./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix017_pso.opt_tso.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/protection/mix017_pso.opt_tso.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix017_pso.opt_tso.opt.i ./goblint.2024-06-19_11-23-25.files/protection/mix017_pso.opt_tso.opt.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 18:21:07,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 18:21:07,873 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 18:21:07,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 18:21:07,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 18:21:07,917 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 18:21:07,917 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 18:21:07,918 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 18:21:07,920 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 18:21:07,923 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 18:21:07,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 18:21:07,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 18:21:07,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 18:21:07,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 18:21:07,937 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 18:21:07,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 18:21:07,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 18:21:07,938 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 18:21:07,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 18:21:07,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 18:21:07,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 18:21:07,938 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 18:21:07,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 18:21:07,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 18:21:07,939 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 18:21:07,939 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 18:21:07,939 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 18:21:07,939 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 18:21:07,940 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 18:21:07,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 18:21:07,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 18:21:07,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 18:21:07,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:21:07,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 18:21:07,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 18:21:07,941 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 18:21:07,941 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 18:21:07,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 18:21:07,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 18:21:07,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 18:21:07,942 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 18:21:07,942 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 18:21:07,942 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 18:21:07,942 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 18:21:08,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 18:21:08,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 18:21:08,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 18:21:08,359 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 18:21:08,360 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 18:21:08,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/mix017_pso.opt_tso.opt.yml/witness.yml [2024-06-27 18:21:08,566 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 18:21:08,566 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 18:21:08,566 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix017_pso.opt_tso.opt.i [2024-06-27 18:21:09,760 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 18:21:10,043 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 18:21:10,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix017_pso.opt_tso.opt.i [2024-06-27 18:21:10,064 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670adc689/8ea899f34c864e2587502a1e1c8b7388/FLAG8f4208a2c [2024-06-27 18:21:10,078 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670adc689/8ea899f34c864e2587502a1e1c8b7388 [2024-06-27 18:21:10,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 18:21:10,080 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 18:21:10,082 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 18:21:10,082 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 18:21:10,086 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 18:21:10,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:21:08" (1/2) ... [2024-06-27 18:21:10,087 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bbf0529 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:10, skipping insertion in model container [2024-06-27 18:21:10,087 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:21:08" (1/2) ... [2024-06-27 18:21:10,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@657d700c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:10, skipping insertion in model container [2024-06-27 18:21:10,088 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:21:10" (2/2) ... [2024-06-27 18:21:10,089 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bbf0529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:10, skipping insertion in model container [2024-06-27 18:21:10,089 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:21:10" (2/2) ... [2024-06-27 18:21:10,090 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 18:21:10,188 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 18:21:10,190 INFO L97 edCorrectnessWitness]: Location invariant before [L874-L874] (((((((((((((((((((((((! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1)) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1))) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) [2024-06-27 18:21:10,190 INFO L97 edCorrectnessWitness]: Location invariant before [L869-L869] (((((((((((((((((((((((! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1)) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1))) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) [2024-06-27 18:21:10,190 INFO L97 edCorrectnessWitness]: Location invariant before [L871-L871] (((((((((((((((((((((((! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1)) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1))) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) [2024-06-27 18:21:10,190 INFO L97 edCorrectnessWitness]: Location invariant before [L873-L873] (((((((((((((((((((((((! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1)) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1))) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) [2024-06-27 18:21:10,190 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 18:21:10,191 INFO L106 edCorrectnessWitness]: ghost_update [L867-L867] multithreaded = 1; [2024-06-27 18:21:10,231 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 18:21:10,371 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/mix017_pso.opt_tso.opt.i[956,969] [2024-06-27 18:21:10,537 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:21:10,546 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 18:21:10,576 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/mix017_pso.opt_tso.opt.i[956,969] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 18:21:10,683 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:21:10,718 INFO L206 MainTranslator]: Completed translation [2024-06-27 18:21:10,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:10 WrapperNode [2024-06-27 18:21:10,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 18:21:10,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 18:21:10,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 18:21:10,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 18:21:10,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:10" (1/1) ... [2024-06-27 18:21:10,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:10" (1/1) ... [2024-06-27 18:21:10,767 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 158 [2024-06-27 18:21:10,767 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 18:21:10,768 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 18:21:10,768 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 18:21:10,768 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 18:21:10,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:10" (1/1) ... [2024-06-27 18:21:10,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:10" (1/1) ... [2024-06-27 18:21:10,779 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:10" (1/1) ... [2024-06-27 18:21:10,807 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 18:21:10,808 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:10" (1/1) ... [2024-06-27 18:21:10,808 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:10" (1/1) ... [2024-06-27 18:21:10,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:10" (1/1) ... [2024-06-27 18:21:10,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:10" (1/1) ... [2024-06-27 18:21:10,835 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:10" (1/1) ... [2024-06-27 18:21:10,840 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:10" (1/1) ... [2024-06-27 18:21:10,843 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 18:21:10,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 18:21:10,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 18:21:10,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 18:21:10,846 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:10" (1/1) ... [2024-06-27 18:21:10,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:21:10,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 18:21:10,889 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 18:21:10,931 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 18:21:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 18:21:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 18:21:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 18:21:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 18:21:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 18:21:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 18:21:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 18:21:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 18:21:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 18:21:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 18:21:10,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 18:21:10,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 18:21:10,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 18:21:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 18:21:10,960 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 18:21:11,116 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 18:21:11,118 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 18:21:11,391 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 18:21:11,391 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 18:21:11,536 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 18:21:11,536 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 18:21:11,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:21:11 BoogieIcfgContainer [2024-06-27 18:21:11,537 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 18:21:11,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 18:21:11,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 18:21:11,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 18:21:11,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:21:08" (1/4) ... [2024-06-27 18:21:11,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd6c217 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:21:11, skipping insertion in model container [2024-06-27 18:21:11,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 06:21:10" (2/4) ... [2024-06-27 18:21:11,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd6c217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:21:11, skipping insertion in model container [2024-06-27 18:21:11,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:10" (3/4) ... [2024-06-27 18:21:11,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd6c217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:21:11, skipping insertion in model container [2024-06-27 18:21:11,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:21:11" (4/4) ... [2024-06-27 18:21:11,544 INFO L112 eAbstractionObserver]: Analyzing ICFG mix017_pso.opt_tso.opt.i [2024-06-27 18:21:11,580 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 18:21:11,581 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-27 18:21:11,581 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 18:21:11,626 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 18:21:11,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 58 transitions, 132 flow [2024-06-27 18:21:11,688 INFO L124 PetriNetUnfolderBase]: 1/54 cut-off events. [2024-06-27 18:21:11,688 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:21:11,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 54 events. 1/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-06-27 18:21:11,692 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 58 transitions, 132 flow [2024-06-27 18:21:11,696 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 54 transitions, 120 flow [2024-06-27 18:21:11,706 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 18:21:11,722 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;@662e232c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 18:21:11,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-27 18:21:11,727 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 18:21:11,727 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 18:21:11,727 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:21:11,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:21:11,728 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 18:21:11,728 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:21:11,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:21:11,734 INFO L85 PathProgramCache]: Analyzing trace with hash 395619425, now seen corresponding path program 1 times [2024-06-27 18:21:11,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:21:11,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379582895] [2024-06-27 18:21:11,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:21:11,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:21:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:21:12,698 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 18:21:12,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:21:12,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379582895] [2024-06-27 18:21:12,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379582895] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:21:12,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:21:12,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 18:21:12,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987348384] [2024-06-27 18:21:12,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:21:12,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:21:12,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:21:12,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:21:12,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:21:12,777 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 58 [2024-06-27 18:21:12,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 54 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:21:12,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:21:12,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 58 [2024-06-27 18:21:12,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:21:14,729 INFO L124 PetriNetUnfolderBase]: 12650/17668 cut-off events. [2024-06-27 18:21:14,729 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2024-06-27 18:21:14,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34843 conditions, 17668 events. 12650/17668 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 740. Compared 109399 event pairs, 8207 based on Foata normal form. 561/17413 useless extension candidates. Maximal degree in co-relation 34830. Up to 16952 conditions per place. [2024-06-27 18:21:14,838 INFO L140 encePairwiseOnDemand]: 47/58 looper letters, 49 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2024-06-27 18:21:14,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 72 transitions, 275 flow [2024-06-27 18:21:14,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:21:14,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:21:14,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2024-06-27 18:21:14,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7126436781609196 [2024-06-27 18:21:14,850 INFO L175 Difference]: Start difference. First operand has 66 places, 54 transitions, 120 flow. Second operand 3 states and 124 transitions. [2024-06-27 18:21:14,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 72 transitions, 275 flow [2024-06-27 18:21:14,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 72 transitions, 268 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 18:21:14,859 INFO L231 Difference]: Finished difference. Result has 65 places, 58 transitions, 160 flow [2024-06-27 18:21:14,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=65, PETRI_TRANSITIONS=58} [2024-06-27 18:21:14,864 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -1 predicate places. [2024-06-27 18:21:14,864 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 58 transitions, 160 flow [2024-06-27 18:21:14,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:21:14,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:21:14,865 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:21:14,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 18:21:14,865 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:21:14,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:21:14,866 INFO L85 PathProgramCache]: Analyzing trace with hash -2061796160, now seen corresponding path program 1 times [2024-06-27 18:21:14,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:21:14,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888414393] [2024-06-27 18:21:14,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:21:14,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:21:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:21:15,680 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 18:21:15,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:21:15,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888414393] [2024-06-27 18:21:15,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888414393] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:21:15,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:21:15,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 18:21:15,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015145849] [2024-06-27 18:21:15,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:21:15,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 18:21:15,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:21:15,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 18:21:15,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 18:21:15,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 58 [2024-06-27 18:21:15,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 58 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:21:15,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:21:15,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 58 [2024-06-27 18:21:15,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:21:17,590 INFO L124 PetriNetUnfolderBase]: 14407/21679 cut-off events. [2024-06-27 18:21:17,591 INFO L125 PetriNetUnfolderBase]: For 3838/3838 co-relation queries the response was YES. [2024-06-27 18:21:17,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46444 conditions, 21679 events. 14407/21679 cut-off events. For 3838/3838 co-relation queries the response was YES. Maximal size of possible extension queue 936. Compared 152176 event pairs, 10359 based on Foata normal form. 4/20438 useless extension candidates. Maximal degree in co-relation 46432. Up to 19236 conditions per place. [2024-06-27 18:21:17,723 INFO L140 encePairwiseOnDemand]: 47/58 looper letters, 64 selfloop transitions, 11 changer transitions 0/91 dead transitions. [2024-06-27 18:21:17,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 91 transitions, 396 flow [2024-06-27 18:21:17,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 18:21:17,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 18:21:17,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions. [2024-06-27 18:21:17,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6853448275862069 [2024-06-27 18:21:17,730 INFO L175 Difference]: Start difference. First operand has 65 places, 58 transitions, 160 flow. Second operand 4 states and 159 transitions. [2024-06-27 18:21:17,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 91 transitions, 396 flow [2024-06-27 18:21:17,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 91 transitions, 390 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 18:21:17,734 INFO L231 Difference]: Finished difference. Result has 68 places, 63 transitions, 218 flow [2024-06-27 18:21:17,734 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2024-06-27 18:21:17,735 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 2 predicate places. [2024-06-27 18:21:17,737 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 218 flow [2024-06-27 18:21:17,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:21:17,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:21:17,738 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:21:17,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 18:21:17,743 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:21:17,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:21:17,744 INFO L85 PathProgramCache]: Analyzing trace with hash -641241503, now seen corresponding path program 1 times [2024-06-27 18:21:17,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:21:17,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155061140] [2024-06-27 18:21:17,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:21:17,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:21:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:21:18,842 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 18:21:18,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:21:18,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155061140] [2024-06-27 18:21:18,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155061140] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:21:18,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:21:18,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:21:18,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291509545] [2024-06-27 18:21:18,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:21:18,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:21:18,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:21:18,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:21:18,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:21:18,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 58 [2024-06-27 18:21:18,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 218 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:21:18,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:21:18,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 58 [2024-06-27 18:21:18,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:21:21,735 INFO L124 PetriNetUnfolderBase]: 18290/26548 cut-off events. [2024-06-27 18:21:21,735 INFO L125 PetriNetUnfolderBase]: For 11942/11942 co-relation queries the response was YES. [2024-06-27 18:21:21,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63686 conditions, 26548 events. 18290/26548 cut-off events. For 11942/11942 co-relation queries the response was YES. Maximal size of possible extension queue 1050. Compared 177948 event pairs, 8654 based on Foata normal form. 8/25151 useless extension candidates. Maximal degree in co-relation 63672. Up to 24240 conditions per place. [2024-06-27 18:21:22,044 INFO L140 encePairwiseOnDemand]: 46/58 looper letters, 90 selfloop transitions, 20 changer transitions 0/125 dead transitions. [2024-06-27 18:21:22,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 125 transitions, 616 flow [2024-06-27 18:21:22,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:21:22,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:21:22,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 228 transitions. [2024-06-27 18:21:22,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6551724137931034 [2024-06-27 18:21:22,047 INFO L175 Difference]: Start difference. First operand has 68 places, 63 transitions, 218 flow. Second operand 6 states and 228 transitions. [2024-06-27 18:21:22,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 125 transitions, 616 flow [2024-06-27 18:21:22,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 125 transitions, 580 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-06-27 18:21:22,054 INFO L231 Difference]: Finished difference. Result has 72 places, 71 transitions, 297 flow [2024-06-27 18:21:22,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=297, PETRI_PLACES=72, PETRI_TRANSITIONS=71} [2024-06-27 18:21:22,055 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 6 predicate places. [2024-06-27 18:21:22,059 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 71 transitions, 297 flow [2024-06-27 18:21:22,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:21:22,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:21:22,059 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:21:22,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 18:21:22,060 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:21:22,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:21:22,060 INFO L85 PathProgramCache]: Analyzing trace with hash -959644750, now seen corresponding path program 1 times [2024-06-27 18:21:22,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:21:22,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862412640] [2024-06-27 18:21:22,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:21:22,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:21:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:21:22,893 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 18:21:22,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:21:22,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862412640] [2024-06-27 18:21:22,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862412640] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:21:22,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:21:22,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:21:22,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687213226] [2024-06-27 18:21:22,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:21:22,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:21:22,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:21:22,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:21:22,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:21:22,996 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 58 [2024-06-27 18:21:22,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 71 transitions, 297 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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 18:21:22,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:21:22,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 58 [2024-06-27 18:21:22,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:21:25,326 INFO L124 PetriNetUnfolderBase]: 18280/25456 cut-off events. [2024-06-27 18:21:25,326 INFO L125 PetriNetUnfolderBase]: For 20908/20908 co-relation queries the response was YES. [2024-06-27 18:21:25,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69034 conditions, 25456 events. 18280/25456 cut-off events. For 20908/20908 co-relation queries the response was YES. Maximal size of possible extension queue 993. Compared 158914 event pairs, 8075 based on Foata normal form. 3/24544 useless extension candidates. Maximal degree in co-relation 69017. Up to 24317 conditions per place. [2024-06-27 18:21:25,494 INFO L140 encePairwiseOnDemand]: 47/58 looper letters, 77 selfloop transitions, 12 changer transitions 0/103 dead transitions. [2024-06-27 18:21:25,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 103 transitions, 569 flow [2024-06-27 18:21:25,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:21:25,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:21:25,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 168 transitions. [2024-06-27 18:21:25,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5793103448275863 [2024-06-27 18:21:25,495 INFO L175 Difference]: Start difference. First operand has 72 places, 71 transitions, 297 flow. Second operand 5 states and 168 transitions. [2024-06-27 18:21:25,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 103 transitions, 569 flow [2024-06-27 18:21:25,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 103 transitions, 520 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-06-27 18:21:25,505 INFO L231 Difference]: Finished difference. Result has 74 places, 76 transitions, 324 flow [2024-06-27 18:21:25,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=324, PETRI_PLACES=74, PETRI_TRANSITIONS=76} [2024-06-27 18:21:25,507 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 8 predicate places. [2024-06-27 18:21:25,507 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 76 transitions, 324 flow [2024-06-27 18:21:25,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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 18:21:25,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:21:25,507 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:21:25,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 18:21:25,508 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:21:25,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:21:25,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1894889485, now seen corresponding path program 1 times [2024-06-27 18:21:25,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:21:25,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254460461] [2024-06-27 18:21:25,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:21:25,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:21:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:21:26,546 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 18:21:26,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:21:26,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254460461] [2024-06-27 18:21:26,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254460461] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:21:26,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:21:26,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:21:26,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183492002] [2024-06-27 18:21:26,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:21:26,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:21:26,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:21:26,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:21:26,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:21:26,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58 [2024-06-27 18:21:26,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 76 transitions, 324 flow. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:21:26,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:21:26,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58 [2024-06-27 18:21:26,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:21:29,624 INFO L124 PetriNetUnfolderBase]: 20909/28180 cut-off events. [2024-06-27 18:21:29,625 INFO L125 PetriNetUnfolderBase]: For 36603/36625 co-relation queries the response was YES. [2024-06-27 18:21:29,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83734 conditions, 28180 events. 20909/28180 cut-off events. For 36603/36625 co-relation queries the response was YES. Maximal size of possible extension queue 1081. Compared 168518 event pairs, 8924 based on Foata normal form. 5/27362 useless extension candidates. Maximal degree in co-relation 83715. Up to 27675 conditions per place. [2024-06-27 18:21:29,758 INFO L140 encePairwiseOnDemand]: 46/58 looper letters, 92 selfloop transitions, 26 changer transitions 0/131 dead transitions. [2024-06-27 18:21:29,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 131 transitions, 766 flow [2024-06-27 18:21:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:21:29,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:21:29,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2024-06-27 18:21:29,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5919540229885057 [2024-06-27 18:21:29,760 INFO L175 Difference]: Start difference. First operand has 74 places, 76 transitions, 324 flow. Second operand 6 states and 206 transitions. [2024-06-27 18:21:29,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 131 transitions, 766 flow [2024-06-27 18:21:29,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 131 transitions, 728 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-06-27 18:21:29,766 INFO L231 Difference]: Finished difference. Result has 77 places, 86 transitions, 436 flow [2024-06-27 18:21:29,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=436, PETRI_PLACES=77, PETRI_TRANSITIONS=86} [2024-06-27 18:21:29,767 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 11 predicate places. [2024-06-27 18:21:29,767 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 86 transitions, 436 flow [2024-06-27 18:21:29,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:21:29,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:21:29,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:21:29,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 18:21:29,768 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:21:29,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:21:29,768 INFO L85 PathProgramCache]: Analyzing trace with hash 2001079859, now seen corresponding path program 2 times [2024-06-27 18:21:29,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:21:29,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033161194] [2024-06-27 18:21:29,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:21:29,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:21:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:21:30,481 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 18:21:30,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:21:30,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033161194] [2024-06-27 18:21:30,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033161194] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:21:30,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:21:30,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:21:30,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567446330] [2024-06-27 18:21:30,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:21:30,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:21:30,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:21:30,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:21:30,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:21:30,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58 [2024-06-27 18:21:30,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 86 transitions, 436 flow. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:21:30,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:21:30,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58 [2024-06-27 18:21:30,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:21:33,265 INFO L124 PetriNetUnfolderBase]: 20899/28192 cut-off events. [2024-06-27 18:21:33,265 INFO L125 PetriNetUnfolderBase]: For 52438/52489 co-relation queries the response was YES. [2024-06-27 18:21:33,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90513 conditions, 28192 events. 20899/28192 cut-off events. For 52438/52489 co-relation queries the response was YES. Maximal size of possible extension queue 1081. Compared 168610 event pairs, 8927 based on Foata normal form. 35/27406 useless extension candidates. Maximal degree in co-relation 90493. Up to 27665 conditions per place. [2024-06-27 18:21:33,445 INFO L140 encePairwiseOnDemand]: 46/58 looper letters, 86 selfloop transitions, 26 changer transitions 0/125 dead transitions. [2024-06-27 18:21:33,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 125 transitions, 752 flow [2024-06-27 18:21:33,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:21:33,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:21:33,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2024-06-27 18:21:33,446 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5747126436781609 [2024-06-27 18:21:33,447 INFO L175 Difference]: Start difference. First operand has 77 places, 86 transitions, 436 flow. Second operand 6 states and 200 transitions. [2024-06-27 18:21:33,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 125 transitions, 752 flow [2024-06-27 18:21:33,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 125 transitions, 690 flow, removed 25 selfloop flow, removed 2 redundant places. [2024-06-27 18:21:33,483 INFO L231 Difference]: Finished difference. Result has 81 places, 86 transitions, 438 flow [2024-06-27 18:21:33,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=438, PETRI_PLACES=81, PETRI_TRANSITIONS=86} [2024-06-27 18:21:33,485 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 15 predicate places. [2024-06-27 18:21:33,486 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 86 transitions, 438 flow [2024-06-27 18:21:33,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:21:33,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:21:33,486 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:21:33,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 18:21:33,486 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:21:33,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:21:33,487 INFO L85 PathProgramCache]: Analyzing trace with hash 785859153, now seen corresponding path program 1 times [2024-06-27 18:21:33,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:21:33,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549692340] [2024-06-27 18:21:33,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:21:33,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:21:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:21:34,505 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 18:21:34,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:21:34,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549692340] [2024-06-27 18:21:34,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549692340] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:21:34,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:21:34,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 18:21:34,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093389896] [2024-06-27 18:21:34,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:21:34,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 18:21:34,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:21:34,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 18:21:34,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-27 18:21:34,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58 [2024-06-27 18:21:34,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 86 transitions, 438 flow. Second operand has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 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 18:21:34,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:21:34,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58 [2024-06-27 18:21:34,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:21:37,858 INFO L124 PetriNetUnfolderBase]: 21098/28494 cut-off events. [2024-06-27 18:21:37,859 INFO L125 PetriNetUnfolderBase]: For 55411/55459 co-relation queries the response was YES. [2024-06-27 18:21:37,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91224 conditions, 28494 events. 21098/28494 cut-off events. For 55411/55459 co-relation queries the response was YES. Maximal size of possible extension queue 1082. Compared 170439 event pairs, 8912 based on Foata normal form. 7/27651 useless extension candidates. Maximal degree in co-relation 91202. Up to 27885 conditions per place. [2024-06-27 18:21:38,020 INFO L140 encePairwiseOnDemand]: 41/58 looper letters, 121 selfloop transitions, 40 changer transitions 0/174 dead transitions. [2024-06-27 18:21:38,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 174 transitions, 1060 flow [2024-06-27 18:21:38,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 18:21:38,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 18:21:38,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 273 transitions. [2024-06-27 18:21:38,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5883620689655172 [2024-06-27 18:21:38,022 INFO L175 Difference]: Start difference. First operand has 81 places, 86 transitions, 438 flow. Second operand 8 states and 273 transitions. [2024-06-27 18:21:38,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 174 transitions, 1060 flow [2024-06-27 18:21:38,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 174 transitions, 968 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-06-27 18:21:38,046 INFO L231 Difference]: Finished difference. Result has 85 places, 110 transitions, 630 flow [2024-06-27 18:21:38,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=630, PETRI_PLACES=85, PETRI_TRANSITIONS=110} [2024-06-27 18:21:38,046 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 19 predicate places. [2024-06-27 18:21:38,047 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 110 transitions, 630 flow [2024-06-27 18:21:38,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 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 18:21:38,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:21:38,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:21:38,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 18:21:38,047 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:21:38,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:21:38,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1387964775, now seen corresponding path program 2 times [2024-06-27 18:21:38,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:21:38,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491006652] [2024-06-27 18:21:38,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:21:38,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:21:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:21:39,124 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 18:21:39,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:21:39,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491006652] [2024-06-27 18:21:39,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491006652] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:21:39,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:21:39,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 18:21:39,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892636247] [2024-06-27 18:21:39,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:21:39,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 18:21:39,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:21:39,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 18:21:39,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-27 18:21:39,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58 [2024-06-27 18:21:39,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 110 transitions, 630 flow. Second operand has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 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 18:21:39,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:21:39,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58 [2024-06-27 18:21:39,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:21:42,785 INFO L124 PetriNetUnfolderBase]: 21147/28516 cut-off events. [2024-06-27 18:21:42,786 INFO L125 PetriNetUnfolderBase]: For 77373/77457 co-relation queries the response was YES. [2024-06-27 18:21:42,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99341 conditions, 28516 events. 21147/28516 cut-off events. For 77373/77457 co-relation queries the response was YES. Maximal size of possible extension queue 1076. Compared 168966 event pairs, 8857 based on Foata normal form. 11/27651 useless extension candidates. Maximal degree in co-relation 99317. Up to 27909 conditions per place. [2024-06-27 18:21:42,993 INFO L140 encePairwiseOnDemand]: 45/58 looper letters, 119 selfloop transitions, 42 changer transitions 0/174 dead transitions. [2024-06-27 18:21:42,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 174 transitions, 1190 flow [2024-06-27 18:21:42,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 18:21:42,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 18:21:42,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 238 transitions. [2024-06-27 18:21:42,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5862068965517241 [2024-06-27 18:21:42,995 INFO L175 Difference]: Start difference. First operand has 85 places, 110 transitions, 630 flow. Second operand 7 states and 238 transitions. [2024-06-27 18:21:42,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 174 transitions, 1190 flow [2024-06-27 18:21:43,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 174 transitions, 1114 flow, removed 18 selfloop flow, removed 3 redundant places. [2024-06-27 18:21:43,033 INFO L231 Difference]: Finished difference. Result has 89 places, 115 transitions, 723 flow [2024-06-27 18:21:43,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=723, PETRI_PLACES=89, PETRI_TRANSITIONS=115} [2024-06-27 18:21:43,033 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 23 predicate places. [2024-06-27 18:21:43,033 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 115 transitions, 723 flow [2024-06-27 18:21:43,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 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 18:21:43,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:21:43,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:21:43,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 18:21:43,034 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:21:43,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:21:43,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1479607919, now seen corresponding path program 3 times [2024-06-27 18:21:43,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:21:43,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696153] [2024-06-27 18:21:43,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:21:43,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:21:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:21:44,147 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 18:21:44,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:21:44,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696153] [2024-06-27 18:21:44,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696153] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:21:44,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:21:44,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 18:21:44,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236402522] [2024-06-27 18:21:44,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:21:44,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 18:21:44,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:21:44,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 18:21:44,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-06-27 18:21:44,446 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58 [2024-06-27 18:21:44,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 115 transitions, 723 flow. Second operand has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 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 18:21:44,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:21:44,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58 [2024-06-27 18:21:44,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:21:47,839 INFO L124 PetriNetUnfolderBase]: 21196/28596 cut-off events. [2024-06-27 18:21:47,839 INFO L125 PetriNetUnfolderBase]: For 101076/101144 co-relation queries the response was YES. [2024-06-27 18:21:47,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106511 conditions, 28596 events. 21196/28596 cut-off events. For 101076/101144 co-relation queries the response was YES. Maximal size of possible extension queue 1078. Compared 170519 event pairs, 8559 based on Foata normal form. 31/27761 useless extension candidates. Maximal degree in co-relation 106486. Up to 27830 conditions per place. [2024-06-27 18:21:48,027 INFO L140 encePairwiseOnDemand]: 45/58 looper letters, 105 selfloop transitions, 63 changer transitions 0/181 dead transitions. [2024-06-27 18:21:48,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 181 transitions, 1397 flow [2024-06-27 18:21:48,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 18:21:48,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 18:21:48,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 242 transitions. [2024-06-27 18:21:48,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5960591133004927 [2024-06-27 18:21:48,029 INFO L175 Difference]: Start difference. First operand has 89 places, 115 transitions, 723 flow. Second operand 7 states and 242 transitions. [2024-06-27 18:21:48,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 181 transitions, 1397 flow [2024-06-27 18:21:48,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 181 transitions, 1248 flow, removed 39 selfloop flow, removed 5 redundant places. [2024-06-27 18:21:48,089 INFO L231 Difference]: Finished difference. Result has 91 places, 125 transitions, 860 flow [2024-06-27 18:21:48,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=860, PETRI_PLACES=91, PETRI_TRANSITIONS=125} [2024-06-27 18:21:48,090 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 25 predicate places. [2024-06-27 18:21:48,090 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 125 transitions, 860 flow [2024-06-27 18:21:48,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 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 18:21:48,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:21:48,090 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:21:48,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 18:21:48,091 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:21:48,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:21:48,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1903934801, now seen corresponding path program 4 times [2024-06-27 18:21:48,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:21:48,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31652617] [2024-06-27 18:21:48,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:21:48,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:21:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:21:49,120 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 18:21:49,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:21:49,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31652617] [2024-06-27 18:21:49,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31652617] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:21:49,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:21:49,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 18:21:49,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835824256] [2024-06-27 18:21:49,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:21:49,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 18:21:49,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:21:49,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 18:21:49,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-06-27 18:21:49,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58 [2024-06-27 18:21:49,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 125 transitions, 860 flow. Second operand has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 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 18:21:49,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:21:49,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58 [2024-06-27 18:21:49,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:21:52,439 INFO L124 PetriNetUnfolderBase]: 21186/28606 cut-off events. [2024-06-27 18:21:52,440 INFO L125 PetriNetUnfolderBase]: For 101914/101995 co-relation queries the response was YES. [2024-06-27 18:21:52,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106460 conditions, 28606 events. 21186/28606 cut-off events. For 101914/101995 co-relation queries the response was YES. Maximal size of possible extension queue 1078. Compared 170881 event pairs, 8569 based on Foata normal form. 29/27767 useless extension candidates. Maximal degree in co-relation 106434. Up to 27820 conditions per place. [2024-06-27 18:21:52,629 INFO L140 encePairwiseOnDemand]: 45/58 looper letters, 100 selfloop transitions, 63 changer transitions 0/176 dead transitions. [2024-06-27 18:21:52,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 176 transitions, 1332 flow [2024-06-27 18:21:52,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 18:21:52,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 18:21:52,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 236 transitions. [2024-06-27 18:21:52,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5812807881773399 [2024-06-27 18:21:52,631 INFO L175 Difference]: Start difference. First operand has 91 places, 125 transitions, 860 flow. Second operand 7 states and 236 transitions. [2024-06-27 18:21:52,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 176 transitions, 1332 flow [2024-06-27 18:21:52,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 176 transitions, 1224 flow, removed 38 selfloop flow, removed 3 redundant places. [2024-06-27 18:21:52,691 INFO L231 Difference]: Finished difference. Result has 95 places, 125 transitions, 890 flow [2024-06-27 18:21:52,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=890, PETRI_PLACES=95, PETRI_TRANSITIONS=125} [2024-06-27 18:21:52,692 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 29 predicate places. [2024-06-27 18:21:52,692 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 125 transitions, 890 flow [2024-06-27 18:21:52,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 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 18:21:52,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:21:52,692 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:21:52,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 18:21:52,693 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:21:52,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:21:52,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1472932565, now seen corresponding path program 1 times [2024-06-27 18:21:52,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:21:52,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327733343] [2024-06-27 18:21:52,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:21:52,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:21:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:21:53,651 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 18:21:53,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:21:53,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327733343] [2024-06-27 18:21:53,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327733343] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:21:53,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:21:53,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 18:21:53,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891079666] [2024-06-27 18:21:53,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:21:53,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 18:21:53,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:21:53,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 18:21:53,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-27 18:21:53,755 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58 [2024-06-27 18:21:53,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 125 transitions, 890 flow. Second operand has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 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 18:21:53,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:21:53,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58 [2024-06-27 18:21:53,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:21:57,152 INFO L124 PetriNetUnfolderBase]: 23716/32933 cut-off events. [2024-06-27 18:21:57,152 INFO L125 PetriNetUnfolderBase]: For 115999/116001 co-relation queries the response was YES. [2024-06-27 18:21:57,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119708 conditions, 32933 events. 23716/32933 cut-off events. For 115999/116001 co-relation queries the response was YES. Maximal size of possible extension queue 1132. Compared 205655 event pairs, 9523 based on Foata normal form. 6/31728 useless extension candidates. Maximal degree in co-relation 119680. Up to 31323 conditions per place. [2024-06-27 18:21:57,417 INFO L140 encePairwiseOnDemand]: 46/58 looper letters, 152 selfloop transitions, 21 changer transitions 0/186 dead transitions. [2024-06-27 18:21:57,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 186 transitions, 1473 flow [2024-06-27 18:21:57,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 18:21:57,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 18:21:57,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2024-06-27 18:21:57,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-06-27 18:21:57,419 INFO L175 Difference]: Start difference. First operand has 95 places, 125 transitions, 890 flow. Second operand 7 states and 232 transitions. [2024-06-27 18:21:57,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 186 transitions, 1473 flow [2024-06-27 18:21:57,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 186 transitions, 1294 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-06-27 18:21:57,642 INFO L231 Difference]: Finished difference. Result has 97 places, 134 transitions, 869 flow [2024-06-27 18:21:57,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=869, PETRI_PLACES=97, PETRI_TRANSITIONS=134} [2024-06-27 18:21:57,643 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 31 predicate places. [2024-06-27 18:21:57,643 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 134 transitions, 869 flow [2024-06-27 18:21:57,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 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 18:21:57,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:21:57,643 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:21:57,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-27 18:21:57,644 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:21:57,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:21:57,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1895448241, now seen corresponding path program 1 times [2024-06-27 18:21:57,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:21:57,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876324523] [2024-06-27 18:21:57,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:21:57,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:21:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:21:58,202 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 18:21:58,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:21:58,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876324523] [2024-06-27 18:21:58,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876324523] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:21:58,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:21:58,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:21:58,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969231175] [2024-06-27 18:21:58,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:21:58,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:21:58,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:21:58,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:21:58,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:21:58,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 58 [2024-06-27 18:21:58,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 134 transitions, 869 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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 18:21:58,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:21:58,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 58 [2024-06-27 18:21:58,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand