./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.oepc.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/protection/mix018_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.oepc.i ./goblint.2024-06-19_11-23-25.files/protection/mix018_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 18:21:45,368 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 18:21:45,455 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 18:21:45,480 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 18:21:45,481 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 18:21:45,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 18:21:45,506 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 18:21:45,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 18:21:45,507 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 18:21:45,508 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 18:21:45,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 18:21:45,509 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 18:21:45,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 18:21:45,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 18:21:45,512 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 18:21:45,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 18:21:45,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 18:21:45,516 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 18:21:45,516 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 18:21:45,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 18:21:45,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 18:21:45,517 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 18:21:45,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 18:21:45,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 18:21:45,518 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 18:21:45,518 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 18:21:45,519 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 18:21:45,519 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 18:21:45,519 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 18:21:45,519 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 18:21:45,520 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 18:21:45,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 18:21:45,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:21:45,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 18:21:45,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 18:21:45,522 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 18:21:45,522 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 18:21:45,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 18:21:45,523 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 18:21:45,523 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 18:21:45,523 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 18:21:45,523 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 18:21:45,523 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 18:21:45,524 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 18:21:45,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 18:21:45,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 18:21:45,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 18:21:45,806 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 18:21:45,806 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 18:21:45,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.oepc.i [2024-06-27 18:21:46,981 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 18:21:47,296 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 18:21:47,298 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.oepc.i [2024-06-27 18:21:47,312 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/233d58967/b0ceeb4ca37b4f8f9ead0f628b954fe3/FLAG7ff1bbebe [2024-06-27 18:21:47,323 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/233d58967/b0ceeb4ca37b4f8f9ead0f628b954fe3 [2024-06-27 18:21:47,333 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 18:21:47,333 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 18:21:47,334 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/mix018_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml [2024-06-27 18:21:47,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 18:21:47,571 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 18:21:47,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 18:21:47,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 18:21:47,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 18:21:47,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:21:47" (1/2) ... [2024-06-27 18:21:47,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a2ff61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:47, skipping insertion in model container [2024-06-27 18:21:47,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:21:47" (1/2) ... [2024-06-27 18:21:47,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@24eaa7e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:21:47, skipping insertion in model container [2024-06-27 18:21:47,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:21:47" (2/2) ... [2024-06-27 18:21:47,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a2ff61 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:47, skipping insertion in model container [2024-06-27 18:21:47,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:21:47" (2/2) ... [2024-06-27 18:21:47,582 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 18:21:47,691 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 18:21:47,693 INFO L97 edCorrectnessWitness]: Location invariant before [L869-L869] ((((((((((((((((((((((! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1)) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0) [2024-06-27 18:21:47,693 INFO L97 edCorrectnessWitness]: Location invariant before [L873-L873] ((((((((((((((((((((((! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1)) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0) [2024-06-27 18:21:47,693 INFO L97 edCorrectnessWitness]: Location invariant before [L874-L874] ((((((((((((((((((((((! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1)) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0) [2024-06-27 18:21:47,693 INFO L97 edCorrectnessWitness]: Location invariant before [L871-L871] ((((((((((((((((((((((! multithreaded || (a$w_buff1 == 0 || a$w_buff1 == 1)) && (! multithreaded || (a$mem_tmp == 0 || a$mem_tmp == 1))) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (a$w_buff0 == 0 || a$w_buff0 == 1))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || a$read_delayed_var == 0)) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || a$r_buff1_thd4 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || a$r_buff0_thd4 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || a$flush_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0) [2024-06-27 18:21:47,693 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 18:21:47,694 INFO L106 edCorrectnessWitness]: ghost_update [L867-L867] multithreaded = 1; [2024-06-27 18:21:47,745 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 18:21:47,943 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/mix018_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-06-27 18:21:48,158 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:21:48,170 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 18:21:48,215 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/mix018_power.oepc_pso.oepc_rmo.oepc.i[969,982] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 18:21:48,316 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:21:48,368 INFO L206 MainTranslator]: Completed translation [2024-06-27 18:21:48,369 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:48 WrapperNode [2024-06-27 18:21:48,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 18:21:48,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 18:21:48,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 18:21:48,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 18:21:48,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:48" (1/1) ... [2024-06-27 18:21:48,410 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:48" (1/1) ... [2024-06-27 18:21:48,461 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 135 [2024-06-27 18:21:48,461 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 18:21:48,462 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 18:21:48,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 18:21:48,462 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 18:21:48,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:48" (1/1) ... [2024-06-27 18:21:48,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:48" (1/1) ... [2024-06-27 18:21:48,479 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:48" (1/1) ... [2024-06-27 18:21:48,509 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 18:21:48,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:48" (1/1) ... [2024-06-27 18:21:48,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:48" (1/1) ... [2024-06-27 18:21:48,520 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:48" (1/1) ... [2024-06-27 18:21:48,531 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:48" (1/1) ... [2024-06-27 18:21:48,534 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:48" (1/1) ... [2024-06-27 18:21:48,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:48" (1/1) ... [2024-06-27 18:21:48,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 18:21:48,540 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 18:21:48,540 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 18:21:48,540 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 18:21:48,541 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:48" (1/1) ... [2024-06-27 18:21:48,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:21:48,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 18:21:48,567 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 18:21:48,575 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 18:21:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 18:21:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 18:21:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 18:21:48,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 18:21:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 18:21:48,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 18:21:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 18:21:48,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 18:21:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 18:21:48,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 18:21:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 18:21:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 18:21:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 18:21:48,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 18:21:48,617 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 18:21:48,733 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 18:21:48,735 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 18:21:49,146 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 18:21:49,147 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 18:21:49,335 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 18:21:49,336 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 18:21:49,336 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:21:49 BoogieIcfgContainer [2024-06-27 18:21:49,336 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 18:21:49,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 18:21:49,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 18:21:49,343 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 18:21:49,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 06:21:47" (1/4) ... [2024-06-27 18:21:49,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a71c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:21:49, skipping insertion in model container [2024-06-27 18:21:49,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:21:47" (2/4) ... [2024-06-27 18:21:49,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a71c51 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:21:49, skipping insertion in model container [2024-06-27 18:21:49,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:21:48" (3/4) ... [2024-06-27 18:21:49,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a71c51 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:21:49, skipping insertion in model container [2024-06-27 18:21:49,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:21:49" (4/4) ... [2024-06-27 18:21:49,348 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018_power.oepc_pso.oepc_rmo.oepc.i [2024-06-27 18:21:49,365 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 18:21:49,366 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-27 18:21:49,366 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 18:21:49,428 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 18:21:49,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 58 transitions, 132 flow [2024-06-27 18:21:49,522 INFO L124 PetriNetUnfolderBase]: 1/54 cut-off events. [2024-06-27 18:21:49,523 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:21:49,526 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 4. Compared 90 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 18:21:49,527 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 58 transitions, 132 flow [2024-06-27 18:21:49,531 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 54 transitions, 120 flow [2024-06-27 18:21:49,545 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 18:21:49,586 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;@30dd791, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 