./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/protection/mix014_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/mix014_power.oepc_pso.oepc_rmo.oepc.i ./goblint.2024-06-19_11-23-25.files/protection/mix014_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 18:18:57,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 18:18:57,803 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 18:18:57,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 18:18:57,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 18:18:57,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 18:18:57,834 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 18:18:57,835 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 18:18:57,835 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 18:18:57,838 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 18:18:57,838 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 18:18:57,838 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 18:18:57,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 18:18:57,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 18:18:57,840 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 18:18:57,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 18:18:57,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 18:18:57,841 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 18:18:57,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 18:18:57,842 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 18:18:57,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 18:18:57,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 18:18:57,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 18:18:57,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 18:18:57,843 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 18:18:57,843 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 18:18:57,843 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 18:18:57,843 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 18:18:57,844 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 18:18:57,844 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 18:18:57,845 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 18:18:57,845 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 18:18:57,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:18:57,845 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 18:18:57,845 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 18:18:57,846 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 18:18:57,846 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 18:18:57,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 18:18:57,846 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 18:18:57,846 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 18:18:57,847 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 18:18:57,847 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 18:18:57,847 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 18:18:57,847 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 18:18:58,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 18:18:58,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 18:18:58,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 18:18:58,104 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 18:18:58,104 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 18:18:58,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i [2024-06-27 18:18:59,096 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 18:18:59,325 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 18:18:59,326 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i [2024-06-27 18:18:59,336 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f006ae9ec/f212d2b4347a4fc9be5d57b5f8078df2/FLAG72bbc56f5 [2024-06-27 18:18:59,346 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f006ae9ec/f212d2b4347a4fc9be5d57b5f8078df2 [2024-06-27 18:18:59,348 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 18:18:59,348 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 18:18:59,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/mix014_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml [2024-06-27 18:18:59,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 18:18:59,561 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 18:18:59,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 18:18:59,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 18:18:59,565 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 18:18:59,566 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:18:59" (1/2) ... [2024-06-27 18:18:59,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4695c484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:18:59, skipping insertion in model container [2024-06-27 18:18:59,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:18:59" (1/2) ... [2024-06-27 18:18:59,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@632dac32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:18:59, skipping insertion in model container [2024-06-27 18:18:59,568 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:18:59" (2/2) ... [2024-06-27 18:18:59,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4695c484 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:18:59, skipping insertion in model container [2024-06-27 18:18:59,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:18:59" (2/2) ... [2024-06-27 18:18:59,569 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 18:18:59,665 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 18:18:59,666 INFO L97 edCorrectnessWitness]: Location invariant before [L874-L874] (((((((((((((((((((((((! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EBX == 0 || __unbuffered_p1_EBX == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1) || __unbuffered_p1_EAX == 2))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1)) [2024-06-27 18:18:59,667 INFO L97 edCorrectnessWitness]: Location invariant before [L878-L878] (((((((((((((((((((((((! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EBX == 0 || __unbuffered_p1_EBX == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1) || __unbuffered_p1_EAX == 2))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1)) [2024-06-27 18:18:59,667 INFO L97 edCorrectnessWitness]: Location invariant before [L879-L879] (((((((((((((((((((((((! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EBX == 0 || __unbuffered_p1_EBX == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1) || __unbuffered_p1_EAX == 2))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1)) [2024-06-27 18:18:59,667 INFO L97 edCorrectnessWitness]: Location invariant before [L876-L876] (((((((((((((((((((((((! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EBX == 0 || __unbuffered_p1_EBX == 1))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1) || __unbuffered_p1_EAX == 2))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1))) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1)) [2024-06-27 18:18:59,668 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 18:18:59,668 INFO L106 edCorrectnessWitness]: ghost_update [L872-L872] multithreaded = 1; [2024-06-27 18:18:59,709 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 18:18:59,854 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-06-27 18:19:00,030 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:19:00,040 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 18:19:00,065 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i[969,982] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 18:19:00,138 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:19:00,169 INFO L206 MainTranslator]: Completed translation [2024-06-27 18:19:00,170 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:19:00 WrapperNode [2024-06-27 18:19:00,170 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 18:19:00,171 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 18:19:00,171 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 18:19:00,171 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 18:19:00,176 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 06:19:00" (1/1) ... [2024-06-27 18:19:00,187 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 06:19:00" (1/1) ... [2024-06-27 18:19:00,209 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 136 [2024-06-27 18:19:00,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 18:19:00,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 18:19:00,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 18:19:00,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 18:19:00,232 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 06:19:00" (1/1) ... [2024-06-27 18:19:00,232 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 06:19:00" (1/1) ... [2024-06-27 18:19:00,235 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 06:19:00" (1/1) ... [2024-06-27 18:19:00,247 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 18:19:00,259 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 06:19:00" (1/1) ... [2024-06-27 18:19:00,260 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 06:19:00" (1/1) ... [2024-06-27 18:19:00,267 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 06:19:00" (1/1) ... [2024-06-27 18:19:00,269 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 06:19:00" (1/1) ... [2024-06-27 18:19:00,270 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 06:19:00" (1/1) ... [2024-06-27 18:19:00,271 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 06:19:00" (1/1) ... [2024-06-27 18:19:00,274 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 18:19:00,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 18:19:00,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 18:19:00,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 18:19:00,279 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 06:19:00" (1/1) ... [2024-06-27 18:19:00,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:19:00,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 18:19:00,318 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 18:19:00,337 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 18:19:00,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 18:19:00,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 18:19:00,349 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 18:19:00,350 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 18:19:00,350 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 18:19:00,350 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 18:19:00,350 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 18:19:00,350 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 18:19:00,350 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 18:19:00,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 18:19:00,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 18:19:00,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 18:19:00,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 18:19:00,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 18:19:00,354 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 18:19:00,483 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 18:19:00,484 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 18:19:00,811 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 18:19:00,811 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 18:19:00,961 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 18:19:00,961 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 18:19:00,962 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:19:00 BoogieIcfgContainer [2024-06-27 18:19:00,962 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 18:19:00,964 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 18:19:00,964 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 18:19:00,966 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 18:19:00,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 06:18:59" (1/4) ... [2024-06-27 18:19:00,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb6ac6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:19:00, skipping insertion in model container [2024-06-27 18:19:00,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:18:59" (2/4) ... [2024-06-27 18:19:00,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb6ac6a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:19:00, skipping insertion in model container [2024-06-27 18:19:00,968 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 06:19:00" (3/4) ... [2024-06-27 18:19:00,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb6ac6a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:19:00, skipping insertion in model container [2024-06-27 18:19:00,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:19:00" (4/4) ... [2024-06-27 18:19:00,973 INFO L112 eAbstractionObserver]: Analyzing ICFG mix014_power.oepc_pso.oepc_rmo.oepc.i [2024-06-27 18:19:00,986 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 18:19:00,986 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-27 18:19:00,986 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 18:19:01,029 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 18:19:01,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 59 transitions, 134 flow [2024-06-27 18:19:01,089 INFO L124 PetriNetUnfolderBase]: 1/55 cut-off events. [2024-06-27 18:19:01,089 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:19:01,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 55 events. 1/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2024-06-27 18:19:01,093 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 59 transitions, 134 flow [2024-06-27 18:19:01,097 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 55 transitions, 122 flow [2024-06-27 18:19:01,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 18:19:01,115 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;@356e43db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 18:19:01,115 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-27 18:19:01,118 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 18:19:01,119 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 18:19:01,119 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:19:01,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:19:01,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 18:19:01,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:19:01,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:19:01,126 INFO L85 PathProgramCache]: Analyzing trace with hash 386848112, now seen corresponding path program 1 times [2024-06-27 18:19:01,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:19:01,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542374376] [2024-06-27 18:19:01,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:19:01,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:19:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:19:02,055 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 18:19:02,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:19:02,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542374376] [2024-06-27 18:19:02,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542374376] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:19:02,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:19:02,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 18:19:02,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733084073] [2024-06-27 18:19:02,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:19:02,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:19:02,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:19:02,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:19:02,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:19:02,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 59 [2024-06-27 18:19:02,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:19:02,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:19:02,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 59 [2024-06-27 18:19:02,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:19:05,549 INFO L124 PetriNetUnfolderBase]: 25098/37455 cut-off events. [2024-06-27 18:19:05,550 INFO L125 PetriNetUnfolderBase]: For 215/215 co-relation queries the response was YES. [2024-06-27 18:19:05,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71210 conditions, 37455 events. 25098/37455 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 1409. Compared 272898 event pairs, 20823 based on Foata normal form. 876/35858 useless extension candidates. Maximal degree in co-relation 71197. Up to 33298 conditions per place. [2024-06-27 18:19:05,793 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 52 selfloop transitions, 6 changer transitions 0/73 dead transitions. [2024-06-27 18:19:05,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 73 transitions, 283 flow [2024-06-27 18:19:05,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:19:05,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:19:05,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-06-27 18:19:05,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6836158192090396 [2024-06-27 18:19:05,803 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 122 flow. Second operand 3 states and 121 transitions. [2024-06-27 18:19:05,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 73 transitions, 283 flow [2024-06-27 18:19:05,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 73 transitions, 276 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 18:19:05,808 INFO L231 Difference]: Finished difference. Result has 66 places, 59 transitions, 162 flow [2024-06-27 18:19:05,810 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=66, PETRI_TRANSITIONS=59} [2024-06-27 18:19:05,812 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -1 predicate places. [2024-06-27 18:19:05,812 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 59 transitions, 162 flow [2024-06-27 18:19:05,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:19:05,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:19:05,813 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 18:19:05,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 18:19:05,813 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:19:05,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:19:05,814 INFO L85 PathProgramCache]: Analyzing trace with hash 386849000, now seen corresponding path program 1 times [2024-06-27 18:19:05,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:19:05,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861887332] [2024-06-27 18:19:05,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:19:05,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:19:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:19:05,850 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 18:19:05,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:19:05,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861887332] [2024-06-27 18:19:05,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861887332] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:19:05,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:19:05,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 18:19:05,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801767360] [2024-06-27 18:19:05,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:19:05,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:19:05,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:19:05,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:19:05,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:19:05,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 59 [2024-06-27 18:19:05,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:19:05,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:19:05,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 59 [2024-06-27 18:19:05,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:19:06,678 INFO L124 PetriNetUnfolderBase]: 5221/9252 cut-off events. [2024-06-27 18:19:06,679 INFO L125 PetriNetUnfolderBase]: For 688/688 co-relation queries the response was YES. [2024-06-27 18:19:06,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17552 conditions, 9252 events. 5221/9252 cut-off events. For 688/688 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 74350 event pairs, 3410 based on Foata normal form. 0/8480 useless extension candidates. Maximal degree in co-relation 17540. Up to 6080 conditions per place. [2024-06-27 18:19:06,742 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 45 selfloop transitions, 3 changer transitions 0/78 dead transitions. [2024-06-27 18:19:06,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 78 transitions, 297 flow [2024-06-27 18:19:06,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:19:06,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:19:06,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2024-06-27 18:19:06,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7966101694915254 [2024-06-27 18:19:06,746 INFO L175 Difference]: Start difference. First operand has 66 places, 59 transitions, 162 flow. Second operand 3 states and 141 transitions. [2024-06-27 18:19:06,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 78 transitions, 297 flow [2024-06-27 18:19:06,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 78 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 18:19:06,748 INFO L231 Difference]: Finished difference. Result has 66 places, 57 transitions, 154 flow [2024-06-27 18:19:06,748 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=66, PETRI_TRANSITIONS=57} [2024-06-27 18:19:06,749 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -1 predicate places. [2024-06-27 18:19:06,749 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 57 transitions, 154 flow [2024-06-27 18:19:06,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:19:06,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:19:06,749 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:19:06,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 18:19:06,750 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:19:06,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:19:06,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1901058194, now seen corresponding path program 1 times [2024-06-27 18:19:06,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:19:06,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132688998] [2024-06-27 18:19:06,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:19:06,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:19:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:19:07,313 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 18:19:07,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:19:07,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132688998] [2024-06-27 18:19:07,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132688998] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:19:07,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:19:07,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 18:19:07,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829805483] [2024-06-27 18:19:07,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:19:07,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 18:19:07,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:19:07,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 18:19:07,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 18:19:07,359 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 59 [2024-06-27 18:19:07,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 57 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:19:07,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:19:07,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 59 [2024-06-27 18:19:07,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:19:09,804 INFO L124 PetriNetUnfolderBase]: 21348/31847 cut-off events. [2024-06-27 18:19:09,804 INFO L125 PetriNetUnfolderBase]: For 7123/7123 co-relation queries the response was YES. [2024-06-27 18:19:09,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67864 conditions, 31847 events. 21348/31847 cut-off events. For 7123/7123 co-relation queries the response was YES. Maximal size of possible extension queue 1180. Compared 224021 event pairs, 15405 based on Foata normal form. 4/30927 useless extension candidates. Maximal degree in co-relation 67851. Up to 28350 conditions per place. [2024-06-27 18:19:10,247 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 64 selfloop transitions, 10 changer transitions 2/91 dead transitions. [2024-06-27 18:19:10,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 91 transitions, 402 flow [2024-06-27 18:19:10,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 18:19:10,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 18:19:10,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 152 transitions. [2024-06-27 18:19:10,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6440677966101694 [2024-06-27 18:19:10,250 INFO L175 Difference]: Start difference. First operand has 66 places, 57 transitions, 154 flow. Second operand 4 states and 152 transitions. [2024-06-27 18:19:10,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 91 transitions, 402 flow [2024-06-27 18:19:10,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 91 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 18:19:10,254 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 235 flow [2024-06-27 18:19:10,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2024-06-27 18:19:10,255 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2024-06-27 18:19:10,256 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 235 flow [2024-06-27 18:19:10,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:19:10,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:19:10,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:19:10,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 18:19:10,257 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:19:10,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:19:10,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1196740125, now seen corresponding path program 1 times [2024-06-27 18:19:10,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:19:10,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158443217] [2024-06-27 18:19:10,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:19:10,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:19:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:19:10,900 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 18:19:10,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:19:10,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158443217] [2024-06-27 18:19:10,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158443217] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:19:10,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:19:10,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 18:19:10,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798420250] [2024-06-27 18:19:10,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:19:10,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 18:19:10,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:19:10,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 18:19:10,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 18:19:10,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-27 18:19:10,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 235 flow. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:19:10,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:19:10,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-27 18:19:10,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:19:13,355 INFO L124 PetriNetUnfolderBase]: 22379/33799 cut-off events. [2024-06-27 18:19:13,355 INFO L125 PetriNetUnfolderBase]: For 15054/15054 co-relation queries the response was YES. [2024-06-27 18:19:13,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77735 conditions, 33799 events. 22379/33799 cut-off events. For 15054/15054 co-relation queries the response was YES. Maximal size of possible extension queue 1224. Compared 240106 event pairs, 13622 based on Foata normal form. 7/32774 useless extension candidates. Maximal degree in co-relation 77720. Up to 29590 conditions per place. [2024-06-27 18:19:13,568 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 86 selfloop transitions, 23 changer transitions 0/123 dead transitions. [2024-06-27 18:19:13,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 123 transitions, 649 flow [2024-06-27 18:19:13,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:19:13,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:19:13,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 192 transitions. [2024-06-27 18:19:13,572 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6508474576271186 [2024-06-27 18:19:13,572 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 235 flow. Second operand 5 states and 192 transitions. [2024-06-27 18:19:13,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 123 transitions, 649 flow [2024-06-27 18:19:13,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 123 transitions, 634 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-06-27 18:19:13,581 INFO L231 Difference]: Finished difference. Result has 74 places, 80 transitions, 382 flow [2024-06-27 18:19:13,581 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=382, PETRI_PLACES=74, PETRI_TRANSITIONS=80} [2024-06-27 18:19:13,583 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 7 predicate places. [2024-06-27 18:19:13,583 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 80 transitions, 382 flow [2024-06-27 18:19:13,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:19:13,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:19:13,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:19:13,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 18:19:13,584 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:19:13,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:19:13,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1555759763, now seen corresponding path program 1 times [2024-06-27 18:19:13,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:19:13,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041673011] [2024-06-27 18:19:13,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:19:13,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:19:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:19:14,575 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 18:19:14,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:19:14,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041673011] [2024-06-27 18:19:14,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041673011] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:19:14,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:19:14,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:19:14,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426623669] [2024-06-27 18:19:14,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:19:14,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:19:14,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:19:14,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:19:14,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:19:14,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-27 18:19:14,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 80 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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 18:19:14,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:19:14,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-27 18:19:14,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:19:17,302 INFO L124 PetriNetUnfolderBase]: 22416/31415 cut-off events. [2024-06-27 18:19:17,303 INFO L125 PetriNetUnfolderBase]: For 35247/35252 co-relation queries the response was YES. [2024-06-27 18:19:17,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86674 conditions, 31415 events. 22416/31415 cut-off events. For 35247/35252 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 199129 event pairs, 11137 based on Foata normal form. 11/31266 useless extension candidates. Maximal degree in co-relation 86655. Up to 29561 conditions per place. [2024-06-27 18:19:17,549 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 100 selfloop transitions, 43 changer transitions 0/157 dead transitions. [2024-06-27 18:19:17,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 157 transitions, 980 flow [2024-06-27 18:19:17,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:19:17,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:19:17,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 229 transitions. [2024-06-27 18:19:17,553 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6468926553672316 [2024-06-27 18:19:17,553 INFO L175 Difference]: Start difference. First operand has 74 places, 80 transitions, 382 flow. Second operand 6 states and 229 transitions. [2024-06-27 18:19:17,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 157 transitions, 980 flow [2024-06-27 18:19:17,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 157 transitions, 968 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-27 18:19:17,574 INFO L231 Difference]: Finished difference. Result has 83 places, 99 transitions, 654 flow [2024-06-27 18:19:17,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=654, PETRI_PLACES=83, PETRI_TRANSITIONS=99} [2024-06-27 18:19:17,577 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 16 predicate places. [2024-06-27 18:19:17,577 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 99 transitions, 654 flow [2024-06-27 18:19:17,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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 18:19:17,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:19:17,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:19:17,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 18:19:17,578 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:19:17,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:19:17,578 INFO L85 PathProgramCache]: Analyzing trace with hash -983910340, now seen corresponding path program 1 times [2024-06-27 18:19:17,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:19:17,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144381240] [2024-06-27 18:19:17,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:19:17,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:19:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:19:18,559 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 18:19:18,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:19:18,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144381240] [2024-06-27 18:19:18,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144381240] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:19:18,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:19:18,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:19:18,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805207584] [2024-06-27 18:19:18,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:19:18,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:19:18,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:19:18,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:19:18,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:19:18,658 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-27 18:19:18,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 99 transitions, 654 flow. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 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 18:19:18,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:19:18,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-27 18:19:18,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:19:21,632 INFO L124 PetriNetUnfolderBase]: 22492/34042 cut-off events. [2024-06-27 18:19:21,632 INFO L125 PetriNetUnfolderBase]: For 70447/70457 co-relation queries the response was YES. [2024-06-27 18:19:21,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102347 conditions, 34042 events. 22492/34042 cut-off events. For 70447/70457 co-relation queries the response was YES. Maximal size of possible extension queue 1234. Compared 242980 event pairs, 10369 based on Foata normal form. 22/33010 useless extension candidates. Maximal degree in co-relation 102322. Up to 29590 conditions per place. [2024-06-27 18:19:21,976 INFO L140 encePairwiseOnDemand]: 45/59 looper letters, 128 selfloop transitions, 32 changer transitions 0/174 dead transitions. [2024-06-27 18:19:21,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 174 transitions, 1273 flow [2024-06-27 18:19:21,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 18:19:21,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 18:19:21,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 260 transitions. [2024-06-27 18:19:21,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6295399515738499 [2024-06-27 18:19:21,978 INFO L175 Difference]: Start difference. First operand has 83 places, 99 transitions, 654 flow. Second operand 7 states and 260 transitions. [2024-06-27 18:19:21,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 174 transitions, 1273 flow [2024-06-27 18:19:22,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 174 transitions, 1205 flow, removed 34 selfloop flow, removed 0 redundant places. [2024-06-27 18:19:22,025 INFO L231 Difference]: Finished difference. Result has 90 places, 107 transitions, 758 flow [2024-06-27 18:19:22,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=758, PETRI_PLACES=90, PETRI_TRANSITIONS=107} [2024-06-27 18:19:22,026 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 23 predicate places. [2024-06-27 18:19:22,026 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 107 transitions, 758 flow [2024-06-27 18:19:22,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 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 18:19:22,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:19:22,027 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:19:22,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 18:19:22,028 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:19:22,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:19:22,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1932362324, now seen corresponding path program 1 times [2024-06-27 18:19:22,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:19:22,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182816711] [2024-06-27 18:19:22,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:19:22,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:19:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:19:22,709 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 18:19:22,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:19:22,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182816711] [2024-06-27 18:19:22,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182816711] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:19:22,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:19:22,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:19:22,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862482982] [2024-06-27 18:19:22,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:19:22,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:19:22,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:19:22,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:19:22,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:19:22,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-06-27 18:19:22,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 107 transitions, 758 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 18:19:22,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:19:22,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-06-27 18:19:22,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:19:26,467 INFO L124 PetriNetUnfolderBase]: 26062/39024 cut-off events. [2024-06-27 18:19:26,468 INFO L125 PetriNetUnfolderBase]: For 85711/85711 co-relation queries the response was YES. [2024-06-27 18:19:26,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116734 conditions, 39024 events. 26062/39024 cut-off events. For 85711/85711 co-relation queries the response was YES. Maximal size of possible extension queue 1348. Compared 278868 event pairs, 14138 based on Foata normal form. 3/38119 useless extension candidates. Maximal degree in co-relation 116704. Up to 34524 conditions per place. [2024-06-27 18:19:26,825 INFO L140 encePairwiseOnDemand]: 49/59 looper letters, 100 selfloop transitions, 18 changer transitions 0/130 dead transitions. [2024-06-27 18:19:26,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 130 transitions, 1050 flow [2024-06-27 18:19:26,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:19:26,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:19:26,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 155 transitions. [2024-06-27 18:19:26,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5254237288135594 [2024-06-27 18:19:26,826 INFO L175 Difference]: Start difference. First operand has 90 places, 107 transitions, 758 flow. Second operand 5 states and 155 transitions. [2024-06-27 18:19:26,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 130 transitions, 1050 flow [2024-06-27 18:19:26,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 130 transitions, 965 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-06-27 18:19:26,863 INFO L231 Difference]: Finished difference. Result has 91 places, 107 transitions, 725 flow [2024-06-27 18:19:26,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=725, PETRI_PLACES=91, PETRI_TRANSITIONS=107} [2024-06-27 18:19:26,863 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 24 predicate places. [2024-06-27 18:19:26,864 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 107 transitions, 725 flow [2024-06-27 18:19:26,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 18:19:26,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:19:26,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:19:26,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 18:19:26,864 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:19:26,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:19:26,865 INFO L85 PathProgramCache]: Analyzing trace with hash -227144559, now seen corresponding path program 1 times [2024-06-27 18:19:26,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:19:26,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540823025] [2024-06-27 18:19:26,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:19:26,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:19:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:19:27,959 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 18:19:27,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:19:27,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540823025] [2024-06-27 18:19:27,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540823025] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:19:27,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:19:27,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:19:27,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704579281] [2024-06-27 18:19:27,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:19:27,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:19:27,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:19:27,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:19:27,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:19:28,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-06-27 18:19:28,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 107 transitions, 725 flow. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 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 18:19:28,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:19:28,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-06-27 18:19:28,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:19:32,154 INFO L124 PetriNetUnfolderBase]: 26044/39083 cut-off events. [2024-06-27 18:19:32,154 INFO L125 PetriNetUnfolderBase]: For 91289/91289 co-relation queries the response was YES. [2024-06-27 18:19:32,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117302 conditions, 39083 events. 26044/39083 cut-off events. For 91289/91289 co-relation queries the response was YES. Maximal size of possible extension queue 1350. Compared 279824 event pairs, 13573 based on Foata normal form. 6/38181 useless extension candidates. Maximal degree in co-relation 117270. Up to 34454 conditions per place. [2024-06-27 18:19:32,565 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 112 selfloop transitions, 22 changer transitions 0/146 dead transitions. [2024-06-27 18:19:32,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 146 transitions, 1111 flow [2024-06-27 18:19:32,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:19:32,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:19:32,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 187 transitions. [2024-06-27 18:19:32,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5282485875706214 [2024-06-27 18:19:32,568 INFO L175 Difference]: Start difference. First operand has 91 places, 107 transitions, 725 flow. Second operand 6 states and 187 transitions. [2024-06-27 18:19:32,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 146 transitions, 1111 flow [2024-06-27 18:19:32,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 146 transitions, 1058 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-06-27 18:19:32,617 INFO L231 Difference]: Finished difference. Result has 93 places, 111 transitions, 766 flow [2024-06-27 18:19:32,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=766, PETRI_PLACES=93, PETRI_TRANSITIONS=111} [2024-06-27 18:19:32,618 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 26 predicate places. [2024-06-27 18:19:32,618 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 111 transitions, 766 flow [2024-06-27 18:19:32,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 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 18:19:32,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:19:32,618 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:19:32,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 18:19:32,618 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:19:32,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:19:32,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1566978118, now seen corresponding path program 1 times [2024-06-27 18:19:32,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:19:32,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382662034] [2024-06-27 18:19:32,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:19:32,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:19:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:19:33,321 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 18:19:33,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:19:33,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382662034] [2024-06-27 18:19:33,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382662034] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:19:33,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:19:33,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:19:33,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599888018] [2024-06-27 18:19:33,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:19:33,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:19:33,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:19:33,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:19:33,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:19:33,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-06-27 18:19:33,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 111 transitions, 766 flow. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 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 18:19:33,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:19:33,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-06-27 18:19:33,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:19:37,208 INFO L124 PetriNetUnfolderBase]: 26073/38966 cut-off events. [2024-06-27 18:19:37,208 INFO L125 PetriNetUnfolderBase]: For 113248/113263 co-relation queries the response was YES. [2024-06-27 18:19:37,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124209 conditions, 38966 events. 26073/38966 cut-off events. For 113248/113263 co-relation queries the response was YES. Maximal size of possible extension queue 1318. Compared 274270 event pairs, 12891 based on Foata normal form. 18/37927 useless extension candidates. Maximal degree in co-relation 124177. Up to 34380 conditions per place. [2024-06-27 18:19:37,507 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 116 selfloop transitions, 27 changer transitions 0/155 dead transitions. [2024-06-27 18:19:37,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 155 transitions, 1242 flow [2024-06-27 18:19:37,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:19:37,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:19:37,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 195 transitions. [2024-06-27 18:19:37,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5508474576271186 [2024-06-27 18:19:37,509 INFO L175 Difference]: Start difference. First operand has 93 places, 111 transitions, 766 flow. Second operand 6 states and 195 transitions. [2024-06-27 18:19:37,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 155 transitions, 1242 flow [2024-06-27 18:19:37,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 155 transitions, 1184 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-06-27 18:19:37,558 INFO L231 Difference]: Finished difference. Result has 95 places, 115 transitions, 821 flow [2024-06-27 18:19:37,559 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=821, PETRI_PLACES=95, PETRI_TRANSITIONS=115} [2024-06-27 18:19:37,559 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 28 predicate places. [2024-06-27 18:19:37,559 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 115 transitions, 821 flow [2024-06-27 18:19:37,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 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 18:19:37,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:19:37,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:19:37,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 18:19:37,560 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:19:37,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:19:37,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1574969608, now seen corresponding path program 2 times [2024-06-27 18:19:37,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:19:37,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057098908] [2024-06-27 18:19:37,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:19:37,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:19:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:19:38,176 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 18:19:38,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:19:38,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057098908] [2024-06-27 18:19:38,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057098908] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:19:38,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:19:38,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:19:38,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468779569] [2024-06-27 18:19:38,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:19:38,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:19:38,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:19:38,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:19:38,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:19:38,296 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-06-27 18:19:38,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 115 transitions, 821 flow. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 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 18:19:38,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:19:38,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-06-27 18:19:38,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand