./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix047_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb4cb34f 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/mix047_power.oepc_pso.oepc_rmo.oepc.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix047_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-eb4cb34-m [2024-06-21 19:05:32,822 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-21 19:05:32,883 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-21 19:05:32,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-21 19:05:32,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-21 19:05:32,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-21 19:05:32,910 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-21 19:05:32,911 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-21 19:05:32,911 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-21 19:05:32,914 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-21 19:05:32,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-21 19:05:32,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-21 19:05:32,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-21 19:05:32,917 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-21 19:05:32,917 INFO L153 SettingsManager]: * Use SBE=true [2024-06-21 19:05:32,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-21 19:05:32,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-21 19:05:32,917 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-21 19:05:32,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-21 19:05:32,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-21 19:05:32,918 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-21 19:05:32,918 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-21 19:05:32,918 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-21 19:05:32,919 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-21 19:05:32,919 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-21 19:05:32,919 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-21 19:05:32,919 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-21 19:05:32,919 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-21 19:05:32,920 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-21 19:05:32,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-21 19:05:32,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-21 19:05:32,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-21 19:05:32,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 19:05:32,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-21 19:05:32,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-21 19:05:32,922 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-21 19:05:32,922 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-21 19:05:32,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-21 19:05:32,922 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-21 19:05:32,922 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-21 19:05:32,922 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-21 19:05:32,923 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-21 19:05:32,923 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-21 19:05:32,923 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-21 19:05:33,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-21 19:05:33,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-21 19:05:33,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-21 19:05:33,149 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-21 19:05:33,150 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-21 19:05:33,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix047_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml [2024-06-21 19:05:33,275 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-21 19:05:33,275 INFO L274 PluginConnector]: CDTParser initialized [2024-06-21 19:05:33,276 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i [2024-06-21 19:05:34,227 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-21 19:05:34,419 INFO L384 CDTParser]: Found 1 translation units. [2024-06-21 19:05:34,419 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i [2024-06-21 19:05:34,431 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d131fff4d/db20aa446e0a427d8c20e58e4975cf81/FLAG1aa038658 [2024-06-21 19:05:34,441 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d131fff4d/db20aa446e0a427d8c20e58e4975cf81 [2024-06-21 19:05:34,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-21 19:05:34,442 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-21 19:05:34,443 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-21 19:05:34,443 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-21 19:05:34,447 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-21 19:05:34,447 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 07:05:33" (1/2) ... [2024-06-21 19:05:34,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@652d98ad and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 07:05:34, skipping insertion in model container [2024-06-21 19:05:34,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 07:05:33" (1/2) ... [2024-06-21 19:05:34,449 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2f27b16b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 07:05:34, skipping insertion in model container [2024-06-21 19:05:34,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 07:05:34" (2/2) ... [2024-06-21 19:05:34,449 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@652d98ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:05:34, skipping insertion in model container [2024-06-21 19:05:34,450 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 07:05:34" (2/2) ... [2024-06-21 19:05:34,450 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-21 19:05:34,486 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-21 19:05:34,487 INFO L97 edCorrectnessWitness]: Location invariant before [L875-L875] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b$mem_tmp >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff1 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$w_buff0) + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0_used >= 0LL) && (long long )a + (long long )b$r_buff0_thd1 >= 0LL) && (long long )a + (long long )b$w_buff0 >= 0LL) && (long long )a + (long long )b$w_buff0_used >= 0LL) && (long long )b + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b + (long long )b$w_buff0 >= 0LL) && (long long )b + (long long )b$w_buff0_used >= 0LL) && (long long )b$flush_delayed + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$mem_tmp + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )x >= 0LL) && (long long )b$r_buff0_thd1 + (long long )y >= 0LL) && (long long )b$r_buff0_thd1 + (long long )z >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0 + (long long )x >= 0LL) && (long long )b$w_buff0 + (long long )y >= 0LL) && (long long )b$w_buff0 + (long long )z >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0_used + (long long )x >= 0LL) && (long long )b$w_buff0_used + (long long )y >= 0LL) && (long long )b$w_buff0_used + (long long )z >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )b$w_buff0_used) - (long long )b$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EBX - (long long )b$mem_tmp >= 0LL) && (long long )b - (long long )b$mem_tmp >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff1 - (long long )b$w_buff1_used >= 0LL) [2024-06-21 19:05:34,487 INFO L97 edCorrectnessWitness]: Location invariant before [L872-L872] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b$mem_tmp >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff1 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$w_buff0) + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0_used >= 0LL) && (long long )a + (long long )b$r_buff0_thd1 >= 0LL) && (long long )a + (long long )b$w_buff0 >= 0LL) && (long long )a + (long long )b$w_buff0_used >= 0LL) && (long long )b + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b + (long long )b$w_buff0 >= 0LL) && (long long )b + (long long )b$w_buff0_used >= 0LL) && (long long )b$flush_delayed + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$mem_tmp + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )x >= 0LL) && (long long )b$r_buff0_thd1 + (long long )y >= 0LL) && (long long )b$r_buff0_thd1 + (long long )z >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0 + (long long )x >= 0LL) && (long long )b$w_buff0 + (long long )y >= 0LL) && (long long )b$w_buff0 + (long long )z >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0_used + (long long )x >= 0LL) && (long long )b$w_buff0_used + (long long )y >= 0LL) && (long long )b$w_buff0_used + (long long )z >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )b$w_buff0_used) - (long long )b$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EBX - (long long )b$mem_tmp >= 0LL) && (long long )b - (long long )b$mem_tmp >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff1 - (long long )b$w_buff1_used >= 0LL) [2024-06-21 19:05:34,487 INFO L97 edCorrectnessWitness]: Location invariant before [L874-L874] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b$mem_tmp >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff1 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$w_buff0) + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0_used >= 0LL) && (long long )a + (long long )b$r_buff0_thd1 >= 0LL) && (long long )a + (long long )b$w_buff0 >= 0LL) && (long long )a + (long long )b$w_buff0_used >= 0LL) && (long long )b + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b + (long long )b$w_buff0 >= 0LL) && (long long )b + (long long )b$w_buff0_used >= 0LL) && (long long )b$flush_delayed + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$mem_tmp + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )x >= 0LL) && (long long )b$r_buff0_thd1 + (long long )y >= 0LL) && (long long )b$r_buff0_thd1 + (long long )z >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0 + (long long )x >= 0LL) && (long long )b$w_buff0 + (long long )y >= 0LL) && (long long )b$w_buff0 + (long long )z >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0_used + (long long )x >= 0LL) && (long long )b$w_buff0_used + (long long )y >= 0LL) && (long long )b$w_buff0_used + (long long )z >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )b$w_buff0_used) - (long long )b$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EBX - (long long )b$mem_tmp >= 0LL) && (long long )b - (long long )b$mem_tmp >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff1 - (long long )b$w_buff1_used >= 0LL) [2024-06-21 19:05:34,488 INFO L97 edCorrectnessWitness]: Location invariant before [L870-L870] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b$mem_tmp >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$flush_delayed) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$r_buff0_thd1 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff0_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd0) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff1 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd2) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd3) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$r_buff1_thd4) + (long long )b$w_buff0_used >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0 >= 0LL) && (0LL - (long long )b$read_delayed) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff0_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$r_buff1_thd1) + (long long )b$w_buff0_used >= 0LL) && (1LL - (long long )b$w_buff0) + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )b$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )b$w_buff0_used >= 0LL) && (long long )a + (long long )b$r_buff0_thd1 >= 0LL) && (long long )a + (long long )b$w_buff0 >= 0LL) && (long long )a + (long long )b$w_buff0_used >= 0LL) && (long long )b + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b + (long long )b$w_buff0 >= 0LL) && (long long )b + (long long )b$w_buff0_used >= 0LL) && (long long )b$flush_delayed + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$flush_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$mem_tmp + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0 >= 0LL) && (long long )b$mem_tmp + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$r_buff0_thd1 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )x >= 0LL) && (long long )b$r_buff0_thd1 + (long long )y >= 0LL) && (long long )b$r_buff0_thd1 + (long long )z >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )b$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd1 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd2 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd3 + (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff1_thd4 + (long long )b$w_buff0_used >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0 >= 0LL) && (long long )b$read_delayed + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0 + (long long )x >= 0LL) && (long long )b$w_buff0 + (long long )y >= 0LL) && (long long )b$w_buff0 + (long long )z >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0_used + (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )b$w_buff0_used + (long long )x >= 0LL) && (long long )b$w_buff0_used + (long long )y >= 0LL) && (long long )b$w_buff0_used + (long long )z >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )b$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )b$w_buff0_used) - (long long )b$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EBX - (long long )b$mem_tmp >= 0LL) && (long long )b - (long long )b$mem_tmp >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff0_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd2 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd3 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$r_buff1_thd4 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$read_delayed >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff0_used >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff0_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1 >= 0LL) && (long long )b$r_buff1_thd1 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff0_used >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1 >= 0LL) && (long long )b$w_buff0 - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff0_used - (long long )b$w_buff1_used >= 0LL) && (long long )b$w_buff1 - (long long )b$w_buff1_used >= 0LL) [2024-06-21 19:05:34,488 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-21 19:05:34,488 INFO L106 edCorrectnessWitness]: ghost_update [L868-L868] multithreaded = 1; [2024-06-21 19:05:34,526 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-21 19:05:34,775 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 19:05:34,786 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-21 19:05:34,974 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 19:05:35,015 INFO L206 MainTranslator]: Completed translation [2024-06-21 19:05:35,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:05:35 WrapperNode [2024-06-21 19:05:35,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-21 19:05:35,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-21 19:05:35,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-21 19:05:35,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-21 19:05:35,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:05:35" (1/1) ... [2024-06-21 19:05:35,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:05:35" (1/1) ... [2024-06-21 19:05:35,129 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 138 [2024-06-21 19:05:35,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-21 19:05:35,130 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-21 19:05:35,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-21 19:05:35,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-21 19:05:35,142 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:05:35" (1/1) ... [2024-06-21 19:05:35,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:05:35" (1/1) ... [2024-06-21 19:05:35,161 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:05:35" (1/1) ... [2024-06-21 19:05:35,189 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]. [2024-06-21 19:05:35,189 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:05:35" (1/1) ... [2024-06-21 19:05:35,189 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:05:35" (1/1) ... [2024-06-21 19:05:35,209 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:05:35" (1/1) ... [2024-06-21 19:05:35,211 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:05:35" (1/1) ... [2024-06-21 19:05:35,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:05:35" (1/1) ... [2024-06-21 19:05:35,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:05:35" (1/1) ... [2024-06-21 19:05:35,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-21 19:05:35,234 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-21 19:05:35,234 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-21 19:05:35,234 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-21 19:05:35,235 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:05:35" (1/1) ... [2024-06-21 19:05:35,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 19:05:35,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-21 19:05:35,261 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) [2024-06-21 19:05:35,271 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 [2024-06-21 19:05:35,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-21 19:05:35,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-21 19:05:35,296 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-21 19:05:35,297 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-21 19:05:35,297 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-21 19:05:35,297 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-21 19:05:35,297 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-21 19:05:35,297 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-21 19:05:35,298 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-21 19:05:35,298 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-21 19:05:35,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-21 19:05:35,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-21 19:05:35,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-21 19:05:35,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-21 19:05:35,300 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-21 19:05:35,416 INFO L244 CfgBuilder]: Building ICFG [2024-06-21 19:05:35,418 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-21 19:05:36,035 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-21 19:05:36,035 INFO L293 CfgBuilder]: Performing block encoding [2024-06-21 19:05:36,197 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-21 19:05:36,198 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-21 19:05:36,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 07:05:36 BoogieIcfgContainer [2024-06-21 19:05:36,200 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-21 19:05:36,202 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-21 19:05:36,202 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-21 19:05:36,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-21 19:05:36,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 07:05:33" (1/4) ... [2024-06-21 19:05:36,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303b7e17 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 21.06 07:05:36, skipping insertion in model container [2024-06-21 19:05:36,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 07:05:34" (2/4) ... [2024-06-21 19:05:36,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303b7e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 07:05:36, skipping insertion in model container [2024-06-21 19:05:36,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:05:35" (3/4) ... [2024-06-21 19:05:36,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303b7e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 07:05:36, skipping insertion in model container [2024-06-21 19:05:36,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 07:05:36" (4/4) ... [2024-06-21 19:05:36,210 INFO L112 eAbstractionObserver]: Analyzing ICFG mix047_power.oepc_pso.oepc_rmo.oepc.i [2024-06-21 19:05:36,223 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-21 19:05:36,223 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-21 19:05:36,223 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-21 19:05:36,298 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-21 19:05:36,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 53 transitions, 122 flow [2024-06-21 19:05:36,362 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2024-06-21 19:05:36,362 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-21 19:05:36,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 49 events. 0/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-21 19:05:36,364 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 53 transitions, 122 flow [2024-06-21 19:05:36,367 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 43 transitions, 98 flow [2024-06-21 19:05:36,378 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-21 19:05:36,402 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;@45b71842, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-21 19:05:36,402 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-21 19:05:36,407 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-21 19:05:36,408 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-21 19:05:36,408 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-21 19:05:36,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:05:36,408 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-21 19:05:36,409 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:05:36,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:05:36,429 INFO L85 PathProgramCache]: Analyzing trace with hash 408044697, now seen corresponding path program 1 times [2024-06-21 19:05:36,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:05:36,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771301354] [2024-06-21 19:05:36,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:05:36,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:05:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:05:38,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:05:38,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:05:38,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771301354] [2024-06-21 19:05:38,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771301354] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:05:38,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:05:38,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-21 19:05:38,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744051230] [2024-06-21 19:05:38,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:05:38,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-21 19:05:38,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:05:38,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-21 19:05:38,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-21 19:05:38,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 53 [2024-06-21 19:05:38,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 43 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-06-21 19:05:38,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:05:38,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 53 [2024-06-21 19:05:38,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:05:41,031 INFO L124 PetriNetUnfolderBase]: 16127/22129 cut-off events. [2024-06-21 19:05:41,031 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2024-06-21 19:05:41,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44345 conditions, 22129 events. 16127/22129 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 699. Compared 120360 event pairs, 12777 based on Foata normal form. 1/21659 useless extension candidates. Maximal degree in co-relation 44332. Up to 21681 conditions per place. [2024-06-21 19:05:41,164 INFO L140 encePairwiseOnDemand]: 44/53 looper letters, 46 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2024-06-21 19:05:41,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 57 transitions, 237 flow [2024-06-21 19:05:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 19:05:41,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 19:05:41,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2024-06-21 19:05:41,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5911949685534591 [2024-06-21 19:05:41,176 INFO L175 Difference]: Start difference. First operand has 56 places, 43 transitions, 98 flow. Second operand 3 states and 94 transitions. [2024-06-21 19:05:41,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 57 transitions, 237 flow [2024-06-21 19:05:41,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 57 transitions, 230 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-21 19:05:41,184 INFO L231 Difference]: Finished difference. Result has 55 places, 47 transitions, 133 flow [2024-06-21 19:05:41,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=55, PETRI_TRANSITIONS=47} [2024-06-21 19:05:41,188 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places. [2024-06-21 19:05:41,189 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 47 transitions, 133 flow [2024-06-21 19:05:41,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-06-21 19:05:41,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:05:41,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:05:41,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-21 19:05:41,190 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:05:41,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:05:41,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1289470774, now seen corresponding path program 1 times [2024-06-21 19:05:41,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:05:41,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902438235] [2024-06-21 19:05:41,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:05:41,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:05:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:05:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:05:42,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:05:42,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902438235] [2024-06-21 19:05:42,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902438235] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:05:42,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:05:42,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-21 19:05:42,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372194735] [2024-06-21 19:05:42,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:05:42,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-21 19:05:42,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:05:42,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-21 19:05:42,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-21 19:05:42,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 53 [2024-06-21 19:05:42,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 47 transitions, 133 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-06-21 19:05:42,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:05:42,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 53 [2024-06-21 19:05:42,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:05:45,112 INFO L124 PetriNetUnfolderBase]: 16117/22115 cut-off events. [2024-06-21 19:05:45,113 INFO L125 PetriNetUnfolderBase]: For 3802/3802 co-relation queries the response was YES. [2024-06-21 19:05:45,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49488 conditions, 22115 events. 16117/22115 cut-off events. For 3802/3802 co-relation queries the response was YES. Maximal size of possible extension queue 699. Compared 120238 event pairs, 11693 based on Foata normal form. 4/21903 useless extension candidates. Maximal degree in co-relation 49476. Up to 21646 conditions per place. [2024-06-21 19:05:45,233 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 56 selfloop transitions, 9 changer transitions 0/71 dead transitions. [2024-06-21 19:05:45,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 71 transitions, 329 flow [2024-06-21 19:05:45,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-21 19:05:45,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-21 19:05:45,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 121 transitions. [2024-06-21 19:05:45,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5707547169811321 [2024-06-21 19:05:45,236 INFO L175 Difference]: Start difference. First operand has 55 places, 47 transitions, 133 flow. Second operand 4 states and 121 transitions. [2024-06-21 19:05:45,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 71 transitions, 329 flow [2024-06-21 19:05:45,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 71 transitions, 324 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-21 19:05:45,240 INFO L231 Difference]: Finished difference. Result has 58 places, 51 transitions, 181 flow [2024-06-21 19:05:45,240 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=181, PETRI_PLACES=58, PETRI_TRANSITIONS=51} [2024-06-21 19:05:45,241 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 2 predicate places. [2024-06-21 19:05:45,241 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 181 flow [2024-06-21 19:05:45,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-06-21 19:05:45,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:05:45,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:05:45,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-21 19:05:45,244 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:05:45,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:05:45,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1318889978, now seen corresponding path program 1 times [2024-06-21 19:05:45,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:05:45,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142668742] [2024-06-21 19:05:45,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:05:45,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:05:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:05:46,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:05:46,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:05:46,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142668742] [2024-06-21 19:05:46,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142668742] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:05:46,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:05:46,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 19:05:46,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455336242] [2024-06-21 19:05:46,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:05:46,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 19:05:46,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:05:46,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 19:05:46,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-21 19:05:46,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 53 [2024-06-21 19:05:46,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 181 flow. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-06-21 19:05:46,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:05:46,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 53 [2024-06-21 19:05:46,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:05:49,246 INFO L124 PetriNetUnfolderBase]: 16135/22172 cut-off events. [2024-06-21 19:05:49,246 INFO L125 PetriNetUnfolderBase]: For 10985/10985 co-relation queries the response was YES. [2024-06-21 19:05:49,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54733 conditions, 22172 events. 16135/22172 cut-off events. For 10985/10985 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 120789 event pairs, 9888 based on Foata normal form. 7/21993 useless extension candidates. Maximal degree in co-relation 54719. Up to 21567 conditions per place. [2024-06-21 19:05:49,349 INFO L140 encePairwiseOnDemand]: 41/53 looper letters, 74 selfloop transitions, 21 changer transitions 0/101 dead transitions. [2024-06-21 19:05:49,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 101 transitions, 545 flow [2024-06-21 19:05:49,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-21 19:05:49,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-21 19:05:49,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2024-06-21 19:05:49,351 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5962264150943396 [2024-06-21 19:05:49,351 INFO L175 Difference]: Start difference. First operand has 58 places, 51 transitions, 181 flow. Second operand 5 states and 158 transitions. [2024-06-21 19:05:49,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 101 transitions, 545 flow [2024-06-21 19:05:49,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 101 transitions, 526 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-06-21 19:05:49,356 INFO L231 Difference]: Finished difference. Result has 63 places, 65 transitions, 312 flow [2024-06-21 19:05:49,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=312, PETRI_PLACES=63, PETRI_TRANSITIONS=65} [2024-06-21 19:05:49,357 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 7 predicate places. [2024-06-21 19:05:49,357 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 65 transitions, 312 flow [2024-06-21 19:05:49,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-06-21 19:05:49,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:05:49,357 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:05:49,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-21 19:05:49,358 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:05:49,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:05:49,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1759889623, now seen corresponding path program 1 times [2024-06-21 19:05:49,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:05:49,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947445529] [2024-06-21 19:05:49,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:05:49,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:05:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:05:50,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:05:50,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:05:50,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947445529] [2024-06-21 19:05:50,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947445529] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:05:50,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:05:50,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 19:05:50,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16852207] [2024-06-21 19:05:50,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:05:50,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 19:05:50,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:05:50,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 19:05:50,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-21 19:05:50,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 53 [2024-06-21 19:05:50,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 65 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 19:05:50,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:05:50,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 53 [2024-06-21 19:05:50,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:05:53,641 INFO L124 PetriNetUnfolderBase]: 16153/22197 cut-off events. [2024-06-21 19:05:53,642 INFO L125 PetriNetUnfolderBase]: For 25865/25869 co-relation queries the response was YES. [2024-06-21 19:05:53,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62859 conditions, 22197 events. 16153/22197 cut-off events. For 25865/25869 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 120968 event pairs, 8804 based on Foata normal form. 11/22022 useless extension candidates. Maximal degree in co-relation 62842. Up to 21553 conditions per place. [2024-06-21 19:05:53,760 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 84 selfloop transitions, 26 changer transitions 0/116 dead transitions. [2024-06-21 19:05:53,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 116 transitions, 714 flow [2024-06-21 19:05:53,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 19:05:53,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 19:05:53,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 186 transitions. [2024-06-21 19:05:53,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5849056603773585 [2024-06-21 19:05:53,763 INFO L175 Difference]: Start difference. First operand has 63 places, 65 transitions, 312 flow. Second operand 6 states and 186 transitions. [2024-06-21 19:05:53,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 116 transitions, 714 flow [2024-06-21 19:05:53,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 116 transitions, 702 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-21 19:05:53,770 INFO L231 Difference]: Finished difference. Result has 69 places, 70 transitions, 406 flow [2024-06-21 19:05:53,771 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=406, PETRI_PLACES=69, PETRI_TRANSITIONS=70} [2024-06-21 19:05:53,771 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 13 predicate places. [2024-06-21 19:05:53,771 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 70 transitions, 406 flow [2024-06-21 19:05:53,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 19:05:53,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:05:53,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:05:53,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-21 19:05:53,772 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:05:53,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:05:53,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1277994825, now seen corresponding path program 1 times [2024-06-21 19:05:53,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:05:53,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37945930] [2024-06-21 19:05:53,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:05:53,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:05:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:05:55,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:05:55,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:05:55,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37945930] [2024-06-21 19:05:55,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37945930] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:05:55,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:05:55,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 19:05:55,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90812917] [2024-06-21 19:05:55,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:05:55,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 19:05:55,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:05:55,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 19:05:55,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-21 19:05:55,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 53 [2024-06-21 19:05:55,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 70 transitions, 406 flow. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 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) [2024-06-21 19:05:55,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:05:55,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 53 [2024-06-21 19:05:55,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:05:57,768 INFO L124 PetriNetUnfolderBase]: 16182/22240 cut-off events. [2024-06-21 19:05:57,768 INFO L125 PetriNetUnfolderBase]: For 40949/40953 co-relation queries the response was YES. [2024-06-21 19:05:57,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69172 conditions, 22240 events. 16182/22240 cut-off events. For 40949/40953 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 121392 event pairs, 7559 based on Foata normal form. 18/22072 useless extension candidates. Maximal degree in co-relation 69152. Up to 21518 conditions per place. [2024-06-21 19:05:57,910 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 91 selfloop transitions, 30 changer transitions 0/127 dead transitions. [2024-06-21 19:05:57,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 127 transitions, 858 flow [2024-06-21 19:05:57,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 19:05:57,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 19:05:57,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 210 transitions. [2024-06-21 19:05:57,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5660377358490566 [2024-06-21 19:05:57,912 INFO L175 Difference]: Start difference. First operand has 69 places, 70 transitions, 406 flow. Second operand 7 states and 210 transitions. [2024-06-21 19:05:57,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 127 transitions, 858 flow [2024-06-21 19:05:57,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 127 transitions, 792 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-06-21 19:05:57,926 INFO L231 Difference]: Finished difference. Result has 71 places, 73 transitions, 445 flow [2024-06-21 19:05:57,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=445, PETRI_PLACES=71, PETRI_TRANSITIONS=73} [2024-06-21 19:05:57,929 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 15 predicate places. [2024-06-21 19:05:57,929 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 73 transitions, 445 flow [2024-06-21 19:05:57,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 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) [2024-06-21 19:05:57,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:05:57,930 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:05:57,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-21 19:05:57,930 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:05:57,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:05:57,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1955045277, now seen corresponding path program 1 times [2024-06-21 19:05:57,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:05:57,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881754818] [2024-06-21 19:05:57,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:05:57,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:05:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:05:59,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:05:59,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:05:59,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881754818] [2024-06-21 19:05:59,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881754818] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:05:59,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:05:59,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 19:05:59,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95626771] [2024-06-21 19:05:59,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:05:59,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 19:05:59,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:05:59,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 19:05:59,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-21 19:05:59,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-21 19:05:59,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 73 transitions, 445 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 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) [2024-06-21 19:05:59,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:05:59,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-21 19:05:59,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:06:02,162 INFO L124 PetriNetUnfolderBase]: 16173/22339 cut-off events. [2024-06-21 19:06:02,162 INFO L125 PetriNetUnfolderBase]: For 62222/62222 co-relation queries the response was YES. [2024-06-21 19:06:02,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74243 conditions, 22339 events. 16173/22339 cut-off events. For 62222/62222 co-relation queries the response was YES. Maximal size of possible extension queue 700. Compared 123636 event pairs, 10635 based on Foata normal form. 3/22126 useless extension candidates. Maximal degree in co-relation 74221. Up to 21733 conditions per place. [2024-06-21 19:06:02,259 INFO L140 encePairwiseOnDemand]: 42/53 looper letters, 74 selfloop transitions, 12 changer transitions 0/91 dead transitions. [2024-06-21 19:06:02,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 91 transitions, 673 flow [2024-06-21 19:06:02,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-21 19:06:02,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-21 19:06:02,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 121 transitions. [2024-06-21 19:06:02,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45660377358490567 [2024-06-21 19:06:02,264 INFO L175 Difference]: Start difference. First operand has 71 places, 73 transitions, 445 flow. Second operand 5 states and 121 transitions. [2024-06-21 19:06:02,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 91 transitions, 673 flow [2024-06-21 19:06:02,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 91 transitions, 584 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-06-21 19:06:02,275 INFO L231 Difference]: Finished difference. Result has 72 places, 75 transitions, 412 flow [2024-06-21 19:06:02,275 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=412, PETRI_PLACES=72, PETRI_TRANSITIONS=75} [2024-06-21 19:06:02,278 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 16 predicate places. [2024-06-21 19:06:02,278 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 75 transitions, 412 flow [2024-06-21 19:06:02,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 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) [2024-06-21 19:06:02,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:06:02,278 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:06:02,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-21 19:06:02,279 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:06:02,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:06:02,279 INFO L85 PathProgramCache]: Analyzing trace with hash 443622227, now seen corresponding path program 1 times [2024-06-21 19:06:02,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:06:02,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765254663] [2024-06-21 19:06:02,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:06:02,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:06:02,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:06:04,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:06:04,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:06:04,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765254663] [2024-06-21 19:06:04,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765254663] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:06:04,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:06:04,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 19:06:04,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991809809] [2024-06-21 19:06:04,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:06:04,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 19:06:04,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:06:04,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 19:06:04,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-21 19:06:04,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-21 19:06:04,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 75 transitions, 412 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2024-06-21 19:06:04,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:06:04,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-21 19:06:04,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:06:07,366 INFO L124 PetriNetUnfolderBase]: 16197/22345 cut-off events. [2024-06-21 19:06:07,366 INFO L125 PetriNetUnfolderBase]: For 71297/71297 co-relation queries the response was YES. [2024-06-21 19:06:07,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75553 conditions, 22345 events. 16197/22345 cut-off events. For 71297/71297 co-relation queries the response was YES. Maximal size of possible extension queue 696. Compared 123319 event pairs, 10192 based on Foata normal form. 10/22144 useless extension candidates. Maximal degree in co-relation 75527. Up to 21655 conditions per place. [2024-06-21 19:06:07,537 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 89 selfloop transitions, 24 changer transitions 0/118 dead transitions. [2024-06-21 19:06:07,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 118 transitions, 854 flow [2024-06-21 19:06:07,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 19:06:07,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 19:06:07,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2024-06-21 19:06:07,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4811320754716981 [2024-06-21 19:06:07,539 INFO L175 Difference]: Start difference. First operand has 72 places, 75 transitions, 412 flow. Second operand 6 states and 153 transitions. [2024-06-21 19:06:07,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 118 transitions, 854 flow [2024-06-21 19:06:07,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 118 transitions, 830 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-21 19:06:07,596 INFO L231 Difference]: Finished difference. Result has 77 places, 89 transitions, 580 flow [2024-06-21 19:06:07,597 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=580, PETRI_PLACES=77, PETRI_TRANSITIONS=89} [2024-06-21 19:06:07,597 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 21 predicate places. [2024-06-21 19:06:07,598 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 89 transitions, 580 flow [2024-06-21 19:06:07,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2024-06-21 19:06:07,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:06:07,598 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:06:07,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-21 19:06:07,598 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:06:07,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:06:07,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1138377952, now seen corresponding path program 1 times [2024-06-21 19:06:07,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:06:07,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216652070] [2024-06-21 19:06:07,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:06:07,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:06:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:06:09,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:06:09,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:06:09,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216652070] [2024-06-21 19:06:09,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216652070] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:06:09,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:06:09,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 19:06:09,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736769612] [2024-06-21 19:06:09,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:06:09,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 19:06:09,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:06:09,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 19:06:09,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-21 19:06:09,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-21 19:06:09,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 89 transitions, 580 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2024-06-21 19:06:09,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:06:09,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-21 19:06:09,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:06:12,353 INFO L124 PetriNetUnfolderBase]: 16364/22484 cut-off events. [2024-06-21 19:06:12,353 INFO L125 PetriNetUnfolderBase]: For 94063/94087 co-relation queries the response was YES. [2024-06-21 19:06:12,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84346 conditions, 22484 events. 16364/22484 cut-off events. For 94063/94087 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 122033 event pairs, 8455 based on Foata normal form. 30/22313 useless extension candidates. Maximal degree in co-relation 84316. Up to 21796 conditions per place. [2024-06-21 19:06:12,506 INFO L140 encePairwiseOnDemand]: 38/53 looper letters, 102 selfloop transitions, 40 changer transitions 0/147 dead transitions. [2024-06-21 19:06:12,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 147 transitions, 1162 flow [2024-06-21 19:06:12,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 19:06:12,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 19:06:12,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 179 transitions. [2024-06-21 19:06:12,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48247978436657685 [2024-06-21 19:06:12,507 INFO L175 Difference]: Start difference. First operand has 77 places, 89 transitions, 580 flow. Second operand 7 states and 179 transitions. [2024-06-21 19:06:12,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 147 transitions, 1162 flow [2024-06-21 19:06:12,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 147 transitions, 1145 flow, removed 7 selfloop flow, removed 1 redundant places. [2024-06-21 19:06:12,560 INFO L231 Difference]: Finished difference. Result has 85 places, 109 transitions, 818 flow [2024-06-21 19:06:12,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=818, PETRI_PLACES=85, PETRI_TRANSITIONS=109} [2024-06-21 19:06:12,561 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 29 predicate places. [2024-06-21 19:06:12,561 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 109 transitions, 818 flow [2024-06-21 19:06:12,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2024-06-21 19:06:12,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:06:12,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:06:12,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-21 19:06:12,562 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:06:12,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:06:12,562 INFO L85 PathProgramCache]: Analyzing trace with hash 861667098, now seen corresponding path program 2 times [2024-06-21 19:06:12,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:06:12,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808533385] [2024-06-21 19:06:12,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:06:12,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:06:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:06:13,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:06:13,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:06:13,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808533385] [2024-06-21 19:06:13,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808533385] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:06:13,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:06:13,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 19:06:13,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3482378] [2024-06-21 19:06:13,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:06:13,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 19:06:13,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:06:13,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 19:06:13,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-21 19:06:13,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-21 19:06:13,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 109 transitions, 818 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2024-06-21 19:06:13,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:06:13,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-21 19:06:13,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:06:16,534 INFO L124 PetriNetUnfolderBase]: 16478/22749 cut-off events. [2024-06-21 19:06:16,534 INFO L125 PetriNetUnfolderBase]: For 113321/113329 co-relation queries the response was YES. [2024-06-21 19:06:16,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87042 conditions, 22749 events. 16478/22749 cut-off events. For 113321/113329 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 125283 event pairs, 10376 based on Foata normal form. 18/22566 useless extension candidates. Maximal degree in co-relation 87007. Up to 21957 conditions per place. [2024-06-21 19:06:16,695 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 106 selfloop transitions, 47 changer transitions 0/158 dead transitions. [2024-06-21 19:06:16,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 158 transitions, 1474 flow [2024-06-21 19:06:16,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 19:06:16,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 19:06:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 151 transitions. [2024-06-21 19:06:16,697 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4748427672955975 [2024-06-21 19:06:16,698 INFO L175 Difference]: Start difference. First operand has 85 places, 109 transitions, 818 flow. Second operand 6 states and 151 transitions. [2024-06-21 19:06:16,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 158 transitions, 1474 flow [2024-06-21 19:06:16,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 158 transitions, 1403 flow, removed 11 selfloop flow, removed 2 redundant places. [2024-06-21 19:06:16,802 INFO L231 Difference]: Finished difference. Result has 90 places, 130 transitions, 1129 flow [2024-06-21 19:06:16,803 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1129, PETRI_PLACES=90, PETRI_TRANSITIONS=130} [2024-06-21 19:06:16,803 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 34 predicate places. [2024-06-21 19:06:16,803 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 130 transitions, 1129 flow [2024-06-21 19:06:16,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2024-06-21 19:06:16,803 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:06:16,803 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:06:16,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-21 19:06:16,804 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:06:16,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:06:16,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1897851708, now seen corresponding path program 3 times [2024-06-21 19:06:16,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:06:16,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026252043] [2024-06-21 19:06:16,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:06:16,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:06:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:06:17,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:06:17,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:06:17,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026252043] [2024-06-21 19:06:17,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026252043] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:06:17,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:06:17,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 19:06:17,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258328536] [2024-06-21 19:06:17,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:06:17,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 19:06:17,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:06:18,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 19:06:18,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-21 19:06:18,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-21 19:06:18,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 130 transitions, 1129 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2024-06-21 19:06:18,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:06:18,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-21 19:06:18,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:06:20,829 INFO L124 PetriNetUnfolderBase]: 16436/22687 cut-off events. [2024-06-21 19:06:20,830 INFO L125 PetriNetUnfolderBase]: For 129027/129027 co-relation queries the response was YES. [2024-06-21 19:06:20,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88741 conditions, 22687 events. 16436/22687 cut-off events. For 129027/129027 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 124841 event pairs, 10383 based on Foata normal form. 5/22491 useless extension candidates. Maximal degree in co-relation 88703. Up to 22064 conditions per place. [2024-06-21 19:06:21,044 INFO L140 encePairwiseOnDemand]: 41/53 looper letters, 130 selfloop transitions, 19 changer transitions 0/154 dead transitions. [2024-06-21 19:06:21,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 154 transitions, 1507 flow [2024-06-21 19:06:21,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 19:06:21,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 19:06:21,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 143 transitions. [2024-06-21 19:06:21,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.449685534591195 [2024-06-21 19:06:21,045 INFO L175 Difference]: Start difference. First operand has 90 places, 130 transitions, 1129 flow. Second operand 6 states and 143 transitions. [2024-06-21 19:06:21,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 154 transitions, 1507 flow [2024-06-21 19:06:21,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 154 transitions, 1431 flow, removed 13 selfloop flow, removed 3 redundant places. [2024-06-21 19:06:21,207 INFO L231 Difference]: Finished difference. Result has 93 places, 130 transitions, 1105 flow [2024-06-21 19:06:21,207 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1053, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1105, PETRI_PLACES=93, PETRI_TRANSITIONS=130} [2024-06-21 19:06:21,208 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 37 predicate places. [2024-06-21 19:06:21,208 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 130 transitions, 1105 flow [2024-06-21 19:06:21,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2024-06-21 19:06:21,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:06:21,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:06:21,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-21 19:06:21,209 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:06:21,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:06:21,209 INFO L85 PathProgramCache]: Analyzing trace with hash -929976370, now seen corresponding path program 1 times [2024-06-21 19:06:21,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:06:21,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902663890] [2024-06-21 19:06:21,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:06:21,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:06:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:06:23,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:06:23,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:06:23,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902663890] [2024-06-21 19:06:23,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902663890] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:06:23,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:06:23,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 19:06:23,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964152167] [2024-06-21 19:06:23,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:06:23,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 19:06:23,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:06:23,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 19:06:23,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-21 19:06:23,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-21 19:06:23,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 130 transitions, 1105 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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) [2024-06-21 19:06:23,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:06:23,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-21 19:06:23,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:06:26,525 INFO L124 PetriNetUnfolderBase]: 16808/23047 cut-off events. [2024-06-21 19:06:26,525 INFO L125 PetriNetUnfolderBase]: For 141112/141134 co-relation queries the response was YES. [2024-06-21 19:06:26,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92320 conditions, 23047 events. 16808/23047 cut-off events. For 141112/141134 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 124551 event pairs, 7771 based on Foata normal form. 28/22884 useless extension candidates. Maximal degree in co-relation 92281. Up to 21677 conditions per place. [2024-06-21 19:06:26,700 INFO L140 encePairwiseOnDemand]: 36/53 looper letters, 143 selfloop transitions, 71 changer transitions 0/219 dead transitions. [2024-06-21 19:06:26,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 219 transitions, 2198 flow [2024-06-21 19:06:26,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 19:06:26,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 19:06:26,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 216 transitions. [2024-06-21 19:06:26,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5094339622641509 [2024-06-21 19:06:26,701 INFO L175 Difference]: Start difference. First operand has 93 places, 130 transitions, 1105 flow. Second operand 8 states and 216 transitions. [2024-06-21 19:06:26,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 219 transitions, 2198 flow [2024-06-21 19:06:26,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 219 transitions, 2105 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-06-21 19:06:26,849 INFO L231 Difference]: Finished difference. Result has 100 places, 160 transitions, 1506 flow [2024-06-21 19:06:26,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1022, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1506, PETRI_PLACES=100, PETRI_TRANSITIONS=160} [2024-06-21 19:06:26,850 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 44 predicate places. [2024-06-21 19:06:26,850 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 160 transitions, 1506 flow [2024-06-21 19:06:26,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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) [2024-06-21 19:06:26,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:06:26,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:06:26,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-21 19:06:26,851 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:06:26,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:06:26,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1904220970, now seen corresponding path program 2 times [2024-06-21 19:06:26,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:06:26,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432126802] [2024-06-21 19:06:26,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:06:26,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:06:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:06:28,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:06:28,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:06:28,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432126802] [2024-06-21 19:06:28,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432126802] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:06:28,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:06:28,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 19:06:28,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312810076] [2024-06-21 19:06:28,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:06:28,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 19:06:28,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:06:28,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 19:06:28,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-21 19:06:28,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-21 19:06:28,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 160 transitions, 1506 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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) [2024-06-21 19:06:28,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:06:28,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-21 19:06:28,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:06:31,560 INFO L124 PetriNetUnfolderBase]: 17443/23763 cut-off events. [2024-06-21 19:06:31,560 INFO L125 PetriNetUnfolderBase]: For 200655/200659 co-relation queries the response was YES. [2024-06-21 19:06:31,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108215 conditions, 23763 events. 17443/23763 cut-off events. For 200655/200659 co-relation queries the response was YES. Maximal size of possible extension queue 683. Compared 128358 event pairs, 9791 based on Foata normal form. 22/23642 useless extension candidates. Maximal degree in co-relation 108171. Up to 22458 conditions per place. [2024-06-21 19:06:31,763 INFO L140 encePairwiseOnDemand]: 38/53 looper letters, 155 selfloop transitions, 83 changer transitions 0/243 dead transitions. [2024-06-21 19:06:31,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 243 transitions, 2731 flow [2024-06-21 19:06:31,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 19:06:31,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 19:06:31,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 185 transitions. [2024-06-21 19:06:31,764 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49865229110512127 [2024-06-21 19:06:31,764 INFO L175 Difference]: Start difference. First operand has 100 places, 160 transitions, 1506 flow. Second operand 7 states and 185 transitions. [2024-06-21 19:06:31,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 243 transitions, 2731 flow [2024-06-21 19:06:31,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 243 transitions, 2621 flow, removed 54 selfloop flow, removed 1 redundant places. [2024-06-21 19:06:31,937 INFO L231 Difference]: Finished difference. Result has 108 places, 198 transitions, 2087 flow [2024-06-21 19:06:31,937 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1456, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2087, PETRI_PLACES=108, PETRI_TRANSITIONS=198} [2024-06-21 19:06:31,938 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 52 predicate places. [2024-06-21 19:06:31,938 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 198 transitions, 2087 flow [2024-06-21 19:06:31,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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) [2024-06-21 19:06:31,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:06:31,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:06:31,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-21 19:06:31,939 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:06:31,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:06:31,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1296137422, now seen corresponding path program 3 times [2024-06-21 19:06:31,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:06:31,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668480135] [2024-06-21 19:06:31,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:06:31,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:06:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:06:33,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:06:33,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:06:33,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668480135] [2024-06-21 19:06:33,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668480135] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:06:33,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:06:33,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 19:06:33,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617731187] [2024-06-21 19:06:33,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:06:33,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 19:06:33,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:06:33,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 19:06:33,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-21 19:06:33,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-21 19:06:33,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 198 transitions, 2087 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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) [2024-06-21 19:06:33,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:06:33,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-21 19:06:33,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:06:37,044 INFO L124 PetriNetUnfolderBase]: 17622/23989 cut-off events. [2024-06-21 19:06:37,045 INFO L125 PetriNetUnfolderBase]: For 250079/250081 co-relation queries the response was YES. [2024-06-21 19:06:37,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117627 conditions, 23989 events. 17622/23989 cut-off events. For 250079/250081 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 129325 event pairs, 9909 based on Foata normal form. 16/23852 useless extension candidates. Maximal degree in co-relation 117578. Up to 23314 conditions per place. [2024-06-21 19:06:37,278 INFO L140 encePairwiseOnDemand]: 38/53 looper letters, 217 selfloop transitions, 43 changer transitions 0/265 dead transitions. [2024-06-21 19:06:37,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 265 transitions, 3227 flow [2024-06-21 19:06:37,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 19:06:37,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 19:06:37,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 191 transitions. [2024-06-21 19:06:37,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45047169811320753 [2024-06-21 19:06:37,279 INFO L175 Difference]: Start difference. First operand has 108 places, 198 transitions, 2087 flow. Second operand 8 states and 191 transitions. [2024-06-21 19:06:37,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 265 transitions, 3227 flow [2024-06-21 19:06:37,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 265 transitions, 3178 flow, removed 23 selfloop flow, removed 1 redundant places. [2024-06-21 19:06:37,574 INFO L231 Difference]: Finished difference. Result has 116 places, 216 transitions, 2396 flow [2024-06-21 19:06:37,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2038, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2396, PETRI_PLACES=116, PETRI_TRANSITIONS=216} [2024-06-21 19:06:37,574 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 60 predicate places. [2024-06-21 19:06:37,575 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 216 transitions, 2396 flow [2024-06-21 19:06:37,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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) [2024-06-21 19:06:37,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:06:37,575 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:06:37,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-21 19:06:37,575 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:06:37,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:06:37,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1119246706, now seen corresponding path program 4 times [2024-06-21 19:06:37,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:06:37,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157164291] [2024-06-21 19:06:37,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:06:37,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:06:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:06:38,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:06:38,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:06:38,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157164291] [2024-06-21 19:06:38,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157164291] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:06:38,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:06:38,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 19:06:38,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923805191] [2024-06-21 19:06:38,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:06:38,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 19:06:38,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:06:38,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 19:06:38,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-21 19:06:38,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-21 19:06:38,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 216 transitions, 2396 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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) [2024-06-21 19:06:38,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:06:38,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-21 19:06:38,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:06:43,186 INFO L124 PetriNetUnfolderBase]: 17649/24023 cut-off events. [2024-06-21 19:06:43,186 INFO L125 PetriNetUnfolderBase]: For 297210/297212 co-relation queries the response was YES. [2024-06-21 19:06:43,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124985 conditions, 24023 events. 17649/24023 cut-off events. For 297210/297212 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 129336 event pairs, 9907 based on Foata normal form. 15/23885 useless extension candidates. Maximal degree in co-relation 124932. Up to 23554 conditions per place. [2024-06-21 19:06:43,377 INFO L140 encePairwiseOnDemand]: 38/53 looper letters, 227 selfloop transitions, 33 changer transitions 0/265 dead transitions. [2024-06-21 19:06:43,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 265 transitions, 3325 flow [2024-06-21 19:06:43,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 19:06:43,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 19:06:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 175 transitions. [2024-06-21 19:06:43,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4716981132075472 [2024-06-21 19:06:43,379 INFO L175 Difference]: Start difference. First operand has 116 places, 216 transitions, 2396 flow. Second operand 7 states and 175 transitions. [2024-06-21 19:06:43,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 265 transitions, 3325 flow [2024-06-21 19:06:43,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 265 transitions, 3187 flow, removed 45 selfloop flow, removed 5 redundant places. [2024-06-21 19:06:43,709 INFO L231 Difference]: Finished difference. Result has 119 places, 227 transitions, 2524 flow [2024-06-21 19:06:43,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2270, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2524, PETRI_PLACES=119, PETRI_TRANSITIONS=227} [2024-06-21 19:06:43,710 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 63 predicate places. [2024-06-21 19:06:43,710 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 227 transitions, 2524 flow [2024-06-21 19:06:43,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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) [2024-06-21 19:06:43,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:06:43,710 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:06:43,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-21 19:06:43,710 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:06:43,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:06:43,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1119255634, now seen corresponding path program 1 times [2024-06-21 19:06:43,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:06:43,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806023584] [2024-06-21 19:06:43,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:06:43,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:06:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:06:45,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:06:45,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:06:45,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806023584] [2024-06-21 19:06:45,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806023584] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:06:45,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:06:45,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 19:06:45,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545883191] [2024-06-21 19:06:45,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:06:45,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 19:06:45,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:06:45,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 19:06:45,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-21 19:06:45,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-21 19:06:45,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 227 transitions, 2524 flow. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 19:06:45,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:06:45,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-21 19:06:45,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:06:49,764 INFO L124 PetriNetUnfolderBase]: 17669/24050 cut-off events. [2024-06-21 19:06:49,765 INFO L125 PetriNetUnfolderBase]: For 324773/324775 co-relation queries the response was YES. [2024-06-21 19:06:49,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127420 conditions, 24050 events. 17669/24050 cut-off events. For 324773/324775 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 129555 event pairs, 9716 based on Foata normal form. 12/23909 useless extension candidates. Maximal degree in co-relation 127365. Up to 23554 conditions per place. [2024-06-21 19:06:49,927 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 226 selfloop transitions, 35 changer transitions 0/266 dead transitions. [2024-06-21 19:06:49,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 266 transitions, 3332 flow [2024-06-21 19:06:49,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 19:06:49,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 19:06:49,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 187 transitions. [2024-06-21 19:06:49,937 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4410377358490566 [2024-06-21 19:06:49,937 INFO L175 Difference]: Start difference. First operand has 119 places, 227 transitions, 2524 flow. Second operand 8 states and 187 transitions. [2024-06-21 19:06:49,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 266 transitions, 3332 flow [2024-06-21 19:06:50,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 266 transitions, 3240 flow, removed 28 selfloop flow, removed 3 redundant places. [2024-06-21 19:06:50,378 INFO L231 Difference]: Finished difference. Result has 124 places, 231 transitions, 2575 flow [2024-06-21 19:06:50,378 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2432, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2575, PETRI_PLACES=124, PETRI_TRANSITIONS=231} [2024-06-21 19:06:50,379 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 68 predicate places. [2024-06-21 19:06:50,379 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 231 transitions, 2575 flow [2024-06-21 19:06:50,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 19:06:50,379 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:06:50,379 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:06:50,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-21 19:06:50,379 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:06:50,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:06:50,380 INFO L85 PathProgramCache]: Analyzing trace with hash -64576247, now seen corresponding path program 1 times [2024-06-21 19:06:50,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:06:50,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986459905] [2024-06-21 19:06:50,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:06:50,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:06:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:06:51,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:06:51,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:06:51,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986459905] [2024-06-21 19:06:51,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986459905] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:06:51,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:06:51,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 19:06:51,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217176382] [2024-06-21 19:06:51,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:06:51,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 19:06:51,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:06:51,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 19:06:51,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-21 19:06:51,968 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-21 19:06:51,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 231 transitions, 2575 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 19:06:51,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:06:51,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-21 19:06:51,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand