./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix036_pso.opt_tso.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/protection/mix036_pso.opt_tso.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix036_pso.opt_tso.opt.i ./goblint.2024-06-19_11-23-25.files/protection/mix036_pso.opt_tso.opt.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 18:31:29,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 18:31:29,823 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 18:31:29,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 18:31:29,828 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 18:31:29,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 18:31:29,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 18:31:29,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 18:31:29,854 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 18:31:29,858 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 18:31:29,858 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 18:31:29,858 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 18:31:29,859 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 18:31:29,860 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 18:31:29,860 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 18:31:29,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 18:31:29,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 18:31:29,861 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 18:31:29,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 18:31:29,861 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 18:31:29,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 18:31:29,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 18:31:29,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 18:31:29,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 18:31:29,862 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 18:31:29,862 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 18:31:29,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 18:31:29,862 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 18:31:29,863 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 18:31:29,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 18:31:29,864 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 18:31:29,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 18:31:29,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:31:29,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 18:31:29,864 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 18:31:29,864 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 18:31:29,864 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 18:31:29,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 18:31:29,865 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 18:31:29,865 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 18:31:29,865 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 18:31:29,865 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 18:31:29,865 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 18:31:29,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 18:31:30,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 18:31:30,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 18:31:30,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 18:31:30,172 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 18:31:30,172 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 18:31:30,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/mix036_pso.opt_tso.opt.yml/witness.yml [2024-06-27 18:31:30,380 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 18:31:30,380 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 18:31:30,381 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix036_pso.opt_tso.opt.i [2024-06-27 18:31:31,513 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 18:31:31,766 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 18:31:31,771 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix036_pso.opt_tso.opt.i [2024-06-27 18:31:31,796 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/735732c2a/00b50f6b4e5c4910aa98b30123233615/FLAG1845de1b8 [2024-06-27 18:31:31,811 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/735732c2a/00b50f6b4e5c4910aa98b30123233615 [2024-06-27 18:31:31,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 18:31:31,813 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 18:31:31,815 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 18:31:31,815 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 18:31:31,819 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 18:31:31,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:31:30" (1/2) ... [2024-06-27 18:31:31,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dfd0ede and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:31:31, skipping insertion in model container [2024-06-27 18:31:31,821 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:31:30" (1/2) ... [2024-06-27 18:31:31,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4c200e97 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:31:31, skipping insertion in model container [2024-06-27 18:31:31,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:31:31" (2/2) ... [2024-06-27 18:31:31,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dfd0ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:31:31, skipping insertion in model container [2024-06-27 18:31:31,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:31:31" (2/2) ... [2024-06-27 18:31:31,824 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 18:31:31,962 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 18:31:31,967 INFO L97 edCorrectnessWitness]: Location invariant before [L866-L866] ((((((((((((((((((((((((! multithreaded || z$r_buff0_thd2 == (_Bool)0) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (b == 0 || b == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1)) [2024-06-27 18:31:31,967 INFO L97 edCorrectnessWitness]: Location invariant before [L861-L861] ((((((((((((((((((((((((! multithreaded || z$r_buff0_thd2 == (_Bool)0) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (b == 0 || b == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1)) [2024-06-27 18:31:31,967 INFO L97 edCorrectnessWitness]: Location invariant before [L865-L865] ((((((((((((((((((((((((! multithreaded || z$r_buff0_thd2 == (_Bool)0) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (b == 0 || b == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1)) [2024-06-27 18:31:31,967 INFO L97 edCorrectnessWitness]: Location invariant before [L863-L863] ((((((((((((((((((((((((! multithreaded || z$r_buff0_thd2 == (_Bool)0) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || (x == 0 || x == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || (b == 0 || b == 1))) && (! multithreaded || (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1))) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1)) [2024-06-27 18:31:31,967 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 18:31:31,968 INFO L106 edCorrectnessWitness]: ghost_update [L859-L859] multithreaded = 1; [2024-06-27 18:31:32,001 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 18:31:32,117 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/mix036_pso.opt_tso.opt.i[956,969] [2024-06-27 18:31:32,230 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:31:32,238 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 18:31:32,265 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/mix036_pso.opt_tso.opt.i[956,969] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 18:31:32,327 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:31:32,357 INFO L206 MainTranslator]: Completed translation [2024-06-27 18:31:32,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:31:32 WrapperNode [2024-06-27 18:31:32,357 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 18:31:32,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 18:31:32,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 18:31:32,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 18:31:32,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:31:32" (1/1) ... [2024-06-27 18:31:32,378 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:31:32" (1/1) ... [2024-06-27 18:31:32,403 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 143 [2024-06-27 18:31:32,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 18:31:32,404 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 18:31:32,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 18:31:32,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 18:31:32,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:31:32" (1/1) ... [2024-06-27 18:31:32,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:31:32" (1/1) ... [2024-06-27 18:31:32,415 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:31:32" (1/1) ... [2024-06-27 18:31:32,429 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 18:31:32,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:31:32" (1/1) ... [2024-06-27 18:31:32,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:31:32" (1/1) ... [2024-06-27 18:31:32,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:31:32" (1/1) ... [2024-06-27 18:31:32,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:31:32" (1/1) ... [2024-06-27 18:31:32,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:31:32" (1/1) ... [2024-06-27 18:31:32,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:31:32" (1/1) ... [2024-06-27 18:31:32,458 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 18:31:32,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 18:31:32,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 18:31:32,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 18:31:32,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:31:32" (1/1) ... [2024-06-27 18:31:32,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:31:32,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 18:31:32,524 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 18:31:32,620 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 18:31:32,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 18:31:32,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 18:31:32,634 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 18:31:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 18:31:32,635 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 18:31:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 18:31:32,635 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 18:31:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 18:31:32,636 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 18:31:32,636 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 18:31:32,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 18:31:32,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 18:31:32,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 18:31:32,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 18:31:32,641 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 18:31:32,740 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 18:31:32,741 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 18:31:33,055 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 18:31:33,055 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 18:31:33,195 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 18:31:33,195 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 18:31:33,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:31:33 BoogieIcfgContainer [2024-06-27 18:31:33,196 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 18:31:33,197 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 18:31:33,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 18:31:33,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 18:31:33,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:31:30" (1/4) ... [2024-06-27 18:31:33,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b36219 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:31:33, skipping insertion in model container [2024-06-27 18:31:33,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 06:31:31" (2/4) ... [2024-06-27 18:31:33,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b36219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:31:33, skipping insertion in model container [2024-06-27 18:31:33,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:31:32" (3/4) ... [2024-06-27 18:31:33,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b36219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:31:33, skipping insertion in model container [2024-06-27 18:31:33,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:31:33" (4/4) ... [2024-06-27 18:31:33,203 INFO L112 eAbstractionObserver]: Analyzing ICFG mix036_pso.opt_tso.opt.i [2024-06-27 18:31:33,216 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 18:31:33,216 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-27 18:31:33,216 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 18:31:33,267 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 18:31:33,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 59 transitions, 134 flow [2024-06-27 18:31:33,317 INFO L124 PetriNetUnfolderBase]: 1/55 cut-off events. [2024-06-27 18:31:33,317 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:31:33,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 55 events. 1/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 97 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2024-06-27 18:31:33,320 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 59 transitions, 134 flow [2024-06-27 18:31:33,322 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 55 transitions, 122 flow [2024-06-27 18:31:33,329 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 18:31:33,334 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;@fe9db4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 18:31:33,334 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-27 18:31:33,337 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 18:31:33,337 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-27 18:31:33,337 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:31:33,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:31:33,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 18:31:33,338 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:31:33,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:31:33,342 INFO L85 PathProgramCache]: Analyzing trace with hash 360463483, now seen corresponding path program 1 times [2024-06-27 18:31:33,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:31:33,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225983101] [2024-06-27 18:31:33,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:31:33,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:31:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:31:34,289 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 18:31:34,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:31:34,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225983101] [2024-06-27 18:31:34,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225983101] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:31:34,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:31:34,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 18:31:34,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978193339] [2024-06-27 18:31:34,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:31:34,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:31:34,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:31:34,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:31:34,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:31:34,374 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2024-06-27 18:31:34,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 18:31:34,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:31:34,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2024-06-27 18:31:34,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:31:36,355 INFO L124 PetriNetUnfolderBase]: 12650/19091 cut-off events. [2024-06-27 18:31:36,355 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2024-06-27 18:31:36,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36266 conditions, 19091 events. 12650/19091 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 829. Compared 133762 event pairs, 10423 based on Foata normal form. 481/18263 useless extension candidates. Maximal degree in co-relation 36253. Up to 16952 conditions per place. [2024-06-27 18:31:36,456 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 49 selfloop transitions, 6 changer transitions 0/73 dead transitions. [2024-06-27 18:31:36,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 73 transitions, 277 flow [2024-06-27 18:31:36,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:31:36,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:31:36,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 127 transitions. [2024-06-27 18:31:36,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7175141242937854 [2024-06-27 18:31:36,467 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 122 flow. Second operand 3 states and 127 transitions. [2024-06-27 18:31:36,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 73 transitions, 277 flow [2024-06-27 18:31:36,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 73 transitions, 270 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 18:31:36,471 INFO L231 Difference]: Finished difference. Result has 66 places, 59 transitions, 162 flow [2024-06-27 18:31:36,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=66, PETRI_TRANSITIONS=59} [2024-06-27 18:31:36,475 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -1 predicate places. [2024-06-27 18:31:36,475 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 59 transitions, 162 flow [2024-06-27 18:31:36,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 18:31:36,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:31:36,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:31:36,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 18:31:36,476 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:31:36,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:31:36,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1486412712, now seen corresponding path program 1 times [2024-06-27 18:31:36,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:31:36,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449318240] [2024-06-27 18:31:36,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:31:36,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:31:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:31:37,051 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 18:31:37,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:31:37,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449318240] [2024-06-27 18:31:37,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449318240] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:31:37,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:31:37,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 18:31:37,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605033055] [2024-06-27 18:31:37,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:31:37,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 18:31:37,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:31:37,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 18:31:37,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 18:31:37,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 59 [2024-06-27 18:31:37,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 18:31:37,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:31:37,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 59 [2024-06-27 18:31:37,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:31:38,878 INFO L124 PetriNetUnfolderBase]: 14407/21533 cut-off events. [2024-06-27 18:31:38,879 INFO L125 PetriNetUnfolderBase]: For 3770/3770 co-relation queries the response was YES. [2024-06-27 18:31:38,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46298 conditions, 21533 events. 14407/21533 cut-off events. For 3770/3770 co-relation queries the response was YES. Maximal size of possible extension queue 924. Compared 149996 event pairs, 10359 based on Foata normal form. 4/20294 useless extension candidates. Maximal degree in co-relation 46286. Up to 19236 conditions per place. [2024-06-27 18:31:39,009 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 64 selfloop transitions, 11 changer transitions 0/92 dead transitions. [2024-06-27 18:31:39,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 92 transitions, 398 flow [2024-06-27 18:31:39,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 18:31:39,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 18:31:39,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 163 transitions. [2024-06-27 18:31:39,016 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.690677966101695 [2024-06-27 18:31:39,016 INFO L175 Difference]: Start difference. First operand has 66 places, 59 transitions, 162 flow. Second operand 4 states and 163 transitions. [2024-06-27 18:31:39,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 92 transitions, 398 flow [2024-06-27 18:31:39,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 92 transitions, 392 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 18:31:39,020 INFO L231 Difference]: Finished difference. Result has 69 places, 64 transitions, 220 flow [2024-06-27 18:31:39,020 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=220, PETRI_PLACES=69, PETRI_TRANSITIONS=64} [2024-06-27 18:31:39,021 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2024-06-27 18:31:39,023 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 64 transitions, 220 flow [2024-06-27 18:31:39,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 18:31:39,023 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:31:39,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:31:39,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 18:31:39,029 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:31:39,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:31:39,030 INFO L85 PathProgramCache]: Analyzing trace with hash -606947803, now seen corresponding path program 1 times [2024-06-27 18:31:39,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:31:39,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974278463] [2024-06-27 18:31:39,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:31:39,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:31:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:31:40,010 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 18:31:40,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:31:40,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974278463] [2024-06-27 18:31:40,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974278463] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:31:40,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:31:40,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:31:40,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645232179] [2024-06-27 18:31:40,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:31:40,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:31:40,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:31:40,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:31:40,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:31:40,109 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 59 [2024-06-27 18:31:40,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 220 flow. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 18:31:40,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:31:40,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 59 [2024-06-27 18:31:40,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:31:42,361 INFO L124 PetriNetUnfolderBase]: 18290/27156 cut-off events. [2024-06-27 18:31:42,361 INFO L125 PetriNetUnfolderBase]: For 12585/12585 co-relation queries the response was YES. [2024-06-27 18:31:42,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64294 conditions, 27156 events. 18290/27156 cut-off events. For 12585/12585 co-relation queries the response was YES. Maximal size of possible extension queue 1107. Compared 189932 event pairs, 10514 based on Foata normal form. 8/25614 useless extension candidates. Maximal degree in co-relation 64280. Up to 24240 conditions per place. [2024-06-27 18:31:42,531 INFO L140 encePairwiseOnDemand]: 47/59 looper letters, 90 selfloop transitions, 20 changer transitions 0/126 dead transitions. [2024-06-27 18:31:42,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 126 transitions, 618 flow [2024-06-27 18:31:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:31:42,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:31:42,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 234 transitions. [2024-06-27 18:31:42,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6610169491525424 [2024-06-27 18:31:42,534 INFO L175 Difference]: Start difference. First operand has 69 places, 64 transitions, 220 flow. Second operand 6 states and 234 transitions. [2024-06-27 18:31:42,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 126 transitions, 618 flow [2024-06-27 18:31:42,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 126 transitions, 582 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-06-27 18:31:42,539 INFO L231 Difference]: Finished difference. Result has 73 places, 72 transitions, 299 flow [2024-06-27 18:31:42,539 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=299, PETRI_PLACES=73, PETRI_TRANSITIONS=72} [2024-06-27 18:31:42,540 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 6 predicate places. [2024-06-27 18:31:42,540 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 72 transitions, 299 flow [2024-06-27 18:31:42,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 18:31:42,541 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:31:42,541 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:31:42,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 18:31:42,542 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:31:42,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:31:42,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1168682480, now seen corresponding path program 1 times [2024-06-27 18:31:42,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:31:42,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322869350] [2024-06-27 18:31:42,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:31:42,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:31:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:31:43,349 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 18:31:43,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:31:43,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322869350] [2024-06-27 18:31:43,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322869350] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:31:43,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:31:43,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:31:43,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008989284] [2024-06-27 18:31:43,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:31:43,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:31:43,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:31:43,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:31:43,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:31:43,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 59 [2024-06-27 18:31:43,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 72 transitions, 299 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:31:43,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:31:43,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 59 [2024-06-27 18:31:43,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:31:45,933 INFO L124 PetriNetUnfolderBase]: 18280/26156 cut-off events. [2024-06-27 18:31:45,934 INFO L125 PetriNetUnfolderBase]: For 20908/20908 co-relation queries the response was YES. [2024-06-27 18:31:46,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69734 conditions, 26156 events. 18280/26156 cut-off events. For 20908/20908 co-relation queries the response was YES. Maximal size of possible extension queue 1001. Compared 170982 event pairs, 8075 based on Foata normal form. 3/25245 useless extension candidates. Maximal degree in co-relation 69717. Up to 24317 conditions per place. [2024-06-27 18:31:46,219 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 77 selfloop transitions, 12 changer transitions 0/104 dead transitions. [2024-06-27 18:31:46,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 104 transitions, 571 flow [2024-06-27 18:31:46,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:31:46,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:31:46,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2024-06-27 18:31:46,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5864406779661017 [2024-06-27 18:31:46,221 INFO L175 Difference]: Start difference. First operand has 73 places, 72 transitions, 299 flow. Second operand 5 states and 173 transitions. [2024-06-27 18:31:46,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 104 transitions, 571 flow [2024-06-27 18:31:46,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 104 transitions, 522 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-06-27 18:31:46,231 INFO L231 Difference]: Finished difference. Result has 75 places, 77 transitions, 326 flow [2024-06-27 18:31:46,231 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=326, PETRI_PLACES=75, PETRI_TRANSITIONS=77} [2024-06-27 18:31:46,233 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 8 predicate places. [2024-06-27 18:31:46,233 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 77 transitions, 326 flow [2024-06-27 18:31:46,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:31:46,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:31:46,233 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:31:46,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 18:31:46,234 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:31:46,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:31:46,234 INFO L85 PathProgramCache]: Analyzing trace with hash 758198599, now seen corresponding path program 1 times [2024-06-27 18:31:46,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:31:46,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530663789] [2024-06-27 18:31:46,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:31:46,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:31:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:31:47,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:31:47,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:31:47,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530663789] [2024-06-27 18:31:47,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530663789] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:31:47,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:31:47,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:31:47,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430363896] [2024-06-27 18:31:47,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:31:47,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:31:47,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:31:47,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:31:47,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:31:47,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-27 18:31:47,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 77 transitions, 326 flow. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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 18:31:47,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:31:47,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-27 18:31:47,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:31:50,276 INFO L124 PetriNetUnfolderBase]: 20909/28852 cut-off events. [2024-06-27 18:31:50,277 INFO L125 PetriNetUnfolderBase]: For 35732/35754 co-relation queries the response was YES. [2024-06-27 18:31:50,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84406 conditions, 28852 events. 20909/28852 cut-off events. For 35732/35754 co-relation queries the response was YES. Maximal size of possible extension queue 1086. Compared 179465 event pairs, 8940 based on Foata normal form. 5/27935 useless extension candidates. Maximal degree in co-relation 84387. Up to 27675 conditions per place. [2024-06-27 18:31:50,438 INFO L140 encePairwiseOnDemand]: 47/59 looper letters, 92 selfloop transitions, 26 changer transitions 0/132 dead transitions. [2024-06-27 18:31:50,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 132 transitions, 768 flow [2024-06-27 18:31:50,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:31:50,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:31:50,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 212 transitions. [2024-06-27 18:31:50,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5988700564971752 [2024-06-27 18:31:50,440 INFO L175 Difference]: Start difference. First operand has 75 places, 77 transitions, 326 flow. Second operand 6 states and 212 transitions. [2024-06-27 18:31:50,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 132 transitions, 768 flow [2024-06-27 18:31:50,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 132 transitions, 730 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-06-27 18:31:50,447 INFO L231 Difference]: Finished difference. Result has 78 places, 87 transitions, 438 flow [2024-06-27 18:31:50,447 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=438, PETRI_PLACES=78, PETRI_TRANSITIONS=87} [2024-06-27 18:31:50,448 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 11 predicate places. [2024-06-27 18:31:50,448 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 87 transitions, 438 flow [2024-06-27 18:31:50,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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 18:31:50,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:31:50,448 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:31:50,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 18:31:50,449 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:31:50,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:31:50,449 INFO L85 PathProgramCache]: Analyzing trace with hash 787899079, now seen corresponding path program 2 times [2024-06-27 18:31:50,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:31:50,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153157755] [2024-06-27 18:31:50,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:31:50,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:31:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:31:51,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:31:51,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:31:51,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153157755] [2024-06-27 18:31:51,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153157755] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:31:51,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:31:51,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:31:51,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699093469] [2024-06-27 18:31:51,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:31:51,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:31:51,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:31:51,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:31:51,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:31:51,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-27 18:31:51,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 87 transitions, 438 flow. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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 18:31:51,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:31:51,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-27 18:31:51,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:31:54,529 INFO L124 PetriNetUnfolderBase]: 20899/28864 cut-off events. [2024-06-27 18:31:54,529 INFO L125 PetriNetUnfolderBase]: For 51430/51481 co-relation queries the response was YES. [2024-06-27 18:31:54,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91185 conditions, 28864 events. 20899/28864 cut-off events. For 51430/51481 co-relation queries the response was YES. Maximal size of possible extension queue 1086. Compared 180124 event pairs, 8943 based on Foata normal form. 35/27979 useless extension candidates. Maximal degree in co-relation 91165. Up to 27665 conditions per place. [2024-06-27 18:31:54,719 INFO L140 encePairwiseOnDemand]: 47/59 looper letters, 86 selfloop transitions, 26 changer transitions 0/126 dead transitions. [2024-06-27 18:31:54,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 126 transitions, 754 flow [2024-06-27 18:31:54,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:31:54,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:31:54,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2024-06-27 18:31:54,721 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5819209039548022 [2024-06-27 18:31:54,721 INFO L175 Difference]: Start difference. First operand has 78 places, 87 transitions, 438 flow. Second operand 6 states and 206 transitions. [2024-06-27 18:31:54,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 126 transitions, 754 flow [2024-06-27 18:31:54,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 126 transitions, 692 flow, removed 25 selfloop flow, removed 2 redundant places. [2024-06-27 18:31:54,751 INFO L231 Difference]: Finished difference. Result has 82 places, 87 transitions, 440 flow [2024-06-27 18:31:54,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=440, PETRI_PLACES=82, PETRI_TRANSITIONS=87} [2024-06-27 18:31:54,752 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 15 predicate places. [2024-06-27 18:31:54,752 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 87 transitions, 440 flow [2024-06-27 18:31:54,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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 18:31:54,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:31:54,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:31:54,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 18:31:54,753 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:31:54,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:31:54,754 INFO L85 PathProgramCache]: Analyzing trace with hash -246132229, now seen corresponding path program 1 times [2024-06-27 18:31:54,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:31:54,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99794354] [2024-06-27 18:31:54,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:31:54,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:31:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:31:55,810 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 18:31:55,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:31:55,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99794354] [2024-06-27 18:31:55,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99794354] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:31:55,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:31:55,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 18:31:55,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705308820] [2024-06-27 18:31:55,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:31:55,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 18:31:55,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:31:55,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 18:31:55,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-27 18:31:55,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-27 18:31:55,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 87 transitions, 440 flow. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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 18:31:55,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:31:55,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-27 18:31:55,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:31:58,739 INFO L124 PetriNetUnfolderBase]: 21098/29166 cut-off events. [2024-06-27 18:31:58,740 INFO L125 PetriNetUnfolderBase]: For 54359/54407 co-relation queries the response was YES. [2024-06-27 18:31:58,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91896 conditions, 29166 events. 21098/29166 cut-off events. For 54359/54407 co-relation queries the response was YES. Maximal size of possible extension queue 1086. Compared 181668 event pairs, 8928 based on Foata normal form. 7/28225 useless extension candidates. Maximal degree in co-relation 91874. Up to 27885 conditions per place. [2024-06-27 18:31:58,940 INFO L140 encePairwiseOnDemand]: 42/59 looper letters, 121 selfloop transitions, 40 changer transitions 0/175 dead transitions. [2024-06-27 18:31:58,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 175 transitions, 1062 flow [2024-06-27 18:31:58,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 18:31:58,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 18:31:58,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 281 transitions. [2024-06-27 18:31:58,942 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5953389830508474 [2024-06-27 18:31:58,942 INFO L175 Difference]: Start difference. First operand has 82 places, 87 transitions, 440 flow. Second operand 8 states and 281 transitions. [2024-06-27 18:31:58,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 175 transitions, 1062 flow [2024-06-27 18:31:58,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 175 transitions, 970 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-06-27 18:31:58,963 INFO L231 Difference]: Finished difference. Result has 86 places, 111 transitions, 632 flow [2024-06-27 18:31:58,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=632, PETRI_PLACES=86, PETRI_TRANSITIONS=111} [2024-06-27 18:31:58,964 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 19 predicate places. [2024-06-27 18:31:58,964 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 111 transitions, 632 flow [2024-06-27 18:31:58,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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 18:31:58,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:31:58,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:31:58,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 18:31:58,965 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:31:58,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:31:58,966 INFO L85 PathProgramCache]: Analyzing trace with hash -674916877, now seen corresponding path program 2 times [2024-06-27 18:31:58,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:31:58,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171251967] [2024-06-27 18:31:58,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:31:58,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:31:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:32:00,030 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 18:32:00,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:32:00,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171251967] [2024-06-27 18:32:00,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171251967] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:32:00,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:32:00,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 18:32:00,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807025135] [2024-06-27 18:32:00,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:32:00,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 18:32:00,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:32:00,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 18:32:00,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-27 18:32:00,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-27 18:32:00,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 111 transitions, 632 flow. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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 18:32:00,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:32:00,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-27 18:32:00,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:32:03,292 INFO L124 PetriNetUnfolderBase]: 21147/29216 cut-off events. [2024-06-27 18:32:03,292 INFO L125 PetriNetUnfolderBase]: For 76552/76636 co-relation queries the response was YES. [2024-06-27 18:32:03,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100041 conditions, 29216 events. 21147/29216 cut-off events. For 76552/76636 co-relation queries the response was YES. Maximal size of possible extension queue 1084. Compared 181282 event pairs, 8857 based on Foata normal form. 11/28252 useless extension candidates. Maximal degree in co-relation 100017. Up to 27909 conditions per place. [2024-06-27 18:32:03,451 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 119 selfloop transitions, 42 changer transitions 0/175 dead transitions. [2024-06-27 18:32:03,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 175 transitions, 1192 flow [2024-06-27 18:32:03,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 18:32:03,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 18:32:03,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 245 transitions. [2024-06-27 18:32:03,453 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5932203389830508 [2024-06-27 18:32:03,453 INFO L175 Difference]: Start difference. First operand has 86 places, 111 transitions, 632 flow. Second operand 7 states and 245 transitions. [2024-06-27 18:32:03,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 175 transitions, 1192 flow [2024-06-27 18:32:03,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 175 transitions, 1116 flow, removed 18 selfloop flow, removed 3 redundant places. [2024-06-27 18:32:03,483 INFO L231 Difference]: Finished difference. Result has 90 places, 116 transitions, 725 flow [2024-06-27 18:32:03,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=725, PETRI_PLACES=90, PETRI_TRANSITIONS=116} [2024-06-27 18:32:03,483 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 23 predicate places. [2024-06-27 18:32:03,484 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 116 transitions, 725 flow [2024-06-27 18:32:03,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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 18:32:03,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:32:03,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:32:03,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 18:32:03,484 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:32:03,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:32:03,485 INFO L85 PathProgramCache]: Analyzing trace with hash -674912227, now seen corresponding path program 3 times [2024-06-27 18:32:03,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:32:03,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140690823] [2024-06-27 18:32:03,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:32:03,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:32:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:32:04,364 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 18:32:04,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:32:04,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140690823] [2024-06-27 18:32:04,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140690823] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:32:04,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:32:04,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 18:32:04,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354158334] [2024-06-27 18:32:04,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:32:04,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 18:32:04,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:32:04,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 18:32:04,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-06-27 18:32:04,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-27 18:32:04,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 116 transitions, 725 flow. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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 18:32:04,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:32:04,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-27 18:32:04,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:32:08,306 INFO L124 PetriNetUnfolderBase]: 21196/29296 cut-off events. [2024-06-27 18:32:08,307 INFO L125 PetriNetUnfolderBase]: For 99948/100016 co-relation queries the response was YES. [2024-06-27 18:32:08,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107211 conditions, 29296 events. 21196/29296 cut-off events. For 99948/100016 co-relation queries the response was YES. Maximal size of possible extension queue 1086. Compared 182965 event pairs, 8559 based on Foata normal form. 31/28362 useless extension candidates. Maximal degree in co-relation 107186. Up to 27830 conditions per place. [2024-06-27 18:32:08,482 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 105 selfloop transitions, 63 changer transitions 0/182 dead transitions. [2024-06-27 18:32:08,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 182 transitions, 1399 flow [2024-06-27 18:32:08,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 18:32:08,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 18:32:08,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 249 transitions. [2024-06-27 18:32:08,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6029055690072639 [2024-06-27 18:32:08,484 INFO L175 Difference]: Start difference. First operand has 90 places, 116 transitions, 725 flow. Second operand 7 states and 249 transitions. [2024-06-27 18:32:08,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 182 transitions, 1399 flow [2024-06-27 18:32:08,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 182 transitions, 1250 flow, removed 39 selfloop flow, removed 5 redundant places. [2024-06-27 18:32:08,533 INFO L231 Difference]: Finished difference. Result has 92 places, 126 transitions, 862 flow [2024-06-27 18:32:08,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=862, PETRI_PLACES=92, PETRI_TRANSITIONS=126} [2024-06-27 18:32:08,534 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 25 predicate places. [2024-06-27 18:32:08,534 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 126 transitions, 862 flow [2024-06-27 18:32:08,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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 18:32:08,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:32:08,535 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:32:08,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 18:32:08,535 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:32:08,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:32:08,535 INFO L85 PathProgramCache]: Analyzing trace with hash -2141044049, now seen corresponding path program 4 times [2024-06-27 18:32:08,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:32:08,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607794348] [2024-06-27 18:32:08,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:32:08,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:32:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:32:09,479 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 18:32:09,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:32:09,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607794348] [2024-06-27 18:32:09,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607794348] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:32:09,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:32:09,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 18:32:09,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436547534] [2024-06-27 18:32:09,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:32:09,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 18:32:09,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:32:09,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 18:32:09,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-06-27 18:32:09,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-27 18:32:09,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 126 transitions, 862 flow. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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 18:32:09,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:32:09,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-27 18:32:09,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:32:13,414 INFO L124 PetriNetUnfolderBase]: 21186/29306 cut-off events. [2024-06-27 18:32:13,414 INFO L125 PetriNetUnfolderBase]: For 100924/101002 co-relation queries the response was YES. [2024-06-27 18:32:13,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107160 conditions, 29306 events. 21186/29306 cut-off events. For 100924/101002 co-relation queries the response was YES. Maximal size of possible extension queue 1086. Compared 183173 event pairs, 8569 based on Foata normal form. 29/28367 useless extension candidates. Maximal degree in co-relation 107134. Up to 27820 conditions per place. [2024-06-27 18:32:13,651 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 100 selfloop transitions, 63 changer transitions 0/177 dead transitions. [2024-06-27 18:32:13,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 177 transitions, 1334 flow [2024-06-27 18:32:13,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 18:32:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 18:32:13,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 243 transitions. [2024-06-27 18:32:13,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5883777239709443 [2024-06-27 18:32:13,654 INFO L175 Difference]: Start difference. First operand has 92 places, 126 transitions, 862 flow. Second operand 7 states and 243 transitions. [2024-06-27 18:32:13,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 177 transitions, 1334 flow [2024-06-27 18:32:13,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 177 transitions, 1226 flow, removed 38 selfloop flow, removed 3 redundant places. [2024-06-27 18:32:13,711 INFO L231 Difference]: Finished difference. Result has 96 places, 126 transitions, 892 flow [2024-06-27 18:32:13,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=892, PETRI_PLACES=96, PETRI_TRANSITIONS=126} [2024-06-27 18:32:13,711 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 29 predicate places. [2024-06-27 18:32:13,712 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 126 transitions, 892 flow [2024-06-27 18:32:13,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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 18:32:13,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:32:13,712 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:32:13,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 18:32:13,713 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:32:13,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:32:13,713 INFO L85 PathProgramCache]: Analyzing trace with hash -497534443, now seen corresponding path program 1 times [2024-06-27 18:32:13,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:32:13,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50369262] [2024-06-27 18:32:13,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:32:13,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:32:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:32:14,862 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 18:32:14,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:32:14,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50369262] [2024-06-27 18:32:14,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50369262] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:32:14,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:32:14,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 18:32:14,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979925172] [2024-06-27 18:32:14,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:32:14,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 18:32:14,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:32:14,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 18:32:14,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-27 18:32:14,989 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-27 18:32:14,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 126 transitions, 892 flow. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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 18:32:14,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:32:14,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-27 18:32:14,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand