140 encePairwiseOnDemand]: 42/53 looper letters, 85 selfloop transitions, 15 changer transitions 0/106 dead transitions. [2024-06-27 23:52:37,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 106 transitions, 919 flow [2024-06-27 23:52:37,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 23:52:37,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 23:52:37,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2024-06-27 23:52:37,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47547169811320755 [2024-06-27 23:52:37,803 INFO L175 Difference]: Start difference. First operand has 79 places, 88 transitions, 659 flow. Second operand 5 states and 126 transitions. [2024-06-27 23:52:37,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 106 transitions, 919 flow [2024-06-27 23:52:37,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 106 transitions, 848 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-06-27 23:52:37,819 INFO L231 Difference]: Finished difference. Result has 81 places, 90 transitions, 657 flow [2024-06-27 23:52:37,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=657, PETRI_PLACES=81, PETRI_TRANSITIONS=90} [2024-06-27 23:52:37,823 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 25 predicate places. [2024-06-27 23:52:37,823 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 90 transitions, 657 flow [2024-06-27 23:52:37,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:37,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:52:37,824 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:52:37,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 23:52:37,824 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:52:37,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:52:37,824 INFO L85 PathProgramCache]: Analyzing trace with hash -919141340, now seen corresponding path program 1 times [2024-06-27 23:52:37,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:52:37,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670307227] [2024-06-27 23:52:37,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:52:37,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:52:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:52:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:52:39,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:52:39,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670307227] [2024-06-27 23:52:39,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670307227] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:52:39,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:52:39,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 23:52:39,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571956573] [2024-06-27 23:52:39,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:52:39,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 23:52:39,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:52:39,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 23:52:39,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-27 23:52:39,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2024-06-27 23:52:39,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 90 transitions, 657 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:39,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:52:39,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2024-06-27 23:52:39,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:52:42,208 INFO L124 PetriNetUnfolderBase]: 13795/19043 cut-off events. [2024-06-27 23:52:42,208 INFO L125 PetriNetUnfolderBase]: For 64196/64220 co-relation queries the response was YES. [2024-06-27 23:52:42,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68893 conditions, 19043 events. 13795/19043 cut-off events. For 64196/64220 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 104765 event pairs, 6412 based on Foata normal form. 30/18867 useless extension candidates. Maximal degree in co-relation 68861. Up to 18435 conditions per place. [2024-06-27 23:52:42,339 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 112 selfloop transitions, 37 changer transitions 0/155 dead transitions. [2024-06-27 23:52:42,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 155 transitions, 1361 flow [2024-06-27 23:52:42,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 23:52:42,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 23:52:42,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 173 transitions. [2024-06-27 23:52:42,341 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5440251572327044 [2024-06-27 23:52:42,341 INFO L175 Difference]: Start difference. First operand has 81 places, 90 transitions, 657 flow. Second operand 6 states and 173 transitions. [2024-06-27 23:52:42,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 155 transitions, 1361 flow [2024-06-27 23:52:42,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 155 transitions, 1331 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 23:52:42,383 INFO L231 Difference]: Finished difference. Result has 86 places, 116 transitions, 986 flow [2024-06-27 23:52:42,383 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=627, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=986, PETRI_PLACES=86, PETRI_TRANSITIONS=116} [2024-06-27 23:52:42,384 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 30 predicate places. [2024-06-27 23:52:42,384 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 116 transitions, 986 flow [2024-06-27 23:52:42,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:42,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:52:42,385 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:52:42,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 23:52:42,385 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:52:42,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:52:42,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1879612572, now seen corresponding path program 2 times [2024-06-27 23:52:42,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:52:42,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122215553] [2024-06-27 23:52:42,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:52:42,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:52:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:52:43,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:52:43,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:52:43,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122215553] [2024-06-27 23:52:43,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122215553] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:52:43,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:52:43,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 23:52:43,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652766084] [2024-06-27 23:52:43,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:52:43,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 23:52:43,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:52:43,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 23:52:43,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-27 23:52:43,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-27 23:52:43,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 116 transitions, 986 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:43,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:52:43,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-27 23:52:43,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:52:46,751 INFO L124 PetriNetUnfolderBase]: 17069/23495 cut-off events. [2024-06-27 23:52:46,752 INFO L125 PetriNetUnfolderBase]: For 95562/95564 co-relation queries the response was YES. [2024-06-27 23:52:46,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88107 conditions, 23495 events. 17069/23495 cut-off events. For 95562/95564 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 128903 event pairs, 10107 based on Foata normal form. 12/23251 useless extension candidates. Maximal degree in co-relation 88073. Up to 22730 conditions per place. [2024-06-27 23:52:46,904 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 128 selfloop transitions, 44 changer transitions 0/177 dead transitions. [2024-06-27 23:52:46,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 177 transitions, 1849 flow [2024-06-27 23:52:46,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 23:52:46,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 23:52:46,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2024-06-27 23:52:46,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4811320754716981 [2024-06-27 23:52:46,905 INFO L175 Difference]: Start difference. First operand has 86 places, 116 transitions, 986 flow. Second operand 6 states and 153 transitions. [2024-06-27 23:52:46,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 177 transitions, 1849 flow [2024-06-27 23:52:46,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 177 transitions, 1808 flow, removed 16 selfloop flow, removed 1 redundant places. [2024-06-27 23:52:46,974 INFO L231 Difference]: Finished difference. Result has 92 places, 145 transitions, 1481 flow [2024-06-27 23:52:46,974 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=959, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1481, PETRI_PLACES=92, PETRI_TRANSITIONS=145} [2024-06-27 23:52:46,975 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 36 predicate places. [2024-06-27 23:52:46,975 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 145 transitions, 1481 flow [2024-06-27 23:52:46,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:46,975 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:52:46,976 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:52:46,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 23:52:46,976 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:52:46,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:52:46,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1484159946, now seen corresponding path program 3 times [2024-06-27 23:52:46,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:52:46,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233771863] [2024-06-27 23:52:46,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:52:46,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:52:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:52:48,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:52:48,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:52:48,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233771863] [2024-06-27 23:52:48,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233771863] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:52:48,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:52:48,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 23:52:48,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92386058] [2024-06-27 23:52:48,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:52:48,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 23:52:48,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:52:48,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 23:52:48,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-27 23:52:48,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-27 23:52:48,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 145 transitions, 1481 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:48,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:52:48,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-27 23:52:48,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:52:51,351 INFO L124 PetriNetUnfolderBase]: 17000/23394 cut-off events. [2024-06-27 23:52:51,352 INFO L125 PetriNetUnfolderBase]: For 112458/112458 co-relation queries the response was YES. [2024-06-27 23:52:51,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91955 conditions, 23394 events. 17000/23394 cut-off events. For 112458/112458 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 128223 event pairs, 10113 based on Foata normal form. 10/23150 useless extension candidates. Maximal degree in co-relation 91917. Up to 22836 conditions per place. [2024-06-27 23:52:51,480 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 149 selfloop transitions, 20 changer transitions 0/174 dead transitions. [2024-06-27 23:52:51,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 174 transitions, 1942 flow [2024-06-27 23:52:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 23:52:51,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 23:52:51,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 145 transitions. [2024-06-27 23:52:51,483 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4559748427672956 [2024-06-27 23:52:51,483 INFO L175 Difference]: Start difference. First operand has 92 places, 145 transitions, 1481 flow. Second operand 6 states and 145 transitions. [2024-06-27 23:52:51,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 174 transitions, 1942 flow [2024-06-27 23:52:51,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 174 transitions, 1904 flow, removed 13 selfloop flow, removed 2 redundant places. [2024-06-27 23:52:51,572 INFO L231 Difference]: Finished difference. Result has 96 places, 149 transitions, 1543 flow [2024-06-27 23:52:51,572 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1443, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1543, PETRI_PLACES=96, PETRI_TRANSITIONS=149} [2024-06-27 23:52:51,573 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 40 predicate places. [2024-06-27 23:52:51,573 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 149 transitions, 1543 flow [2024-06-27 23:52:51,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:51,573 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:52:51,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:52:51,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 23:52:51,574 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:52:51,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:52:51,574 INFO L85 PathProgramCache]: Analyzing trace with hash 307308822, now seen corresponding path program 1 times [2024-06-27 23:52:51,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:52:51,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238702033] [2024-06-27 23:52:51,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:52:51,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:52:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:52:53,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:52:53,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:52:53,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238702033] [2024-06-27 23:52:53,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238702033] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:52:53,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:52:53,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 23:52:53,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919582165] [2024-06-27 23:52:53,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:52:53,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 23:52:53,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:52:53,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 23:52:53,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-27 23:52:53,244 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-27 23:52:53,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 149 transitions, 1543 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:53,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:52:53,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-27 23:52:53,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:52:56,487 INFO L124 PetriNetUnfolderBase]: 17181/23642 cut-off events. [2024-06-27 23:52:56,487 INFO L125 PetriNetUnfolderBase]: For 129992/129998 co-relation queries the response was YES. [2024-06-27 23:52:56,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95544 conditions, 23642 events. 17181/23642 cut-off events. For 129992/129998 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 129585 event pairs, 10113 based on Foata normal form. 22/23408 useless extension candidates. Maximal degree in co-relation 95504. Up to 22572 conditions per place. [2024-06-27 23:52:56,704 INFO L140 encePairwiseOnDemand]: 38/53 looper letters, 139 selfloop transitions, 73 changer transitions 0/217 dead transitions. [2024-06-27 23:52:56,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 217 transitions, 2529 flow [2024-06-27 23:52:56,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 23:52:56,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 23:52:56,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 178 transitions. [2024-06-27 23:52:56,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4797843665768194 [2024-06-27 23:52:56,706 INFO L175 Difference]: Start difference. First operand has 96 places, 149 transitions, 1543 flow. Second operand 7 states and 178 transitions. [2024-06-27 23:52:56,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 217 transitions, 2529 flow [2024-06-27 23:52:56,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 217 transitions, 2481 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-06-27 23:52:56,824 INFO L231 Difference]: Finished difference. Result has 100 places, 173 transitions, 2060 flow [2024-06-27 23:52:56,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1495, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2060, PETRI_PLACES=100, PETRI_TRANSITIONS=173} [2024-06-27 23:52:56,825 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 44 predicate places. [2024-06-27 23:52:56,825 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 173 transitions, 2060 flow [2024-06-27 23:52:56,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:56,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:52:56,825 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:52:56,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 23:52:56,826 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:52:56,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:52:56,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1235683946, now seen corresponding path program 2 times [2024-06-27 23:52:56,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:52:56,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332172088] [2024-06-27 23:52:56,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:52:56,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:52:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:52:58,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:52:58,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:52:58,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332172088] [2024-06-27 23:52:58,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332172088] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:52:58,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:52:58,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 23:52:58,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450540464] [2024-06-27 23:52:58,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:52:58,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 23:52:58,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:52:58,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 23:52:58,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-27 23:52:58,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-27 23:52:58,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 173 transitions, 2060 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:52:58,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:52:58,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-27 23:52:58,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:53:01,538 INFO L124 PetriNetUnfolderBase]: 17161/23612 cut-off events. [2024-06-27 23:53:01,538 INFO L125 PetriNetUnfolderBase]: For 149263/149265 co-relation queries the response was YES. [2024-06-27 23:53:01,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98026 conditions, 23612 events. 17161/23612 cut-off events. For 149263/149265 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 129369 event pairs, 10135 based on Foata normal form. 10/23368 useless extension candidates. Maximal degree in co-relation 97984. Up to 22980 conditions per place. [2024-06-27 23:53:01,698 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 183 selfloop transitions, 30 changer transitions 0/218 dead transitions. [2024-06-27 23:53:01,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 218 transitions, 2775 flow [2024-06-27 23:53:01,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 23:53:01,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 23:53:01,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 183 transitions. [2024-06-27 23:53:01,699 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43160377358490565 [2024-06-27 23:53:01,699 INFO L175 Difference]: Start difference. First operand has 100 places, 173 transitions, 2060 flow. Second operand 8 states and 183 transitions. [2024-06-27 23:53:01,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 218 transitions, 2775 flow [2024-06-27 23:53:01,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 218 transitions, 2688 flow, removed 29 selfloop flow, removed 3 redundant places. [2024-06-27 23:53:01,851 INFO L231 Difference]: Finished difference. Result has 105 places, 178 transitions, 2135 flow [2024-06-27 23:53:01,851 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1973, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2135, PETRI_PLACES=105, PETRI_TRANSITIONS=178} [2024-06-27 23:53:01,851 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 49 predicate places. [2024-06-27 23:53:01,851 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 178 transitions, 2135 flow [2024-06-27 23:53:01,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:53:01,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:53:01,852 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:53:01,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-27 