18:21:49,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-27 18:21:49,592 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 18:21:49,593 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 18:21:49,593 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:21:49,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:21:49,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 18:21:49,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:21:49,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:21:49,630 INFO L85 PathProgramCache]: Analyzing trace with hash 380408206, now seen corresponding path program 1 times [2024-06-27 18:21:49,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:21:49,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773212278] [2024-06-27 18:21:49,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:21:49,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:21:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:21:50,723 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 18:21:50,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:21:50,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773212278] [2024-06-27 18:21:50,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773212278] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:21:50,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:21:50,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 18:21:50,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295445866] [2024-06-27 18:21:50,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:21:50,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:21:50,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:21:50,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:21:50,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:21:50,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 58 [2024-06-27 18:21:50,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 54 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 18:21:50,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:21:50,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 58 [2024-06-27 18:21:50,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:21:55,101 INFO L124 PetriNetUnfolderBase]: 25098/34488 cut-off events. [2024-06-27 18:21:55,101 INFO L125 PetriNetUnfolderBase]: For 215/215 co-relation queries the response was YES. [2024-06-27 18:21:55,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68243 conditions, 34488 events. 25098/34488 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 1199. Compared 214427 event pairs, 16647 based on Foata normal form. 1051/34146 useless extension candidates. Maximal degree in co-relation 68230. Up to 33298 conditions per place. [2024-06-27 18:21:55,401 INFO L140 encePairwiseOnDemand]: 47/58 looper letters, 52 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2024-06-27 18:21:55,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 72 transitions, 281 flow [2024-06-27 18:21:55,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:21:55,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:21:55,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-06-27 18:21:55,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6781609195402298 [2024-06-27 18:21:55,414 INFO L175 Difference]: Start difference. First operand has 66 places, 54 transitions, 120 flow. Second operand 3 states and 118 transitions. [2024-06-27 18:21:55,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 72 transitions, 281 flow [2024-06-27 18:21:55,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 72 transitions, 274 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 18:21:55,421 INFO L231 Difference]: Finished difference. Result has 65 places, 58 transitions, 160 flow [2024-06-27 18:21:55,423 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 18:21:55,426 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -1 predicate places. [2024-06-27 18:21:55,426 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 58 transitions, 160 flow [2024-06-27 18:21:55,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 18:21:55,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:21:55,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 18:21:55,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 18:21:55,427 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:21:55,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:21:55,428 INFO L85 PathProgramCache]: Analyzing trace with hash 380409211, now seen corresponding path program 1 times [2024-06-27 18:21:55,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:21:55,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988803305] [2024-06-27 18:21:55,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:21:55,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:21:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:21:55,482 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 18:21:55,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:21:55,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988803305] [2024-06-27 18:21:55,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988803305] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:21:55,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:21:55,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 18:21:55,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133473908] [2024-06-27 18:21:55,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:21:55,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:21:55,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:21:55,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:21:55,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:21:55,486 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 58 [2024-06-27 18:21:55,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 58 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:21:55,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:21:55,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 58 [2024-06-27 18:21:55,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:21:56,867 INFO L124 PetriNetUnfolderBase]: 5320/9065 cut-off events. [2024-06-27 18:21:56,869 INFO L125 PetriNetUnfolderBase]: For 688/688 co-relation queries the response was YES. [2024-06-27 18:21:56,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17478 conditions, 9065 events. 5320/9065 cut-off events. For 688/688 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 70271 event pairs, 3631 based on Foata normal form. 0/8314 useless extension candidates. Maximal degree in co-relation 17466. Up to 6212 conditions per place. [2024-06-27 18:21:56,979 INFO L140 encePairwiseOnDemand]: 55/58 looper letters, 45 selfloop transitions, 3 changer transitions 0/77 dead transitions. [2024-06-27 18:21:56,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 77 transitions, 295 flow [2024-06-27 18:21:56,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:21:56,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:21:56,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 138 transitions. [2024-06-27 18:21:56,986 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7931034482758621 [2024-06-27 18:21:56,986 INFO L175 Difference]: Start difference. First operand has 65 places, 58 transitions, 160 flow. Second operand 3 states and 138 transitions. [2024-06-27 18:21:56,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 77 transitions, 295 flow [2024-06-27 18:21:56,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 77 transitions, 290 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 18:21:56,990 INFO L231 Difference]: Finished difference. Result has 65 places, 56 transitions, 152 flow [2024-06-27 18:21:56,990 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=65, PETRI_TRANSITIONS=56} [2024-06-27 18:21:56,992 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -1 predicate places. [2024-06-27 18:21:56,994 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 56 transitions, 152 flow [2024-06-27 18:21:56,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:21:56,995 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:21:56,995 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:21:56,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 18:21:57,000 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:21:57,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:21:57,001 INFO L85 PathProgramCache]: Analyzing trace with hash 500090124, now seen corresponding path program 1 times [2024-06-27 18:21:57,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:21:57,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116382862] [2024-06-27 18:21:57,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:21:57,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:21:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:21:57,764 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 18:21:57,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:21:57,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116382862] [2024-06-27 18:21:57,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116382862] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:21:57,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:21:57,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 18:21:57,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042109055] [2024-06-27 18:21:57,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:21:57,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 18:21:57,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:21:57,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 18:21:57,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 18:21:57,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 58 [2024-06-27 18:21:57,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 56 transitions, 152 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 18:21:57,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:21:57,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 58 [2024-06-27 18:21:57,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:22:01,297 INFO L124 PetriNetUnfolderBase]: 21348/31435 cut-off events. [2024-06-27 18:22:01,298 INFO L125 PetriNetUnfolderBase]: For 7118/7118 co-relation queries the response was YES. [2024-06-27 18:22:01,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67452 conditions, 31435 events. 21348/31435 cut-off events. For 7118/7118 co-relation queries the response was YES. Maximal size of possible extension queue 1134. Compared 214143 event pairs, 15551 based on Foata normal form. 4/30533 useless extension candidates. Maximal degree in co-relation 67439. Up to 28350 conditions per place. [2024-06-27 18:22:01,528 INFO L140 encePairwiseOnDemand]: 47/58 looper letters, 64 selfloop transitions, 10 changer transitions 2/90 dead transitions. [2024-06-27 18:22:01,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 90 transitions, 400 flow [2024-06-27 18:22:01,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 18:22:01,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 18:22:01,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 148 transitions. [2024-06-27 18:22:01,532 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6379310344827587 [2024-06-27 18:22:01,532 INFO L175 Difference]: Start difference. First operand has 65 places, 56 transitions, 152 flow. Second operand 4 states and 148 transitions. [2024-06-27 18:22:01,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 90 transitions, 400 flow [2024-06-27 18:22:01,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 90 transitions, 392 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 18:22:01,538 INFO L231 Difference]: Finished difference. Result has 68 places, 64 transitions, 233 flow [2024-06-27 18:22:01,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=68, PETRI_TRANSITIONS=64} [2024-06-27 18:22:01,540 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 2 predicate places. [2024-06-27 18:22:01,540 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 64 transitions, 233 flow [2024-06-27 18:22:01,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 18:22:01,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:22:01,540 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:22:01,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 18:22:01,541 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:22:01,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:22:01,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1677074489, now seen corresponding path program 1 times [2024-06-27 18:22:01,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:22:01,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153165634] [2024-06-27 18:22:01,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:22:01,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:22:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:22:02,451 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 18:22:02,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:22:02,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153165634] [2024-06-27 18:22:02,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153165634] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:22:02,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:22:02,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 18:22:02,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125010792] [2024-06-27 18:22:02,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:22:02,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 18:22:02,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:22:02,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 18:22:02,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 18:22:02,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 58 [2024-06-27 18:22:02,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 64 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:22:02,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:22:02,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 58 [2024-06-27 18:22:02,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:22:05,042 INFO L124 PetriNetUnfolderBase]: 18581/27841 cut-off events. [2024-06-27 18:22:05,043 INFO L125 PetriNetUnfolderBase]: For 13155/13155 co-relation queries the response was YES. [2024-06-27 18:22:05,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65002 conditions, 27841 events. 18581/27841 cut-off events. For 13155/13155 co-relation queries the response was YES. Maximal size of possible extension queue 1051. Compared 192114 event pairs, 10583 based on Foata normal form. 10/27071 useless extension candidates. Maximal degree in co-relation 64987. Up to 24518 conditions per place. [2024-06-27 18:22:05,401 INFO L140 encePairwiseOnDemand]: 44/58 looper letters, 87 selfloop transitions, 23 changer transitions 0/124 dead transitions. [2024-06-27 18:22:05,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 124 transitions, 653 flow [2024-06-27 18:22:05,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:22:05,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:22:05,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 193 transitions. [2024-06-27 18:22:05,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6655172413793103 [2024-06-27 18:22:05,403 INFO L175 Difference]: Start difference. First operand has 68 places, 64 transitions, 233 flow. Second operand 5 states and 193 transitions. [2024-06-27 18:22:05,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 124 transitions, 653 flow [2024-06-27 18:22:05,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 124 transitions, 638 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-06-27 18:22:05,411 INFO L231 Difference]: Finished difference. Result has 73 places, 79 transitions, 382 flow [2024-06-27 18:22:05,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=382, PETRI_PLACES=73, PETRI_TRANSITIONS=79} [2024-06-27 18:22:05,413 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 7 predicate places. [2024-06-27 18:22:05,413 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 79 transitions, 382 flow [2024-06-27 18:22:05,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:22:05,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:22:05,414 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:22:05,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 18:22:05,414 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:22:05,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:22:05,415 INFO L85 PathProgramCache]: Analyzing trace with hash -449700725, now seen corresponding path program 1 times [2024-06-27 18:22:05,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:22:05,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477166217] [2024-06-27 18:22:05,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:22:05,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:22:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:22:06,783 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 18:22:06,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:22:06,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477166217] [2024-06-27 18:22:06,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477166217] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:22:06,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:22:06,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:22:06,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580966529] [2024-06-27 18:22:06,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:22:06,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:22:06,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:22:06,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:22:06,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:22:06,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 58 [2024-06-27 18:22:06,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 79 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:22:06,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:22:06,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 58 [2024-06-27 18:22:06,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:22:09,585 INFO L124 PetriNetUnfolderBase]: 18665/26257 cut-off events. [2024-06-27 18:22:09,586 INFO L125 PetriNetUnfolderBase]: For 31698/31701 co-relation queries the response was YES. [2024-06-27 18:22:09,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74915 conditions, 26257 events. 18665/26257 cut-off events. For 31698/31701 co-relation queries the response was YES. Maximal size of possible extension queue 981. Compared 164499 event pairs, 8160 based on Foata normal form. 10/26122 useless extension candidates. Maximal degree in co-relation 74896. Up to 24412 conditions per place. [2024-06-27 18:22:09,790 INFO L140 encePairwiseOnDemand]: 45/58 looper letters, 108 selfloop transitions, 42 changer transitions 0/164 dead transitions. [2024-06-27 18:22:09,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 164 transitions, 1040 flow [2024-06-27 18:22:09,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:22:09,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:22:09,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 235 transitions. [2024-06-27 18:22:09,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6752873563218391 [2024-06-27 18:22:09,797 INFO L175 Difference]: Start difference. First operand has 73 places, 79 transitions, 382 flow. Second operand 6 states and 235 transitions. [2024-06-27 18:22:09,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 164 transitions, 1040 flow [2024-06-27 18:22:09,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 164 transitions, 1028 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-27 18:22:09,821 INFO L231 Difference]: Finished difference. Result has 82 places, 98 transitions, 651 flow [2024-06-27 18:22:09,821 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=651, PETRI_PLACES=82, PETRI_TRANSITIONS=98} [2024-06-27 18:22:09,823 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 16 predicate places. [2024-06-27 18:22:09,824 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 98 transitions, 651 flow [2024-06-27 18:22:09,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:22:09,824 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:22:09,824 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:22:09,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 18:22:09,825 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:22:09,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:22:09,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1055819674, now seen corresponding path program 1 times [2024-06-27 18:22:09,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:22:09,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124383031] [2024-06-27 18:22:09,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:22:09,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:22:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:22:11,262 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 18:22:11,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:22:11,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124383031] [2024-06-27 18:22:11,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124383031] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:22:11,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:22:11,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:22:11,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695259206] [2024-06-27 18:22:11,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:22:11,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:22:11,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:22:11,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:22:11,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:22:11,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 58 [2024-06-27 18:22:11,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 98 transitions, 651 flow. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:22:11,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:22:11,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 58 [2024-06-27 18:22:11,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:22:14,449 INFO L124 PetriNetUnfolderBase]: 18951/26731 cut-off events. [2024-06-27 18:22:14,449 INFO L125 PetriNetUnfolderBase]: For 62604/62611 co-relation queries the response was YES. [2024-06-27 18:22:14,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88161 conditions, 26731 events. 18951/26731 cut-off events. For 62604/62611 co-relation queries the response was YES. Maximal size of possible extension queue 992. Compared 168240 event pairs, 6720 based on Foata normal form. 40/26626 useless extension candidates. Maximal degree in co-relation 88136. Up to 24452 conditions per place. [2024-06-27 18:22:14,699 INFO L140 encePairwiseOnDemand]: 45/58 looper letters, 122 selfloop transitions, 45 changer transitions 0/181 dead transitions. [2024-06-27 18:22:14,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 181 transitions, 1315 flow [2024-06-27 18:22:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 18:22:14,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 18:22:14,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 270 transitions. [2024-06-27 18:22:14,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6650246305418719 [2024-06-27 18:22:14,703 INFO L175 Difference]: Start difference. First operand has 82 places, 98 transitions, 651 flow. Second operand 7 states and 270 transitions. [2024-06-27 18:22:14,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 181 transitions, 1315 flow [2024-06-27 18:22:14,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 181 transitions, 1279 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-06-27 18:22:14,744 INFO L231 Difference]: Finished difference. Result has 88 places, 100 transitions, 746 flow [2024-06-27 18:22:14,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=746, PETRI_PLACES=88, PETRI_TRANSITIONS=100} [2024-06-27 18:22:14,745 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 22 predicate places. [2024-06-27 18:22:14,745 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 100 transitions, 746 flow [2024-06-27 18:22:14,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:22:14,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:22:14,746 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:22:14,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 18:22:14,746 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:22:14,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:22:14,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1347530217, now seen corresponding path program 1 times [2024-06-27 18:22:14,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:22:14,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971753313] [2024-06-27 18:22:14,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:22:14,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:22:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:22:15,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:22:15,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:22:15,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971753313] [2024-06-27 18:22:15,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971753313] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:22:15,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:22:15,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:22:15,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631307020] [2024-06-27 18:22:15,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:22:15,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:22:15,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:22:15,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:22:15,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:22:15,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 58 [2024-06-27 18:22:15,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 100 transitions, 746 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:22:15,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:22:15,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 58 [2024-06-27 18:22:15,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:22:19,483 INFO L124 PetriNetUnfolderBase]: 21930/33051 cut-off events. [2024-06-27 18:22:19,483 INFO L125 PetriNetUnfolderBase]: For 77019/77019 co-relation queries the response was YES. [2024-06-27 18:22:19,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102074 conditions, 33051 events. 21930/33051 cut-off events. For 77019/77019 co-relation queries the response was YES. Maximal size of possible extension queue 1170. Compared 233513 event pairs, 10917 based on Foata normal form. 6/32285 useless extension candidates. Maximal degree in co-relation 102045. Up to 29136 conditions per place. [2024-06-27 18:22:19,707 INFO L140 encePairwiseOnDemand]: 48/58 looper letters, 96 selfloop transitions, 17 changer transitions 0/125 dead transitions. [2024-06-27 18:22:19,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 125 transitions, 1038 flow [2024-06-27 18:22:19,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:22:19,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:22:19,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 155 transitions. [2024-06-27 18:22:19,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2024-06-27 18:22:19,708 INFO L175 Difference]: Start difference. First operand has 88 places, 100 transitions, 746 flow. Second operand 5 states and 155 transitions. [2024-06-27 18:22:19,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 125 transitions, 1038 flow [2024-06-27 18:22:19,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 125 transitions, 929 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-06-27 18:22:19,757 INFO L231 Difference]: Finished difference. Result has 88 places, 100 transitions, 686 flow [2024-06-27 18:22:19,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=686, PETRI_PLACES=88, PETRI_TRANSITIONS=100} [2024-06-27 18:22:19,758 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 22 predicate places. [2024-06-27 18:22:19,758 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 100 transitions, 686 flow [2024-06-27 18:22:19,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:22:19,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:22:19,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:22:19,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 18:22:19,759 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:22:19,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:22:19,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1209514163, now seen corresponding path program 1 times [2024-06-27 18:22:19,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:22:19,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013162343] [2024-06-27 18:22:19,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:22:19,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:22:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:22:20,720 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 18:22:20,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:22:20,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013162343] [2024-06-27 18:22:20,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013162343] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:22:20,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:22:20,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:22:20,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687647524] [2024-06-27 18:22:20,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:22:20,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:22:20,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:22:20,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:22:20,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:22:20,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 58 [2024-06-27 18:22:20,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 100 transitions, 686 flow. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:22:20,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:22:20,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 58 [2024-06-27 18:22:20,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:22:24,360 INFO L124 PetriNetUnfolderBase]: 21988/32600 cut-off events. [2024-06-27 18:22:24,361 INFO L125 PetriNetUnfolderBase]: For 80451/80451 co-relation queries the response was YES. [2024-06-27 18:22:24,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101808 conditions, 32600 events. 21988/32600 cut-off events. For 80451/80451 co-relation queries the response was YES. Maximal size of possible extension queue 1134. Compared 222492 event pairs, 9644 based on Foata normal form. 12/31841 useless extension candidates. Maximal degree in co-relation 101777. Up to 28949 conditions per place. [2024-06-27 18:22:24,580 INFO L140 encePairwiseOnDemand]: 44/58 looper letters, 107 selfloop transitions, 27 changer transitions 0/146 dead transitions. [2024-06-27 18:22:24,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 146 transitions, 1146 flow [2024-06-27 18:22:24,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:22:24,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:22:24,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 196 transitions. [2024-06-27 18:22:24,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5632183908045977 [2024-06-27 18:22:24,582 INFO L175 Difference]: Start difference. First operand has 88 places, 100 transitions, 686 flow. Second operand 6 states and 196 transitions. [2024-06-27 18:22:24,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 146 transitions, 1146 flow [2024-06-27 18:22:24,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 146 transitions, 1095 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-06-27 18:22:24,640 INFO L231 Difference]: Finished difference. Result has 90 places, 104 transitions, 748 flow [2024-06-27 18:22:24,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=748, PETRI_PLACES=90, PETRI_TRANSITIONS=104} [2024-06-27 18:22:24,641 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 24 predicate places. [2024-06-27 18:22:24,641 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 104 transitions, 748 flow [2024-06-27 18:22:24,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:22:24,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:22:24,642 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:22:24,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 18:22:24,642 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:22:24,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:22:24,642 INFO L85 PathProgramCache]: Analyzing trace with hash -932433865, now seen corresponding path program 2 times [2024-06-27 18:22:24,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:22:24,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906173335] [2024-06-27 18:22:24,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:22:24,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:22:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:22:25,636 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 18:22:25,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:22:25,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906173335] [2024-06-27 18:22:25,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906173335] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:22:25,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:22:25,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:22:25,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102418699] [2024-06-27 18:22:25,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:22:25,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:22:25,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:22:25,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:22:25,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:22:25,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 58 [2024-06-27 18:22:25,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 104 transitions, 748 flow. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:22:25,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:22:25,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 58 [2024-06-27 18:22:25,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:22:29,331 INFO L124 PetriNetUnfolderBase]: 21943/33055 cut-off events. [2024-06-27 18:22:29,332 INFO L125 PetriNetUnfolderBase]: For 88115/88115 co-relation queries the response was YES. [2024-06-27 18:22:29,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103403 conditions, 33055 events. 21943/33055 cut-off events. For 88115/88115 co-relation queries the response was YES. Maximal size of possible extension queue 1170. Compared 233349 event pairs, 10896 based on Foata normal form. 6/32289 useless extension candidates. Maximal degree in co-relation 103372. Up to 29131 conditions per place. [2024-06-27 18:22:29,569 INFO L140 encePairwiseOnDemand]: 45/58 looper letters, 109 selfloop transitions, 16 changer transitions 0/137 dead transitions. [2024-06-27 18:22:29,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 137 transitions, 1084 flow [2024-06-27 18:22:29,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:22:29,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:22:29,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 184 transitions. [2024-06-27 18:22:29,571 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5287356321839081 [2024-06-27 18:22:29,571 INFO L175 Difference]: Start difference. First operand has 90 places, 104 transitions, 748 flow. Second operand 6 states and 184 transitions. [2024-06-27 18:22:29,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 137 transitions, 1084 flow [2024-06-27 18:22:29,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 137 transitions, 1037 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-06-27 18:22:29,636 INFO L231 Difference]: Finished difference. Result has 93 places, 104 transitions, 744 flow [2024-06-27 18:22:29,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=744, PETRI_PLACES=93, PETRI_TRANSITIONS=104} [2024-06-27 18:22:29,637 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 27 predicate places. [2024-06-27 18:22:29,637 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 104 transitions, 744 flow [2024-06-27 18:22:29,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:22:29,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:22:29,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:22:29,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 18:22:29,638 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:22:29,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:22:29,638 INFO L85 PathProgramCache]: Analyzing trace with hash -98451691, now seen corresponding path program 1 times [2024-06-27 18:22:29,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:22:29,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521808102] [2024-06-27 18:22:29,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:22:29,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:22:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:22:31,165 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 18:22:31,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:22:31,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521808102] [2024-06-27 18:22:31,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521808102] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:22:31,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:22:31,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-27 18:22:31,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789059467] [2024-06-27 18:22:31,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:22:31,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 18:22:31,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:22:31,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 18:22:31,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-27 18:22:31,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 58 [2024-06-27 18:22:31,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 104 transitions, 744 flow. Second operand has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 9 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 18:22:31,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:22:31,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 58 [2024-06-27 18:22:31,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:22:35,537 INFO L124 PetriNetUnfolderBase]: 26648/39836 cut-off events. [2024-06-27 18:22:35,537 INFO L125 PetriNetUnfolderBase]: For 111216/111216 co-relation queries the response was YES. [2024-06-27 18:22:35,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123388 conditions, 39836 events. 26648/39836 cut-off events. For 111216/111216 co-relation queries the response was YES. Maximal size of possible extension queue 1377. Compared 283316 event pairs, 13250 based on Foata normal form. 6/38914 useless extension candidates. Maximal degree in co-relation 123356. Up to 35237 conditions per place. [2024-06-27 18:22:35,866 INFO L140 encePairwiseOnDemand]: 47/58 looper letters, 124 selfloop transitions, 27 changer transitions 0/162 dead transitions. [2024-06-27 18:22:35,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 162 transitions, 1269 flow [2024-06-27 18:22:35,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 18:22:35,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 18:22:35,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 211 transitions. [2024-06-27 18:22:35,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5197044334975369 [2024-06-27 18:22:35,868 INFO L175 Difference]: Start difference. First operand has 93 places, 104 transitions, 744 flow. Second operand 7 states and 211 transitions. [2024-06-27 18:22:35,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 162 transitions, 1269 flow [2024-06-27 18:22:35,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 162 transitions, 1188 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-06-27 18:22:35,953 INFO L231 Difference]: Finished difference. Result has 95 places, 114 transitions, 840 flow [2024-06-27 18:22:35,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=840, PETRI_PLACES=95, PETRI_TRANSITIONS=114} [2024-06-27 18:22:35,955 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, 29 predicate places. [2024-06-27 18:22:35,955 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 114 transitions, 840 flow [2024-06-27 18:22:35,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 9 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 18:22:35,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:22:35,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:22:35,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 18:22:35,957 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:22:35,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:22:35,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1904356383, now seen corresponding path program 1 times [2024-06-27 18:22:35,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:22:35,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689974829] [2024-06-27 18:22:35,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:22:35,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:22:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat