./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix051_pso.opt_rmo.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/mix051_pso.opt_rmo.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/mix051_pso.opt_rmo.opt_tso.opt.i ./goblint.2024-06-19_11-23-25.files/protection/mix051_pso.opt_rmo.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 18:37:08,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 18:37:08,148 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 18:37:08,153 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 18:37:08,154 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 18:37:08,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 18:37:08,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 18:37:08,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 18:37:08,180 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 18:37:08,183 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 18:37:08,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 18:37:08,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 18:37:08,184 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 18:37:08,185 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 18:37:08,185 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 18:37:08,186 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 18:37:08,186 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 18:37:08,186 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 18:37:08,186 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 18:37:08,186 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 18:37:08,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 18:37:08,187 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 18:37:08,187 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 18:37:08,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 18:37:08,188 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 18:37:08,188 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 18:37:08,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 18:37:08,188 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 18:37:08,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 18:37:08,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 18:37:08,190 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 18:37:08,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 18:37:08,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:37:08,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 18:37:08,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 18:37:08,190 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 18:37:08,191 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 18:37:08,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 18:37:08,191 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 18:37:08,191 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 18:37:08,191 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 18:37:08,192 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 18:37:08,192 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 18:37:08,192 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 18:37:08,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 18:37:08,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 18:37:08,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 18:37:08,465 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 18:37:08,466 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 18:37:08,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i [2024-06-27 18:37:09,527 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 18:37:09,745 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 18:37:09,745 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i [2024-06-27 18:37:09,759 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1d0d4da0/a0ce049277504b6e9c109dc43c287945/FLAG91bcbab9d [2024-06-27 18:37:09,769 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1d0d4da0/a0ce049277504b6e9c109dc43c287945 [2024-06-27 18:37:09,771 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 18:37:09,772 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 18:37:09,772 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/mix051_pso.opt_rmo.opt_tso.opt.yml/witness.yml [2024-06-27 18:37:09,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 18:37:09,939 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 18:37:09,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 18:37:09,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 18:37:09,944 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 18:37:09,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:37:09" (1/2) ... [2024-06-27 18:37:09,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ba005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:37:09, skipping insertion in model container [2024-06-27 18:37:09,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:37:09" (1/2) ... [2024-06-27 18:37:09,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6da9564d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:37:09, skipping insertion in model container [2024-06-27 18:37:09,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:37:09" (2/2) ... [2024-06-27 18:37:09,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ba005 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:37:09, skipping insertion in model container [2024-06-27 18:37:09,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:37:09" (2/2) ... [2024-06-27 18:37:09,947 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 18:37:10,049 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 18:37:10,051 INFO L97 edCorrectnessWitness]: Location invariant before [L851-L851] (((((((((((((((((((((! multithreaded || z$r_buff1_thd3 == (_Bool)0) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0) [2024-06-27 18:37:10,051 INFO L97 edCorrectnessWitness]: Location invariant before [L853-L853] (((((((((((((((((((((! multithreaded || z$r_buff1_thd3 == (_Bool)0) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0) [2024-06-27 18:37:10,051 INFO L97 edCorrectnessWitness]: Location invariant before [L854-L854] (((((((((((((((((((((! multithreaded || z$r_buff1_thd3 == (_Bool)0) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0) [2024-06-27 18:37:10,052 INFO L97 edCorrectnessWitness]: Location invariant before [L849-L849] (((((((((((((((((((((! multithreaded || z$r_buff1_thd3 == (_Bool)0) && (! multithreaded || (z$w_buff0 == 0 || z$w_buff0 == 1))) && (! multithreaded || (z$mem_tmp == 0 || z$mem_tmp == 1))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1))) && (! multithreaded || ((x == 0 || x == 1) || x == 2))) && (! multithreaded || (y == 0 || y == 1))) && (! multithreaded || (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || (z == 0 || z == 1))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) && (! multithreaded || (z$w_buff1 == 0 || z$w_buff1 == 1))) && (! multithreaded || (a == 0 || a == 1))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0) [2024-06-27 18:37:10,052 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 18:37:10,053 INFO L106 edCorrectnessWitness]: ghost_update [L847-L847] multithreaded = 1; [2024-06-27 18:37:10,094 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 18:37:10,237 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/mix051_pso.opt_rmo.opt_tso.opt.i[964,977] [2024-06-27 18:37:10,368 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:37:10,381 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 18:37:10,408 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/mix051_pso.opt_rmo.opt_tso.opt.i[964,977] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 18:37:10,511 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:37:10,556 INFO L206 MainTranslator]: Completed translation [2024-06-27 18:37:10,556 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:37:10 WrapperNode [2024-06-27 18:37:10,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 18:37:10,557 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 18:37:10,557 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 18:37:10,558 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 18:37:10,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:37:10" (1/1) ... [2024-06-27 18:37:10,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:37:10" (1/1) ... [2024-06-27 18:37:10,603 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 134 [2024-06-27 18:37:10,603 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 18:37:10,609 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 18:37:10,609 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 18:37:10,609 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 18:37:10,618 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:37:10" (1/1) ... [2024-06-27 18:37:10,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:37:10" (1/1) ... [2024-06-27 18:37:10,621 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:37:10" (1/1) ... [2024-06-27 18:37:10,633 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 18:37:10,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:37:10" (1/1) ... [2024-06-27 18:37:10,633 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:37:10" (1/1) ... [2024-06-27 18:37:10,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:37:10" (1/1) ... [2024-06-27 18:37:10,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:37:10" (1/1) ... [2024-06-27 18:37:10,643 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:37:10" (1/1) ... [2024-06-27 18:37:10,644 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:37:10" (1/1) ... [2024-06-27 18:37:10,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 18:37:10,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 18:37:10,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 18:37:10,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 18:37:10,648 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:37:10" (1/1) ... [2024-06-27 18:37:10,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:37:10,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 18:37:10,702 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 18:37:10,720 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 18:37:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 18:37:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 18:37:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 18:37:10,731 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 18:37:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 18:37:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 18:37:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 18:37:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 18:37:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 18:37:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 18:37:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 18:37:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 18:37:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 18:37:10,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 18:37:10,736 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 18:37:10,928 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 18:37:10,952 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 18:37:11,453 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 18:37:11,453 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 18:37:11,597 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 18:37:11,598 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 18:37:11,598 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:37:11 BoogieIcfgContainer [2024-06-27 18:37:11,598 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 18:37:11,600 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 18:37:11,600 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 18:37:11,603 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 18:37:11,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 06:37:09" (1/4) ... [2024-06-27 18:37:11,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a93f224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:37:11, skipping insertion in model container [2024-06-27 18:37:11,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:37:09" (2/4) ... [2024-06-27 18:37:11,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a93f224 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:37:11, skipping insertion in model container [2024-06-27 18:37:11,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:37:10" (3/4) ... [2024-06-27 18:37:11,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a93f224 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:37:11, skipping insertion in model container [2024-06-27 18:37:11,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:37:11" (4/4) ... [2024-06-27 18:37:11,606 INFO L112 eAbstractionObserver]: Analyzing ICFG mix051_pso.opt_rmo.opt_tso.opt.i [2024-06-27 18:37:11,620 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 18:37:11,620 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-27 18:37:11,620 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 18:37:11,667 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 18:37:11,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 57 transitions, 130 flow [2024-06-27 18:37:11,719 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-06-27 18:37:11,720 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:37:11,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 53 events. 1/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 96 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2024-06-27 18:37:11,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 57 transitions, 130 flow [2024-06-27 18:37:11,727 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 53 transitions, 118 flow [2024-06-27 18:37:11,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 18:37:11,738 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;@4782c2a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 18:37:11,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-27 18:37:11,741 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 18:37:11,741 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-27 18:37:11,741 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:37:11,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:11,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 18:37:11,742 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 18:37:11,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:11,746 INFO L85 PathProgramCache]: Analyzing trace with hash 352227912, now seen corresponding path program 1 times [2024-06-27 18:37:11,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:11,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768794595] [2024-06-27 18:37:11,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:11,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:12,522 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 18:37:12,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:12,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768794595] [2024-06-27 18:37:12,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768794595] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:12,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:12,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 18:37:12,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799863596] [2024-06-27 18:37:12,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:12,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:37:12,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:12,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:37:12,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:37:12,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 57 [2024-06-27 18:37:12,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 53 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 18:37:12,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:12,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 57 [2024-06-27 18:37:12,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:14,457 INFO L124 PetriNetUnfolderBase]: 13840/21375 cut-off events. [2024-06-27 18:37:14,458 INFO L125 PetriNetUnfolderBase]: For 123/123 co-relation queries the response was YES. [2024-06-27 18:37:14,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40170 conditions, 21375 events. 13840/21375 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 894. Compared 155429 event pairs, 11680 based on Foata normal form. 601/20501 useless extension candidates. Maximal degree in co-relation 40157. Up to 18522 conditions per place. [2024-06-27 18:37:14,601 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 49 selfloop transitions, 6 changer transitions 0/71 dead transitions. [2024-06-27 18:37:14,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 71 transitions, 273 flow [2024-06-27 18:37:14,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:37:14,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:37:14,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-06-27 18:37:14,610 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7076023391812866 [2024-06-27 18:37:14,611 INFO L175 Difference]: Start difference. First operand has 65 places, 53 transitions, 118 flow. Second operand 3 states and 121 transitions. [2024-06-27 18:37:14,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 71 transitions, 273 flow [2024-06-27 18:37:14,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 71 transitions, 266 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 18:37:14,619 INFO L231 Difference]: Finished difference. Result has 64 places, 57 transitions, 158 flow [2024-06-27 18:37:14,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=64, PETRI_TRANSITIONS=57} [2024-06-27 18:37:14,623 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -1 predicate places. [2024-06-27 18:37:14,623 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 57 transitions, 158 flow [2024-06-27 18:37:14,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 18:37:14,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:14,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:14,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 18:37:14,624 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 18:37:14,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:14,626 INFO L85 PathProgramCache]: Analyzing trace with hash -811345531, now seen corresponding path program 1 times [2024-06-27 18:37:14,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:14,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130511332] [2024-06-27 18:37:14,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:14,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:15,359 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 18:37:15,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:15,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130511332] [2024-06-27 18:37:15,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130511332] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:15,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:15,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 18:37:15,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913123936] [2024-06-27 18:37:15,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:15,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 18:37:15,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:15,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 18:37:15,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 18:37:15,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 57 [2024-06-27 18:37:15,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 57 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:37:15,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:15,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 57 [2024-06-27 18:37:15,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:17,042 INFO L124 PetriNetUnfolderBase]: 16074/21793 cut-off events. [2024-06-27 18:37:17,043 INFO L125 PetriNetUnfolderBase]: For 3424/3424 co-relation queries the response was YES. [2024-06-27 18:37:17,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49249 conditions, 21793 events. 16074/21793 cut-off events. For 3424/3424 co-relation queries the response was YES. Maximal size of possible extension queue 871. Compared 129930 event pairs, 9499 based on Foata normal form. 4/21059 useless extension candidates. Maximal degree in co-relation 49237. Up to 21423 conditions per place. [2024-06-27 18:37:17,289 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 64 selfloop transitions, 11 changer transitions 0/90 dead transitions. [2024-06-27 18:37:17,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 90 transitions, 394 flow [2024-06-27 18:37:17,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 18:37:17,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 18:37:17,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 155 transitions. [2024-06-27 18:37:17,291 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6798245614035088 [2024-06-27 18:37:17,292 INFO L175 Difference]: Start difference. First operand has 64 places, 57 transitions, 158 flow. Second operand 4 states and 155 transitions. [2024-06-27 18:37:17,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 90 transitions, 394 flow [2024-06-27 18:37:17,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 90 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 18:37:17,294 INFO L231 Difference]: Finished difference. Result has 67 places, 62 transitions, 216 flow [2024-06-27 18:37:17,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=216, PETRI_PLACES=67, PETRI_TRANSITIONS=62} [2024-06-27 18:37:17,294 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 2 predicate places. [2024-06-27 18:37:17,295 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 62 transitions, 216 flow [2024-06-27 18:37:17,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:37:17,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:17,295 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:17,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 18:37:17,296 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 18:37:17,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:17,296 INFO L85 PathProgramCache]: Analyzing trace with hash 618092957, now seen corresponding path program 1 times [2024-06-27 18:37:17,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:17,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283892731] [2024-06-27 18:37:17,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:17,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:17,797 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 18:37:17,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:17,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283892731] [2024-06-27 18:37:17,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283892731] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:17,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:17,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 18:37:17,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977513509] [2024-06-27 18:37:17,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:17,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 18:37:17,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:17,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 18:37:17,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-27 18:37:17,842 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 57 [2024-06-27 18:37:17,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 62 transitions, 216 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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 18:37:17,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:17,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 57 [2024-06-27 18:37:17,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:19,761 INFO L124 PetriNetUnfolderBase]: 16114/21863 cut-off events. [2024-06-27 18:37:19,762 INFO L125 PetriNetUnfolderBase]: For 9618/9618 co-relation queries the response was YES. [2024-06-27 18:37:19,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55103 conditions, 21863 events. 16114/21863 cut-off events. For 9618/9618 co-relation queries the response was YES. Maximal size of possible extension queue 872. Compared 130003 event pairs, 7118 based on Foata normal form. 7/21138 useless extension candidates. Maximal degree in co-relation 55089. Up to 21326 conditions per place. [2024-06-27 18:37:19,882 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 86 selfloop transitions, 26 changer transitions 0/127 dead transitions. [2024-06-27 18:37:19,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 127 transitions, 656 flow [2024-06-27 18:37:19,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:37:19,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:37:19,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 203 transitions. [2024-06-27 18:37:19,888 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.712280701754386 [2024-06-27 18:37:19,888 INFO L175 Difference]: Start difference. First operand has 67 places, 62 transitions, 216 flow. Second operand 5 states and 203 transitions. [2024-06-27 18:37:19,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 127 transitions, 656 flow [2024-06-27 18:37:19,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 127 transitions, 632 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-06-27 18:37:19,896 INFO L231 Difference]: Finished difference. Result has 72 places, 79 transitions, 377 flow [2024-06-27 18:37:19,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=377, PETRI_PLACES=72, PETRI_TRANSITIONS=79} [2024-06-27 18:37:19,897 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 7 predicate places. [2024-06-27 18:37:19,897 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 79 transitions, 377 flow [2024-06-27 18:37:19,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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 18:37:19,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:19,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:19,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 18:37:19,898 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:37:19,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:19,899 INFO L85 PathProgramCache]: Analyzing trace with hash 422991866, now seen corresponding path program 1 times [2024-06-27 18:37:19,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:19,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38028407] [2024-06-27 18:37:19,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:19,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:20,583 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 18:37:20,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:20,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38028407] [2024-06-27 18:37:20,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38028407] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:20,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:20,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:37:20,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858593374] [2024-06-27 18:37:20,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:20,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:37:20,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:20,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:37:20,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:37:20,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 57 [2024-06-27 18:37:20,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 79 transitions, 377 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:37:20,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:20,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 57 [2024-06-27 18:37:20,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:22,854 INFO L124 PetriNetUnfolderBase]: 16414/22273 cut-off events. [2024-06-27 18:37:22,854 INFO L125 PetriNetUnfolderBase]: For 24189/24216 co-relation queries the response was YES. [2024-06-27 18:37:22,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65981 conditions, 22273 events. 16414/22273 cut-off events. For 24189/24216 co-relation queries the response was YES. Maximal size of possible extension queue 883. Compared 132637 event pairs, 5477 based on Foata normal form. 56/21541 useless extension candidates. Maximal degree in co-relation 65964. Up to 21412 conditions per place. [2024-06-27 18:37:22,980 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 100 selfloop transitions, 30 changer transitions 0/145 dead transitions. [2024-06-27 18:37:22,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 145 transitions, 849 flow [2024-06-27 18:37:22,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:37:22,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:37:22,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 240 transitions. [2024-06-27 18:37:22,984 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7017543859649122 [2024-06-27 18:37:22,984 INFO L175 Difference]: Start difference. First operand has 72 places, 79 transitions, 377 flow. Second operand 6 states and 240 transitions. [2024-06-27 18:37:22,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 145 transitions, 849 flow [2024-06-27 18:37:22,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 145 transitions, 833 flow, removed 8 selfloop flow, removed 0 redundant places. [2024-06-27 18:37:22,995 INFO L231 Difference]: Finished difference. Result has 77 places, 82 transitions, 465 flow [2024-06-27 18:37:22,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=465, PETRI_PLACES=77, PETRI_TRANSITIONS=82} [2024-06-27 18:37:22,997 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 12 predicate places. [2024-06-27 18:37:22,997 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 82 transitions, 465 flow [2024-06-27 18:37:22,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:37:22,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:22,998 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:22,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 18:37:22,998 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 18:37:22,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:22,998 INFO L85 PathProgramCache]: Analyzing trace with hash 274427274, now seen corresponding path program 1 times [2024-06-27 18:37:22,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:22,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611721323] [2024-06-27 18:37:22,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:22,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:23,533 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 18:37:23,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:23,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611721323] [2024-06-27 18:37:23,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611721323] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:23,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:23,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:37:23,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259060917] [2024-06-27 18:37:23,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:23,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:37:23,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:23,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:37:23,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:37:23,594 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 57 [2024-06-27 18:37:23,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 82 transitions, 465 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:37:23,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:23,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 57 [2024-06-27 18:37:23,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:25,863 INFO L124 PetriNetUnfolderBase]: 16108/22478 cut-off events. [2024-06-27 18:37:25,864 INFO L125 PetriNetUnfolderBase]: For 33702/33740 co-relation queries the response was YES. [2024-06-27 18:37:25,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71088 conditions, 22478 events. 16108/22478 cut-off events. For 33702/33740 co-relation queries the response was YES. Maximal size of possible extension queue 878. Compared 139632 event pairs, 6351 based on Foata normal form. 3/21595 useless extension candidates. Maximal degree in co-relation 71067. Up to 21489 conditions per place. [2024-06-27 18:37:26,092 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 83 selfloop transitions, 12 changer transitions 0/109 dead transitions. [2024-06-27 18:37:26,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 109 transitions, 719 flow [2024-06-27 18:37:26,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:37:26,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:37:26,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2024-06-27 18:37:26,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5859649122807018 [2024-06-27 18:37:26,099 INFO L175 Difference]: Start difference. First operand has 77 places, 82 transitions, 465 flow. Second operand 5 states and 167 transitions. [2024-06-27 18:37:26,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 109 transitions, 719 flow [2024-06-27 18:37:26,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 109 transitions, 641 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-06-27 18:37:26,123 INFO L231 Difference]: Finished difference. Result has 78 places, 82 transitions, 423 flow [2024-06-27 18:37:26,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=423, PETRI_PLACES=78, PETRI_TRANSITIONS=82} [2024-06-27 18:37:26,126 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 13 predicate places. [2024-06-27 18:37:26,126 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 82 transitions, 423 flow [2024-06-27 18:37:26,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:37:26,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:26,126 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:26,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 18:37:26,127 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 18:37:26,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:26,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1725195869, now seen corresponding path program 1 times [2024-06-27 18:37:26,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:26,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205160265] [2024-06-27 18:37:26,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:26,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:26,797 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 18:37:26,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:26,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205160265] [2024-06-27 18:37:26,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205160265] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:26,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:26,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:37:26,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852259416] [2024-06-27 18:37:26,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:26,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:37:26,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:26,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:37:26,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:37:26,866 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 18:37:26,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 82 transitions, 423 flow. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:37:26,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:26,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 18:37:26,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:29,676 INFO L124 PetriNetUnfolderBase]: 18727/25326 cut-off events. [2024-06-27 18:37:29,677 INFO L125 PetriNetUnfolderBase]: For 42305/42335 co-relation queries the response was YES. [2024-06-27 18:37:29,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80025 conditions, 25326 events. 18727/25326 cut-off events. For 42305/42335 co-relation queries the response was YES. Maximal size of possible extension queue 972. Compared 150480 event pairs, 7465 based on Foata normal form. 34/24468 useless extension candidates. Maximal degree in co-relation 80002. Up to 24737 conditions per place. [2024-06-27 18:37:30,021 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 88 selfloop transitions, 31 changer transitions 0/132 dead transitions. [2024-06-27 18:37:30,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 132 transitions, 837 flow [2024-06-27 18:37:30,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:37:30,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:37:30,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 207 transitions. [2024-06-27 18:37:30,023 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6052631578947368 [2024-06-27 18:37:30,023 INFO L175 Difference]: Start difference. First operand has 78 places, 82 transitions, 423 flow. Second operand 6 states and 207 transitions. [2024-06-27 18:37:30,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 132 transitions, 837 flow [2024-06-27 18:37:30,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 132 transitions, 801 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-06-27 18:37:30,038 INFO L231 Difference]: Finished difference. Result has 80 places, 87 transitions, 505 flow [2024-06-27 18:37:30,039 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=505, PETRI_PLACES=80, PETRI_TRANSITIONS=87} [2024-06-27 18:37:30,041 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 15 predicate places. [2024-06-27 18:37:30,041 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 87 transitions, 505 flow [2024-06-27 18:37:30,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:37:30,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:30,042 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:30,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 18:37:30,042 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 18:37:30,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:30,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1732178309, now seen corresponding path program 2 times [2024-06-27 18:37:30,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:30,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145754648] [2024-06-27 18:37:30,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:30,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:30,681 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 18:37:30,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:30,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145754648] [2024-06-27 18:37:30,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145754648] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:30,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:30,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:37:30,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447240781] [2024-06-27 18:37:30,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:30,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:37:30,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:30,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:37:30,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:37:30,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 18:37:30,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 87 transitions, 505 flow. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:37:30,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:30,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 18:37:30,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:33,246 INFO L124 PetriNetUnfolderBase]: 18672/25253 cut-off events. [2024-06-27 18:37:33,247 INFO L125 PetriNetUnfolderBase]: For 46889/46921 co-relation queries the response was YES. [2024-06-27 18:37:33,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80868 conditions, 25253 events. 18672/25253 cut-off events. For 46889/46921 co-relation queries the response was YES. Maximal size of possible extension queue 972. Compared 149892 event pairs, 7489 based on Foata normal form. 33/24400 useless extension candidates. Maximal degree in co-relation 80845. Up to 24658 conditions per place. [2024-06-27 18:37:33,383 INFO L140 encePairwiseOnDemand]: 44/57 looper letters, 81 selfloop transitions, 32 changer transitions 0/126 dead transitions. [2024-06-27 18:37:33,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 126 transitions, 823 flow [2024-06-27 18:37:33,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:37:33,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:37:33,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2024-06-27 18:37:33,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5906432748538012 [2024-06-27 18:37:33,385 INFO L175 Difference]: Start difference. First operand has 80 places, 87 transitions, 505 flow. Second operand 6 states and 202 transitions. [2024-06-27 18:37:33,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 126 transitions, 823 flow [2024-06-27 18:37:33,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 126 transitions, 766 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-06-27 18:37:33,405 INFO L231 Difference]: Finished difference. Result has 83 places, 87 transitions, 524 flow [2024-06-27 18:37:33,406 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=524, PETRI_PLACES=83, PETRI_TRANSITIONS=87} [2024-06-27 18:37:33,406 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 18 predicate places. [2024-06-27 18:37:33,406 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 87 transitions, 524 flow [2024-06-27 18:37:33,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:37:33,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:33,407 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:33,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 18:37:33,407 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 18:37:33,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:33,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1449440153, now seen corresponding path program 1 times [2024-06-27 18:37:33,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:33,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350182206] [2024-06-27 18:37:33,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:33,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:34,195 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 18:37:34,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:34,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350182206] [2024-06-27 18:37:34,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350182206] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:34,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:34,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 18:37:34,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969022758] [2024-06-27 18:37:34,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:34,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 18:37:34,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:34,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 18:37:34,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-27 18:37:34,312 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 18:37:34,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 87 transitions, 524 flow. Second operand has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:37:34,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:34,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 18:37:34,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:37,094 INFO L124 PetriNetUnfolderBase]: 20494/28332 cut-off events. [2024-06-27 18:37:37,094 INFO L125 PetriNetUnfolderBase]: For 54022/54022 co-relation queries the response was YES. [2024-06-27 18:37:37,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89597 conditions, 28332 events. 20494/28332 cut-off events. For 54022/54022 co-relation queries the response was YES. Maximal size of possible extension queue 987. Compared 173323 event pairs, 8126 based on Foata normal form. 6/27238 useless extension candidates. Maximal degree in co-relation 89573. Up to 27137 conditions per place. [2024-06-27 18:37:37,286 INFO L140 encePairwiseOnDemand]: 45/57 looper letters, 114 selfloop transitions, 21 changer transitions 0/148 dead transitions. [2024-06-27 18:37:37,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 148 transitions, 989 flow [2024-06-27 18:37:37,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 18:37:37,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 18:37:37,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 231 transitions. [2024-06-27 18:37:37,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2024-06-27 18:37:37,288 INFO L175 Difference]: Start difference. First operand has 83 places, 87 transitions, 524 flow. Second operand 7 states and 231 transitions. [2024-06-27 18:37:37,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 148 transitions, 989 flow [2024-06-27 18:37:37,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 148 transitions, 877 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-06-27 18:37:37,333 INFO L231 Difference]: Finished difference. Result has 85 places, 96 transitions, 554 flow [2024-06-27 18:37:37,334 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=554, PETRI_PLACES=85, PETRI_TRANSITIONS=96} [2024-06-27 18:37:37,334 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 20 predicate places. [2024-06-27 18:37:37,334 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 96 transitions, 554 flow [2024-06-27 18:37:37,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:37:37,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:37,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:37,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 18:37:37,336 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:37:37,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:37,336 INFO L85 PathProgramCache]: Analyzing trace with hash 930269523, now seen corresponding path program 1 times [2024-06-27 18:37:37,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:37,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804188527] [2024-06-27 18:37:37,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:37,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:38,237 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 18:37:38,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:38,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804188527] [2024-06-27 18:37:38,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804188527] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:38,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:38,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:37:38,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440170170] [2024-06-27 18:37:38,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:38,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:37:38,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:38,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:37:38,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:37:38,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 18:37:38,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 96 transitions, 554 flow. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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 18:37:38,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:38,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 18:37:38,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:40,909 INFO L124 PetriNetUnfolderBase]: 20478/28636 cut-off events. [2024-06-27 18:37:40,910 INFO L125 PetriNetUnfolderBase]: For 66389/66389 co-relation queries the response was YES. [2024-06-27 18:37:41,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95782 conditions, 28636 events. 20478/28636 cut-off events. For 66389/66389 co-relation queries the response was YES. Maximal size of possible extension queue 1009. Compared 176017 event pairs, 8286 based on Foata normal form. 4/27555 useless extension candidates. Maximal degree in co-relation 95756. Up to 27179 conditions per place. [2024-06-27 18:37:41,142 INFO L140 encePairwiseOnDemand]: 47/57 looper letters, 101 selfloop transitions, 12 changer transitions 0/126 dead transitions. [2024-06-27 18:37:41,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 126 transitions, 882 flow [2024-06-27 18:37:41,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:37:41,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:37:41,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 160 transitions. [2024-06-27 18:37:41,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5614035087719298 [2024-06-27 18:37:41,144 INFO L175 Difference]: Start difference. First operand has 85 places, 96 transitions, 554 flow. Second operand 5 states and 160 transitions. [2024-06-27 18:37:41,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 126 transitions, 882 flow [2024-06-27 18:37:41,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 126 transitions, 819 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-06-27 18:37:41,190 INFO L231 Difference]: Finished difference. Result has 86 places, 101 transitions, 579 flow [2024-06-27 18:37:41,190 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=579, PETRI_PLACES=86, PETRI_TRANSITIONS=101} [2024-06-27 18:37:41,191 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 21 predicate places. [2024-06-27 18:37:41,191 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 101 transitions, 579 flow [2024-06-27 18:37:41,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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 18:37:41,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:41,192 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:41,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 18:37:41,192 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:37:41,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:41,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1227412678, now seen corresponding path program 1 times [2024-06-27 18:37:41,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:41,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406671576] [2024-06-27 18:37:41,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:41,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:41,281 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 18:37:41,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:41,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406671576] [2024-06-27 18:37:41,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406671576] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:41,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:41,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 18:37:41,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534690612] [2024-06-27 18:37:41,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:41,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:37:41,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:41,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:37:41,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:37:41,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 57 [2024-06-27 18:37:41,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 101 transitions, 579 flow. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 18:37:41,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:41,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 57 [2024-06-27 18:37:41,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:42,331 INFO L124 PetriNetUnfolderBase]: 5622/10725 cut-off events. [2024-06-27 18:37:42,331 INFO L125 PetriNetUnfolderBase]: For 26278/29104 co-relation queries the response was YES. [2024-06-27 18:37:42,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28906 conditions, 10725 events. 5622/10725 cut-off events. For 26278/29104 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 97972 event pairs, 1894 based on Foata normal form. 4/9543 useless extension candidates. Maximal degree in co-relation 28880. Up to 6121 conditions per place. [2024-06-27 18:37:42,420 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 30 selfloop transitions, 12 changer transitions 0/99 dead transitions. [2024-06-27 18:37:42,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 99 transitions, 598 flow [2024-06-27 18:37:42,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:37:42,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:37:42,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions. [2024-06-27 18:37:42,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7543859649122807 [2024-06-27 18:37:42,421 INFO L175 Difference]: Start difference. First operand has 86 places, 101 transitions, 579 flow. Second operand 3 states and 129 transitions. [2024-06-27 18:37:42,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 99 transitions, 598 flow [2024-06-27 18:37:42,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 99 transitions, 559 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-06-27 18:37:42,439 INFO L231 Difference]: Finished difference. Result has 84 places, 90 transitions, 481 flow [2024-06-27 18:37:42,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=481, PETRI_PLACES=84, PETRI_TRANSITIONS=90} [2024-06-27 18:37:42,439 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 19 predicate places. [2024-06-27 18:37:42,439 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 90 transitions, 481 flow [2024-06-27 18:37:42,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 18:37:42,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:42,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:42,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 18:37:42,440 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 18:37:42,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:42,441 INFO L85 PathProgramCache]: Analyzing trace with hash -176446478, now seen corresponding path program 1 times [2024-06-27 18:37:42,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:42,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912302784] [2024-06-27 18:37:42,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:42,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:43,063 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 18:37:43,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:43,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912302784] [2024-06-27 18:37:43,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912302784] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:43,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:43,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 18:37:43,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962411025] [2024-06-27 18:37:43,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:43,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 18:37:43,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:43,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 18:37:43,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-27 18:37:43,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 18:37:43,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 90 transitions, 481 flow. Second operand has 8 states, 8 states have (on average 18.5) internal successors, (148), 8 states have internal predecessors, (148), 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 18:37:43,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:43,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 18:37:43,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:46,089 INFO L124 PetriNetUnfolderBase]: 20995/28794 cut-off events. [2024-06-27 18:37:46,089 INFO L125 PetriNetUnfolderBase]: For 110665/110691 co-relation queries the response was YES. [2024-06-27 18:37:46,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100674 conditions, 28794 events. 20995/28794 cut-off events. For 110665/110691 co-relation queries the response was YES. Maximal size of possible extension queue 1039. Compared 176097 event pairs, 6066 based on Foata normal form. 18/28778 useless extension candidates. Maximal degree in co-relation 100648. Up to 26375 conditions per place. [2024-06-27 18:37:46,290 INFO L140 encePairwiseOnDemand]: 42/57 looper letters, 126 selfloop transitions, 40 changer transitions 4/184 dead transitions. [2024-06-27 18:37:46,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 184 transitions, 1225 flow [2024-06-27 18:37:46,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 18:37:46,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 18:37:46,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 280 transitions. [2024-06-27 18:37:46,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6140350877192983 [2024-06-27 18:37:46,292 INFO L175 Difference]: Start difference. First operand has 84 places, 90 transitions, 481 flow. Second operand 8 states and 280 transitions. [2024-06-27 18:37:46,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 184 transitions, 1225 flow [2024-06-27 18:37:46,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 184 transitions, 1193 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 18:37:46,522 INFO L231 Difference]: Finished difference. Result has 92 places, 103 transitions, 684 flow [2024-06-27 18:37:46,522 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=684, PETRI_PLACES=92, PETRI_TRANSITIONS=103} [2024-06-27 18:37:46,522 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 27 predicate places. [2024-06-27 18:37:46,522 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 103 transitions, 684 flow [2024-06-27 18:37:46,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 8 states have internal predecessors, (148), 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 18:37:46,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:46,523 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:46,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-27 18:37:46,523 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:37:46,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:46,524 INFO L85 PathProgramCache]: Analyzing trace with hash -781994442, now seen corresponding path program 2 times [2024-06-27 18:37:46,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:46,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546899956] [2024-06-27 18:37:46,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:46,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:47,278 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 18:37:47,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:47,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546899956] [2024-06-27 18:37:47,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546899956] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:47,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:47,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 18:37:47,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180758474] [2024-06-27 18:37:47,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:47,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 18:37:47,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:47,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 18:37:47,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-27 18:37:47,413 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 18:37:47,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 103 transitions, 684 flow. Second operand has 8 states, 8 states have (on average 18.5) internal successors, (148), 8 states have internal predecessors, (148), 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 18:37:47,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:47,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 18:37:47,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:37:50,540 INFO L124 PetriNetUnfolderBase]: 21355/29329 cut-off events. [2024-06-27 18:37:50,540 INFO L125 PetriNetUnfolderBase]: For 133557/133609 co-relation queries the response was YES. [2024-06-27 18:37:50,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108061 conditions, 29329 events. 21355/29329 cut-off events. For 133557/133609 co-relation queries the response was YES. Maximal size of possible extension queue 1056. Compared 179333 event pairs, 6778 based on Foata normal form. 56/29345 useless extension candidates. Maximal degree in co-relation 108031. Up to 26579 conditions per place. [2024-06-27 18:37:50,764 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 116 selfloop transitions, 41 changer transitions 3/174 dead transitions. [2024-06-27 18:37:50,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 174 transitions, 1328 flow [2024-06-27 18:37:50,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 18:37:50,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 18:37:50,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 240 transitions. [2024-06-27 18:37:50,767 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6015037593984962 [2024-06-27 18:37:50,767 INFO L175 Difference]: Start difference. First operand has 92 places, 103 transitions, 684 flow. Second operand 7 states and 240 transitions. [2024-06-27 18:37:50,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 174 transitions, 1328 flow [2024-06-27 18:37:50,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 174 transitions, 1281 flow, removed 9 selfloop flow, removed 3 redundant places. [2024-06-27 18:37:50,876 INFO L231 Difference]: Finished difference. Result has 96 places, 107 transitions, 797 flow [2024-06-27 18:37:50,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=797, PETRI_PLACES=96, PETRI_TRANSITIONS=107} [2024-06-27 18:37:50,877 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, 31 predicate places. [2024-06-27 18:37:50,877 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 107 transitions, 797 flow [2024-06-27 18:37:50,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 8 states have internal predecessors, (148), 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 18:37:50,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:37:50,877 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:37:50,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-27 18:37:50,877 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 18:37:50,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:37:50,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1983822214, now seen corresponding path program 3 times [2024-06-27 18:37:50,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:37:50,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748224358] [2024-06-27 18:37:50,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:37:50,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:37:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:37:51,676 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 18:37:51,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:37:51,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748224358] [2024-06-27 18:37:51,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748224358] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:37:51,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:37:51,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 18:37:51,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106375105] [2024-06-27 18:37:51,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:37:51,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 18:37:51,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:37:51,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 18:37:51,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-27 18:37:51,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-06-27 18:37:51,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 107 transitions, 797 flow. Second operand has 8 states, 8 states have (on average 18.5) internal successors, (148), 8 states have internal predecessors, (148), 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 18:37:51,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:37:51,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-06-27 18:37:51,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand