./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 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/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-cde23df-m [2024-06-14 14:51:24,681 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:51:24,774 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:51:24,780 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:51:24,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:51:24,806 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:51:24,807 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:51:24,807 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:51:24,807 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:51:24,810 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:51:24,811 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:51:24,811 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:51:24,811 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:51:24,812 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:51:24,812 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:51:24,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:51:24,813 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:51:24,813 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:51:24,813 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:51:24,813 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:51:24,814 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:51:24,814 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:51:24,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:51:24,814 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:51:24,815 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:51:24,815 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:51:24,815 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:51:24,815 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:51:24,816 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:51:24,816 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:51:24,817 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:51:24,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:51:24,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:51:24,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:51:24,818 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:51:24,818 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:51:24,818 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:51:24,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:51:24,818 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:51:24,819 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:51:24,819 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:51:24,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:51:24,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:51:24,819 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:51:25,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:51:25,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:51:25,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:51:25,070 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:51:25,071 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:51:25,072 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.yml/witness.yml [2024-06-14 14:51:25,216 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:51:25,216 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:51:25,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2024-06-14 14:51:26,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:51:26,480 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:51:26,481 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2024-06-14 14:51:26,495 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26dbe127a/79dbdb56aa0b410d97af6f28a597e06f/FLAG388674e3c [2024-06-14 14:51:26,505 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26dbe127a/79dbdb56aa0b410d97af6f28a597e06f [2024-06-14 14:51:26,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:51:26,507 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:51:26,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:51:26,509 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:51:26,514 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:51:26,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:51:25" (1/2) ... [2024-06-14 14:51:26,515 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d6585bb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:51:26, skipping insertion in model container [2024-06-14 14:51:26,515 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:51:25" (1/2) ... [2024-06-14 14:51:26,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@60b8219c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:51:26, skipping insertion in model container [2024-06-14 14:51:26,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:51:26" (2/2) ... [2024-06-14 14:51:26,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d6585bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:51:26, skipping insertion in model container [2024-06-14 14:51:26,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:51:26" (2/2) ... [2024-06-14 14:51:26,518 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:51:26,589 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:51:26,591 INFO L97 edCorrectnessWitness]: Location invariant before [L841-L841] (((((((((((((((((((! multithreaded || (0 <= __unbuffered_p2_EAX && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || ((0 <= z$mem_tmp && z$mem_tmp <= 1) && (z$mem_tmp == 0 || z$mem_tmp == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff0_thd2 >= 0LL && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$read_delayed) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$read_delayed) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$w_buff0) + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p0_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )z$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )z$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )z$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$w_buff1 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice0 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice2 >= 0LL) && (long long )x + (long long )y >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )x + (long long )z$flush_delayed >= 0LL) && (long long )x + (long long )z$mem_tmp >= 0LL) && (long long )x + (long long )z$r_buff0_thd0 >= 0LL) && (long long )x + (long long )z$r_buff0_thd2 >= 0LL) && (long long )x + (long long )z$r_buff0_thd3 >= 0LL) && (long long )x + (long long )z$r_buff1_thd0 >= 0LL) && (long long )x + (long long )z$r_buff1_thd2 >= 0LL) && (long long )x + (long long )z$r_buff1_thd3 >= 0LL) && (long long )x + (long long )z$read_delayed >= 0LL) && (long long )x + (long long )z$w_buff0 >= 0LL) && (long long )x + (long long )z$w_buff1 >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )y + (long long )z$flush_delayed >= 0LL) && (long long )y + (long long )z$mem_tmp >= 0LL) && (long long )y + (long long )z$r_buff0_thd0 >= 0LL) && (long long )y + (long long )z$r_buff0_thd2 >= 0LL) && (long long )y + (long long )z$r_buff0_thd3 >= 0LL) && (long long )y + (long long )z$r_buff1_thd0 >= 0LL) && (long long )y + (long long )z$r_buff1_thd2 >= 0LL) && (long long )y + (long long )z$r_buff1_thd3 >= 0LL) && (long long )y + (long long )z$read_delayed >= 0LL) && (long long )y + (long long )z$w_buff0 >= 0LL) && (long long )y + (long long )z$w_buff1 >= 0LL) && (long long )z + (long long )z$flush_delayed >= 0LL) && (long long )z + (long long )z$mem_tmp >= 0LL) && (long long )z + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z + (long long )z$read_delayed >= 0LL) && (long long )z + (long long )z$w_buff0 >= 0LL) && (long long )z + (long long )z$w_buff1 >= 0LL) && (long long )z$flush_delayed + (long long )z$mem_tmp >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$flush_delayed + (long long )z$read_delayed >= 0LL) && (long long )z$flush_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$flush_delayed + (long long )z$w_buff1 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$mem_tmp + (long long )z$read_delayed >= 0LL) && (long long )z$mem_tmp + (long long )z$w_buff0 >= 0LL) && (long long )z$mem_tmp + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$w_buff1 >= 0LL) && (long long )z$read_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$read_delayed + (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 + (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$choice0 + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice0 + (long long )z$mem_tmp >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )z$read_delayed >= 0LL) && (long long )weak$$choice0 + (long long )z$w_buff0 >= 0LL) && (long long )weak$$choice0 + (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )weak$$choice2 >= 0LL) && (long long )weak$$choice2 + (long long )x >= 0LL) && (long long )weak$$choice2 + (long long )y >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (long long )weak$$choice2 + (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice2 + (long long )z$mem_tmp >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )z$read_delayed >= 0LL) && (long long )weak$$choice2 + (long long )z$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )x) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )x) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )x) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )x) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )y) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )y) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )y) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )y) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$read_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$read_delayed) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd2) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd3) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff1_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$read_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$read_delayed) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd1 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$w_buff0 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$r_buff1_thd1) - (long long )z$w_buff0 >= 0LL) && (2LL - (long long )z$r_buff1_thd1) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$w_buff0) - (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$read_delayed >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$read_delayed >= 0LL) && (long long )x - (long long )z$r_buff0_thd0 >= 0LL) && (long long )x - (long long )z$r_buff0_thd2 >= 0LL) && (long long )x - (long long )z$r_buff0_thd3 >= 0LL) && (long long )x - (long long )z$r_buff1_thd0 >= 0LL) && (long long )x - (long long )z$r_buff1_thd2 >= 0LL) && (long long )x - (long long )z$r_buff1_thd3 >= 0LL) && (long long )x - (long long )z$read_delayed >= 0LL) && (long long )y - (long long )z$r_buff0_thd0 >= 0LL) && (long long )y - (long long )z$r_buff0_thd2 >= 0LL) && (long long )y - (long long )z$r_buff0_thd3 >= 0LL) && (long long )y - (long long )z$r_buff1_thd0 >= 0LL) && (long long )y - (long long )z$r_buff1_thd2 >= 0LL) && (long long )y - (long long )z$r_buff1_thd3 >= 0LL) && (long long )y - (long long )z$read_delayed >= 0LL) && (long long )z - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z - (long long )z$read_delayed >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$flush_delayed - (long long )z$read_delayed >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$mem_tmp - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd2 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd3 - (long long )z$read_delayed >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )z$read_delayed >= 0LL) && (long long )weak$$choice2 - (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )z$read_delayed >= 0LL))) && (! multithreaded || ((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p0_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= x) && 0 <= y) && 0 <= z) && 0 <= z$mem_tmp) && 0 <= z$w_buff0) && 0 <= z$w_buff1) && __unbuffered_p0_EAX <= 1) && __unbuffered_p2_EBX <= 1) && x <= 1) && z <= 1) && z$mem_tmp <= 1) && z$w_buff0 <= 1) && z$w_buff1 <= 1) && z$flush_delayed == (_Bool)0) && z$r_buff0_thd0 == (_Bool)0) && z$r_buff0_thd2 == (_Bool)0) && z$r_buff0_thd3 == (_Bool)0) && z$r_buff1_thd0 == (_Bool)0) && z$r_buff1_thd2 == (_Bool)0) && z$r_buff1_thd3 == (_Bool)0) && z$read_delayed == (_Bool)0) && z$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (x == 0 || x == 1)) && (z == 0 || z == 1)) && (z$mem_tmp == 0 || z$mem_tmp == 1)) && (z$w_buff0 == 0 || z$w_buff0 == 1)) && (z$w_buff1 == 0 || z$w_buff1 == 1)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff1 && z$w_buff1 <= 1) && (z$w_buff1 == 0 || z$w_buff1 == 1)))) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff0 && z$w_buff0 <= 1) && (z$w_buff0 == 0 || z$w_buff0 == 1))) [2024-06-14 14:51:26,591 INFO L97 edCorrectnessWitness]: Location invariant before [L843-L843] (((((((((((((((((((! multithreaded || (0 <= __unbuffered_p2_EAX && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || ((0 <= z$mem_tmp && z$mem_tmp <= 1) && (z$mem_tmp == 0 || z$mem_tmp == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff0_thd2 >= 0LL && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$read_delayed) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$read_delayed) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$w_buff0) + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p0_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )z$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )z$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )z$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$w_buff1 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice0 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice2 >= 0LL) && (long long )x + (long long )y >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )x + (long long )z$flush_delayed >= 0LL) && (long long )x + (long long )z$mem_tmp >= 0LL) && (long long )x + (long long )z$r_buff0_thd0 >= 0LL) && (long long )x + (long long )z$r_buff0_thd2 >= 0LL) && (long long )x + (long long )z$r_buff0_thd3 >= 0LL) && (long long )x + (long long )z$r_buff1_thd0 >= 0LL) && (long long )x + (long long )z$r_buff1_thd2 >= 0LL) && (long long )x + (long long )z$r_buff1_thd3 >= 0LL) && (long long )x + (long long )z$read_delayed >= 0LL) && (long long )x + (long long )z$w_buff0 >= 0LL) && (long long )x + (long long )z$w_buff1 >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )y + (long long )z$flush_delayed >= 0LL) && (long long )y + (long long )z$mem_tmp >= 0LL) && (long long )y + (long long )z$r_buff0_thd0 >= 0LL) && (long long )y + (long long )z$r_buff0_thd2 >= 0LL) && (long long )y + (long long )z$r_buff0_thd3 >= 0LL) && (long long )y + (long long )z$r_buff1_thd0 >= 0LL) && (long long )y + (long long )z$r_buff1_thd2 >= 0LL) && (long long )y + (long long )z$r_buff1_thd3 >= 0LL) && (long long )y + (long long )z$read_delayed >= 0LL) && (long long )y + (long long )z$w_buff0 >= 0LL) && (long long )y + (long long )z$w_buff1 >= 0LL) && (long long )z + (long long )z$flush_delayed >= 0LL) && (long long )z + (long long )z$mem_tmp >= 0LL) && (long long )z + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z + (long long )z$read_delayed >= 0LL) && (long long )z + (long long )z$w_buff0 >= 0LL) && (long long )z + (long long )z$w_buff1 >= 0LL) && (long long )z$flush_delayed + (long long )z$mem_tmp >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$flush_delayed + (long long )z$read_delayed >= 0LL) && (long long )z$flush_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$flush_delayed + (long long )z$w_buff1 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$mem_tmp + (long long )z$read_delayed >= 0LL) && (long long )z$mem_tmp + (long long )z$w_buff0 >= 0LL) && (long long )z$mem_tmp + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$w_buff1 >= 0LL) && (long long )z$read_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$read_delayed + (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 + (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$choice0 + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice0 + (long long )z$mem_tmp >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )z$read_delayed >= 0LL) && (long long )weak$$choice0 + (long long )z$w_buff0 >= 0LL) && (long long )weak$$choice0 + (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )weak$$choice2 >= 0LL) && (long long )weak$$choice2 + (long long )x >= 0LL) && (long long )weak$$choice2 + (long long )y >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (long long )weak$$choice2 + (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice2 + (long long )z$mem_tmp >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )z$read_delayed >= 0LL) && (long long )weak$$choice2 + (long long )z$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )x) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )x) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )x) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )x) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )y) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )y) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )y) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )y) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$read_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$read_delayed) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd2) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd3) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff1_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$read_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$read_delayed) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd1 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$w_buff0 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$r_buff1_thd1) - (long long )z$w_buff0 >= 0LL) && (2LL - (long long )z$r_buff1_thd1) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$w_buff0) - (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$read_delayed >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$read_delayed >= 0LL) && (long long )x - (long long )z$r_buff0_thd0 >= 0LL) && (long long )x - (long long )z$r_buff0_thd2 >= 0LL) && (long long )x - (long long )z$r_buff0_thd3 >= 0LL) && (long long )x - (long long )z$r_buff1_thd0 >= 0LL) && (long long )x - (long long )z$r_buff1_thd2 >= 0LL) && (long long )x - (long long )z$r_buff1_thd3 >= 0LL) && (long long )x - (long long )z$read_delayed >= 0LL) && (long long )y - (long long )z$r_buff0_thd0 >= 0LL) && (long long )y - (long long )z$r_buff0_thd2 >= 0LL) && (long long )y - (long long )z$r_buff0_thd3 >= 0LL) && (long long )y - (long long )z$r_buff1_thd0 >= 0LL) && (long long )y - (long long )z$r_buff1_thd2 >= 0LL) && (long long )y - (long long )z$r_buff1_thd3 >= 0LL) && (long long )y - (long long )z$read_delayed >= 0LL) && (long long )z - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z - (long long )z$read_delayed >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$flush_delayed - (long long )z$read_delayed >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$mem_tmp - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd2 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd3 - (long long )z$read_delayed >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )z$read_delayed >= 0LL) && (long long )weak$$choice2 - (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )z$read_delayed >= 0LL))) && (! multithreaded || ((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p0_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= x) && 0 <= y) && 0 <= z) && 0 <= z$mem_tmp) && 0 <= z$w_buff0) && 0 <= z$w_buff1) && __unbuffered_p0_EAX <= 1) && __unbuffered_p2_EBX <= 1) && x <= 1) && z <= 1) && z$mem_tmp <= 1) && z$w_buff0 <= 1) && z$w_buff1 <= 1) && z$flush_delayed == (_Bool)0) && z$r_buff0_thd0 == (_Bool)0) && z$r_buff0_thd2 == (_Bool)0) && z$r_buff0_thd3 == (_Bool)0) && z$r_buff1_thd0 == (_Bool)0) && z$r_buff1_thd2 == (_Bool)0) && z$r_buff1_thd3 == (_Bool)0) && z$read_delayed == (_Bool)0) && z$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (x == 0 || x == 1)) && (z == 0 || z == 1)) && (z$mem_tmp == 0 || z$mem_tmp == 1)) && (z$w_buff0 == 0 || z$w_buff0 == 1)) && (z$w_buff1 == 0 || z$w_buff1 == 1)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff1 && z$w_buff1 <= 1) && (z$w_buff1 == 0 || z$w_buff1 == 1)))) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff0 && z$w_buff0 <= 1) && (z$w_buff0 == 0 || z$w_buff0 == 1))) [2024-06-14 14:51:26,592 INFO L97 edCorrectnessWitness]: Location invariant before [L844-L844] (((((((((((((((((((! multithreaded || (0 <= __unbuffered_p2_EAX && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || ((0 <= z$mem_tmp && z$mem_tmp <= 1) && (z$mem_tmp == 0 || z$mem_tmp == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff0_thd2 >= 0LL && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$read_delayed) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$read_delayed) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$w_buff0) + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p0_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )z$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )z$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )z$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$w_buff1 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice0 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice2 >= 0LL) && (long long )x + (long long )y >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )x + (long long )z$flush_delayed >= 0LL) && (long long )x + (long long )z$mem_tmp >= 0LL) && (long long )x + (long long )z$r_buff0_thd0 >= 0LL) && (long long )x + (long long )z$r_buff0_thd2 >= 0LL) && (long long )x + (long long )z$r_buff0_thd3 >= 0LL) && (long long )x + (long long )z$r_buff1_thd0 >= 0LL) && (long long )x + (long long )z$r_buff1_thd2 >= 0LL) && (long long )x + (long long )z$r_buff1_thd3 >= 0LL) && (long long )x + (long long )z$read_delayed >= 0LL) && (long long )x + (long long )z$w_buff0 >= 0LL) && (long long )x + (long long )z$w_buff1 >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )y + (long long )z$flush_delayed >= 0LL) && (long long )y + (long long )z$mem_tmp >= 0LL) && (long long )y + (long long )z$r_buff0_thd0 >= 0LL) && (long long )y + (long long )z$r_buff0_thd2 >= 0LL) && (long long )y + (long long )z$r_buff0_thd3 >= 0LL) && (long long )y + (long long )z$r_buff1_thd0 >= 0LL) && (long long )y + (long long )z$r_buff1_thd2 >= 0LL) && (long long )y + (long long )z$r_buff1_thd3 >= 0LL) && (long long )y + (long long )z$read_delayed >= 0LL) && (long long )y + (long long )z$w_buff0 >= 0LL) && (long long )y + (long long )z$w_buff1 >= 0LL) && (long long )z + (long long )z$flush_delayed >= 0LL) && (long long )z + (long long )z$mem_tmp >= 0LL) && (long long )z + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z + (long long )z$read_delayed >= 0LL) && (long long )z + (long long )z$w_buff0 >= 0LL) && (long long )z + (long long )z$w_buff1 >= 0LL) && (long long )z$flush_delayed + (long long )z$mem_tmp >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$flush_delayed + (long long )z$read_delayed >= 0LL) && (long long )z$flush_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$flush_delayed + (long long )z$w_buff1 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$mem_tmp + (long long )z$read_delayed >= 0LL) && (long long )z$mem_tmp + (long long )z$w_buff0 >= 0LL) && (long long )z$mem_tmp + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$w_buff1 >= 0LL) && (long long )z$read_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$read_delayed + (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 + (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$choice0 + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice0 + (long long )z$mem_tmp >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )z$read_delayed >= 0LL) && (long long )weak$$choice0 + (long long )z$w_buff0 >= 0LL) && (long long )weak$$choice0 + (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )weak$$choice2 >= 0LL) && (long long )weak$$choice2 + (long long )x >= 0LL) && (long long )weak$$choice2 + (long long )y >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (long long )weak$$choice2 + (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice2 + (long long )z$mem_tmp >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )z$read_delayed >= 0LL) && (long long )weak$$choice2 + (long long )z$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )x) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )x) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )x) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )x) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )y) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )y) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )y) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )y) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$read_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$read_delayed) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd2) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd3) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff1_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$read_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$read_delayed) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd1 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$w_buff0 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$r_buff1_thd1) - (long long )z$w_buff0 >= 0LL) && (2LL - (long long )z$r_buff1_thd1) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$w_buff0) - (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$read_delayed >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$read_delayed >= 0LL) && (long long )x - (long long )z$r_buff0_thd0 >= 0LL) && (long long )x - (long long )z$r_buff0_thd2 >= 0LL) && (long long )x - (long long )z$r_buff0_thd3 >= 0LL) && (long long )x - (long long )z$r_buff1_thd0 >= 0LL) && (long long )x - (long long )z$r_buff1_thd2 >= 0LL) && (long long )x - (long long )z$r_buff1_thd3 >= 0LL) && (long long )x - (long long )z$read_delayed >= 0LL) && (long long )y - (long long )z$r_buff0_thd0 >= 0LL) && (long long )y - (long long )z$r_buff0_thd2 >= 0LL) && (long long )y - (long long )z$r_buff0_thd3 >= 0LL) && (long long )y - (long long )z$r_buff1_thd0 >= 0LL) && (long long )y - (long long )z$r_buff1_thd2 >= 0LL) && (long long )y - (long long )z$r_buff1_thd3 >= 0LL) && (long long )y - (long long )z$read_delayed >= 0LL) && (long long )z - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z - (long long )z$read_delayed >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$flush_delayed - (long long )z$read_delayed >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$mem_tmp - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd2 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd3 - (long long )z$read_delayed >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )z$read_delayed >= 0LL) && (long long )weak$$choice2 - (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )z$read_delayed >= 0LL))) && (! multithreaded || ((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p0_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= x) && 0 <= y) && 0 <= z) && 0 <= z$mem_tmp) && 0 <= z$w_buff0) && 0 <= z$w_buff1) && __unbuffered_p0_EAX <= 1) && __unbuffered_p2_EBX <= 1) && x <= 1) && z <= 1) && z$mem_tmp <= 1) && z$w_buff0 <= 1) && z$w_buff1 <= 1) && z$flush_delayed == (_Bool)0) && z$r_buff0_thd0 == (_Bool)0) && z$r_buff0_thd2 == (_Bool)0) && z$r_buff0_thd3 == (_Bool)0) && z$r_buff1_thd0 == (_Bool)0) && z$r_buff1_thd2 == (_Bool)0) && z$r_buff1_thd3 == (_Bool)0) && z$read_delayed == (_Bool)0) && z$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (x == 0 || x == 1)) && (z == 0 || z == 1)) && (z$mem_tmp == 0 || z$mem_tmp == 1)) && (z$w_buff0 == 0 || z$w_buff0 == 1)) && (z$w_buff1 == 0 || z$w_buff1 == 1)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff1 && z$w_buff1 <= 1) && (z$w_buff1 == 0 || z$w_buff1 == 1)))) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff0 && z$w_buff0 <= 1) && (z$w_buff0 == 0 || z$w_buff0 == 1))) [2024-06-14 14:51:26,592 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:51:26,592 INFO L106 edCorrectnessWitness]: ghost_update [L839-L839] multithreaded = 1; [2024-06-14 14:51:26,653 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:51:26,974 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:51:26,984 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 14:51:27,321 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:51:27,356 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:51:27,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:51:27 WrapperNode [2024-06-14 14:51:27,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:51:27,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:51:27,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:51:27,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:51:27,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:51:27" (1/1) ... [2024-06-14 14:51:27,394 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:51:27" (1/1) ... [2024-06-14 14:51:27,625 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 126 [2024-06-14 14:51:27,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:51:27,627 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:51:27,627 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:51:27,627 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:51:27,647 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:51:27" (1/1) ... [2024-06-14 14:51:27,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:51:27" (1/1) ... [2024-06-14 14:51:27,672 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:51:27" (1/1) ... [2024-06-14 14:51:27,728 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]. [2024-06-14 14:51:27,729 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:51:27" (1/1) ... [2024-06-14 14:51:27,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:51:27" (1/1) ... [2024-06-14 14:51:27,772 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:51:27" (1/1) ... [2024-06-14 14:51:27,774 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:51:27" (1/1) ... [2024-06-14 14:51:27,794 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:51:27" (1/1) ... [2024-06-14 14:51:27,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:51:27" (1/1) ... [2024-06-14 14:51:27,887 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:51:27,888 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:51:27,888 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:51:27,888 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:51:27,889 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:51:27" (1/1) ... [2024-06-14 14:51:27,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:51:27,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:51:27,942 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) [2024-06-14 14:51:27,980 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 [2024-06-14 14:51:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 14:51:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:51:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-14 14:51:27,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-14 14:51:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-14 14:51:27,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-14 14:51:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-14 14:51:27,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-14 14:51:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:51:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 14:51:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:51:28,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:51:28,001 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 14:51:28,122 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:51:28,123 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:51:29,413 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:51:29,414 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:51:29,717 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:51:29,718 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-14 14:51:29,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:51:29 BoogieIcfgContainer [2024-06-14 14:51:29,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:51:29,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:51:29,721 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:51:29,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:51:29,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:51:25" (1/4) ... [2024-06-14 14:51:29,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee58f07 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:51:29, skipping insertion in model container [2024-06-14 14:51:29,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:51:26" (2/4) ... [2024-06-14 14:51:29,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee58f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:51:29, skipping insertion in model container [2024-06-14 14:51:29,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:51:27" (3/4) ... [2024-06-14 14:51:29,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee58f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:51:29, skipping insertion in model container [2024-06-14 14:51:29,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:51:29" (4/4) ... [2024-06-14 14:51:29,726 INFO L112 eAbstractionObserver]: Analyzing ICFG mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2024-06-14 14:51:29,739 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:51:29,739 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-14 14:51:29,739 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:51:29,879 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-14 14:51:29,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 42 transitions, 96 flow [2024-06-14 14:51:29,954 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2024-06-14 14:51:29,954 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:51:29,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 0/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-14 14:51:29,957 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 42 transitions, 96 flow [2024-06-14 14:51:29,959 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 33 transitions, 75 flow [2024-06-14 14:51:29,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:51:29,976 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;@3c7e64af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:51:29,976 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-14 14:51:29,983 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:51:29,984 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-06-14 14:51:29,984 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:51:29,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:51:29,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 14:51:29,985 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:51:29,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:51:29,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1315925462, now seen corresponding path program 1 times [2024-06-14 14:51:29,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:51:29,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161046799] [2024-06-14 14:51:29,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:51:29,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:51:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:51:36,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:51:36,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:51:36,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161046799] [2024-06-14 14:51:36,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161046799] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:51:36,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:51:36,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 14:51:36,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49147892] [2024-06-14 14:51:36,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:51:36,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:51:36,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:51:36,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:51:36,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:51:36,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2024-06-14 14:51:36,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-06-14 14:51:36,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:51:36,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2024-06-14 14:51:36,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:51:37,610 INFO L124 PetriNetUnfolderBase]: 1359/2100 cut-off events. [2024-06-14 14:51:37,610 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-06-14 14:51:37,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4216 conditions, 2100 events. 1359/2100 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 10067 event pairs, 941 based on Foata normal form. 1/2058 useless extension candidates. Maximal degree in co-relation 4201. Up to 2029 conditions per place. [2024-06-14 14:51:37,623 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 34 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2024-06-14 14:51:37,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 43 transitions, 177 flow [2024-06-14 14:51:37,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:51:37,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:51:37,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-06-14 14:51:37,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2024-06-14 14:51:37,634 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 75 flow. Second operand 3 states and 74 transitions. [2024-06-14 14:51:37,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 43 transitions, 177 flow [2024-06-14 14:51:37,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 43 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-14 14:51:37,637 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 102 flow [2024-06-14 14:51:37,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2024-06-14 14:51:37,641 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2024-06-14 14:51:37,641 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 102 flow [2024-06-14 14:51:37,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-06-14 14:51:37,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:51:37,642 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:51:37,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:51:37,642 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:51:37,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:51:37,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1883946295, now seen corresponding path program 1 times [2024-06-14 14:51:37,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:51:37,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501120059] [2024-06-14 14:51:37,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:51:37,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:51:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:51:42,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:51:42,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:51:42,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501120059] [2024-06-14 14:51:42,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501120059] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:51:42,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:51:42,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 14:51:42,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988868852] [2024-06-14 14:51:42,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:51:42,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 14:51:42,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:51:42,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 14:51:42,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-14 14:51:42,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2024-06-14 14:51:42,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2024-06-14 14:51:42,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:51:42,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2024-06-14 14:51:42,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:51:43,716 INFO L124 PetriNetUnfolderBase]: 1353/2091 cut-off events. [2024-06-14 14:51:43,716 INFO L125 PetriNetUnfolderBase]: For 396/396 co-relation queries the response was YES. [2024-06-14 14:51:43,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4749 conditions, 2091 events. 1353/2091 cut-off events. For 396/396 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 9990 event pairs, 795 based on Foata normal form. 3/2084 useless extension candidates. Maximal degree in co-relation 4734. Up to 2005 conditions per place. [2024-06-14 14:51:43,727 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 41 selfloop transitions, 7 changer transitions 0/53 dead transitions. [2024-06-14 14:51:43,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 53 transitions, 244 flow [2024-06-14 14:51:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 14:51:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 14:51:43,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-06-14 14:51:43,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5654761904761905 [2024-06-14 14:51:43,730 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 102 flow. Second operand 4 states and 95 transitions. [2024-06-14 14:51:43,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 53 transitions, 244 flow [2024-06-14 14:51:43,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 53 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:51:43,731 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 138 flow [2024-06-14 14:51:43,732 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2024-06-14 14:51:43,732 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2024-06-14 14:51:43,732 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 138 flow [2024-06-14 14:51:43,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2024-06-14 14:51:43,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:51:43,733 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:51:43,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 14:51:43,733 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:51:43,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:51:43,734 INFO L85 PathProgramCache]: Analyzing trace with hash 2003849064, now seen corresponding path program 1 times [2024-06-14 14:51:43,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:51:43,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959863345] [2024-06-14 14:51:43,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:51:43,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:51:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:51:48,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:51:48,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:51:48,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959863345] [2024-06-14 14:51:48,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959863345] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:51:48,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:51:48,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:51:48,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752413177] [2024-06-14 14:51:48,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:51:48,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 14:51:48,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:51:48,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 14:51:48,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:51:49,003 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 14:51:49,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 138 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-06-14 14:51:49,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:51:49,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 14:51:49,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:51:50,080 INFO L124 PetriNetUnfolderBase]: 1641/2511 cut-off events. [2024-06-14 14:51:50,081 INFO L125 PetriNetUnfolderBase]: For 1285/1285 co-relation queries the response was YES. [2024-06-14 14:51:50,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6296 conditions, 2511 events. 1641/2511 cut-off events. For 1285/1285 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 11943 event pairs, 746 based on Foata normal form. 3/2502 useless extension candidates. Maximal degree in co-relation 6279. Up to 2393 conditions per place. [2024-06-14 14:51:50,092 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 56 selfloop transitions, 13 changer transitions 0/73 dead transitions. [2024-06-14 14:51:50,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 73 transitions, 378 flow [2024-06-14 14:51:50,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:51:50,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:51:50,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2024-06-14 14:51:50,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-06-14 14:51:50,094 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 138 flow. Second operand 6 states and 132 transitions. [2024-06-14 14:51:50,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 73 transitions, 378 flow [2024-06-14 14:51:50,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 73 transitions, 358 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-06-14 14:51:50,097 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 196 flow [2024-06-14 14:51:50,097 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=196, PETRI_PLACES=51, PETRI_TRANSITIONS=45} [2024-06-14 14:51:50,098 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 8 predicate places. [2024-06-14 14:51:50,098 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 196 flow [2024-06-14 14:51:50,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-06-14 14:51:50,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:51:50,099 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:51:50,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 14:51:50,099 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:51:50,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:51:50,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1989780140, now seen corresponding path program 1 times [2024-06-14 14:51:50,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:51:50,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502684723] [2024-06-14 14:51:50,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:51:50,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:51:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:51:55,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:51:55,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:51:55,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502684723] [2024-06-14 14:51:55,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502684723] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:51:55,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:51:55,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 14:51:55,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977510547] [2024-06-14 14:51:55,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:51:55,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 14:51:55,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:51:55,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 14:51:55,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-14 14:51:55,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 14:51:55,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 196 flow. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 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) [2024-06-14 14:51:55,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:51:55,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 14:51:55,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:51:57,070 INFO L124 PetriNetUnfolderBase]: 1632/2496 cut-off events. [2024-06-14 14:51:57,071 INFO L125 PetriNetUnfolderBase]: For 2539/2539 co-relation queries the response was YES. [2024-06-14 14:51:57,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6975 conditions, 2496 events. 1632/2496 cut-off events. For 2539/2539 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 11804 event pairs, 582 based on Foata normal form. 6/2490 useless extension candidates. Maximal degree in co-relation 6956. Up to 2348 conditions per place. [2024-06-14 14:51:57,083 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 60 selfloop transitions, 15 changer transitions 0/79 dead transitions. [2024-06-14 14:51:57,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 79 transitions, 438 flow [2024-06-14 14:51:57,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 14:51:57,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 14:51:57,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 148 transitions. [2024-06-14 14:51:57,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5034013605442177 [2024-06-14 14:51:57,087 INFO L175 Difference]: Start difference. First operand has 51 places, 45 transitions, 196 flow. Second operand 7 states and 148 transitions. [2024-06-14 14:51:57,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 79 transitions, 438 flow [2024-06-14 14:51:57,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 79 transitions, 410 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-06-14 14:51:57,092 INFO L231 Difference]: Finished difference. Result has 54 places, 46 transitions, 217 flow [2024-06-14 14:51:57,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=217, PETRI_PLACES=54, PETRI_TRANSITIONS=46} [2024-06-14 14:51:57,094 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 11 predicate places. [2024-06-14 14:51:57,094 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 46 transitions, 217 flow [2024-06-14 14:51:57,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 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) [2024-06-14 14:51:57,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:51:57,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:51:57,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 14:51:57,095 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:51:57,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:51:57,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1263716854, now seen corresponding path program 1 times [2024-06-14 14:51:57,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:51:57,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700400385] [2024-06-14 14:51:57,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:51:57,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:51:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:52:09,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:52:09,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:52:09,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700400385] [2024-06-14 14:52:09,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700400385] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:52:09,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:52:09,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:52:09,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732113460] [2024-06-14 14:52:09,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:52:09,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 14:52:09,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:52:09,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 14:52:09,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:52:09,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:52:09,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 46 transitions, 217 flow. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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) [2024-06-14 14:52:09,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:52:09,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:52:09,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:52:10,449 INFO L124 PetriNetUnfolderBase]: 1627/2501 cut-off events. [2024-06-14 14:52:10,449 INFO L125 PetriNetUnfolderBase]: For 3802/3802 co-relation queries the response was YES. [2024-06-14 14:52:10,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7410 conditions, 2501 events. 1627/2501 cut-off events. For 3802/3802 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 11854 event pairs, 689 based on Foata normal form. 2/2503 useless extension candidates. Maximal degree in co-relation 7390. Up to 2407 conditions per place. [2024-06-14 14:52:10,461 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 48 selfloop transitions, 8 changer transitions 0/60 dead transitions. [2024-06-14 14:52:10,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 60 transitions, 373 flow [2024-06-14 14:52:10,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:52:10,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:52:10,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 92 transitions. [2024-06-14 14:52:10,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4380952380952381 [2024-06-14 14:52:10,464 INFO L175 Difference]: Start difference. First operand has 54 places, 46 transitions, 217 flow. Second operand 5 states and 92 transitions. [2024-06-14 14:52:10,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 60 transitions, 373 flow [2024-06-14 14:52:10,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 60 transitions, 334 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-06-14 14:52:10,471 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 224 flow [2024-06-14 14:52:10,472 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=224, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2024-06-14 14:52:10,474 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 11 predicate places. [2024-06-14 14:52:10,474 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 224 flow [2024-06-14 14:52:10,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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) [2024-06-14 14:52:10,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:52:10,480 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:52:10,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-14 14:52:10,481 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:52:10,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:52:10,481 INFO L85 PathProgramCache]: Analyzing trace with hash 557161464, now seen corresponding path program 1 times [2024-06-14 14:52:10,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:52:10,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660031617] [2024-06-14 14:52:10,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:52:10,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:52:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:52:23,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:52:23,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:52:23,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660031617] [2024-06-14 14:52:23,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660031617] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:52:23,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:52:23,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 14:52:23,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838509352] [2024-06-14 14:52:23,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:52:23,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 14:52:23,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:52:23,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 14:52:23,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-14 14:52:23,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:52:23,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 224 flow. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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) [2024-06-14 14:52:23,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:52:23,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:52:23,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:52:24,737 INFO L124 PetriNetUnfolderBase]: 1883/2795 cut-off events. [2024-06-14 14:52:24,738 INFO L125 PetriNetUnfolderBase]: For 6041/6041 co-relation queries the response was YES. [2024-06-14 14:52:24,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8905 conditions, 2795 events. 1883/2795 cut-off events. For 6041/6041 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 12579 event pairs, 763 based on Foata normal form. 6/2801 useless extension candidates. Maximal degree in co-relation 8883. Up to 2725 conditions per place. [2024-06-14 14:52:24,755 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 59 selfloop transitions, 17 changer transitions 0/79 dead transitions. [2024-06-14 14:52:24,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 79 transitions, 496 flow [2024-06-14 14:52:24,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:52:24,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:52:24,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 111 transitions. [2024-06-14 14:52:24,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2024-06-14 14:52:24,757 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 224 flow. Second operand 6 states and 111 transitions. [2024-06-14 14:52:24,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 79 transitions, 496 flow [2024-06-14 14:52:24,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 79 transitions, 474 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-06-14 14:52:24,762 INFO L231 Difference]: Finished difference. Result has 59 places, 60 transitions, 327 flow [2024-06-14 14:52:24,762 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=327, PETRI_PLACES=59, PETRI_TRANSITIONS=60} [2024-06-14 14:52:24,762 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 16 predicate places. [2024-06-14 14:52:24,763 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 60 transitions, 327 flow [2024-06-14 14:52:24,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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) [2024-06-14 14:52:24,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:52:24,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:52:24,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-14 14:52:24,763 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:52:24,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:52:24,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1044008201, now seen corresponding path program 1 times [2024-06-14 14:52:24,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:52:24,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350710929] [2024-06-14 14:52:24,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:52:24,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:52:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:52:33,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:52:33,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:52:33,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350710929] [2024-06-14 14:52:33,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350710929] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:52:33,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:52:33,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 14:52:33,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246767878] [2024-06-14 14:52:33,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:52:33,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 14:52:33,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:52:33,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 14:52:33,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-14 14:52:33,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:52:33,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 60 transitions, 327 flow. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2024-06-14 14:52:33,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:52:33,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:52:33,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:52:34,915 INFO L124 PetriNetUnfolderBase]: 1698/2615 cut-off events. [2024-06-14 14:52:34,916 INFO L125 PetriNetUnfolderBase]: For 8055/8073 co-relation queries the response was YES. [2024-06-14 14:52:34,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9210 conditions, 2615 events. 1698/2615 cut-off events. For 8055/8073 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 12503 event pairs, 669 based on Foata normal form. 6/2607 useless extension candidates. Maximal degree in co-relation 9185. Up to 2456 conditions per place. [2024-06-14 14:52:34,969 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 63 selfloop transitions, 16 changer transitions 0/86 dead transitions. [2024-06-14 14:52:34,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 86 transitions, 607 flow [2024-06-14 14:52:34,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:52:34,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:52:34,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2024-06-14 14:52:34,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45634920634920634 [2024-06-14 14:52:34,971 INFO L175 Difference]: Start difference. First operand has 59 places, 60 transitions, 327 flow. Second operand 6 states and 115 transitions. [2024-06-14 14:52:34,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 86 transitions, 607 flow [2024-06-14 14:52:34,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 86 transitions, 591 flow, removed 7 selfloop flow, removed 1 redundant places. [2024-06-14 14:52:34,978 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 405 flow [2024-06-14 14:52:34,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=405, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2024-06-14 14:52:34,979 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2024-06-14 14:52:34,979 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 405 flow [2024-06-14 14:52:34,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2024-06-14 14:52:34,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:52:34,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:52:34,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-14 14:52:34,980 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:52:34,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:52:34,980 INFO L85 PathProgramCache]: Analyzing trace with hash 130675729, now seen corresponding path program 2 times [2024-06-14 14:52:34,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:52:34,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566349057] [2024-06-14 14:52:34,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:52:34,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:52:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:52:44,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:52:44,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:52:44,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566349057] [2024-06-14 14:52:44,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566349057] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:52:44,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:52:44,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 14:52:44,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281413625] [2024-06-14 14:52:44,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:52:44,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 14:52:44,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:52:44,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 14:52:44,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-14 14:52:44,594 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:52:44,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 405 flow. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2024-06-14 14:52:44,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:52:44,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:52:44,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:52:45,659 INFO L124 PetriNetUnfolderBase]: 1693/2607 cut-off events. [2024-06-14 14:52:45,659 INFO L125 PetriNetUnfolderBase]: For 10161/10175 co-relation queries the response was YES. [2024-06-14 14:52:45,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9745 conditions, 2607 events. 1693/2607 cut-off events. For 10161/10175 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 12404 event pairs, 665 based on Foata normal form. 2/2595 useless extension candidates. Maximal degree in co-relation 9717. Up to 2475 conditions per place. [2024-06-14 14:52:45,674 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 63 selfloop transitions, 11 changer transitions 0/81 dead transitions. [2024-06-14 14:52:45,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 81 transitions, 591 flow [2024-06-14 14:52:45,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:52:45,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:52:45,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 108 transitions. [2024-06-14 14:52:45,677 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-06-14 14:52:45,678 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 405 flow. Second operand 6 states and 108 transitions. [2024-06-14 14:52:45,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 81 transitions, 591 flow [2024-06-14 14:52:45,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 81 transitions, 549 flow, removed 17 selfloop flow, removed 2 redundant places. [2024-06-14 14:52:45,687 INFO L231 Difference]: Finished difference. Result has 68 places, 66 transitions, 393 flow [2024-06-14 14:52:45,687 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=393, PETRI_PLACES=68, PETRI_TRANSITIONS=66} [2024-06-14 14:52:45,689 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 25 predicate places. [2024-06-14 14:52:45,689 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 66 transitions, 393 flow [2024-06-14 14:52:45,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2024-06-14 14:52:45,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:52:45,690 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:52:45,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-14 14:52:45,690 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:52:45,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:52:45,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1824663275, now seen corresponding path program 1 times [2024-06-14 14:52:45,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:52:45,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817597713] [2024-06-14 14:52:45,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:52:45,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:52:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:52:56,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:52:56,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:52:56,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817597713] [2024-06-14 14:52:56,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817597713] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:52:56,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:52:56,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 14:52:56,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530043842] [2024-06-14 14:52:56,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:52:56,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 14:52:56,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:52:56,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 14:52:56,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-14 14:52:56,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:52:56,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 66 transitions, 393 flow. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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) [2024-06-14 14:52:56,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:52:56,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:52:56,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:52:58,110 INFO L124 PetriNetUnfolderBase]: 1706/2625 cut-off events. [2024-06-14 14:52:58,111 INFO L125 PetriNetUnfolderBase]: For 11692/11706 co-relation queries the response was YES. [2024-06-14 14:52:58,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9939 conditions, 2625 events. 1706/2625 cut-off events. For 11692/11706 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 12478 event pairs, 647 based on Foata normal form. 2/2612 useless extension candidates. Maximal degree in co-relation 9909. Up to 2473 conditions per place. [2024-06-14 14:52:58,121 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 73 selfloop transitions, 14 changer transitions 0/94 dead transitions. [2024-06-14 14:52:58,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 94 transitions, 659 flow [2024-06-14 14:52:58,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 14:52:58,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 14:52:58,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 130 transitions. [2024-06-14 14:52:58,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4421768707482993 [2024-06-14 14:52:58,126 INFO L175 Difference]: Start difference. First operand has 68 places, 66 transitions, 393 flow. Second operand 7 states and 130 transitions. [2024-06-14 14:52:58,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 94 transitions, 659 flow [2024-06-14 14:52:58,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 94 transitions, 625 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-06-14 14:52:58,135 INFO L231 Difference]: Finished difference. Result has 69 places, 69 transitions, 429 flow [2024-06-14 14:52:58,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=429, PETRI_PLACES=69, PETRI_TRANSITIONS=69} [2024-06-14 14:52:58,136 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 26 predicate places. [2024-06-14 14:52:58,136 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 69 transitions, 429 flow [2024-06-14 14:52:58,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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) [2024-06-14 14:52:58,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:52:58,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:52:58,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-14 14:52:58,137 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:52:58,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:52:58,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1824783431, now seen corresponding path program 1 times [2024-06-14 14:52:58,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:52:58,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574165279] [2024-06-14 14:52:58,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:52:58,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:52:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:53:08,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:53:08,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:53:08,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574165279] [2024-06-14 14:53:08,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574165279] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:53:08,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:53:08,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 14:53:08,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760221384] [2024-06-14 14:53:08,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:53:08,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 14:53:08,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:53:08,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 14:53:08,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-14 14:53:08,950 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:53:08,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 69 transitions, 429 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 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) [2024-06-14 14:53:08,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:53:08,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:53:08,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:53:10,299 INFO L124 PetriNetUnfolderBase]: 1984/2941 cut-off events. [2024-06-14 14:53:10,300 INFO L125 PetriNetUnfolderBase]: For 16941/16941 co-relation queries the response was YES. [2024-06-14 14:53:10,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11927 conditions, 2941 events. 1984/2941 cut-off events. For 16941/16941 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 13293 event pairs, 682 based on Foata normal form. 6/2947 useless extension candidates. Maximal degree in co-relation 11897. Up to 2747 conditions per place. [2024-06-14 14:53:10,331 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 87 selfloop transitions, 28 changer transitions 0/118 dead transitions. [2024-06-14 14:53:10,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 118 transitions, 937 flow [2024-06-14 14:53:10,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 14:53:10,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 14:53:10,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 137 transitions. [2024-06-14 14:53:10,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46598639455782315 [2024-06-14 14:53:10,333 INFO L175 Difference]: Start difference. First operand has 69 places, 69 transitions, 429 flow. Second operand 7 states and 137 transitions. [2024-06-14 14:53:10,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 118 transitions, 937 flow [2024-06-14 14:53:10,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 118 transitions, 891 flow, removed 11 selfloop flow, removed 5 redundant places. [2024-06-14 14:53:10,341 INFO L231 Difference]: Finished difference. Result has 74 places, 86 transitions, 604 flow [2024-06-14 14:53:10,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=604, PETRI_PLACES=74, PETRI_TRANSITIONS=86} [2024-06-14 14:53:10,342 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 31 predicate places. [2024-06-14 14:53:10,342 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 86 transitions, 604 flow [2024-06-14 14:53:10,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 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) [2024-06-14 14:53:10,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:53:10,343 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:53:10,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-14 14:53:10,343 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:53:10,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:53:10,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1445364259, now seen corresponding path program 2 times [2024-06-14 14:53:10,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:53:10,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297991596] [2024-06-14 14:53:10,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:53:10,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:53:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:53:20,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:53:20,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:53:20,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297991596] [2024-06-14 14:53:20,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297991596] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:53:20,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:53:20,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 14:53:20,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984032811] [2024-06-14 14:53:20,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:53:20,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 14:53:20,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:53:20,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 14:53:20,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-14 14:53:20,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:53:20,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 86 transitions, 604 flow. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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) [2024-06-14 14:53:20,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:53:20,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:53:20,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:53:22,458 INFO L124 PetriNetUnfolderBase]: 1831/2791 cut-off events. [2024-06-14 14:53:22,458 INFO L125 PetriNetUnfolderBase]: For 19489/19521 co-relation queries the response was YES. [2024-06-14 14:53:22,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12434 conditions, 2791 events. 1831/2791 cut-off events. For 19489/19521 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 13144 event pairs, 623 based on Foata normal form. 6/2772 useless extension candidates. Maximal degree in co-relation 12400. Up to 2576 conditions per place. [2024-06-14 14:53:22,480 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 78 selfloop transitions, 26 changer transitions 0/116 dead transitions. [2024-06-14 14:53:22,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 116 transitions, 988 flow [2024-06-14 14:53:22,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 14:53:22,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 14:53:22,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 133 transitions. [2024-06-14 14:53:22,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-06-14 14:53:22,482 INFO L175 Difference]: Start difference. First operand has 74 places, 86 transitions, 604 flow. Second operand 7 states and 133 transitions. [2024-06-14 14:53:22,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 116 transitions, 988 flow [2024-06-14 14:53:22,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 116 transitions, 952 flow, removed 17 selfloop flow, removed 1 redundant places. [2024-06-14 14:53:22,505 INFO L231 Difference]: Finished difference. Result has 80 places, 92 transitions, 710 flow [2024-06-14 14:53:22,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=710, PETRI_PLACES=80, PETRI_TRANSITIONS=92} [2024-06-14 14:53:22,505 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 37 predicate places. [2024-06-14 14:53:22,506 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 92 transitions, 710 flow [2024-06-14 14:53:22,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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) [2024-06-14 14:53:22,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:53:22,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:53:22,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-14 14:53:22,506 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:53:22,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:53:22,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1398084339, now seen corresponding path program 2 times [2024-06-14 14:53:22,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:53:22,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593330087] [2024-06-14 14:53:22,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:53:22,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:53:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:53:31,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:53:31,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:53:31,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593330087] [2024-06-14 14:53:31,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593330087] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:53:31,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:53:31,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 14:53:31,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853083784] [2024-06-14 14:53:31,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:53:31,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 14:53:31,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:53:31,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 14:53:31,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-14 14:53:31,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:53:31,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 92 transitions, 710 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 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) [2024-06-14 14:53:31,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:53:31,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:53:31,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:53:33,240 INFO L124 PetriNetUnfolderBase]: 2031/3007 cut-off events. [2024-06-14 14:53:33,240 INFO L125 PetriNetUnfolderBase]: For 26534/26534 co-relation queries the response was YES. [2024-06-14 14:53:33,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14278 conditions, 3007 events. 2031/3007 cut-off events. For 26534/26534 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 13571 event pairs, 702 based on Foata normal form. 6/3013 useless extension candidates. Maximal degree in co-relation 14241. Up to 2931 conditions per place. [2024-06-14 14:53:33,260 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 96 selfloop transitions, 21 changer transitions 0/120 dead transitions. [2024-06-14 14:53:33,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 120 transitions, 1094 flow [2024-06-14 14:53:33,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 14:53:33,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 14:53:33,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2024-06-14 14:53:33,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-06-14 14:53:33,262 INFO L175 Difference]: Start difference. First operand has 80 places, 92 transitions, 710 flow. Second operand 7 states and 126 transitions. [2024-06-14 14:53:33,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 120 transitions, 1094 flow [2024-06-14 14:53:33,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 120 transitions, 1042 flow, removed 18 selfloop flow, removed 3 redundant places. [2024-06-14 14:53:33,284 INFO L231 Difference]: Finished difference. Result has 85 places, 98 transitions, 775 flow [2024-06-14 14:53:33,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=775, PETRI_PLACES=85, PETRI_TRANSITIONS=98} [2024-06-14 14:53:33,285 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 42 predicate places. [2024-06-14 14:53:33,285 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 98 transitions, 775 flow [2024-06-14 14:53:33,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 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) [2024-06-14 14:53:33,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:53:33,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:53:33,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-14 14:53:33,286 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:53:33,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:53:33,287 INFO L85 PathProgramCache]: Analyzing trace with hash 2001914951, now seen corresponding path program 3 times [2024-06-14 14:53:33,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:53:33,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677840644] [2024-06-14 14:53:33,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:53:33,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:53:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:53:42,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:53:42,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:53:42,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677840644] [2024-06-14 14:53:42,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677840644] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:53:42,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:53:42,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 14:53:42,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841400662] [2024-06-14 14:53:42,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:53:42,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 14:53:42,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:53:42,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 14:53:42,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-14 14:53:42,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:53:42,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 98 transitions, 775 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 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) [2024-06-14 14:53:42,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:53:42,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:53:42,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:53:43,583 INFO L124 PetriNetUnfolderBase]: 2035/3013 cut-off events. [2024-06-14 14:53:43,583 INFO L125 PetriNetUnfolderBase]: For 29761/29761 co-relation queries the response was YES. [2024-06-14 14:53:43,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14738 conditions, 3013 events. 2035/3013 cut-off events. For 29761/29761 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 13651 event pairs, 702 based on Foata normal form. 6/3019 useless extension candidates. Maximal degree in co-relation 14698. Up to 2877 conditions per place. [2024-06-14 14:53:43,599 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 99 selfloop transitions, 27 changer transitions 0/129 dead transitions. [2024-06-14 14:53:43,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 129 transitions, 1238 flow [2024-06-14 14:53:43,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 14:53:43,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 14:53:43,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 129 transitions. [2024-06-14 14:53:43,601 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4387755102040816 [2024-06-14 14:53:43,601 INFO L175 Difference]: Start difference. First operand has 85 places, 98 transitions, 775 flow. Second operand 7 states and 129 transitions. [2024-06-14 14:53:43,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 129 transitions, 1238 flow [2024-06-14 14:53:43,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 129 transitions, 1183 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-06-14 14:53:43,618 INFO L231 Difference]: Finished difference. Result has 89 places, 105 transitions, 882 flow [2024-06-14 14:53:43,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=882, PETRI_PLACES=89, PETRI_TRANSITIONS=105} [2024-06-14 14:53:43,618 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 46 predicate places. [2024-06-14 14:53:43,619 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 105 transitions, 882 flow [2024-06-14 14:53:43,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 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) [2024-06-14 14:53:43,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:53:43,619 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:53:43,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-14 14:53:43,619 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:53:43,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:53:43,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1438935169, now seen corresponding path program 3 times [2024-06-14 14:53:43,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:53:43,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11867367] [2024-06-14 14:53:43,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:53:43,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:53:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:53:53,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:53:53,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:53:53,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11867367] [2024-06-14 14:53:53,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11867367] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:53:53,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:53:53,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 14:53:53,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372102345] [2024-06-14 14:53:53,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:53:53,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 14:53:53,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:53:53,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 14:53:53,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-14 14:53:53,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:53:53,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 105 transitions, 882 flow. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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) [2024-06-14 14:53:53,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:53:53,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:53:53,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:53:54,837 INFO L124 PetriNetUnfolderBase]: 1860/2835 cut-off events. [2024-06-14 14:53:54,837 INFO L125 PetriNetUnfolderBase]: For 30160/30180 co-relation queries the response was YES. [2024-06-14 14:53:54,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14108 conditions, 2835 events. 1860/2835 cut-off events. For 30160/30180 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 13371 event pairs, 613 based on Foata normal form. 2/2815 useless extension candidates. Maximal degree in co-relation 14067. Up to 2672 conditions per place. [2024-06-14 14:53:54,854 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 95 selfloop transitions, 14 changer transitions 0/124 dead transitions. [2024-06-14 14:53:54,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 124 transitions, 1148 flow [2024-06-14 14:53:54,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 14:53:54,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 14:53:54,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 124 transitions. [2024-06-14 14:53:54,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4217687074829932 [2024-06-14 14:53:54,855 INFO L175 Difference]: Start difference. First operand has 89 places, 105 transitions, 882 flow. Second operand 7 states and 124 transitions. [2024-06-14 14:53:54,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 124 transitions, 1148 flow [2024-06-14 14:53:54,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 124 transitions, 1077 flow, removed 27 selfloop flow, removed 3 redundant places. [2024-06-14 14:53:54,876 INFO L231 Difference]: Finished difference. Result has 93 places, 105 transitions, 847 flow [2024-06-14 14:53:54,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=847, PETRI_PLACES=93, PETRI_TRANSITIONS=105} [2024-06-14 14:53:54,877 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 50 predicate places. [2024-06-14 14:53:54,877 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 105 transitions, 847 flow [2024-06-14 14:53:54,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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) [2024-06-14 14:53:54,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:53:54,877 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:53:54,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-14 14:53:54,877 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:53:54,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:53:54,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1438688905, now seen corresponding path program 1 times [2024-06-14 14:53:54,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:53:54,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568622802] [2024-06-14 14:53:54,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:53:54,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:53:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:54:08,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:54:08,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:54:08,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568622802] [2024-06-14 14:54:08,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568622802] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:54:08,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:54:08,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 14:54:08,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067335058] [2024-06-14 14:54:08,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:54:08,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 14:54:08,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:54:08,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 14:54:08,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-14 14:54:08,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:54:08,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 105 transitions, 847 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:54:08,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:54:08,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:54:08,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:54:10,420 INFO L124 PetriNetUnfolderBase]: 2033/3011 cut-off events. [2024-06-14 14:54:10,421 INFO L125 PetriNetUnfolderBase]: For 36830/36830 co-relation queries the response was YES. [2024-06-14 14:54:10,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15416 conditions, 3011 events. 2033/3011 cut-off events. For 36830/36830 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 13600 event pairs, 679 based on Foata normal form. 6/3017 useless extension candidates. Maximal degree in co-relation 15373. Up to 2915 conditions per place. [2024-06-14 14:54:10,441 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 102 selfloop transitions, 25 changer transitions 0/130 dead transitions. [2024-06-14 14:54:10,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 130 transitions, 1251 flow [2024-06-14 14:54:10,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 14:54:10,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 14:54:10,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 127 transitions. [2024-06-14 14:54:10,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43197278911564624 [2024-06-14 14:54:10,466 INFO L175 Difference]: Start difference. First operand has 93 places, 105 transitions, 847 flow. Second operand 7 states and 127 transitions. [2024-06-14 14:54:10,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 130 transitions, 1251 flow [2024-06-14 14:54:10,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 130 transitions, 1207 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-06-14 14:54:10,491 INFO L231 Difference]: Finished difference. Result has 94 places, 108 transitions, 907 flow [2024-06-14 14:54:10,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=907, PETRI_PLACES=94, PETRI_TRANSITIONS=108} [2024-06-14 14:54:10,492 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 51 predicate places. [2024-06-14 14:54:10,492 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 108 transitions, 907 flow [2024-06-14 14:54:10,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:54:10,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:54:10,492 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:54:10,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-14 14:54:10,493 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:54:10,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:54:10,493 INFO L85 PathProgramCache]: Analyzing trace with hash 811864944, now seen corresponding path program 1 times [2024-06-14 14:54:10,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:54:10,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501808057] [2024-06-14 14:54:10,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:54:10,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:54:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:54:24,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:54:24,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:54:24,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501808057] [2024-06-14 14:54:24,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501808057] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:54:24,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:54:24,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:54:24,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195126592] [2024-06-14 14:54:24,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:54:24,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 14:54:24,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:54:24,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 14:54:24,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:54:24,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:54:24,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 108 transitions, 907 flow. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 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) [2024-06-14 14:54:24,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:54:24,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:54:24,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:54:26,343 INFO L124 PetriNetUnfolderBase]: 1904/2881 cut-off events. [2024-06-14 14:54:26,344 INFO L125 PetriNetUnfolderBase]: For 40030/40030 co-relation queries the response was YES. [2024-06-14 14:54:26,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15333 conditions, 2881 events. 1904/2881 cut-off events. For 40030/40030 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 13420 event pairs, 703 based on Foata normal form. 1/2882 useless extension candidates. Maximal degree in co-relation 15289. Up to 2769 conditions per place. [2024-06-14 14:54:26,369 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 95 selfloop transitions, 8 changer transitions 0/116 dead transitions. [2024-06-14 14:54:26,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 116 transitions, 1133 flow [2024-06-14 14:54:26,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:54:26,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:54:26,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 88 transitions. [2024-06-14 14:54:26,371 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41904761904761906 [2024-06-14 14:54:26,371 INFO L175 Difference]: Start difference. First operand has 94 places, 108 transitions, 907 flow. Second operand 5 states and 88 transitions. [2024-06-14 14:54:26,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 116 transitions, 1133 flow [2024-06-14 14:54:26,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 116 transitions, 1045 flow, removed 21 selfloop flow, removed 5 redundant places. [2024-06-14 14:54:26,403 INFO L231 Difference]: Finished difference. Result has 94 places, 108 transitions, 841 flow [2024-06-14 14:54:26,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=819, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=841, PETRI_PLACES=94, PETRI_TRANSITIONS=108} [2024-06-14 14:54:26,403 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 51 predicate places. [2024-06-14 14:54:26,404 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 108 transitions, 841 flow [2024-06-14 14:54:26,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 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) [2024-06-14 14:54:26,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:54:26,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:54:26,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-14 14:54:26,405 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:54:26,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:54:26,405 INFO L85 PathProgramCache]: Analyzing trace with hash 729898036, now seen corresponding path program 1 times [2024-06-14 14:54:26,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:54:26,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457338083] [2024-06-14 14:54:26,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:54:26,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:54:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:54:37,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:54:37,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:54:37,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457338083] [2024-06-14 14:54:37,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457338083] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:54:37,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:54:37,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 14:54:37,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407367340] [2024-06-14 14:54:37,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:54:37,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 14:54:37,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:54:37,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 14:54:37,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-14 14:54:37,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:54:37,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 108 transitions, 841 flow. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 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) [2024-06-14 14:54:37,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:54:37,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:54:37,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:54:39,336 INFO L124 PetriNetUnfolderBase]: 1904/2893 cut-off events. [2024-06-14 14:54:39,336 INFO L125 PetriNetUnfolderBase]: For 43494/43508 co-relation queries the response was YES. [2024-06-14 14:54:39,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15483 conditions, 2893 events. 1904/2893 cut-off events. For 43494/43508 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 13583 event pairs, 619 based on Foata normal form. 6/2888 useless extension candidates. Maximal degree in co-relation 15438. Up to 2675 conditions per place. [2024-06-14 14:54:39,355 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 113 selfloop transitions, 23 changer transitions 0/152 dead transitions. [2024-06-14 14:54:39,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 152 transitions, 1367 flow [2024-06-14 14:54:39,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 14:54:39,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 14:54:39,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 168 transitions. [2024-06-14 14:54:39,359 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-06-14 14:54:39,359 INFO L175 Difference]: Start difference. First operand has 94 places, 108 transitions, 841 flow. Second operand 9 states and 168 transitions. [2024-06-14 14:54:39,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 152 transitions, 1367 flow [2024-06-14 14:54:39,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 152 transitions, 1345 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-06-14 14:54:39,381 INFO L231 Difference]: Finished difference. Result has 99 places, 114 transitions, 975 flow [2024-06-14 14:54:39,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=819, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=975, PETRI_PLACES=99, PETRI_TRANSITIONS=114} [2024-06-14 14:54:39,381 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 56 predicate places. [2024-06-14 14:54:39,381 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 114 transitions, 975 flow [2024-06-14 14:54:39,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 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) [2024-06-14 14:54:39,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:54:39,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:54:39,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-06-14 14:54:39,382 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:54:39,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:54:39,383 INFO L85 PathProgramCache]: Analyzing trace with hash 729988401, now seen corresponding path program 1 times [2024-06-14 14:54:39,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:54:39,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191791046] [2024-06-14 14:54:39,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:54:39,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:54:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:54:49,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:54:49,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:54:49,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191791046] [2024-06-14 14:54:49,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191791046] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:54:49,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:54:49,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 14:54:49,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608101641] [2024-06-14 14:54:49,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:54:49,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 14:54:49,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:54:49,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 14:54:49,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-14 14:54:49,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:54:49,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 114 transitions, 975 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:54:49,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:54:49,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:54:49,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:54:50,870 INFO L124 PetriNetUnfolderBase]: 2117/3131 cut-off events. [2024-06-14 14:54:50,870 INFO L125 PetriNetUnfolderBase]: For 51364/51364 co-relation queries the response was YES. [2024-06-14 14:54:50,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17421 conditions, 3131 events. 2117/3131 cut-off events. For 51364/51364 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 14169 event pairs, 670 based on Foata normal form. 6/3137 useless extension candidates. Maximal degree in co-relation 17376. Up to 3019 conditions per place. [2024-06-14 14:54:50,890 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 129 selfloop transitions, 27 changer transitions 0/159 dead transitions. [2024-06-14 14:54:50,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 159 transitions, 1599 flow [2024-06-14 14:54:50,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 14:54:50,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 14:54:50,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 150 transitions. [2024-06-14 14:54:50,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44642857142857145 [2024-06-14 14:54:50,893 INFO L175 Difference]: Start difference. First operand has 99 places, 114 transitions, 975 flow. Second operand 8 states and 150 transitions. [2024-06-14 14:54:50,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 159 transitions, 1599 flow [2024-06-14 14:54:50,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 159 transitions, 1525 flow, removed 28 selfloop flow, removed 5 redundant places. [2024-06-14 14:54:50,924 INFO L231 Difference]: Finished difference. Result has 104 places, 125 transitions, 1115 flow [2024-06-14 14:54:50,924 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1115, PETRI_PLACES=104, PETRI_TRANSITIONS=125} [2024-06-14 14:54:50,925 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 61 predicate places. [2024-06-14 14:54:50,925 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 125 transitions, 1115 flow [2024-06-14 14:54:50,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:54:50,925 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:54:50,925 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:54:50,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-06-14 14:54:50,925 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:54:50,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:54:50,926 INFO L85 PathProgramCache]: Analyzing trace with hash 729988246, now seen corresponding path program 2 times [2024-06-14 14:54:50,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:54:50,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613123487] [2024-06-14 14:54:50,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:54:50,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:54:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:55:02,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:55:02,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:55:02,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613123487] [2024-06-14 14:55:02,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613123487] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:55:02,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:55:02,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 14:55:02,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117867646] [2024-06-14 14:55:02,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:55:02,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 14:55:02,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:55:02,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 14:55:02,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-14 14:55:03,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:55:03,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 125 transitions, 1115 flow. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 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) [2024-06-14 14:55:03,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:55:03,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:55:03,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:55:04,499 INFO L124 PetriNetUnfolderBase]: 1985/2997 cut-off events. [2024-06-14 14:55:04,500 INFO L125 PetriNetUnfolderBase]: For 57349/57363 co-relation queries the response was YES. [2024-06-14 14:55:04,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17634 conditions, 2997 events. 1985/2997 cut-off events. For 57349/57363 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 14039 event pairs, 619 based on Foata normal form. 6/2992 useless extension candidates. Maximal degree in co-relation 17585. Up to 2793 conditions per place. [2024-06-14 14:55:04,522 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 118 selfloop transitions, 17 changer transitions 0/154 dead transitions. [2024-06-14 14:55:04,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 154 transitions, 1459 flow [2024-06-14 14:55:04,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 14:55:04,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 14:55:04,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 146 transitions. [2024-06-14 14:55:04,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2024-06-14 14:55:04,526 INFO L175 Difference]: Start difference. First operand has 104 places, 125 transitions, 1115 flow. Second operand 8 states and 146 transitions. [2024-06-14 14:55:04,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 154 transitions, 1459 flow [2024-06-14 14:55:04,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 154 transitions, 1317 flow, removed 48 selfloop flow, removed 4 redundant places. [2024-06-14 14:55:04,562 INFO L231 Difference]: Finished difference. Result has 108 places, 125 transitions, 1015 flow [2024-06-14 14:55:04,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=973, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1015, PETRI_PLACES=108, PETRI_TRANSITIONS=125} [2024-06-14 14:55:04,562 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 65 predicate places. [2024-06-14 14:55:04,562 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 125 transitions, 1015 flow [2024-06-14 14:55:04,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 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) [2024-06-14 14:55:04,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:55:04,563 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:55:04,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-06-14 14:55:04,563 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:55:04,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:55:04,564 INFO L85 PathProgramCache]: Analyzing trace with hash 733713051, now seen corresponding path program 2 times [2024-06-14 14:55:04,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:55:04,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493286356] [2024-06-14 14:55:04,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:55:04,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:55:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:55:14,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:55:14,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:55:14,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493286356] [2024-06-14 14:55:14,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493286356] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:55:14,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:55:14,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 14:55:14,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915293829] [2024-06-14 14:55:14,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:55:14,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 14:55:14,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:55:14,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 14:55:14,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-14 14:55:14,472 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:55:14,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 125 transitions, 1015 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:55:14,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:55:14,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:55:14,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:55:16,257 INFO L124 PetriNetUnfolderBase]: 2244/3313 cut-off events. [2024-06-14 14:55:16,258 INFO L125 PetriNetUnfolderBase]: For 66463/66465 co-relation queries the response was YES. [2024-06-14 14:55:16,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19602 conditions, 3313 events. 2244/3313 cut-off events. For 66463/66465 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 15156 event pairs, 653 based on Foata normal form. 8/3321 useless extension candidates. Maximal degree in co-relation 19552. Up to 2827 conditions per place. [2024-06-14 14:55:16,289 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 113 selfloop transitions, 62 changer transitions 0/178 dead transitions. [2024-06-14 14:55:16,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 178 transitions, 1931 flow [2024-06-14 14:55:16,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 14:55:16,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 14:55:16,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 159 transitions. [2024-06-14 14:55:16,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4732142857142857 [2024-06-14 14:55:16,294 INFO L175 Difference]: Start difference. First operand has 108 places, 125 transitions, 1015 flow. Second operand 8 states and 159 transitions. [2024-06-14 14:55:16,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 178 transitions, 1931 flow [2024-06-14 14:55:16,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 178 transitions, 1889 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-06-14 14:55:16,365 INFO L231 Difference]: Finished difference. Result has 111 places, 140 transitions, 1356 flow [2024-06-14 14:55:16,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=973, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1356, PETRI_PLACES=111, PETRI_TRANSITIONS=140} [2024-06-14 14:55:16,366 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 68 predicate places. [2024-06-14 14:55:16,366 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 140 transitions, 1356 flow [2024-06-14 14:55:16,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:55:16,366 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:55:16,367 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:55:16,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-06-14 14:55:16,367 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:55:16,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:55:16,369 INFO L85 PathProgramCache]: Analyzing trace with hash 733707471, now seen corresponding path program 3 times [2024-06-14 14:55:16,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:55:16,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709642818] [2024-06-14 14:55:16,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:55:16,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:55:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:55:26,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:55:26,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:55:26,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709642818] [2024-06-14 14:55:26,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709642818] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:55:26,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:55:26,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 14:55:26,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936249829] [2024-06-14 14:55:26,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:55:26,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 14:55:26,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:55:26,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 14:55:26,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-14 14:55:27,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:55:27,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 140 transitions, 1356 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:55:27,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:55:27,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:55:27,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:55:28,731 INFO L124 PetriNetUnfolderBase]: 2232/3297 cut-off events. [2024-06-14 14:55:28,731 INFO L125 PetriNetUnfolderBase]: For 75121/75123 co-relation queries the response was YES. [2024-06-14 14:55:28,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20813 conditions, 3297 events. 2232/3297 cut-off events. For 75121/75123 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 15060 event pairs, 657 based on Foata normal form. 8/3305 useless extension candidates. Maximal degree in co-relation 20760. Up to 2821 conditions per place. [2024-06-14 14:55:28,754 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 117 selfloop transitions, 57 changer transitions 0/177 dead transitions. [2024-06-14 14:55:28,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 177 transitions, 2052 flow [2024-06-14 14:55:28,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 14:55:28,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 14:55:28,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 158 transitions. [2024-06-14 14:55:28,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47023809523809523 [2024-06-14 14:55:28,755 INFO L175 Difference]: Start difference. First operand has 111 places, 140 transitions, 1356 flow. Second operand 8 states and 158 transitions. [2024-06-14 14:55:28,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 177 transitions, 2052 flow [2024-06-14 14:55:28,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 177 transitions, 1923 flow, removed 58 selfloop flow, removed 2 redundant places. [2024-06-14 14:55:28,819 INFO L231 Difference]: Finished difference. Result has 117 places, 140 transitions, 1355 flow [2024-06-14 14:55:28,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1231, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1355, PETRI_PLACES=117, PETRI_TRANSITIONS=140} [2024-06-14 14:55:28,819 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 74 predicate places. [2024-06-14 14:55:28,819 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 140 transitions, 1355 flow [2024-06-14 14:55:28,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:55:28,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:55:28,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:55:28,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-06-14 14:55:28,820 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:55:28,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:55:28,821 INFO L85 PathProgramCache]: Analyzing trace with hash 733707316, now seen corresponding path program 3 times [2024-06-14 14:55:28,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:55:28,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925024357] [2024-06-14 14:55:28,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:55:28,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:55:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:55:40,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:55:40,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:55:40,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925024357] [2024-06-14 14:55:40,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925024357] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:55:40,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:55:40,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 14:55:40,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504699849] [2024-06-14 14:55:40,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:55:40,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 14:55:40,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:55:40,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 14:55:40,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-14 14:55:40,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:55:40,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 140 transitions, 1355 flow. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 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) [2024-06-14 14:55:40,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:55:40,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:55:40,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:55:41,995 INFO L124 PetriNetUnfolderBase]: 2113/3182 cut-off events. [2024-06-14 14:55:41,996 INFO L125 PetriNetUnfolderBase]: For 75481/75501 co-relation queries the response was YES. [2024-06-14 14:55:42,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19898 conditions, 3182 events. 2113/3182 cut-off events. For 75481/75501 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 14970 event pairs, 635 based on Foata normal form. 12/3183 useless extension candidates. Maximal degree in co-relation 19843. Up to 2911 conditions per place. [2024-06-14 14:55:42,015 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 117 selfloop transitions, 29 changer transitions 0/169 dead transitions. [2024-06-14 14:55:42,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 169 transitions, 1773 flow [2024-06-14 14:55:42,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 14:55:42,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 14:55:42,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 147 transitions. [2024-06-14 14:55:42,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4375 [2024-06-14 14:55:42,018 INFO L175 Difference]: Start difference. First operand has 117 places, 140 transitions, 1355 flow. Second operand 8 states and 147 transitions. [2024-06-14 14:55:42,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 169 transitions, 1773 flow [2024-06-14 14:55:42,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 169 transitions, 1610 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-06-14 14:55:42,059 INFO L231 Difference]: Finished difference. Result has 117 places, 143 transitions, 1324 flow [2024-06-14 14:55:42,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1192, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1324, PETRI_PLACES=117, PETRI_TRANSITIONS=143} [2024-06-14 14:55:42,059 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 74 predicate places. [2024-06-14 14:55:42,059 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 143 transitions, 1324 flow [2024-06-14 14:55:42,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 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) [2024-06-14 14:55:42,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:55:42,061 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:55:42,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-06-14 14:55:42,061 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:55:42,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:55:42,062 INFO L85 PathProgramCache]: Analyzing trace with hash 55676182, now seen corresponding path program 4 times [2024-06-14 14:55:42,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:55:42,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210957259] [2024-06-14 14:55:42,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:55:42,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:55:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:55:52,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:55:52,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:55:52,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210957259] [2024-06-14 14:55:52,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210957259] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:55:52,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:55:52,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 14:55:52,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393075718] [2024-06-14 14:55:52,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:55:52,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 14:55:52,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:55:52,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 14:55:52,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-14 14:55:52,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:55:52,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 143 transitions, 1324 flow. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 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) [2024-06-14 14:55:52,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:55:52,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:55:52,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:55:54,106 INFO L124 PetriNetUnfolderBase]: 2108/3174 cut-off events. [2024-06-14 14:55:54,106 INFO L125 PetriNetUnfolderBase]: For 80753/80769 co-relation queries the response was YES. [2024-06-14 14:55:54,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19997 conditions, 3174 events. 2108/3174 cut-off events. For 80753/80769 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 14940 event pairs, 636 based on Foata normal form. 6/3169 useless extension candidates. Maximal degree in co-relation 19943. Up to 2961 conditions per place. [2024-06-14 14:55:54,128 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 129 selfloop transitions, 17 changer transitions 0/169 dead transitions. [2024-06-14 14:55:54,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 169 transitions, 1740 flow [2024-06-14 14:55:54,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 14:55:54,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 14:55:54,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 140 transitions. [2024-06-14 14:55:54,131 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2024-06-14 14:55:54,131 INFO L175 Difference]: Start difference. First operand has 117 places, 143 transitions, 1324 flow. Second operand 8 states and 140 transitions. [2024-06-14 14:55:54,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 169 transitions, 1740 flow [2024-06-14 14:55:54,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 169 transitions, 1632 flow, removed 27 selfloop flow, removed 6 redundant places. [2024-06-14 14:55:54,200 INFO L231 Difference]: Finished difference. Result has 119 places, 146 transitions, 1330 flow [2024-06-14 14:55:54,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1216, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1330, PETRI_PLACES=119, PETRI_TRANSITIONS=146} [2024-06-14 14:55:54,215 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 76 predicate places. [2024-06-14 14:55:54,215 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 146 transitions, 1330 flow [2024-06-14 14:55:54,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 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) [2024-06-14 14:55:54,215 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:55:54,215 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:55:54,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-06-14 14:55:54,215 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:55:54,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:55:54,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1937441652, now seen corresponding path program 1 times [2024-06-14 14:55:54,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:55:54,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034350645] [2024-06-14 14:55:54,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:55:54,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:55:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:56:04,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:56:04,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:56:04,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034350645] [2024-06-14 14:56:04,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034350645] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:56:04,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:56:04,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 14:56:04,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929066510] [2024-06-14 14:56:04,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:56:04,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 14:56:04,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:56:04,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 14:56:04,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-06-14 14:56:04,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:56:04,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 146 transitions, 1330 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:56:04,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:56:04,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:56:04,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:56:05,786 INFO L124 PetriNetUnfolderBase]: 2240/3307 cut-off events. [2024-06-14 14:56:05,786 INFO L125 PetriNetUnfolderBase]: For 89332/89332 co-relation queries the response was YES. [2024-06-14 14:56:05,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21240 conditions, 3307 events. 2240/3307 cut-off events. For 89332/89332 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 15158 event pairs, 672 based on Foata normal form. 3/3310 useless extension candidates. Maximal degree in co-relation 21185. Up to 3200 conditions per place. [2024-06-14 14:56:05,810 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 138 selfloop transitions, 30 changer transitions 0/171 dead transitions. [2024-06-14 14:56:05,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 171 transitions, 1830 flow [2024-06-14 14:56:05,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 14:56:05,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 14:56:05,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 127 transitions. [2024-06-14 14:56:05,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43197278911564624 [2024-06-14 14:56:05,812 INFO L175 Difference]: Start difference. First operand has 119 places, 146 transitions, 1330 flow. Second operand 7 states and 127 transitions. [2024-06-14 14:56:05,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 171 transitions, 1830 flow [2024-06-14 14:56:05,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 171 transitions, 1740 flow, removed 30 selfloop flow, removed 6 redundant places. [2024-06-14 14:56:05,871 INFO L231 Difference]: Finished difference. Result has 120 places, 150 transitions, 1386 flow [2024-06-14 14:56:05,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1240, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1386, PETRI_PLACES=120, PETRI_TRANSITIONS=150} [2024-06-14 14:56:05,871 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 77 predicate places. [2024-06-14 14:56:05,872 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 150 transitions, 1386 flow [2024-06-14 14:56:05,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:56:05,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:56:05,872 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:56:05,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-06-14 14:56:05,872 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:56:05,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:56:05,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1649958325, now seen corresponding path program 4 times [2024-06-14 14:56:05,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:56:05,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256057296] [2024-06-14 14:56:05,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:56:05,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:56:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:56:15,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:56:15,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:56:15,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256057296] [2024-06-14 14:56:15,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256057296] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:56:15,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:56:15,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 14:56:15,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267740686] [2024-06-14 14:56:15,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:56:15,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 14:56:15,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:56:15,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 14:56:15,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-14 14:56:15,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:56:15,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 150 transitions, 1386 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:56:15,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:56:15,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:56:15,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:56:16,852 INFO L124 PetriNetUnfolderBase]: 2276/3359 cut-off events. [2024-06-14 14:56:16,853 INFO L125 PetriNetUnfolderBase]: For 97029/97029 co-relation queries the response was YES. [2024-06-14 14:56:16,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22263 conditions, 3359 events. 2276/3359 cut-off events. For 97029/97029 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 15372 event pairs, 675 based on Foata normal form. 6/3365 useless extension candidates. Maximal degree in co-relation 22207. Up to 3251 conditions per place. [2024-06-14 14:56:16,883 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 152 selfloop transitions, 25 changer transitions 0/180 dead transitions. [2024-06-14 14:56:16,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 180 transitions, 1928 flow [2024-06-14 14:56:16,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 14:56:16,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 14:56:16,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 142 transitions. [2024-06-14 14:56:16,885 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4226190476190476 [2024-06-14 14:56:16,885 INFO L175 Difference]: Start difference. First operand has 120 places, 150 transitions, 1386 flow. Second operand 8 states and 142 transitions. [2024-06-14 14:56:16,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 180 transitions, 1928 flow [2024-06-14 14:56:16,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 180 transitions, 1834 flow, removed 22 selfloop flow, removed 5 redundant places. [2024-06-14 14:56:16,973 INFO L231 Difference]: Finished difference. Result has 123 places, 154 transitions, 1431 flow [2024-06-14 14:56:16,974 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1292, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1431, PETRI_PLACES=123, PETRI_TRANSITIONS=154} [2024-06-14 14:56:16,974 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 80 predicate places. [2024-06-14 14:56:16,974 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 154 transitions, 1431 flow [2024-06-14 14:56:16,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:56:16,975 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:56:16,975 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:56:16,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-06-14 14:56:16,975 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:56:16,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:56:16,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1657315555, now seen corresponding path program 5 times [2024-06-14 14:56:16,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:56:16,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263188666] [2024-06-14 14:56:16,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:56:16,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:56:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:56:26,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:56:26,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:56:26,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263188666] [2024-06-14 14:56:26,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263188666] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:56:26,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:56:26,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 14:56:26,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330180811] [2024-06-14 14:56:26,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:56:26,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 14:56:26,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:56:26,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 14:56:26,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-14 14:56:26,492 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:56:26,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 154 transitions, 1431 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:56:26,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:56:26,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:56:26,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:56:27,991 INFO L124 PetriNetUnfolderBase]: 2312/3411 cut-off events. [2024-06-14 14:56:27,991 INFO L125 PetriNetUnfolderBase]: For 105414/105414 co-relation queries the response was YES. [2024-06-14 14:56:28,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22981 conditions, 3411 events. 2312/3411 cut-off events. For 105414/105414 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 15654 event pairs, 668 based on Foata normal form. 6/3417 useless extension candidates. Maximal degree in co-relation 22924. Up to 3139 conditions per place. [2024-06-14 14:56:28,020 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 150 selfloop transitions, 37 changer transitions 0/190 dead transitions. [2024-06-14 14:56:28,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 190 transitions, 2227 flow [2024-06-14 14:56:28,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 14:56:28,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 14:56:28,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 148 transitions. [2024-06-14 14:56:28,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2024-06-14 14:56:28,026 INFO L175 Difference]: Start difference. First operand has 123 places, 154 transitions, 1431 flow. Second operand 8 states and 148 transitions. [2024-06-14 14:56:28,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 190 transitions, 2227 flow [2024-06-14 14:56:28,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 190 transitions, 2124 flow, removed 29 selfloop flow, removed 6 redundant places. [2024-06-14 14:56:28,090 INFO L231 Difference]: Finished difference. Result has 126 places, 159 transitions, 1532 flow [2024-06-14 14:56:28,090 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1532, PETRI_PLACES=126, PETRI_TRANSITIONS=159} [2024-06-14 14:56:28,091 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 83 predicate places. [2024-06-14 14:56:28,091 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 159 transitions, 1532 flow [2024-06-14 14:56:28,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:56:28,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:56:28,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:56:28,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-06-14 14:56:28,092 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:56:28,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:56:28,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1929822875, now seen corresponding path program 6 times [2024-06-14 14:56:28,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:56:28,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492096544] [2024-06-14 14:56:28,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:56:28,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:56:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:56:37,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:56:37,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:56:37,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492096544] [2024-06-14 14:56:37,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492096544] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:56:37,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:56:37,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 14:56:37,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365189852] [2024-06-14 14:56:37,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:56:37,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 14:56:37,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:56:37,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 14:56:37,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-14 14:56:37,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:56:37,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 159 transitions, 1532 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:56:37,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:56:37,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:56:37,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:56:39,091 INFO L124 PetriNetUnfolderBase]: 2316/3417 cut-off events. [2024-06-14 14:56:39,091 INFO L125 PetriNetUnfolderBase]: For 113058/113058 co-relation queries the response was YES. [2024-06-14 14:56:39,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23442 conditions, 3417 events. 2316/3417 cut-off events. For 113058/113058 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 15659 event pairs, 679 based on Foata normal form. 6/3423 useless extension candidates. Maximal degree in co-relation 23383. Up to 3148 conditions per place. [2024-06-14 14:56:39,115 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 147 selfloop transitions, 41 changer transitions 0/191 dead transitions. [2024-06-14 14:56:39,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 191 transitions, 2177 flow [2024-06-14 14:56:39,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 14:56:39,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 14:56:39,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 147 transitions. [2024-06-14 14:56:39,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4375 [2024-06-14 14:56:39,116 INFO L175 Difference]: Start difference. First operand has 126 places, 159 transitions, 1532 flow. Second operand 8 states and 147 transitions. [2024-06-14 14:56:39,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 191 transitions, 2177 flow [2024-06-14 14:56:39,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 191 transitions, 1979 flow, removed 46 selfloop flow, removed 7 redundant places. [2024-06-14 14:56:39,186 INFO L231 Difference]: Finished difference. Result has 127 places, 163 transitions, 1518 flow [2024-06-14 14:56:39,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1350, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1518, PETRI_PLACES=127, PETRI_TRANSITIONS=163} [2024-06-14 14:56:39,187 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 84 predicate places. [2024-06-14 14:56:39,187 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 163 transitions, 1518 flow [2024-06-14 14:56:39,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 14:56:39,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:56:39,187 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:56:39,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-06-14 14:56:39,188 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:56:39,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:56:39,188 INFO L85 PathProgramCache]: Analyzing trace with hash -601988692, now seen corresponding path program 1 times [2024-06-14 14:56:39,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:56:39,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817073516] [2024-06-14 14:56:39,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:56:39,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:56:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:56:54,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:56:54,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:56:54,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817073516] [2024-06-14 14:56:54,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817073516] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:56:54,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:56:54,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 14:56:54,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156077250] [2024-06-14 14:56:54,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:56:54,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 14:56:54,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:56:54,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 14:56:54,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-14 14:56:54,842 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:56:54,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 163 transitions, 1518 flow. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:56:54,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:56:54,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:56:54,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:56:56,261 INFO L124 PetriNetUnfolderBase]: 2154/3228 cut-off events. [2024-06-14 14:56:56,262 INFO L125 PetriNetUnfolderBase]: For 116240/116264 co-relation queries the response was YES. [2024-06-14 14:56:56,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22406 conditions, 3228 events. 2154/3228 cut-off events. For 116240/116264 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 15074 event pairs, 661 based on Foata normal form. 3/3192 useless extension candidates. Maximal degree in co-relation 22347. Up to 3099 conditions per place. [2024-06-14 14:56:56,284 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 152 selfloop transitions, 11 changer transitions 0/177 dead transitions. [2024-06-14 14:56:56,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 177 transitions, 1898 flow [2024-06-14 14:56:56,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:56:56,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:56:56,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2024-06-14 14:56:56,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4087301587301587 [2024-06-14 14:56:56,286 INFO L175 Difference]: Start difference. First operand has 127 places, 163 transitions, 1518 flow. Second operand 6 states and 103 transitions. [2024-06-14 14:56:56,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 177 transitions, 1898 flow [2024-06-14 14:56:56,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 177 transitions, 1782 flow, removed 30 selfloop flow, removed 5 redundant places. [2024-06-14 14:56:56,340 INFO L231 Difference]: Finished difference. Result has 128 places, 166 transitions, 1464 flow [2024-06-14 14:56:56,340 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1402, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1464, PETRI_PLACES=128, PETRI_TRANSITIONS=166} [2024-06-14 14:56:56,340 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 85 predicate places. [2024-06-14 14:56:56,340 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 166 transitions, 1464 flow [2024-06-14 14:56:56,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:56:56,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:56:56,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:56:56,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-06-14 14:56:56,341 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:56:56,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:56:56,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1151943786, now seen corresponding path program 1 times [2024-06-14 14:56:56,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:56:56,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640004497] [2024-06-14 14:56:56,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:56:56,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:56:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:57:07,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:57:07,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:57:07,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640004497] [2024-06-14 14:57:07,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640004497] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:57:07,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:57:07,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 14:57:07,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467115520] [2024-06-14 14:57:07,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:57:07,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 14:57:07,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:57:07,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 14:57:07,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 14:57:07,834 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:57:07,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 166 transitions, 1464 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-06-14 14:57:07,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:57:07,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:57:07,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:57:09,595 INFO L124 PetriNetUnfolderBase]: 2209/3330 cut-off events. [2024-06-14 14:57:09,596 INFO L125 PetriNetUnfolderBase]: For 123851/123881 co-relation queries the response was YES. [2024-06-14 14:57:09,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23275 conditions, 3330 events. 2209/3330 cut-off events. For 123851/123881 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 15874 event pairs, 465 based on Foata normal form. 8/3327 useless extension candidates. Maximal degree in co-relation 23215. Up to 2981 conditions per place. [2024-06-14 14:57:09,622 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 159 selfloop transitions, 28 changer transitions 0/214 dead transitions. [2024-06-14 14:57:09,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 214 transitions, 2200 flow [2024-06-14 14:57:09,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 14:57:09,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 14:57:09,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 185 transitions. [2024-06-14 14:57:09,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2024-06-14 14:57:09,625 INFO L175 Difference]: Start difference. First operand has 128 places, 166 transitions, 1464 flow. Second operand 10 states and 185 transitions. [2024-06-14 14:57:09,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 214 transitions, 2200 flow [2024-06-14 14:57:09,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 214 transitions, 2158 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-06-14 14:57:09,696 INFO L231 Difference]: Finished difference. Result has 134 places, 170 transitions, 1633 flow [2024-06-14 14:57:09,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1422, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1633, PETRI_PLACES=134, PETRI_TRANSITIONS=170} [2024-06-14 14:57:09,698 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 91 predicate places. [2024-06-14 14:57:09,699 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 170 transitions, 1633 flow [2024-06-14 14:57:09,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-06-14 14:57:09,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:57:09,699 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:57:09,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-06-14 14:57:09,699 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:57:09,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:57:09,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1152004360, now seen corresponding path program 1 times [2024-06-14 14:57:09,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:57:09,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933618948] [2024-06-14 14:57:09,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:57:09,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:57:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:57:21,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:57:21,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:57:21,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933618948] [2024-06-14 14:57:21,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933618948] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:57:21,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:57:21,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 14:57:21,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907723362] [2024-06-14 14:57:21,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:57:21,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 14:57:21,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:57:21,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 14:57:21,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-14 14:57:21,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:57:21,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 170 transitions, 1633 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:57:21,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:57:21,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:57:21,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:57:23,724 INFO L124 PetriNetUnfolderBase]: 2465/3635 cut-off events. [2024-06-14 14:57:23,724 INFO L125 PetriNetUnfolderBase]: For 141637/141637 co-relation queries the response was YES. [2024-06-14 14:57:23,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26054 conditions, 3635 events. 2465/3635 cut-off events. For 141637/141637 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 16931 event pairs, 639 based on Foata normal form. 6/3641 useless extension candidates. Maximal degree in co-relation 25993. Up to 3370 conditions per place. [2024-06-14 14:57:23,752 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 190 selfloop transitions, 41 changer transitions 0/234 dead transitions. [2024-06-14 14:57:23,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 234 transitions, 2835 flow [2024-06-14 14:57:23,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 14:57:23,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 14:57:23,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 193 transitions. [2024-06-14 14:57:23,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4595238095238095 [2024-06-14 14:57:23,753 INFO L175 Difference]: Start difference. First operand has 134 places, 170 transitions, 1633 flow. Second operand 10 states and 193 transitions. [2024-06-14 14:57:23,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 234 transitions, 2835 flow [2024-06-14 14:57:23,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 234 transitions, 2717 flow, removed 45 selfloop flow, removed 6 redundant places. [2024-06-14 14:57:23,851 INFO L231 Difference]: Finished difference. Result has 140 places, 182 transitions, 1830 flow [2024-06-14 14:57:23,851 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1515, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1830, PETRI_PLACES=140, PETRI_TRANSITIONS=182} [2024-06-14 14:57:23,852 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 97 predicate places. [2024-06-14 14:57:23,852 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 182 transitions, 1830 flow [2024-06-14 14:57:23,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:57:23,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:57:23,852 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:57:23,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-06-14 14:57:23,852 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:57:23,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:57:23,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1152004236, now seen corresponding path program 2 times [2024-06-14 14:57:23,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:57:23,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699346351] [2024-06-14 14:57:23,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:57:23,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:57:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:57:35,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:57:35,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:57:35,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699346351] [2024-06-14 14:57:35,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699346351] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:57:35,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:57:35,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 14:57:35,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062067064] [2024-06-14 14:57:35,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:57:35,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 14:57:35,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:57:35,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 14:57:35,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-06-14 14:57:35,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:57:35,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 182 transitions, 1830 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-06-14 14:57:35,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:57:35,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:57:35,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:57:37,506 INFO L124 PetriNetUnfolderBase]: 2368/3547 cut-off events. [2024-06-14 14:57:37,507 INFO L125 PetriNetUnfolderBase]: For 151602/151632 co-relation queries the response was YES. [2024-06-14 14:57:37,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26332 conditions, 3547 events. 2368/3547 cut-off events. For 151602/151632 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 16989 event pairs, 595 based on Foata normal form. 8/3544 useless extension candidates. Maximal degree in co-relation 26267. Up to 3241 conditions per place. [2024-06-14 14:57:37,535 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 170 selfloop transitions, 25 changer transitions 0/225 dead transitions. [2024-06-14 14:57:37,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 225 transitions, 2378 flow [2024-06-14 14:57:37,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 14:57:37,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 14:57:37,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 182 transitions. [2024-06-14 14:57:37,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2024-06-14 14:57:37,538 INFO L175 Difference]: Start difference. First operand has 140 places, 182 transitions, 1830 flow. Second operand 10 states and 182 transitions. [2024-06-14 14:57:37,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 225 transitions, 2378 flow [2024-06-14 14:57:37,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 225 transitions, 2231 flow, removed 58 selfloop flow, removed 5 redundant places. [2024-06-14 14:57:37,630 INFO L231 Difference]: Finished difference. Result has 145 places, 184 transitions, 1798 flow [2024-06-14 14:57:37,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1683, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1798, PETRI_PLACES=145, PETRI_TRANSITIONS=184} [2024-06-14 14:57:37,631 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 102 predicate places. [2024-06-14 14:57:37,631 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 184 transitions, 1798 flow [2024-06-14 14:57:37,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-06-14 14:57:37,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:57:37,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:57:37,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-06-14 14:57:37,632 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:57:37,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:57:37,632 INFO L85 PathProgramCache]: Analyzing trace with hash 821112292, now seen corresponding path program 2 times [2024-06-14 14:57:37,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:57:37,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78541942] [2024-06-14 14:57:37,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:57:37,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:57:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:57:47,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:57:47,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:57:47,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78541942] [2024-06-14 14:57:47,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78541942] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:57:47,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:57:47,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 14:57:47,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471833655] [2024-06-14 14:57:47,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:57:47,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 14:57:47,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:57:47,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 14:57:47,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-14 14:57:47,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:57:47,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 184 transitions, 1798 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:57:47,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:57:47,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:57:47,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:57:49,349 INFO L124 PetriNetUnfolderBase]: 2518/3714 cut-off events. [2024-06-14 14:57:49,349 INFO L125 PetriNetUnfolderBase]: For 163172/163172 co-relation queries the response was YES. [2024-06-14 14:57:49,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27564 conditions, 3714 events. 2518/3714 cut-off events. For 163172/163172 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 17392 event pairs, 641 based on Foata normal form. 6/3720 useless extension candidates. Maximal degree in co-relation 27497. Up to 3502 conditions per place. [2024-06-14 14:57:49,378 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 196 selfloop transitions, 34 changer transitions 0/233 dead transitions. [2024-06-14 14:57:49,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 233 transitions, 2853 flow [2024-06-14 14:57:49,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 14:57:49,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 14:57:49,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 170 transitions. [2024-06-14 14:57:49,380 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4497354497354497 [2024-06-14 14:57:49,380 INFO L175 Difference]: Start difference. First operand has 145 places, 184 transitions, 1798 flow. Second operand 9 states and 170 transitions. [2024-06-14 14:57:49,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 233 transitions, 2853 flow [2024-06-14 14:57:49,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 233 transitions, 2760 flow, removed 23 selfloop flow, removed 8 redundant places. [2024-06-14 14:57:49,517 INFO L231 Difference]: Finished difference. Result has 147 places, 191 transitions, 1932 flow [2024-06-14 14:57:49,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1705, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1932, PETRI_PLACES=147, PETRI_TRANSITIONS=191} [2024-06-14 14:57:49,518 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 104 predicate places. [2024-06-14 14:57:49,518 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 191 transitions, 1932 flow [2024-06-14 14:57:49,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:57:49,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:57:49,518 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:57:49,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-06-14 14:57:49,519 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:57:49,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:57:49,519 INFO L85 PathProgramCache]: Analyzing trace with hash 821112168, now seen corresponding path program 3 times [2024-06-14 14:57:49,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:57:49,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081432076] [2024-06-14 14:57:49,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:57:49,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:57:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:58:01,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:58:01,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:58:01,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081432076] [2024-06-14 14:58:01,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081432076] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:58:01,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:58:01,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 14:58:01,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011940604] [2024-06-14 14:58:01,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:58:01,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 14:58:01,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:58:01,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 14:58:01,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 14:58:01,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:58:01,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 191 transitions, 1932 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-06-14 14:58:01,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:58:01,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:58:01,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:58:03,462 INFO L124 PetriNetUnfolderBase]: 2393/3584 cut-off events. [2024-06-14 14:58:03,462 INFO L125 PetriNetUnfolderBase]: For 167880/167910 co-relation queries the response was YES. [2024-06-14 14:58:03,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27022 conditions, 3584 events. 2393/3584 cut-off events. For 167880/167910 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 17156 event pairs, 596 based on Foata normal form. 8/3581 useless extension candidates. Maximal degree in co-relation 26953. Up to 3299 conditions per place. [2024-06-14 14:58:03,497 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 174 selfloop transitions, 19 changer transitions 0/225 dead transitions. [2024-06-14 14:58:03,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 225 transitions, 2404 flow [2024-06-14 14:58:03,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 14:58:03,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 14:58:03,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 162 transitions. [2024-06-14 14:58:03,500 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-06-14 14:58:03,500 INFO L175 Difference]: Start difference. First operand has 147 places, 191 transitions, 1932 flow. Second operand 9 states and 162 transitions. [2024-06-14 14:58:03,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 225 transitions, 2404 flow [2024-06-14 14:58:03,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 225 transitions, 2255 flow, removed 59 selfloop flow, removed 5 redundant places. [2024-06-14 14:58:03,645 INFO L231 Difference]: Finished difference. Result has 151 places, 191 transitions, 1828 flow [2024-06-14 14:58:03,646 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1783, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1828, PETRI_PLACES=151, PETRI_TRANSITIONS=191} [2024-06-14 14:58:03,646 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 108 predicate places. [2024-06-14 14:58:03,646 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 191 transitions, 1828 flow [2024-06-14 14:58:03,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-06-14 14:58:03,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:58:03,646 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:58:03,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-06-14 14:58:03,647 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:58:03,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:58:03,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1154805520, now seen corresponding path program 3 times [2024-06-14 14:58:03,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:58:03,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872355751] [2024-06-14 14:58:03,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:58:03,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:58:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:58:15,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:58:15,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:58:15,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872355751] [2024-06-14 14:58:15,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872355751] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:58:15,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:58:15,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 14:58:15,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646371368] [2024-06-14 14:58:15,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:58:15,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 14:58:15,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:58:15,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 14:58:15,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-14 14:58:15,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:58:15,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 191 transitions, 1828 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:58:15,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:58:15,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:58:15,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:58:17,392 INFO L124 PetriNetUnfolderBase]: 2514/3708 cut-off events. [2024-06-14 14:58:17,392 INFO L125 PetriNetUnfolderBase]: For 175833/175833 co-relation queries the response was YES. [2024-06-14 14:58:17,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27805 conditions, 3708 events. 2514/3708 cut-off events. For 175833/175833 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 17371 event pairs, 637 based on Foata normal form. 6/3714 useless extension candidates. Maximal degree in co-relation 27734. Up to 3562 conditions per place. [2024-06-14 14:58:17,424 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 200 selfloop transitions, 31 changer transitions 0/234 dead transitions. [2024-06-14 14:58:17,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 234 transitions, 2682 flow [2024-06-14 14:58:17,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 14:58:17,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 14:58:17,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 167 transitions. [2024-06-14 14:58:17,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4417989417989418 [2024-06-14 14:58:17,426 INFO L175 Difference]: Start difference. First operand has 151 places, 191 transitions, 1828 flow. Second operand 9 states and 167 transitions. [2024-06-14 14:58:17,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 234 transitions, 2682 flow [2024-06-14 14:58:17,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 234 transitions, 2632 flow, removed 3 selfloop flow, removed 8 redundant places. [2024-06-14 14:58:17,557 INFO L231 Difference]: Finished difference. Result has 152 places, 195 transitions, 1949 flow [2024-06-14 14:58:17,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1778, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1949, PETRI_PLACES=152, PETRI_TRANSITIONS=195} [2024-06-14 14:58:17,558 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 109 predicate places. [2024-06-14 14:58:17,558 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 195 transitions, 1949 flow [2024-06-14 14:58:17,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:58:17,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:58:17,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:58:17,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-06-14 14:58:17,558 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:58:17,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:58:17,559 INFO L85 PathProgramCache]: Analyzing trace with hash 936588036, now seen corresponding path program 1 times [2024-06-14 14:58:17,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:58:17,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585318768] [2024-06-14 14:58:17,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:58:17,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:58:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:58:28,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:58:28,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:58:28,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585318768] [2024-06-14 14:58:28,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585318768] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:58:28,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:58:28,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 14:58:28,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400387985] [2024-06-14 14:58:28,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:58:28,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 14:58:28,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:58:28,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 14:58:28,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-06-14 14:58:28,454 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:58:28,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 195 transitions, 1949 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:58:28,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:58:28,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:58:28,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:58:30,222 INFO L124 PetriNetUnfolderBase]: 2542/3754 cut-off events. [2024-06-14 14:58:30,223 INFO L125 PetriNetUnfolderBase]: For 188373/188375 co-relation queries the response was YES. [2024-06-14 14:58:30,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28522 conditions, 3754 events. 2542/3754 cut-off events. For 188373/188375 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 17666 event pairs, 588 based on Foata normal form. 8/3762 useless extension candidates. Maximal degree in co-relation 28450. Up to 3518 conditions per place. [2024-06-14 14:58:30,255 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 188 selfloop transitions, 40 changer transitions 0/231 dead transitions. [2024-06-14 14:58:30,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 231 transitions, 2773 flow [2024-06-14 14:58:30,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 14:58:30,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 14:58:30,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2024-06-14 14:58:30,256 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-06-14 14:58:30,257 INFO L175 Difference]: Start difference. First operand has 152 places, 195 transitions, 1949 flow. Second operand 8 states and 152 transitions. [2024-06-14 14:58:30,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 231 transitions, 2773 flow [2024-06-14 14:58:30,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 231 transitions, 2650 flow, removed 33 selfloop flow, removed 7 redundant places. [2024-06-14 14:58:30,394 INFO L231 Difference]: Finished difference. Result has 153 places, 198 transitions, 1998 flow [2024-06-14 14:58:30,394 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1826, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1998, PETRI_PLACES=153, PETRI_TRANSITIONS=198} [2024-06-14 14:58:30,395 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 110 predicate places. [2024-06-14 14:58:30,395 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 198 transitions, 1998 flow [2024-06-14 14:58:30,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:58:30,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:58:30,395 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:58:30,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-06-14 14:58:30,395 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:58:30,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:58:30,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1270269670, now seen corresponding path program 4 times [2024-06-14 14:58:30,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:58:30,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383686138] [2024-06-14 14:58:30,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:58:30,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:58:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:58:42,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:58:42,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:58:42,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383686138] [2024-06-14 14:58:42,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383686138] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:58:42,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:58:42,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 14:58:42,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428481223] [2024-06-14 14:58:42,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:58:42,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 14:58:42,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:58:42,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 14:58:42,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-06-14 14:58:42,921 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:58:42,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 198 transitions, 1998 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:58:42,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:58:42,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:58:42,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:58:44,567 INFO L124 PetriNetUnfolderBase]: 2578/3806 cut-off events. [2024-06-14 14:58:44,568 INFO L125 PetriNetUnfolderBase]: For 198120/198122 co-relation queries the response was YES. [2024-06-14 14:58:44,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29367 conditions, 3806 events. 2578/3806 cut-off events. For 198120/198122 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 17977 event pairs, 560 based on Foata normal form. 6/3812 useless extension candidates. Maximal degree in co-relation 29294. Up to 3193 conditions per place. [2024-06-14 14:58:44,600 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 159 selfloop transitions, 84 changer transitions 0/246 dead transitions. [2024-06-14 14:58:44,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 246 transitions, 3068 flow [2024-06-14 14:58:44,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 14:58:44,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 14:58:44,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 175 transitions. [2024-06-14 14:58:44,601 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46296296296296297 [2024-06-14 14:58:44,601 INFO L175 Difference]: Start difference. First operand has 153 places, 198 transitions, 1998 flow. Second operand 9 states and 175 transitions. [2024-06-14 14:58:44,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 246 transitions, 3068 flow [2024-06-14 14:58:44,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 246 transitions, 2916 flow, removed 38 selfloop flow, removed 6 redundant places. [2024-06-14 14:58:44,740 INFO L231 Difference]: Finished difference. Result has 157 places, 205 transitions, 2208 flow [2024-06-14 14:58:44,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1846, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2208, PETRI_PLACES=157, PETRI_TRANSITIONS=205} [2024-06-14 14:58:44,740 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 114 predicate places. [2024-06-14 14:58:44,740 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 205 transitions, 2208 flow [2024-06-14 14:58:44,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:58:44,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:58:44,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:58:44,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-06-14 14:58:44,741 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:58:44,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:58:44,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1270092040, now seen corresponding path program 5 times [2024-06-14 14:58:44,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:58:44,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848531512] [2024-06-14 14:58:44,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:58:44,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:58:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:58:55,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:58:55,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:58:55,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848531512] [2024-06-14 14:58:55,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848531512] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:58:55,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:58:55,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 14:58:55,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956253533] [2024-06-14 14:58:55,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:58:55,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 14:58:55,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:58:55,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 14:58:55,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-06-14 14:58:55,945 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:58:55,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 205 transitions, 2208 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:58:55,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:58:55,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:58:55,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:58:57,722 INFO L124 PetriNetUnfolderBase]: 2670/3937 cut-off events. [2024-06-14 14:58:57,722 INFO L125 PetriNetUnfolderBase]: For 218186/218188 co-relation queries the response was YES. [2024-06-14 14:58:57,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31830 conditions, 3937 events. 2670/3937 cut-off events. For 218186/218188 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 18698 event pairs, 565 based on Foata normal form. 6/3943 useless extension candidates. Maximal degree in co-relation 31755. Up to 3220 conditions per place. [2024-06-14 14:58:57,758 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 170 selfloop transitions, 85 changer transitions 0/258 dead transitions. [2024-06-14 14:58:57,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 258 transitions, 3636 flow [2024-06-14 14:58:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 14:58:57,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 14:58:57,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 179 transitions. [2024-06-14 14:58:57,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47354497354497355 [2024-06-14 14:58:57,762 INFO L175 Difference]: Start difference. First operand has 157 places, 205 transitions, 2208 flow. Second operand 9 states and 179 transitions. [2024-06-14 14:58:57,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 258 transitions, 3636 flow [2024-06-14 14:58:57,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 258 transitions, 3478 flow, removed 47 selfloop flow, removed 5 redundant places. [2024-06-14 14:58:57,906 INFO L231 Difference]: Finished difference. Result has 162 places, 213 transitions, 2436 flow [2024-06-14 14:58:57,906 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2050, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2436, PETRI_PLACES=162, PETRI_TRANSITIONS=213} [2024-06-14 14:58:57,907 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 119 predicate places. [2024-06-14 14:58:57,907 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 213 transitions, 2436 flow [2024-06-14 14:58:57,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:58:57,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:58:57,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:58:57,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-06-14 14:58:57,908 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:58:57,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:58:57,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1270091916, now seen corresponding path program 4 times [2024-06-14 14:58:57,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:58:57,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083351052] [2024-06-14 14:58:57,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:58:57,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:58:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:59:08,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:59:08,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:59:08,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083351052] [2024-06-14 14:59:08,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083351052] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:59:08,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:59:08,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 14:59:08,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532495427] [2024-06-14 14:59:08,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:59:08,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 14:59:08,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:59:08,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 14:59:08,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-14 14:59:09,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:59:09,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 213 transitions, 2436 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-06-14 14:59:09,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:59:09,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:59:09,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:59:10,933 INFO L124 PetriNetUnfolderBase]: 2559/3834 cut-off events. [2024-06-14 14:59:10,933 INFO L125 PetriNetUnfolderBase]: For 231210/231252 co-relation queries the response was YES. [2024-06-14 14:59:10,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32276 conditions, 3834 events. 2559/3834 cut-off events. For 231210/231252 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 18681 event pairs, 605 based on Foata normal form. 14/3837 useless extension candidates. Maximal degree in co-relation 32198. Up to 3476 conditions per place. [2024-06-14 14:59:10,970 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 177 selfloop transitions, 31 changer transitions 0/246 dead transitions. [2024-06-14 14:59:10,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 246 transitions, 3024 flow [2024-06-14 14:59:10,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 14:59:10,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 14:59:10,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 163 transitions. [2024-06-14 14:59:10,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4312169312169312 [2024-06-14 14:59:10,974 INFO L175 Difference]: Start difference. First operand has 162 places, 213 transitions, 2436 flow. Second operand 9 states and 163 transitions. [2024-06-14 14:59:10,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 246 transitions, 3024 flow [2024-06-14 14:59:11,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 246 transitions, 2805 flow, removed 66 selfloop flow, removed 5 redundant places. [2024-06-14 14:59:11,156 INFO L231 Difference]: Finished difference. Result has 166 places, 215 transitions, 2384 flow [2024-06-14 14:59:11,157 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2217, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2384, PETRI_PLACES=166, PETRI_TRANSITIONS=215} [2024-06-14 14:59:11,157 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 123 predicate places. [2024-06-14 14:59:11,157 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 215 transitions, 2384 flow [2024-06-14 14:59:11,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-06-14 14:59:11,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:59:11,158 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:59:11,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-06-14 14:59:11,158 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:59:11,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:59:11,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1270096690, now seen corresponding path program 6 times [2024-06-14 14:59:11,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:59:11,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663204456] [2024-06-14 14:59:11,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:59:11,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:59:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:59:21,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:59:21,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:59:21,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663204456] [2024-06-14 14:59:21,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663204456] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:59:21,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:59:21,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 14:59:21,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614600603] [2024-06-14 14:59:21,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:59:21,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 14:59:21,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:59:21,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 14:59:21,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-06-14 14:59:22,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:59:22,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 215 transitions, 2384 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:59:22,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:59:22,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:59:22,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:59:23,820 INFO L124 PetriNetUnfolderBase]: 2691/3970 cut-off events. [2024-06-14 14:59:23,820 INFO L125 PetriNetUnfolderBase]: For 240792/240794 co-relation queries the response was YES. [2024-06-14 14:59:23,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33049 conditions, 3970 events. 2691/3970 cut-off events. For 240792/240794 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 18839 event pairs, 568 based on Foata normal form. 6/3976 useless extension candidates. Maximal degree in co-relation 32969. Up to 3357 conditions per place. [2024-06-14 14:59:23,855 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 179 selfloop transitions, 79 changer transitions 0/261 dead transitions. [2024-06-14 14:59:23,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 261 transitions, 3557 flow [2024-06-14 14:59:23,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 14:59:23,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 14:59:23,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 176 transitions. [2024-06-14 14:59:23,857 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4656084656084656 [2024-06-14 14:59:23,857 INFO L175 Difference]: Start difference. First operand has 166 places, 215 transitions, 2384 flow. Second operand 9 states and 176 transitions. [2024-06-14 14:59:23,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 261 transitions, 3557 flow [2024-06-14 14:59:24,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 261 transitions, 3408 flow, removed 45 selfloop flow, removed 7 redundant places. [2024-06-14 14:59:24,011 INFO L231 Difference]: Finished difference. Result has 168 places, 219 transitions, 2511 flow [2024-06-14 14:59:24,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2235, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2511, PETRI_PLACES=168, PETRI_TRANSITIONS=219} [2024-06-14 14:59:24,012 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 125 predicate places. [2024-06-14 14:59:24,012 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 219 transitions, 2511 flow [2024-06-14 14:59:24,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:59:24,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:59:24,013 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:59:24,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-06-14 14:59:24,013 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:59:24,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:59:24,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2037501715, now seen corresponding path program 1 times [2024-06-14 14:59:24,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:59:24,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383080523] [2024-06-14 14:59:24,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:59:24,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:59:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:59:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:59:36,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:59:36,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383080523] [2024-06-14 14:59:36,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383080523] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:59:36,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:59:36,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 14:59:36,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723444603] [2024-06-14 14:59:36,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:59:36,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 14:59:36,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:59:36,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 14:59:36,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-14 14:59:36,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 14:59:36,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 219 transitions, 2511 flow. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:59:36,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:59:36,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 14:59:36,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:59:37,687 INFO L124 PetriNetUnfolderBase]: 2541/3798 cut-off events. [2024-06-14 14:59:37,687 INFO L125 PetriNetUnfolderBase]: For 245589/245613 co-relation queries the response was YES. [2024-06-14 14:59:37,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32725 conditions, 3798 events. 2541/3798 cut-off events. For 245589/245613 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 18490 event pairs, 630 based on Foata normal form. 2/3761 useless extension candidates. Maximal degree in co-relation 32644. Up to 3640 conditions per place. [2024-06-14 14:59:37,724 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 203 selfloop transitions, 22 changer transitions 0/240 dead transitions. [2024-06-14 14:59:37,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 240 transitions, 3170 flow [2024-06-14 14:59:37,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:59:37,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:59:37,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 110 transitions. [2024-06-14 14:59:37,725 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4365079365079365 [2024-06-14 14:59:37,725 INFO L175 Difference]: Start difference. First operand has 168 places, 219 transitions, 2511 flow. Second operand 6 states and 110 transitions. [2024-06-14 14:59:37,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 240 transitions, 3170 flow [2024-06-14 14:59:37,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 240 transitions, 2923 flow, removed 42 selfloop flow, removed 7 redundant places. [2024-06-14 14:59:37,932 INFO L231 Difference]: Finished difference. Result has 167 places, 224 transitions, 2408 flow [2024-06-14 14:59:37,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2274, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2408, PETRI_PLACES=167, PETRI_TRANSITIONS=224} [2024-06-14 14:59:37,933 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 124 predicate places. [2024-06-14 14:59:37,933 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 224 transitions, 2408 flow [2024-06-14 14:59:37,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:59:37,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:59:37,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:59:37,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-06-14 14:59:37,933 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:59:37,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:59:37,934 INFO L85 PathProgramCache]: Analyzing trace with hash -68849146, now seen corresponding path program 2 times [2024-06-14 14:59:37,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:59:37,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166891724] [2024-06-14 14:59:37,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:59:37,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:59:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:59:47,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:59:47,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:59:47,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166891724] [2024-06-14 14:59:47,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166891724] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:59:47,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:59:47,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 14:59:47,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887505025] [2024-06-14 14:59:47,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:59:47,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 14:59:47,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:59:47,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 14:59:47,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-06-14 14:59:47,939 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:59:47,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 224 transitions, 2408 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:59:47,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:59:47,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:59:47,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:59:49,917 INFO L124 PetriNetUnfolderBase]: 2729/4026 cut-off events. [2024-06-14 14:59:49,918 INFO L125 PetriNetUnfolderBase]: For 258800/258800 co-relation queries the response was YES. [2024-06-14 14:59:49,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33600 conditions, 4026 events. 2729/4026 cut-off events. For 258800/258800 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 19163 event pairs, 646 based on Foata normal form. 6/4032 useless extension candidates. Maximal degree in co-relation 33518. Up to 3885 conditions per place. [2024-06-14 14:59:49,962 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 217 selfloop transitions, 33 changer transitions 0/253 dead transitions. [2024-06-14 14:59:49,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 253 transitions, 3148 flow [2024-06-14 14:59:49,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 14:59:49,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 14:59:49,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 143 transitions. [2024-06-14 14:59:49,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4255952380952381 [2024-06-14 14:59:49,963 INFO L175 Difference]: Start difference. First operand has 167 places, 224 transitions, 2408 flow. Second operand 8 states and 143 transitions. [2024-06-14 14:59:49,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 253 transitions, 3148 flow [2024-06-14 14:59:50,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 253 transitions, 3089 flow, removed 17 selfloop flow, removed 3 redundant places. [2024-06-14 14:59:50,142 INFO L231 Difference]: Finished difference. Result has 172 places, 227 transitions, 2524 flow [2024-06-14 14:59:50,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2349, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2524, PETRI_PLACES=172, PETRI_TRANSITIONS=227} [2024-06-14 14:59:50,143 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 129 predicate places. [2024-06-14 14:59:50,143 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 227 transitions, 2524 flow [2024-06-14 14:59:50,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:59:50,143 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:59:50,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:59:50,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-06-14 14:59:50,144 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:59:50,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:59:50,144 INFO L85 PathProgramCache]: Analyzing trace with hash 391138382, now seen corresponding path program 1 times [2024-06-14 14:59:50,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:59:50,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542590887] [2024-06-14 14:59:50,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:59:50,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:59:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:59:59,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:59:59,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:59:59,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542590887] [2024-06-14 14:59:59,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542590887] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:59:59,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:59:59,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 14:59:59,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909414447] [2024-06-14 14:59:59,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:59:59,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 14:59:59,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:59:59,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 14:59:59,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-06-14 14:59:59,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 14:59:59,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 227 transitions, 2524 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 14:59:59,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:59:59,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 14:59:59,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:00:01,798 INFO L124 PetriNetUnfolderBase]: 2731/4029 cut-off events. [2024-06-14 15:00:01,798 INFO L125 PetriNetUnfolderBase]: For 267000/267000 co-relation queries the response was YES. [2024-06-14 15:00:01,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34142 conditions, 4029 events. 2731/4029 cut-off events. For 267000/267000 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 19170 event pairs, 643 based on Foata normal form. 3/4032 useless extension candidates. Maximal degree in co-relation 34059. Up to 3875 conditions per place. [2024-06-14 15:00:01,842 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 216 selfloop transitions, 38 changer transitions 0/257 dead transitions. [2024-06-14 15:00:01,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 257 transitions, 3296 flow [2024-06-14 15:00:01,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:00:01,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:00:01,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 144 transitions. [2024-06-14 15:00:01,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-06-14 15:00:01,844 INFO L175 Difference]: Start difference. First operand has 172 places, 227 transitions, 2524 flow. Second operand 8 states and 144 transitions. [2024-06-14 15:00:01,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 257 transitions, 3296 flow [2024-06-14 15:00:02,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 257 transitions, 3147 flow, removed 44 selfloop flow, removed 6 redundant places. [2024-06-14 15:00:02,085 INFO L231 Difference]: Finished difference. Result has 174 places, 231 transitions, 2587 flow [2024-06-14 15:00:02,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2375, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2587, PETRI_PLACES=174, PETRI_TRANSITIONS=231} [2024-06-14 15:00:02,087 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 131 predicate places. [2024-06-14 15:00:02,087 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 231 transitions, 2587 flow [2024-06-14 15:00:02,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 15:00:02,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:00:02,087 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:00:02,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-06-14 15:00:02,087 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:00:02,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:00:02,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1816310782, now seen corresponding path program 7 times [2024-06-14 15:00:02,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:00:02,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501446098] [2024-06-14 15:00:02,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:00:02,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:00:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:00:12,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:00:12,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:00:12,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501446098] [2024-06-14 15:00:12,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501446098] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:00:12,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:00:12,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:00:12,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098112136] [2024-06-14 15:00:12,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:00:12,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:00:12,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:00:12,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:00:12,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:00:12,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:00:12,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 231 transitions, 2587 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 15:00:12,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:00:12,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:00:12,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:00:14,912 INFO L124 PetriNetUnfolderBase]: 2767/4081 cut-off events. [2024-06-14 15:00:14,912 INFO L125 PetriNetUnfolderBase]: For 281957/281957 co-relation queries the response was YES. [2024-06-14 15:00:14,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34806 conditions, 4081 events. 2767/4081 cut-off events. For 281957/281957 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 19467 event pairs, 644 based on Foata normal form. 6/4087 useless extension candidates. Maximal degree in co-relation 34722. Up to 3885 conditions per place. [2024-06-14 15:00:14,947 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 221 selfloop transitions, 42 changer transitions 0/266 dead transitions. [2024-06-14 15:00:14,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 266 transitions, 3399 flow [2024-06-14 15:00:14,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:00:14,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:00:14,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 161 transitions. [2024-06-14 15:00:14,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-06-14 15:00:14,949 INFO L175 Difference]: Start difference. First operand has 174 places, 231 transitions, 2587 flow. Second operand 9 states and 161 transitions. [2024-06-14 15:00:14,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 266 transitions, 3399 flow [2024-06-14 15:00:15,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 266 transitions, 3247 flow, removed 43 selfloop flow, removed 6 redundant places. [2024-06-14 15:00:15,185 INFO L231 Difference]: Finished difference. Result has 177 places, 235 transitions, 2657 flow [2024-06-14 15:00:15,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2435, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2657, PETRI_PLACES=177, PETRI_TRANSITIONS=235} [2024-06-14 15:00:15,186 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 134 predicate places. [2024-06-14 15:00:15,186 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 235 transitions, 2657 flow [2024-06-14 15:00:15,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 15:00:15,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:00:15,187 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:00:15,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-06-14 15:00:15,187 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:00:15,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:00:15,187 INFO L85 PathProgramCache]: Analyzing trace with hash -68552476, now seen corresponding path program 3 times [2024-06-14 15:00:15,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:00:15,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037934678] [2024-06-14 15:00:15,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:00:15,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:00:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:00:25,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:00:25,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:00:25,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037934678] [2024-06-14 15:00:25,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037934678] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:00:25,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:00:25,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:00:25,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483634874] [2024-06-14 15:00:25,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:00:25,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:00:25,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:00:25,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:00:25,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:00:25,583 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:00:25,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 235 transitions, 2657 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 15:00:25,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:00:25,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:00:25,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:00:27,487 INFO L124 PetriNetUnfolderBase]: 2795/4125 cut-off events. [2024-06-14 15:00:27,488 INFO L125 PetriNetUnfolderBase]: For 296444/296444 co-relation queries the response was YES. [2024-06-14 15:00:27,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35788 conditions, 4125 events. 2795/4125 cut-off events. For 296444/296444 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 19774 event pairs, 645 based on Foata normal form. 6/4131 useless extension candidates. Maximal degree in co-relation 35703. Up to 3997 conditions per place. [2024-06-14 15:00:27,544 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 233 selfloop transitions, 28 changer transitions 0/264 dead transitions. [2024-06-14 15:00:27,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 264 transitions, 3435 flow [2024-06-14 15:00:27,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:00:27,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:00:27,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 142 transitions. [2024-06-14 15:00:27,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4226190476190476 [2024-06-14 15:00:27,546 INFO L175 Difference]: Start difference. First operand has 177 places, 235 transitions, 2657 flow. Second operand 8 states and 142 transitions. [2024-06-14 15:00:27,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 264 transitions, 3435 flow [2024-06-14 15:00:27,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 264 transitions, 3245 flow, removed 56 selfloop flow, removed 7 redundant places. [2024-06-14 15:00:27,889 INFO L231 Difference]: Finished difference. Result has 178 places, 238 transitions, 2643 flow [2024-06-14 15:00:27,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2467, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2643, PETRI_PLACES=178, PETRI_TRANSITIONS=238} [2024-06-14 15:00:27,889 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 135 predicate places. [2024-06-14 15:00:27,889 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 238 transitions, 2643 flow [2024-06-14 15:00:27,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 15:00:27,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:00:27,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:00:27,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-06-14 15:00:27,891 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:00:27,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:00:27,891 INFO L85 PathProgramCache]: Analyzing trace with hash -305204430, now seen corresponding path program 8 times [2024-06-14 15:00:27,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:00:27,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222290555] [2024-06-14 15:00:27,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:00:27,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:00:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:00:38,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:00:38,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:00:38,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222290555] [2024-06-14 15:00:38,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222290555] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:00:38,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:00:38,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:00:38,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320337008] [2024-06-14 15:00:38,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:00:38,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:00:38,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:00:38,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:00:38,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:00:38,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:00:38,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 238 transitions, 2643 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 15:00:38,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:00:38,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:00:38,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:00:40,552 INFO L124 PetriNetUnfolderBase]: 2831/4177 cut-off events. [2024-06-14 15:00:40,552 INFO L125 PetriNetUnfolderBase]: For 311561/311561 co-relation queries the response was YES. [2024-06-14 15:00:40,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36411 conditions, 4177 events. 2831/4177 cut-off events. For 311561/311561 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 20052 event pairs, 634 based on Foata normal form. 6/4183 useless extension candidates. Maximal degree in co-relation 36325. Up to 3814 conditions per place. [2024-06-14 15:00:40,598 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 216 selfloop transitions, 60 changer transitions 0/279 dead transitions. [2024-06-14 15:00:40,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 279 transitions, 3731 flow [2024-06-14 15:00:40,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:00:40,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:00:40,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2024-06-14 15:00:40,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4365079365079365 [2024-06-14 15:00:40,600 INFO L175 Difference]: Start difference. First operand has 178 places, 238 transitions, 2643 flow. Second operand 9 states and 165 transitions. [2024-06-14 15:00:40,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 279 transitions, 3731 flow [2024-06-14 15:00:40,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 279 transitions, 3579 flow, removed 50 selfloop flow, removed 6 redundant places. [2024-06-14 15:00:40,863 INFO L231 Difference]: Finished difference. Result has 182 places, 245 transitions, 2833 flow [2024-06-14 15:00:40,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2491, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2833, PETRI_PLACES=182, PETRI_TRANSITIONS=245} [2024-06-14 15:00:40,864 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 139 predicate places. [2024-06-14 15:00:40,864 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 245 transitions, 2833 flow [2024-06-14 15:00:40,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 15:00:40,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:00:40,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:00:40,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-06-14 15:00:40,864 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:00:40,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:00:40,865 INFO L85 PathProgramCache]: Analyzing trace with hash 162822266, now seen corresponding path program 9 times [2024-06-14 15:00:40,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:00:40,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595643102] [2024-06-14 15:00:40,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:00:40,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:00:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:00:51,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:00:51,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:00:51,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595643102] [2024-06-14 15:00:51,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595643102] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:00:51,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:00:51,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:00:51,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347844912] [2024-06-14 15:00:51,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:00:51,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:00:51,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:00:51,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:00:51,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:00:51,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:00:51,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 245 transitions, 2833 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 15:00:51,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:00:51,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:00:51,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:00:53,294 INFO L124 PetriNetUnfolderBase]: 2867/4229 cut-off events. [2024-06-14 15:00:53,295 INFO L125 PetriNetUnfolderBase]: For 328103/328103 co-relation queries the response was YES. [2024-06-14 15:00:53,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37835 conditions, 4229 events. 2867/4229 cut-off events. For 328103/328103 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 20302 event pairs, 634 based on Foata normal form. 6/4235 useless extension candidates. Maximal degree in co-relation 37747. Up to 3713 conditions per place. [2024-06-14 15:00:53,334 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 218 selfloop transitions, 69 changer transitions 0/290 dead transitions. [2024-06-14 15:00:53,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 290 transitions, 4259 flow [2024-06-14 15:00:53,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:00:53,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:00:53,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 168 transitions. [2024-06-14 15:00:53,339 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-06-14 15:00:53,339 INFO L175 Difference]: Start difference. First operand has 182 places, 245 transitions, 2833 flow. Second operand 9 states and 168 transitions. [2024-06-14 15:00:53,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 290 transitions, 4259 flow [2024-06-14 15:00:53,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 290 transitions, 4005 flow, removed 68 selfloop flow, removed 6 redundant places. [2024-06-14 15:00:53,579 INFO L231 Difference]: Finished difference. Result has 186 places, 253 transitions, 2995 flow [2024-06-14 15:00:53,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2579, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2995, PETRI_PLACES=186, PETRI_TRANSITIONS=253} [2024-06-14 15:00:53,579 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 143 predicate places. [2024-06-14 15:00:53,580 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 253 transitions, 2995 flow [2024-06-14 15:00:53,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 15:00:53,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:00:53,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:00:53,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-06-14 15:00:53,580 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:00:53,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:00:53,581 INFO L85 PathProgramCache]: Analyzing trace with hash 163006840, now seen corresponding path program 4 times [2024-06-14 15:00:53,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:00:53,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274129832] [2024-06-14 15:00:53,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:00:53,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:00:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:01:04,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:01:04,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:01:04,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274129832] [2024-06-14 15:01:04,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274129832] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:01:04,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:01:04,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:01:04,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044136525] [2024-06-14 15:01:04,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:01:04,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:01:04,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:01:04,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:01:04,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:01:04,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:01:04,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 253 transitions, 2995 flow. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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) [2024-06-14 15:01:04,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:01:04,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:01:04,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:01:06,432 INFO L124 PetriNetUnfolderBase]: 2870/4234 cut-off events. [2024-06-14 15:01:06,432 INFO L125 PetriNetUnfolderBase]: For 342013/342013 co-relation queries the response was YES. [2024-06-14 15:01:06,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38304 conditions, 4234 events. 2870/4234 cut-off events. For 342013/342013 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 20378 event pairs, 649 based on Foata normal form. 6/4240 useless extension candidates. Maximal degree in co-relation 38214. Up to 4074 conditions per place. [2024-06-14 15:01:06,472 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 251 selfloop transitions, 30 changer transitions 0/284 dead transitions. [2024-06-14 15:01:06,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 284 transitions, 3935 flow [2024-06-14 15:01:06,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:01:06,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:01:06,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 144 transitions. [2024-06-14 15:01:06,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-06-14 15:01:06,474 INFO L175 Difference]: Start difference. First operand has 186 places, 253 transitions, 2995 flow. Second operand 8 states and 144 transitions. [2024-06-14 15:01:06,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 284 transitions, 3935 flow [2024-06-14 15:01:06,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 284 transitions, 3698 flow, removed 85 selfloop flow, removed 5 redundant places. [2024-06-14 15:01:06,738 INFO L231 Difference]: Finished difference. Result has 189 places, 256 transitions, 2954 flow [2024-06-14 15:01:06,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2758, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2954, PETRI_PLACES=189, PETRI_TRANSITIONS=256} [2024-06-14 15:01:06,739 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 146 predicate places. [2024-06-14 15:01:06,739 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 256 transitions, 2954 flow [2024-06-14 15:01:06,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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) [2024-06-14 15:01:06,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:01:06,739 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:01:06,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-06-14 15:01:06,740 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:01:06,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:01:06,740 INFO L85 PathProgramCache]: Analyzing trace with hash 162822142, now seen corresponding path program 5 times [2024-06-14 15:01:06,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:01:06,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731000558] [2024-06-14 15:01:06,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:01:06,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:01:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:01:18,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:01:18,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:01:18,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731000558] [2024-06-14 15:01:18,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731000558] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:01:18,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:01:18,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:01:18,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090060686] [2024-06-14 15:01:18,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:01:18,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:01:18,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:01:18,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:01:18,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:01:18,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 15:01:18,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 256 transitions, 2954 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-06-14 15:01:18,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:01:18,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 15:01:18,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:01:20,308 INFO L124 PetriNetUnfolderBase]: 2725/4084 cut-off events. [2024-06-14 15:01:20,308 INFO L125 PetriNetUnfolderBase]: For 333745/333809 co-relation queries the response was YES. [2024-06-14 15:01:20,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36754 conditions, 4084 events. 2725/4084 cut-off events. For 333745/333809 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 20073 event pairs, 620 based on Foata normal form. 8/4081 useless extension candidates. Maximal degree in co-relation 36662. Up to 3744 conditions per place. [2024-06-14 15:01:20,351 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 217 selfloop transitions, 19 changer transitions 0/286 dead transitions. [2024-06-14 15:01:20,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 286 transitions, 3612 flow [2024-06-14 15:01:20,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:01:20,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:01:20,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 156 transitions. [2024-06-14 15:01:20,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4126984126984127 [2024-06-14 15:01:20,355 INFO L175 Difference]: Start difference. First operand has 189 places, 256 transitions, 2954 flow. Second operand 9 states and 156 transitions. [2024-06-14 15:01:20,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 286 transitions, 3612 flow [2024-06-14 15:01:20,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 286 transitions, 3440 flow, removed 58 selfloop flow, removed 6 redundant places. [2024-06-14 15:01:20,599 INFO L231 Difference]: Finished difference. Result has 192 places, 258 transitions, 2947 flow [2024-06-14 15:01:20,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2782, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2947, PETRI_PLACES=192, PETRI_TRANSITIONS=258} [2024-06-14 15:01:20,599 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 149 predicate places. [2024-06-14 15:01:20,599 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 258 transitions, 2947 flow [2024-06-14 15:01:20,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-06-14 15:01:20,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:01:20,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:01:20,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-06-14 15:01:20,600 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:01:20,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:01:20,601 INFO L85 PathProgramCache]: Analyzing trace with hash 162999896, now seen corresponding path program 10 times [2024-06-14 15:01:20,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:01:20,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075745622] [2024-06-14 15:01:20,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:01:20,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:01:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:01:30,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:01:30,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:01:30,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075745622] [2024-06-14 15:01:30,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075745622] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:01:30,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:01:30,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:01:30,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896481458] [2024-06-14 15:01:30,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:01:30,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:01:30,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:01:30,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:01:30,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:01:31,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:01:31,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 258 transitions, 2947 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 15:01:31,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:01:31,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:01:31,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:01:33,003 INFO L124 PetriNetUnfolderBase]: 2866/4228 cut-off events. [2024-06-14 15:01:33,004 INFO L125 PetriNetUnfolderBase]: For 351123/351123 co-relation queries the response was YES. [2024-06-14 15:01:33,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37744 conditions, 4228 events. 2866/4228 cut-off events. For 351123/351123 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 20352 event pairs, 642 based on Foata normal form. 6/4234 useless extension candidates. Maximal degree in co-relation 37651. Up to 3865 conditions per place. [2024-06-14 15:01:33,050 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 233 selfloop transitions, 59 changer transitions 0/295 dead transitions. [2024-06-14 15:01:33,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 295 transitions, 3942 flow [2024-06-14 15:01:33,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:01:33,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:01:33,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2024-06-14 15:01:33,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4365079365079365 [2024-06-14 15:01:33,051 INFO L175 Difference]: Start difference. First operand has 192 places, 258 transitions, 2947 flow. Second operand 9 states and 165 transitions. [2024-06-14 15:01:33,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 295 transitions, 3942 flow [2024-06-14 15:01:33,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 295 transitions, 3795 flow, removed 56 selfloop flow, removed 7 redundant places. [2024-06-14 15:01:33,328 INFO L231 Difference]: Finished difference. Result has 194 places, 262 transitions, 3066 flow [2024-06-14 15:01:33,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2800, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3066, PETRI_PLACES=194, PETRI_TRANSITIONS=262} [2024-06-14 15:01:33,328 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 151 predicate places. [2024-06-14 15:01:33,328 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 262 transitions, 3066 flow [2024-06-14 15:01:33,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 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) [2024-06-14 15:01:33,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:01:33,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:01:33,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-06-14 15:01:33,329 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:01:33,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:01:33,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1481792305, now seen corresponding path program 2 times [2024-06-14 15:01:33,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:01:33,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459895233] [2024-06-14 15:01:33,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:01:33,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:01:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:01:45,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:01:45,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:01:45,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459895233] [2024-06-14 15:01:45,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459895233] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:01:45,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:01:45,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:01:45,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59336931] [2024-06-14 15:01:45,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:01:45,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:01:45,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:01:45,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:01:45,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:01:45,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 15:01:45,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 262 transitions, 3066 flow. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:01:45,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:01:45,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 15:01:45,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:01:46,760 INFO L124 PetriNetUnfolderBase]: 2688/4024 cut-off events. [2024-06-14 15:01:46,760 INFO L125 PetriNetUnfolderBase]: For 349612/349636 co-relation queries the response was YES. [2024-06-14 15:01:46,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36531 conditions, 4024 events. 2688/4024 cut-off events. For 349612/349636 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 19859 event pairs, 643 based on Foata normal form. 2/3987 useless extension candidates. Maximal degree in co-relation 36437. Up to 3867 conditions per place. [2024-06-14 15:01:46,799 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 239 selfloop transitions, 13 changer transitions 0/271 dead transitions. [2024-06-14 15:01:46,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 271 transitions, 3592 flow [2024-06-14 15:01:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:01:46,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:01:46,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 101 transitions. [2024-06-14 15:01:46,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4007936507936508 [2024-06-14 15:01:46,800 INFO L175 Difference]: Start difference. First operand has 194 places, 262 transitions, 3066 flow. Second operand 6 states and 101 transitions. [2024-06-14 15:01:46,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 271 transitions, 3592 flow [2024-06-14 15:01:47,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 271 transitions, 3376 flow, removed 68 selfloop flow, removed 6 redundant places. [2024-06-14 15:01:47,061 INFO L231 Difference]: Finished difference. Result has 194 places, 262 transitions, 2884 flow [2024-06-14 15:01:47,061 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2850, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2884, PETRI_PLACES=194, PETRI_TRANSITIONS=262} [2024-06-14 15:01:47,062 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 151 predicate places. [2024-06-14 15:01:47,062 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 262 transitions, 2884 flow [2024-06-14 15:01:47,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:01:47,062 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:01:47,062 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:01:47,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-06-14 15:01:47,063 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:01:47,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:01:47,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1220222261, now seen corresponding path program 1 times [2024-06-14 15:01:47,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:01:47,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977247778] [2024-06-14 15:01:47,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:01:47,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:01:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:02:02,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:02:02,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:02:02,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977247778] [2024-06-14 15:02:02,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977247778] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:02:02,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:02:02,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:02:02,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952342319] [2024-06-14 15:02:02,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:02:02,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:02:02,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:02:02,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:02:02,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:02:02,539 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:02:02,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 262 transitions, 2884 flow. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:02:02,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:02:02,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:02:02,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:02:04,167 INFO L124 PetriNetUnfolderBase]: 2859/4219 cut-off events. [2024-06-14 15:02:04,168 INFO L125 PetriNetUnfolderBase]: For 356113/356113 co-relation queries the response was YES. [2024-06-14 15:02:04,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37412 conditions, 4219 events. 2859/4219 cut-off events. For 356113/356113 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 20236 event pairs, 673 based on Foata normal form. 3/4222 useless extension candidates. Maximal degree in co-relation 37317. Up to 4151 conditions per place. [2024-06-14 15:02:04,222 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 251 selfloop transitions, 24 changer transitions 0/278 dead transitions. [2024-06-14 15:02:04,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 278 transitions, 3608 flow [2024-06-14 15:02:04,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:02:04,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:02:04,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 106 transitions. [2024-06-14 15:02:04,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42063492063492064 [2024-06-14 15:02:04,230 INFO L175 Difference]: Start difference. First operand has 194 places, 262 transitions, 2884 flow. Second operand 6 states and 106 transitions. [2024-06-14 15:02:04,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 278 transitions, 3608 flow [2024-06-14 15:02:04,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 278 transitions, 3558 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-06-14 15:02:04,556 INFO L231 Difference]: Finished difference. Result has 195 places, 265 transitions, 2937 flow [2024-06-14 15:02:04,556 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2834, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2937, PETRI_PLACES=195, PETRI_TRANSITIONS=265} [2024-06-14 15:02:04,556 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 152 predicate places. [2024-06-14 15:02:04,557 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 265 transitions, 2937 flow [2024-06-14 15:02:04,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:02:04,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:02:04,557 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:02:04,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-06-14 15:02:04,557 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:02:04,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:02:04,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1481786353, now seen corresponding path program 2 times [2024-06-14 15:02:04,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:02:04,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689738776] [2024-06-14 15:02:04,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:02:04,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:02:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:02:21,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:02:21,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:02:21,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689738776] [2024-06-14 15:02:21,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689738776] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:02:21,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:02:21,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:02:21,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6475134] [2024-06-14 15:02:21,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:02:21,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:02:21,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:02:21,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:02:21,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:02:21,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:02:21,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 265 transitions, 2937 flow. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:02:21,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:02:21,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:02:21,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:02:23,151 INFO L124 PetriNetUnfolderBase]: 2827/4172 cut-off events. [2024-06-14 15:02:23,152 INFO L125 PetriNetUnfolderBase]: For 363747/363749 co-relation queries the response was YES. [2024-06-14 15:02:23,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37300 conditions, 4172 events. 2827/4172 cut-off events. For 363747/363749 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 19997 event pairs, 673 based on Foata normal form. 1/4173 useless extension candidates. Maximal degree in co-relation 37204. Up to 4105 conditions per place. [2024-06-14 15:02:23,194 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 246 selfloop transitions, 25 changer transitions 0/274 dead transitions. [2024-06-14 15:02:23,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 274 transitions, 3501 flow [2024-06-14 15:02:23,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:02:23,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:02:23,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2024-06-14 15:02:23,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4087301587301587 [2024-06-14 15:02:23,209 INFO L175 Difference]: Start difference. First operand has 195 places, 265 transitions, 2937 flow. Second operand 6 states and 103 transitions. [2024-06-14 15:02:23,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 274 transitions, 3501 flow [2024-06-14 15:02:23,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 274 transitions, 3449 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-06-14 15:02:23,515 INFO L231 Difference]: Finished difference. Result has 197 places, 265 transitions, 2941 flow [2024-06-14 15:02:23,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2885, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2941, PETRI_PLACES=197, PETRI_TRANSITIONS=265} [2024-06-14 15:02:23,515 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 154 predicate places. [2024-06-14 15:02:23,515 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 265 transitions, 2941 flow [2024-06-14 15:02:23,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:02:23,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:02:23,516 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:02:23,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-06-14 15:02:23,516 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:02:23,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:02:23,516 INFO L85 PathProgramCache]: Analyzing trace with hash -403890604, now seen corresponding path program 1 times [2024-06-14 15:02:23,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:02:23,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5144187] [2024-06-14 15:02:23,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:02:23,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:02:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:02:35,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:02:35,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:02:35,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5144187] [2024-06-14 15:02:35,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5144187] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:02:35,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:02:35,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:02:35,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977718613] [2024-06-14 15:02:35,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:02:35,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:02:35,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:02:35,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:02:35,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:02:36,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:02:36,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 265 transitions, 2941 flow. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:02:36,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:02:36,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:02:36,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:02:38,355 INFO L124 PetriNetUnfolderBase]: 3165/4708 cut-off events. [2024-06-14 15:02:38,355 INFO L125 PetriNetUnfolderBase]: For 469972/469972 co-relation queries the response was YES. [2024-06-14 15:02:38,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44749 conditions, 4708 events. 3165/4708 cut-off events. For 469972/469972 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 23539 event pairs, 626 based on Foata normal form. 24/4732 useless extension candidates. Maximal degree in co-relation 44652. Up to 3726 conditions per place. [2024-06-14 15:02:38,402 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 277 selfloop transitions, 57 changer transitions 0/337 dead transitions. [2024-06-14 15:02:38,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 337 transitions, 4707 flow [2024-06-14 15:02:38,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 15:02:38,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 15:02:38,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 215 transitions. [2024-06-14 15:02:38,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4653679653679654 [2024-06-14 15:02:38,404 INFO L175 Difference]: Start difference. First operand has 197 places, 265 transitions, 2941 flow. Second operand 11 states and 215 transitions. [2024-06-14 15:02:38,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 337 transitions, 4707 flow [2024-06-14 15:02:38,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 337 transitions, 4641 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-06-14 15:02:38,789 INFO L231 Difference]: Finished difference. Result has 205 places, 271 transitions, 3260 flow [2024-06-14 15:02:38,789 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2875, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3260, PETRI_PLACES=205, PETRI_TRANSITIONS=271} [2024-06-14 15:02:38,789 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 162 predicate places. [2024-06-14 15:02:38,789 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 271 transitions, 3260 flow [2024-06-14 15:02:38,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:02:38,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:02:38,790 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:02:38,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-06-14 15:02:38,790 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:02:38,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:02:38,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1352398392, now seen corresponding path program 2 times [2024-06-14 15:02:38,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:02:38,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368940871] [2024-06-14 15:02:38,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:02:38,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:02:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:02:49,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:02:49,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:02:49,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368940871] [2024-06-14 15:02:49,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368940871] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:02:49,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:02:49,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:02:49,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439207801] [2024-06-14 15:02:49,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:02:49,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:02:49,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:02:49,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:02:49,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:02:50,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:02:50,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 271 transitions, 3260 flow. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:02:50,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:02:50,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:02:50,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:02:52,465 INFO L124 PetriNetUnfolderBase]: 3289/4912 cut-off events. [2024-06-14 15:02:52,465 INFO L125 PetriNetUnfolderBase]: For 532109/532109 co-relation queries the response was YES. [2024-06-14 15:02:52,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47898 conditions, 4912 events. 3289/4912 cut-off events. For 532109/532109 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 25015 event pairs, 824 based on Foata normal form. 30/4942 useless extension candidates. Maximal degree in co-relation 47798. Up to 4447 conditions per place. [2024-06-14 15:02:52,517 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 270 selfloop transitions, 56 changer transitions 0/329 dead transitions. [2024-06-14 15:02:52,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 329 transitions, 4533 flow [2024-06-14 15:02:52,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 15:02:52,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 15:02:52,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 209 transitions. [2024-06-14 15:02:52,527 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-06-14 15:02:52,527 INFO L175 Difference]: Start difference. First operand has 205 places, 271 transitions, 3260 flow. Second operand 11 states and 209 transitions. [2024-06-14 15:02:52,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 329 transitions, 4533 flow [2024-06-14 15:02:52,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 329 transitions, 4354 flow, removed 58 selfloop flow, removed 6 redundant places. [2024-06-14 15:02:52,990 INFO L231 Difference]: Finished difference. Result has 210 places, 273 transitions, 3324 flow [2024-06-14 15:02:52,990 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3081, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3324, PETRI_PLACES=210, PETRI_TRANSITIONS=273} [2024-06-14 15:02:52,990 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 167 predicate places. [2024-06-14 15:02:52,991 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 273 transitions, 3324 flow [2024-06-14 15:02:52,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:02:52,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:02:52,991 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:02:52,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-06-14 15:02:52,991 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:02:52,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:02:52,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1352394672, now seen corresponding path program 3 times [2024-06-14 15:02:52,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:02:52,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994814795] [2024-06-14 15:02:52,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:02:52,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:02:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:03:03,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:03:03,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:03:03,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994814795] [2024-06-14 15:03:03,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994814795] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:03:03,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:03:03,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:03:03,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903668089] [2024-06-14 15:03:03,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:03:03,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:03:03,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:03:03,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:03:03,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:03:04,202 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:03:04,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 273 transitions, 3324 flow. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:03:04,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:03:04,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:03:04,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:03:06,768 INFO L124 PetriNetUnfolderBase]: 3457/5180 cut-off events. [2024-06-14 15:03:06,768 INFO L125 PetriNetUnfolderBase]: For 555911/555911 co-relation queries the response was YES. [2024-06-14 15:03:06,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51113 conditions, 5180 events. 3457/5180 cut-off events. For 555911/555911 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 26858 event pairs, 868 based on Foata normal form. 24/5204 useless extension candidates. Maximal degree in co-relation 51011. Up to 4443 conditions per place. [2024-06-14 15:03:06,835 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 277 selfloop transitions, 57 changer transitions 0/337 dead transitions. [2024-06-14 15:03:06,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 337 transitions, 4832 flow [2024-06-14 15:03:06,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 15:03:06,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 15:03:06,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 212 transitions. [2024-06-14 15:03:06,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4588744588744589 [2024-06-14 15:03:06,837 INFO L175 Difference]: Start difference. First operand has 210 places, 273 transitions, 3324 flow. Second operand 11 states and 212 transitions. [2024-06-14 15:03:06,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 337 transitions, 4832 flow [2024-06-14 15:03:07,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 337 transitions, 4646 flow, removed 39 selfloop flow, removed 9 redundant places. [2024-06-14 15:03:07,479 INFO L231 Difference]: Finished difference. Result has 213 places, 277 transitions, 3474 flow [2024-06-14 15:03:07,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3138, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3474, PETRI_PLACES=213, PETRI_TRANSITIONS=277} [2024-06-14 15:03:07,480 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 170 predicate places. [2024-06-14 15:03:07,480 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 277 transitions, 3474 flow [2024-06-14 15:03:07,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:03:07,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:03:07,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:03:07,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-06-14 15:03:07,481 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:03:07,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:03:07,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1641679112, now seen corresponding path program 4 times [2024-06-14 15:03:07,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:03:07,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532019665] [2024-06-14 15:03:07,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:03:07,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:03:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:03:19,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:03:19,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:03:19,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532019665] [2024-06-14 15:03:19,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532019665] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:03:19,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:03:19,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:03:19,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728688597] [2024-06-14 15:03:19,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:03:19,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:03:19,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:03:19,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:03:19,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:03:19,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:03:19,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 277 transitions, 3474 flow. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:03:19,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:03:19,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:03:19,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:03:22,316 INFO L124 PetriNetUnfolderBase]: 3581/5384 cut-off events. [2024-06-14 15:03:22,317 INFO L125 PetriNetUnfolderBase]: For 586703/586703 co-relation queries the response was YES. [2024-06-14 15:03:22,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53174 conditions, 5384 events. 3581/5384 cut-off events. For 586703/586703 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 28289 event pairs, 942 based on Foata normal form. 30/5414 useless extension candidates. Maximal degree in co-relation 53070. Up to 4995 conditions per place. [2024-06-14 15:03:22,375 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 279 selfloop transitions, 44 changer transitions 0/326 dead transitions. [2024-06-14 15:03:22,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 326 transitions, 4627 flow [2024-06-14 15:03:22,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:03:22,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:03:22,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 186 transitions. [2024-06-14 15:03:22,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44285714285714284 [2024-06-14 15:03:22,377 INFO L175 Difference]: Start difference. First operand has 213 places, 277 transitions, 3474 flow. Second operand 10 states and 186 transitions. [2024-06-14 15:03:22,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 326 transitions, 4627 flow [2024-06-14 15:03:22,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 326 transitions, 4446 flow, removed 57 selfloop flow, removed 7 redundant places. [2024-06-14 15:03:22,954 INFO L231 Difference]: Finished difference. Result has 216 places, 279 transitions, 3520 flow [2024-06-14 15:03:22,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3293, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3520, PETRI_PLACES=216, PETRI_TRANSITIONS=279} [2024-06-14 15:03:22,955 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 173 predicate places. [2024-06-14 15:03:22,955 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 279 transitions, 3520 flow [2024-06-14 15:03:22,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:03:22,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:03:22,955 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:03:22,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-06-14 15:03:22,955 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:03:22,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:03:22,956 INFO L85 PathProgramCache]: Analyzing trace with hash -315171022, now seen corresponding path program 1 times [2024-06-14 15:03:22,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:03:22,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957116245] [2024-06-14 15:03:22,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:03:22,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:03:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:03:34,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:03:34,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:03:34,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957116245] [2024-06-14 15:03:34,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957116245] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:03:34,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:03:34,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:03:34,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46497840] [2024-06-14 15:03:34,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:03:34,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:03:34,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:03:34,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:03:34,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:03:34,232 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:03:34,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 279 transitions, 3520 flow. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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) [2024-06-14 15:03:34,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:03:34,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:03:34,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:03:36,625 INFO L124 PetriNetUnfolderBase]: 3609/5428 cut-off events. [2024-06-14 15:03:36,626 INFO L125 PetriNetUnfolderBase]: For 571421/571421 co-relation queries the response was YES. [2024-06-14 15:03:36,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53423 conditions, 5428 events. 3609/5428 cut-off events. For 571421/571421 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 28643 event pairs, 942 based on Foata normal form. 6/5434 useless extension candidates. Maximal degree in co-relation 53317. Up to 5288 conditions per place. [2024-06-14 15:03:36,683 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 281 selfloop transitions, 35 changer transitions 0/319 dead transitions. [2024-06-14 15:03:36,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 319 transitions, 4496 flow [2024-06-14 15:03:36,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:03:36,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:03:36,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 164 transitions. [2024-06-14 15:03:36,685 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43386243386243384 [2024-06-14 15:03:36,685 INFO L175 Difference]: Start difference. First operand has 216 places, 279 transitions, 3520 flow. Second operand 9 states and 164 transitions. [2024-06-14 15:03:36,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 319 transitions, 4496 flow [2024-06-14 15:03:37,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 319 transitions, 4326 flow, removed 43 selfloop flow, removed 8 redundant places. [2024-06-14 15:03:37,276 INFO L231 Difference]: Finished difference. Result has 217 places, 282 transitions, 3570 flow [2024-06-14 15:03:37,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3350, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3570, PETRI_PLACES=217, PETRI_TRANSITIONS=282} [2024-06-14 15:03:37,276 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 174 predicate places. [2024-06-14 15:03:37,276 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 282 transitions, 3570 flow [2024-06-14 15:03:37,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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) [2024-06-14 15:03:37,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:03:37,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:03:37,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-06-14 15:03:37,277 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:03:37,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:03:37,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1439086482, now seen corresponding path program 5 times [2024-06-14 15:03:37,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:03:37,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961514046] [2024-06-14 15:03:37,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:03:37,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:03:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:03:51,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:03:51,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:03:51,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961514046] [2024-06-14 15:03:51,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961514046] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:03:51,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:03:51,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:03:51,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676060060] [2024-06-14 15:03:51,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:03:51,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:03:51,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:03:51,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:03:51,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:03:51,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:03:51,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 282 transitions, 3570 flow. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:03:51,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:03:51,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:03:51,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:03:53,920 INFO L124 PetriNetUnfolderBase]: 3705/5588 cut-off events. [2024-06-14 15:03:53,920 INFO L125 PetriNetUnfolderBase]: For 612393/612393 co-relation queries the response was YES. [2024-06-14 15:03:53,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54657 conditions, 5588 events. 3705/5588 cut-off events. For 612393/612393 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 29736 event pairs, 915 based on Foata normal form. 24/5612 useless extension candidates. Maximal degree in co-relation 54550. Up to 4722 conditions per place. [2024-06-14 15:03:53,984 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 291 selfloop transitions, 45 changer transitions 0/339 dead transitions. [2024-06-14 15:03:53,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 339 transitions, 5182 flow [2024-06-14 15:03:53,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:03:53,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:03:53,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 190 transitions. [2024-06-14 15:03:53,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-06-14 15:03:53,985 INFO L175 Difference]: Start difference. First operand has 217 places, 282 transitions, 3570 flow. Second operand 10 states and 190 transitions. [2024-06-14 15:03:53,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 339 transitions, 5182 flow [2024-06-14 15:03:54,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 339 transitions, 4986 flow, removed 65 selfloop flow, removed 7 redundant places. [2024-06-14 15:03:54,631 INFO L231 Difference]: Finished difference. Result has 221 places, 286 transitions, 3704 flow [2024-06-14 15:03:54,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3374, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3704, PETRI_PLACES=221, PETRI_TRANSITIONS=286} [2024-06-14 15:03:54,631 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 178 predicate places. [2024-06-14 15:03:54,631 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 286 transitions, 3704 flow [2024-06-14 15:03:54,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:03:54,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:03:54,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:03:54,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-06-14 15:03:54,632 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:03:54,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:03:54,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1439234352, now seen corresponding path program 6 times [2024-06-14 15:03:54,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:03:54,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715896853] [2024-06-14 15:03:54,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:03:54,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:03:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:04:05,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:04:05,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:04:05,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715896853] [2024-06-14 15:04:05,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715896853] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:04:05,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:04:05,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:04:05,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417649936] [2024-06-14 15:04:05,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:04:05,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:04:05,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:04:05,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:04:05,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:04:06,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:04:06,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 286 transitions, 3704 flow. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:04:06,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:04:06,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:04:06,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:04:08,435 INFO L124 PetriNetUnfolderBase]: 3718/5611 cut-off events. [2024-06-14 15:04:08,436 INFO L125 PetriNetUnfolderBase]: For 633116/633116 co-relation queries the response was YES. [2024-06-14 15:04:08,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54228 conditions, 5611 events. 3718/5611 cut-off events. For 633116/633116 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 29877 event pairs, 947 based on Foata normal form. 30/5641 useless extension candidates. Maximal degree in co-relation 54119. Up to 5285 conditions per place. [2024-06-14 15:04:08,495 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 293 selfloop transitions, 38 changer transitions 0/334 dead transitions. [2024-06-14 15:04:08,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 334 transitions, 4778 flow [2024-06-14 15:04:08,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:04:08,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:04:08,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 184 transitions. [2024-06-14 15:04:08,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4380952380952381 [2024-06-14 15:04:08,497 INFO L175 Difference]: Start difference. First operand has 221 places, 286 transitions, 3704 flow. Second operand 10 states and 184 transitions. [2024-06-14 15:04:08,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 334 transitions, 4778 flow [2024-06-14 15:04:09,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 334 transitions, 4602 flow, removed 63 selfloop flow, removed 6 redundant places. [2024-06-14 15:04:09,037 INFO L231 Difference]: Finished difference. Result has 225 places, 288 transitions, 3754 flow [2024-06-14 15:04:09,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3530, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3754, PETRI_PLACES=225, PETRI_TRANSITIONS=288} [2024-06-14 15:04:09,038 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 182 predicate places. [2024-06-14 15:04:09,038 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 288 transitions, 3754 flow [2024-06-14 15:04:09,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:04:09,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:04:09,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:04:09,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-06-14 15:04:09,038 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:04:09,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:04:09,039 INFO L85 PathProgramCache]: Analyzing trace with hash 723863468, now seen corresponding path program 2 times [2024-06-14 15:04:09,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:04:09,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338863383] [2024-06-14 15:04:09,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:04:09,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:04:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:04:20,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:04:20,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:04:20,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338863383] [2024-06-14 15:04:20,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338863383] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:04:20,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:04:20,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:04:20,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212547106] [2024-06-14 15:04:20,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:04:20,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:04:20,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:04:20,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:04:20,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:04:20,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:04:20,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 288 transitions, 3754 flow. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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) [2024-06-14 15:04:20,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:04:20,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:04:20,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:04:22,933 INFO L124 PetriNetUnfolderBase]: 3746/5657 cut-off events. [2024-06-14 15:04:22,933 INFO L125 PetriNetUnfolderBase]: For 584199/584201 co-relation queries the response was YES. [2024-06-14 15:04:22,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54269 conditions, 5657 events. 3746/5657 cut-off events. For 584199/584201 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 30248 event pairs, 836 based on Foata normal form. 8/5665 useless extension candidates. Maximal degree in co-relation 54158. Up to 5116 conditions per place. [2024-06-14 15:04:23,000 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 244 selfloop transitions, 81 changer transitions 0/328 dead transitions. [2024-06-14 15:04:23,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 328 transitions, 4884 flow [2024-06-14 15:04:23,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:04:23,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:04:23,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 171 transitions. [2024-06-14 15:04:23,001 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-06-14 15:04:23,001 INFO L175 Difference]: Start difference. First operand has 225 places, 288 transitions, 3754 flow. Second operand 9 states and 171 transitions. [2024-06-14 15:04:23,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 328 transitions, 4884 flow [2024-06-14 15:04:23,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 328 transitions, 4720 flow, removed 46 selfloop flow, removed 8 redundant places. [2024-06-14 15:04:23,668 INFO L231 Difference]: Finished difference. Result has 226 places, 291 transitions, 3912 flow [2024-06-14 15:04:23,668 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3590, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3912, PETRI_PLACES=226, PETRI_TRANSITIONS=291} [2024-06-14 15:04:23,669 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 183 predicate places. [2024-06-14 15:04:23,669 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 291 transitions, 3912 flow [2024-06-14 15:04:23,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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) [2024-06-14 15:04:23,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:04:23,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:04:23,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-06-14 15:04:23,669 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:04:23,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:04:23,670 INFO L85 PathProgramCache]: Analyzing trace with hash 723870908, now seen corresponding path program 3 times [2024-06-14 15:04:23,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:04:23,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933074702] [2024-06-14 15:04:23,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:04:23,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:04:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:04:34,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:04:34,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:04:34,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933074702] [2024-06-14 15:04:34,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933074702] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:04:34,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:04:34,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:04:34,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227503349] [2024-06-14 15:04:34,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:04:34,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:04:34,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:04:34,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:04:34,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:04:34,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:04:34,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 291 transitions, 3912 flow. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:04:34,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:04:34,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:04:34,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:04:37,062 INFO L124 PetriNetUnfolderBase]: 3812/5759 cut-off events. [2024-06-14 15:04:37,062 INFO L125 PetriNetUnfolderBase]: For 615106/615108 co-relation queries the response was YES. [2024-06-14 15:04:37,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55583 conditions, 5759 events. 3812/5759 cut-off events. For 615106/615108 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 30973 event pairs, 832 based on Foata normal form. 8/5767 useless extension candidates. Maximal degree in co-relation 55471. Up to 5098 conditions per place. [2024-06-14 15:04:37,135 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 241 selfloop transitions, 92 changer transitions 0/336 dead transitions. [2024-06-14 15:04:37,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 336 transitions, 5450 flow [2024-06-14 15:04:37,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:04:37,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:04:37,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2024-06-14 15:04:37,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4576719576719577 [2024-06-14 15:04:37,137 INFO L175 Difference]: Start difference. First operand has 226 places, 291 transitions, 3912 flow. Second operand 9 states and 173 transitions. [2024-06-14 15:04:37,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 336 transitions, 5450 flow [2024-06-14 15:04:37,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 336 transitions, 5148 flow, removed 72 selfloop flow, removed 7 redundant places. [2024-06-14 15:04:37,890 INFO L231 Difference]: Finished difference. Result has 228 places, 297 transitions, 4112 flow [2024-06-14 15:04:37,890 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3610, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4112, PETRI_PLACES=228, PETRI_TRANSITIONS=297} [2024-06-14 15:04:37,890 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 185 predicate places. [2024-06-14 15:04:37,891 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 297 transitions, 4112 flow [2024-06-14 15:04:37,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:04:37,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:04:37,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:04:37,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-06-14 15:04:37,891 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:04:37,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:04:37,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1030755620, now seen corresponding path program 7 times [2024-06-14 15:04:37,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:04:37,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796919437] [2024-06-14 15:04:37,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:04:37,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:04:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:04:47,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:04:47,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:04:47,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796919437] [2024-06-14 15:04:47,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796919437] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:04:47,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:04:47,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:04:47,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675653032] [2024-06-14 15:04:47,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:04:47,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:04:47,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:04:47,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:04:47,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:04:47,587 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:04:47,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 297 transitions, 4112 flow. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:04:47,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:04:47,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:04:47,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:04:50,179 INFO L124 PetriNetUnfolderBase]: 3936/5963 cut-off events. [2024-06-14 15:04:50,180 INFO L125 PetriNetUnfolderBase]: For 703192/703194 co-relation queries the response was YES. [2024-06-14 15:04:50,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58095 conditions, 5963 events. 3936/5963 cut-off events. For 703192/703194 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 32441 event pairs, 861 based on Foata normal form. 30/5993 useless extension candidates. Maximal degree in co-relation 57982. Up to 5182 conditions per place. [2024-06-14 15:04:50,272 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 244 selfloop transitions, 98 changer transitions 0/345 dead transitions. [2024-06-14 15:04:50,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 345 transitions, 5340 flow [2024-06-14 15:04:50,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:04:50,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:04:50,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 192 transitions. [2024-06-14 15:04:50,273 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45714285714285713 [2024-06-14 15:04:50,273 INFO L175 Difference]: Start difference. First operand has 228 places, 297 transitions, 4112 flow. Second operand 10 states and 192 transitions. [2024-06-14 15:04:50,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 345 transitions, 5340 flow [2024-06-14 15:04:51,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 345 transitions, 5042 flow, removed 90 selfloop flow, removed 6 redundant places. [2024-06-14 15:04:51,319 INFO L231 Difference]: Finished difference. Result has 232 places, 299 transitions, 4162 flow [2024-06-14 15:04:51,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3816, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4162, PETRI_PLACES=232, PETRI_TRANSITIONS=299} [2024-06-14 15:04:51,319 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 189 predicate places. [2024-06-14 15:04:51,319 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 299 transitions, 4162 flow [2024-06-14 15:04:51,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:04:51,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:04:51,320 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:04:51,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-06-14 15:04:51,320 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:04:51,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:04:51,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1036112048, now seen corresponding path program 4 times [2024-06-14 15:04:51,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:04:51,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583077279] [2024-06-14 15:04:51,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:04:51,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:04:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:05:02,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:05:02,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:05:02,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583077279] [2024-06-14 15:05:02,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583077279] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:05:02,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:05:02,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:05:02,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951306694] [2024-06-14 15:05:02,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:05:02,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:05:02,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:05:02,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:05:02,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:05:03,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:05:03,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 299 transitions, 4162 flow. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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) [2024-06-14 15:05:03,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:05:03,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:05:03,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:05:05,856 INFO L124 PetriNetUnfolderBase]: 3926/5948 cut-off events. [2024-06-14 15:05:05,857 INFO L125 PetriNetUnfolderBase]: For 657117/657121 co-relation queries the response was YES. [2024-06-14 15:05:05,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57836 conditions, 5948 events. 3926/5948 cut-off events. For 657117/657121 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 32328 event pairs, 857 based on Foata normal form. 10/5958 useless extension candidates. Maximal degree in co-relation 57722. Up to 5408 conditions per place. [2024-06-14 15:05:05,928 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 259 selfloop transitions, 79 changer transitions 0/341 dead transitions. [2024-06-14 15:05:05,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 341 transitions, 5320 flow [2024-06-14 15:05:05,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:05:05,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:05:05,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 188 transitions. [2024-06-14 15:05:05,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44761904761904764 [2024-06-14 15:05:05,929 INFO L175 Difference]: Start difference. First operand has 232 places, 299 transitions, 4162 flow. Second operand 10 states and 188 transitions. [2024-06-14 15:05:05,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 341 transitions, 5320 flow [2024-06-14 15:05:06,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 341 transitions, 4928 flow, removed 100 selfloop flow, removed 8 redundant places. [2024-06-14 15:05:06,674 INFO L231 Difference]: Finished difference. Result has 234 places, 299 transitions, 3936 flow [2024-06-14 15:05:06,674 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3770, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3936, PETRI_PLACES=234, PETRI_TRANSITIONS=299} [2024-06-14 15:05:06,675 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 191 predicate places. [2024-06-14 15:05:06,675 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 299 transitions, 3936 flow [2024-06-14 15:05:06,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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) [2024-06-14 15:05:06,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:05:06,675 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:05:06,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-06-14 15:05:06,675 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:05:06,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:05:06,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1036118000, now seen corresponding path program 8 times [2024-06-14 15:05:06,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:05:06,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647816757] [2024-06-14 15:05:06,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:05:06,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:05:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:05:16,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:05:16,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:05:16,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647816757] [2024-06-14 15:05:16,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647816757] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:05:16,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:05:16,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:05:16,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202235863] [2024-06-14 15:05:16,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:05:16,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:05:16,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:05:16,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:05:16,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:05:16,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-14 15:05:16,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 299 transitions, 3936 flow. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:05:16,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:05:16,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-14 15:05:16,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:05:19,594 INFO L124 PetriNetUnfolderBase]: 4050/6153 cut-off events. [2024-06-14 15:05:19,594 INFO L125 PetriNetUnfolderBase]: For 717366/717368 co-relation queries the response was YES. [2024-06-14 15:05:19,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59047 conditions, 6153 events. 4050/6153 cut-off events. For 717366/717368 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 33809 event pairs, 915 based on Foata normal form. 30/6183 useless extension candidates. Maximal degree in co-relation 58932. Up to 5372 conditions per place. [2024-06-14 15:05:19,672 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 252 selfloop transitions, 93 changer transitions 0/348 dead transitions. [2024-06-14 15:05:19,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 348 transitions, 5308 flow [2024-06-14 15:05:19,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:05:19,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:05:19,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 193 transitions. [2024-06-14 15:05:19,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4595238095238095 [2024-06-14 15:05:19,675 INFO L175 Difference]: Start difference. First operand has 234 places, 299 transitions, 3936 flow. Second operand 10 states and 193 transitions. [2024-06-14 15:05:19,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 348 transitions, 5308 flow [2024-06-14 15:05:20,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 348 transitions, 5135 flow, removed 8 selfloop flow, removed 8 redundant places. [2024-06-14 15:05:20,486 INFO L231 Difference]: Finished difference. Result has 236 places, 301 transitions, 4103 flow [2024-06-14 15:05:20,487 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3763, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4103, PETRI_PLACES=236, PETRI_TRANSITIONS=301} [2024-06-14 15:05:20,487 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 193 predicate places. [2024-06-14 15:05:20,487 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 301 transitions, 4103 flow [2024-06-14 15:05:20,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-06-14 15:05:20,488 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:05:20,488 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:05:20,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-06-14 15:05:20,488 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:05:20,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:05:20,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1036262150, now seen corresponding path program 9 times [2024-06-14 15:05:20,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:05:20,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688614408] [2024-06-14 15:05:20,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:05:20,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:05:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Killed by 15