23:53:01,852 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:53:01,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:53:01,852 INFO L85 PathProgramCache]: Analyzing trace with hash 380623370, now seen corresponding path program 1 times [2024-06-27 23:53:01,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:53:01,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605541981] [2024-06-27 23:53:01,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:53:01,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:53:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:53:04,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:53:04,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:53:04,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605541981] [2024-06-27 23:53:04,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605541981] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:53:04,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:53:04,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 23:53:04,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773153183] [2024-06-27 23:53:04,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:53:04,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 23:53:04,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:53:04,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 23:53:04,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-27 23:53:04,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-27 23:53:04,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 178 transitions, 2135 flow. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:53:04,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:53:04,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-27 23:53:04,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:53:08,196 INFO L124 PetriNetUnfolderBase]: 17164/23617 cut-off events. [2024-06-27 23:53:08,197 INFO L125 PetriNetUnfolderBase]: For 166847/166847 co-relation queries the response was YES. [2024-06-27 23:53:08,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99828 conditions, 23617 events. 17164/23617 cut-off events. For 166847/166847 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 129194 event pairs, 9947 based on Foata normal form. 6/23369 useless extension candidates. Maximal degree in co-relation 99784. Up to 23038 conditions per place. [2024-06-27 23:53:08,333 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 188 selfloop transitions, 24 changer transitions 0/217 dead transitions. [2024-06-27 23:53:08,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 217 transitions, 2754 flow [2024-06-27 23:53:08,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 23:53:08,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 23:53:08,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 178 transitions. [2024-06-27 23:53:08,334 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.419811320754717 [2024-06-27 23:53:08,334 INFO L175 Difference]: Start difference. First operand has 105 places, 178 transitions, 2135 flow. Second operand 8 states and 178 transitions. [2024-06-27 23:53:08,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 217 transitions, 2754 flow [2024-06-27 23:53:08,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 217 transitions, 2649 flow, removed 23 selfloop flow, removed 5 redundant places. [2024-06-27 23:53:08,488 INFO L231 Difference]: Finished difference. Result has 109 places, 187 transitions, 2208 flow [2024-06-27 23:53:08,489 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2041, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2208, PETRI_PLACES=109, PETRI_TRANSITIONS=187} [2024-06-27 23:53:08,489 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 53 predicate places. [2024-06-27 23:53:08,489 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 187 transitions, 2208 flow [2024-06-27 23:53:08,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:53:08,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:53:08,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:53:08,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-27 23:53:08,490 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:53:08,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:53:08,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1033165126, now seen corresponding path program 1 times [2024-06-27 23:53:08,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:53:08,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418313107] [2024-06-27 23:53:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:53:08,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:53:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:53:10,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:53:10,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:53:10,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418313107] [2024-06-27 23:53:10,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418313107] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:53:10,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:53:10,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 23:53:10,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808890671] [2024-06-27 23:53:10,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:53:10,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 23:53:10,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:53:10,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 23:53:10,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 23:53:10,181 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-27 23:53:10,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 187 transitions, 2208 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:53:10,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:53:10,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-27 23:53:10,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:53:13,450 INFO L124 PetriNetUnfolderBase]: 17157/23620 cut-off events. [2024-06-27 23:53:13,450 INFO L125 PetriNetUnfolderBase]: For 196302/196302 co-relation queries the response was YES. [2024-06-27 23:53:13,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104664 conditions, 23620 events. 17157/23620 cut-off events. For 196302/196302 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 129222 event pairs, 10081 based on Foata normal form. 2/23374 useless extension candidates. Maximal degree in co-relation 104619. Up to 23106 conditions per place. [2024-06-27 23:53:13,656 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 187 selfloop transitions, 12 changer transitions 0/204 dead transitions. [2024-06-27 23:53:13,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 204 transitions, 2690 flow [2024-06-27 23:53:13,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 23:53:13,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 23:53:13,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2024-06-27 23:53:13,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44150943396226416 [2024-06-27 23:53:13,657 INFO L175 Difference]: Start difference. First operand has 109 places, 187 transitions, 2208 flow. Second operand 5 states and 117 transitions. [2024-06-27 23:53:13,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 204 transitions, 2690 flow [2024-06-27 23:53:13,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 204 transitions, 2610 flow, removed 20 selfloop flow, removed 5 redundant places. [2024-06-27 23:53:13,869 INFO L231 Difference]: Finished difference. Result has 109 places, 191 transitions, 2207 flow [2024-06-27 23:53:13,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2207, PETRI_PLACES=109, PETRI_TRANSITIONS=191} [2024-06-27 23:53:13,870 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 53 predicate places. [2024-06-27 23:53:13,870 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 191 transitions, 2207 flow [2024-06-27 23:53:13,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:53:13,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:53:13,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:53:13,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-27 23:53:13,870 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:53:13,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:53:13,871 INFO L85 PathProgramCache]: Analyzing trace with hash 2053959031, now seen corresponding path program 1 times [2024-06-27 23:53:13,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:53:13,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643526956] [2024-06-27 23:53:13,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:53:13,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:53:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:53:15,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:53:15,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:53:15,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643526956] [2024-06-27 23:53:15,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643526956] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:53:15,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:53:15,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 23:53:15,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083392090] [2024-06-27 23:53:15,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:53:15,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 23:53:15,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:53:15,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 23:53:15,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-27 23:53:16,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 53 [2024-06-27 23:53:16,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 191 transitions, 2207 flow. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:53:16,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:53:16,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 53 [2024-06-27 23:53:16,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:53:20,061 INFO L124 PetriNetUnfolderBase]: 16994/23443 cut-off events. [2024-06-27 23:53:20,061 INFO L125 PetriNetUnfolderBase]: For 229549/229688 co-relation queries the response was YES. [2024-06-27 23:53:20,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110229 conditions, 23443 events. 16994/23443 cut-off events. For 229549/229688 co-relation queries the response was YES. Maximal size of possible extension queue 727. Compared 130941 event pairs, 7333 based on Foata normal form. 105/23052 useless extension candidates. Maximal degree in co-relation 110184. Up to 21672 conditions per place. [2024-06-27 23:53:20,216 INFO L140 encePairwiseOnDemand]: 41/53 looper letters, 119 selfloop transitions, 113 changer transitions 0/242 dead transitions. [2024-06-27 23:53:20,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 242 transitions, 3055 flow [2024-06-27 23:53:20,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 23:53:20,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 23:53:20,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 197 transitions. [2024-06-27 23:53:20,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5309973045822103 [2024-06-27 23:53:20,217 INFO L175 Difference]: Start difference. First operand has 109 places, 191 transitions, 2207 flow. Second operand 7 states and 197 transitions. [2024-06-27 23:53:20,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 242 transitions, 3055 flow [2024-06-27 23:53:20,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 242 transitions, 3006 flow, removed 15 selfloop flow, removed 3 redundant places. [2024-06-27 23:53:20,379 INFO L231 Difference]: Finished difference. Result has 113 places, 199 transitions, 2483 flow [2024-06-27 23:53:20,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2158, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2483, PETRI_PLACES=113, PETRI_TRANSITIONS=199} [2024-06-27 23:53:20,380 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 57 predicate places. [2024-06-27 23:53:20,380 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 199 transitions, 2483 flow [2024-06-27 23:53:20,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:53:20,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:53:20,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:53:20,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-27 23:53:20,381 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:53:20,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:53:20,381 INFO L85 PathProgramCache]: Analyzing trace with hash 2057624161, now seen corresponding path program 2 times [2024-06-27 23:53:20,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:53:20,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103246951] [2024-06-27 23:53:20,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:53:20,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:53:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:53:22,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:53:22,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:53:22,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103246951] [2024-06-27 23:53:22,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103246951] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:53:22,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:53:22,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 23:53:22,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469892300] [2024-06-27 23:53:22,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:53:22,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 23:53:22,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:53:22,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 23:53:22,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-27 23:53:22,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 53 [2024-06-27 23:53:22,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 199 transitions, 2483 flow. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:53:22,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:53:22,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 53 [2024-06-27 23:53:22,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:53:26,086 INFO L124 PetriNetUnfolderBase]: 16773/23216 cut-off events. [2024-06-27 23:53:26,086 INFO L125 PetriNetUnfolderBase]: For 260535/260633 co-relation queries the response was YES. [2024-06-27 23:53:26,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114197 conditions, 23216 events. 16773/23216 cut-off events. For 260535/260633 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 130008 event pairs, 7342 based on Foata normal form. 75/22894 useless extension candidates. Maximal degree in co-relation 114151. Up to 21657 conditions per place. [2024-06-27 23:53:26,243 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 120 selfloop transitions, 112 changer transitions 0/242 dead transitions. [2024-06-27 23:53:26,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 242 transitions, 3271 flow [2024-06-27 23:53:26,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 23:53:26,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 23:53:26,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2024-06-27 23:53:26,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.522911051212938 [2024-06-27 23:53:26,254 INFO L175 Difference]: Start difference. First operand has 113 places, 199 transitions, 2483 flow. Second operand 7 states and 194 transitions. [2024-06-27 23:53:26,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 242 transitions, 3271 flow [2024-06-27 23:53:26,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 242 transitions, 3113 flow, removed 28 selfloop flow, removed 3 redundant places. [2024-06-27 23:53:26,493 INFO L231 Difference]: Finished difference. Result has 117 places, 199 transitions, 2568 flow [2024-06-27 23:53:26,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2325, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2568, PETRI_PLACES=117, PETRI_TRANSITIONS=199} [2024-06-27 23:53:26,494 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 61 predicate places. [2024-06-27 23:53:26,494 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 199 transitions, 2568 flow [2024-06-27 23:53:26,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:53:26,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:53:26,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:53:26,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-27 23:53:26,494 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:53:26,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:53:26,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2127890457, now seen corresponding path program 1 times [2024-06-27 23:53:26,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:53:26,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924285595] [2024-06-27 23:53:26,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:53:26,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:53:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:53:29,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:53:29,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:53:29,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924285595] [2024-06-27 23:53:29,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924285595] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:53:29,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:53:29,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 23:53:29,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474649951] [2024-06-27 23:53:29,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:53:29,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 23:53:29,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:53:29,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 23:53:29,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-27 23:53:29,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-27 23:53:29,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 199 transitions, 2568 flow. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:53:29,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:53:29,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-27 23:53:29,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:53:33,134 INFO L124 PetriNetUnfolderBase]: 17310/23803 cut-off events. [2024-06-27 23:53:33,134 INFO L125 PetriNetUnfolderBase]: For 280570/280637 co-relation queries the response was YES. [2024-06-27 23:53:33,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118955 conditions, 23803 events. 17310/23803 cut-off events. For 280570/280637 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 129525 event pairs, 7510 based on Foata normal form. 48/23625 useless extension candidates. Maximal degree in co-relation 118907. Up to 22481 conditions per place. [2024-06-27 23:53:33,287 INFO L140 encePairwiseOnDemand]: 36/53 looper letters, 151 selfloop transitions, 124 changer transitions 0/280 dead transitions. [2024-06-27 23:53:33,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 280 transitions, 3971 flow [2024-06-27 23:53:33,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 23:53:33,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 23:53:33,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 208 transitions. [2024-06-27 23:53:33,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49056603773584906 [2024-06-27 23:53:33,289 INFO L175 Difference]: Start difference. First operand has 117 places, 199 transitions, 2568 flow. Second operand 8 states and 208 transitions. [2024-06-27 23:53:33,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 280 transitions, 3971 flow [2024-06-27 23:53:33,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 280 transitions, 3667 flow, removed 11 selfloop flow, removed 6 redundant places. [2024-06-27 23:53:33,522 INFO L231 Difference]: Finished difference. Result has 121 places, 226 transitions, 3038 flow [2024-06-27 23:53:33,522 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2320, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3038, PETRI_PLACES=121, PETRI_TRANSITIONS=226} [2024-06-27 23:53:33,522 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 65 predicate places. [2024-06-27 23:53:33,522 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 226 transitions, 3038 flow [2024-06-27 23:53:33,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:53:33,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:53:33,523 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:53:33,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-27 23:53:33,523 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:53:33,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:53:33,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1421953835, now seen corresponding path program 2 times [2024-06-27 23:53:33,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:53:33,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427853303] [2024-06-27 23:53:33,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:53:33,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:53:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:53:35,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:53:35,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:53:35,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427853303] [2024-06-27 23:53:35,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427853303] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:53:35,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:53:35,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 23:53:35,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166458815] [2024-06-27 23:53:35,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:53:35,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 23:53:35,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:53:35,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 23:53:35,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-27 23:53:35,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-27 23:53:35,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 226 transitions, 3038 flow. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:53:35,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:53:35,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-27 23:53:35,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:53:39,550 INFO L124 PetriNetUnfolderBase]: 17331/23810 cut-off events. [2024-06-27 23:53:39,550 INFO L125 PetriNetUnfolderBase]: For 323610/323610 co-relation queries the response was YES. [2024-06-27 23:53:39,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122237 conditions, 23810 events. 17331/23810 cut-off events. For 323610/323610 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 129958 event pairs, 9609 based on Foata normal form. 5/23577 useless extension candidates. Maximal degree in co-relation 122187. Up to 23199 conditions per place. [2024-06-27 23:53:39,799 INFO L140 encePairwiseOnDemand]: 37/53 looper letters, 231 selfloop transitions, 41 changer transitions 0/277 dead transitions. [2024-06-27 23:53:39,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 277 transitions, 4051 flow [2024-06-27 23:53:39,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 23:53:39,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 23:53:39,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 179 transitions. [2024-06-27 23:53:39,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4221698113207547 [2024-06-27 23:53:39,800 INFO L175 Difference]: Start difference. First operand has 121 places, 226 transitions, 3038 flow. Second operand 8 states and 179 transitions. [2024-06-27 23:53:39,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 277 transitions, 4051 flow [2024-06-27 23:53:40,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 277 transitions, 3815 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-06-27 23:53:40,057 INFO L231 Difference]: Finished difference. Result has 125 places, 242 transitions, 3248 flow [2024-06-27 23:53:40,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2820, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3248, PETRI_PLACES=125, PETRI_TRANSITIONS=242} [2024-06-27 23:53:40,058 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 69 predicate places. [2024-06-27 23:53:40,058 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 242 transitions, 3248 flow [2024-06-27 23:53:40,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:53:40,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:53:40,058 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:53:40,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-06-27 23:53:40,058 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:53:40,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:53:40,059 INFO L85 PathProgramCache]: Analyzing trace with hash -2145213833, now seen corresponding path program 3 times [2024-06-27 23:53:40,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:53:40,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796362672] [2024-06-27 23:53:40,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:53:40,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:53:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:53:41,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:53:41,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:53:41,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796362672] [2024-06-27 23:53:41,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796362672] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:53:41,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:53:41,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 23:53:41,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053508968] [2024-06-27 23:53:41,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:53:41,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 23:53:41,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:53:41,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 23:53:41,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-27 23:53:41,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-27 23:53:41,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 242 transitions, 3248 flow. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:53:41,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:53:41,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-27 23:53:41,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:53:45,637 INFO L124 PetriNetUnfolderBase]: 17322/23798 cut-off events. [2024-06-27 23:53:45,637 INFO L125 PetriNetUnfolderBase]: For 349321/349321 co-relation queries the response was YES. [2024-06-27 23:53:45,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123343 conditions, 23798 events. 17322/23798 cut-off events. For 349321/349321 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 130037 event pairs, 9582 based on Foata normal form. 3/23563 useless extension candidates. Maximal degree in co-relation 123292. Up to 23157 conditions per place. [2024-06-27 23:53:45,823 INFO L140 encePairwiseOnDemand]: 37/53 looper letters, 231 selfloop transitions, 49 changer transitions 0/285 dead transitions. [2024-06-27 23:53:45,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 285 transitions, 4013 flow [2024-06-27 23:53:45,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 23:53:45,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 23:53:45,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 201 transitions. [2024-06-27 23:53:45,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42138364779874216 [2024-06-27 23:53:45,824 INFO L175 Difference]: Start difference. First operand has 125 places, 242 transitions, 3248 flow. Second operand 9 states and 201 transitions. [2024-06-27 23:53:45,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 285 transitions, 4013 flow [2024-06-27 23:53:46,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 285 transitions, 3950 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-06-27 23:53:46,251 INFO L231 Difference]: Finished difference. Result has 128 places, 242 transitions, 3318 flow [2024-06-27 23:53:46,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=3185, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3318, PETRI_PLACES=128, PETRI_TRANSITIONS=242} [2024-06-27 23:53:46,252 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 72 predicate places. [2024-06-27 23:53:46,252 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 242 transitions, 3318 flow [2024-06-27 23:53:46,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:53:46,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:53:46,252 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:53:46,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-06-27 23:53:46,253 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-27 23:53:46,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:53:46,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1963346082, now seen corresponding path program 1 times [2024-06-27 23:53:46,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:53:46,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098288036] [2024-06-27 23:53:46,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:53:46,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:53:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat