./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 bcb38a6f 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-bcb38a6-m [2024-06-04 16:58:39,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-04 16:58:39,508 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-04 16:58:39,511 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-04 16:58:39,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-04 16:58:39,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-04 16:58:39,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-04 16:58:39,566 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-04 16:58:39,567 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-04 16:58:39,570 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-04 16:58:39,570 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-04 16:58:39,570 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-04 16:58:39,571 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-04 16:58:39,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-04 16:58:39,572 INFO L153 SettingsManager]: * Use SBE=true [2024-06-04 16:58:39,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-04 16:58:39,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-04 16:58:39,573 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-04 16:58:39,573 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-04 16:58:39,573 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-04 16:58:39,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-04 16:58:39,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-04 16:58:39,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-04 16:58:39,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-04 16:58:39,574 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-04 16:58:39,574 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-04 16:58:39,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-04 16:58:39,575 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-04 16:58:39,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-04 16:58:39,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-04 16:58:39,576 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-04 16:58:39,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-04 16:58:39,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 16:58:39,577 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-04 16:58:39,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-04 16:58:39,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-04 16:58:39,577 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-04 16:58:39,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-04 16:58:39,578 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-04 16:58:39,578 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-04 16:58:39,578 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-04 16:58:39,578 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-04 16:58:39,578 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-04 16:58:39,579 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-04 16:58:39,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-04 16:58:39,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-04 16:58:39,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-04 16:58:39,764 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-04 16:58:39,764 INFO L274 PluginConnector]: CDTParser initialized [2024-06-04 16:58:39,765 INFO L431 ainManager$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 [2024-06-04 16:58:40,901 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-04 16:58:41,113 INFO L384 CDTParser]: Found 1 translation units. [2024-06-04 16:58:41,113 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 [2024-06-04 16:58:41,129 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/276b64e75/d7c82ae41483404b8dd65431700d6464/FLAG6586fa1eb [2024-06-04 16:58:41,139 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/276b64e75/d7c82ae41483404b8dd65431700d6464 [2024-06-04 16:58:41,141 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-04 16:58:41,142 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-04 16:58:41,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.yml/witness.yml [2024-06-04 16:58:41,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-04 16:58:41,311 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-04 16:58:41,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-04 16:58:41,312 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-04 16:58:41,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-04 16:58:41,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 04:58:41" (1/2) ... [2024-06-04 16:58:41,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1833a91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:58:41, skipping insertion in model container [2024-06-04 16:58:41,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 04:58:41" (1/2) ... [2024-06-04 16:58:41,319 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@449fdcea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:58:41, skipping insertion in model container [2024-06-04 16:58:41,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:58:41" (2/2) ... [2024-06-04 16:58:41,319 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1833a91a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:58:41, skipping insertion in model container [2024-06-04 16:58:41,319 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:58:41" (2/2) ... [2024-06-04 16:58:41,320 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-04 16:58:41,380 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-04 16:58:41,382 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))) [2024-06-04 16:58:41,382 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))) [2024-06-04 16:58:41,383 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))) [2024-06-04 16:58:41,384 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-04 16:58:41,384 INFO L106 edCorrectnessWitness]: ghost_update [L839-L839] multithreaded = 1; [2024-06-04 16:58:41,424 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-04 16:58:41,749 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 16:58:41,757 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-04 16:58:42,158 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 16:58:42,186 INFO L206 MainTranslator]: Completed translation [2024-06-04 16:58:42,187 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:58:42 WrapperNode [2024-06-04 16:58:42,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-04 16:58:42,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-04 16:58:42,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-04 16:58:42,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-04 16:58:42,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:58:42" (1/1) ... [2024-06-04 16:58:42,216 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:58:42" (1/1) ... [2024-06-04 16:58:42,288 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 126 [2024-06-04 16:58:42,289 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-04 16:58:42,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-04 16:58:42,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-04 16:58:42,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-04 16:58:42,298 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:58:42" (1/1) ... [2024-06-04 16:58:42,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:58:42" (1/1) ... [2024-06-04 16:58:42,313 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:58:42" (1/1) ... [2024-06-04 16:58:42,438 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]. [2024-06-04 16:58:42,439 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:58:42" (1/1) ... [2024-06-04 16:58:42,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:58:42" (1/1) ... [2024-06-04 16:58:42,502 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:58:42" (1/1) ... [2024-06-04 16:58:42,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:58:42" (1/1) ... [2024-06-04 16:58:42,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:58:42" (1/1) ... [2024-06-04 16:58:42,532 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:58:42" (1/1) ... [2024-06-04 16:58:42,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-04 16:58:42,561 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-04 16:58:42,561 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-04 16:58:42,561 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-04 16:58:42,562 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:58:42" (1/1) ... [2024-06-04 16:58:42,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 16:58:42,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-04 16:58:42,583 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) [2024-06-04 16:58:42,601 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 [2024-06-04 16:58:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-04 16:58:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-04 16:58:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-04 16:58:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-04 16:58:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-04 16:58:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-04 16:58:42,613 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-04 16:58:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-04 16:58:42,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-04 16:58:42,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-04 16:58:42,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-04 16:58:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-04 16:58:42,614 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-04 16:58:42,712 INFO L244 CfgBuilder]: Building ICFG [2024-06-04 16:58:42,714 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-04 16:58:43,928 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-04 16:58:43,929 INFO L293 CfgBuilder]: Performing block encoding [2024-06-04 16:58:44,225 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-04 16:58:44,226 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-04 16:58:44,227 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 04:58:44 BoogieIcfgContainer [2024-06-04 16:58:44,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-04 16:58:44,229 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-04 16:58:44,229 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-04 16:58:44,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-04 16:58:44,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.06 04:58:41" (1/4) ... [2024-06-04 16:58:44,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb92236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 04:58:44, skipping insertion in model container [2024-06-04 16:58:44,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:58:41" (2/4) ... [2024-06-04 16:58:44,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb92236 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 04:58:44, skipping insertion in model container [2024-06-04 16:58:44,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:58:42" (3/4) ... [2024-06-04 16:58:44,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb92236 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 04:58:44, skipping insertion in model container [2024-06-04 16:58:44,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 04:58:44" (4/4) ... [2024-06-04 16:58:44,234 INFO L112 eAbstractionObserver]: Analyzing ICFG mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2024-06-04 16:58:44,246 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-04 16:58:44,246 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-04 16:58:44,247 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-04 16:58:44,342 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-04 16:58:44,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 42 transitions, 96 flow [2024-06-04 16:58:44,416 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2024-06-04 16:58:44,416 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 16:58:44,419 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. [2024-06-04 16:58:44,419 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 42 transitions, 96 flow [2024-06-04 16:58:44,422 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 33 transitions, 75 flow [2024-06-04 16:58:44,433 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-04 16:58:44,439 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;@2954d086, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-04 16:58:44,439 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-04 16:58:44,447 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-04 16:58:44,447 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-06-04 16:58:44,447 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 16:58:44,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:58:44,448 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-04 16:58:44,448 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)] === [2024-06-04 16:58:44,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:58:44,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1315925462, now seen corresponding path program 1 times [2024-06-04 16:58:44,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:58:44,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066935967] [2024-06-04 16:58:44,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:58:44,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:58:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:58:50,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:58:50,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:58:50,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066935967] [2024-06-04 16:58:50,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066935967] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:58:50,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:58:50,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-04 16:58:50,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359903489] [2024-06-04 16:58:50,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:58:50,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-04 16:58:50,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:58:50,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-04 16:58:50,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-04 16:58:50,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2024-06-04 16:58:50,334 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) [2024-06-04 16:58:50,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:58:50,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2024-06-04 16:58:50,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:58:51,204 INFO L124 PetriNetUnfolderBase]: 1359/2100 cut-off events. [2024-06-04 16:58:51,205 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-06-04 16:58:51,210 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. [2024-06-04 16:58:51,219 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 34 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2024-06-04 16:58:51,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 43 transitions, 177 flow [2024-06-04 16:58:51,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-04 16:58:51,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-04 16:58:51,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-06-04 16:58:51,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2024-06-04 16:58:51,230 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 75 flow. Second operand 3 states and 74 transitions. [2024-06-04 16:58:51,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 43 transitions, 177 flow [2024-06-04 16:58:51,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 43 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-04 16:58:51,233 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 102 flow [2024-06-04 16:58:51,235 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} [2024-06-04 16:58:51,237 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2024-06-04 16:58:51,238 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 102 flow [2024-06-04 16:58:51,238 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) [2024-06-04 16:58:51,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:58:51,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:58:51,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-04 16:58:51,238 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)] === [2024-06-04 16:58:51,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:58:51,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1883946295, now seen corresponding path program 1 times [2024-06-04 16:58:51,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:58:51,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474633946] [2024-06-04 16:58:51,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:58:51,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:58:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:58:55,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:58:55,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:58:55,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474633946] [2024-06-04 16:58:55,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474633946] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:58:55,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:58:55,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-04 16:58:55,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105545082] [2024-06-04 16:58:55,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:58:55,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-04 16:58:55,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:58:55,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-04 16:58:55,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-04 16:58:56,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2024-06-04 16:58:56,121 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) [2024-06-04 16:58:56,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:58:56,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2024-06-04 16:58:56,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:58:56,888 INFO L124 PetriNetUnfolderBase]: 1353/2091 cut-off events. [2024-06-04 16:58:56,888 INFO L125 PetriNetUnfolderBase]: For 396/396 co-relation queries the response was YES. [2024-06-04 16:58:56,891 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. [2024-06-04 16:58:56,899 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 41 selfloop transitions, 7 changer transitions 0/53 dead transitions. [2024-06-04 16:58:56,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 53 transitions, 244 flow [2024-06-04 16:58:56,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-04 16:58:56,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-04 16:58:56,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-06-04 16:58:56,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5654761904761905 [2024-06-04 16:58:56,903 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 102 flow. Second operand 4 states and 95 transitions. [2024-06-04 16:58:56,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 53 transitions, 244 flow [2024-06-04 16:58:56,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 53 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-04 16:58:56,906 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 138 flow [2024-06-04 16:58:56,906 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} [2024-06-04 16:58:56,907 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2024-06-04 16:58:56,907 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 138 flow [2024-06-04 16:58:56,907 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) [2024-06-04 16:58:56,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:58:56,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:58:56,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-04 16:58:56,910 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)] === [2024-06-04 16:58:56,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:58:56,910 INFO L85 PathProgramCache]: Analyzing trace with hash 2003849064, now seen corresponding path program 1 times [2024-06-04 16:58:56,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:58:56,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388171737] [2024-06-04 16:58:56,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:58:56,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:58:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:59:02,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:59:02,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:59:02,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388171737] [2024-06-04 16:59:02,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388171737] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:59:02,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:59:02,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 16:59:02,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67647613] [2024-06-04 16:59:02,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:59:02,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-04 16:59:02,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:59:02,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-04 16:59:02,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-04 16:59:02,290 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-04 16:59:02,290 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) [2024-06-04 16:59:02,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:59:02,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-04 16:59:02,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:59:03,460 INFO L124 PetriNetUnfolderBase]: 1641/2511 cut-off events. [2024-06-04 16:59:03,460 INFO L125 PetriNetUnfolderBase]: For 1285/1285 co-relation queries the response was YES. [2024-06-04 16:59:03,464 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. [2024-06-04 16:59:03,472 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 56 selfloop transitions, 13 changer transitions 0/73 dead transitions. [2024-06-04 16:59:03,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 73 transitions, 378 flow [2024-06-04 16:59:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 16:59:03,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 16:59:03,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2024-06-04 16:59:03,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-06-04 16:59:03,474 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 138 flow. Second operand 6 states and 132 transitions. [2024-06-04 16:59:03,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 73 transitions, 378 flow [2024-06-04 16:59:03,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 73 transitions, 358 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-06-04 16:59:03,477 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 196 flow [2024-06-04 16:59:03,477 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} [2024-06-04 16:59:03,477 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 8 predicate places. [2024-06-04 16:59:03,478 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 196 flow [2024-06-04 16:59:03,478 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) [2024-06-04 16:59:03,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:59:03,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:59:03,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-04 16:59:03,478 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)] === [2024-06-04 16:59:03,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:59:03,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1989780140, now seen corresponding path program 1 times [2024-06-04 16:59:03,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:59:03,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224408075] [2024-06-04 16:59:03,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:59:03,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:59:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:59:08,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:59:08,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:59:08,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224408075] [2024-06-04 16:59:08,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224408075] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:59:08,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:59:08,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-04 16:59:08,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976790543] [2024-06-04 16:59:08,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:59:08,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-04 16:59:08,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:59:08,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-04 16:59:08,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-04 16:59:09,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-04 16:59:09,098 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) [2024-06-04 16:59:09,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:59:09,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-04 16:59:09,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:59:10,208 INFO L124 PetriNetUnfolderBase]: 1632/2496 cut-off events. [2024-06-04 16:59:10,209 INFO L125 PetriNetUnfolderBase]: For 2539/2539 co-relation queries the response was YES. [2024-06-04 16:59:10,213 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. [2024-06-04 16:59:10,222 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 60 selfloop transitions, 15 changer transitions 0/79 dead transitions. [2024-06-04 16:59:10,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 79 transitions, 438 flow [2024-06-04 16:59:10,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 16:59:10,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 16:59:10,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 148 transitions. [2024-06-04 16:59:10,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5034013605442177 [2024-06-04 16:59:10,224 INFO L175 Difference]: Start difference. First operand has 51 places, 45 transitions, 196 flow. Second operand 7 states and 148 transitions. [2024-06-04 16:59:10,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 79 transitions, 438 flow [2024-06-04 16:59:10,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 79 transitions, 410 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-06-04 16:59:10,228 INFO L231 Difference]: Finished difference. Result has 54 places, 46 transitions, 217 flow [2024-06-04 16:59:10,228 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} [2024-06-04 16:59:10,228 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 11 predicate places. [2024-06-04 16:59:10,228 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 46 transitions, 217 flow [2024-06-04 16:59:10,229 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) [2024-06-04 16:59:10,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:59:10,229 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:59:10,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-04 16:59:10,229 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)] === [2024-06-04 16:59:10,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:59:10,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1263716854, now seen corresponding path program 1 times [2024-06-04 16:59:10,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:59:10,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905730193] [2024-06-04 16:59:10,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:59:10,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:59:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:59:21,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:59:21,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:59:21,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905730193] [2024-06-04 16:59:21,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905730193] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:59:21,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:59:21,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 16:59:21,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220420916] [2024-06-04 16:59:21,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:59:21,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-04 16:59:21,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:59:21,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-04 16:59:21,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-04 16:59:21,857 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 16:59:21,857 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) [2024-06-04 16:59:21,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:59:21,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 16:59:21,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:59:22,900 INFO L124 PetriNetUnfolderBase]: 1627/2501 cut-off events. [2024-06-04 16:59:22,901 INFO L125 PetriNetUnfolderBase]: For 3802/3802 co-relation queries the response was YES. [2024-06-04 16:59:22,905 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. [2024-06-04 16:59:22,914 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 48 selfloop transitions, 8 changer transitions 0/60 dead transitions. [2024-06-04 16:59:22,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 60 transitions, 373 flow [2024-06-04 16:59:22,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 16:59:22,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 16:59:22,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 92 transitions. [2024-06-04 16:59:22,916 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4380952380952381 [2024-06-04 16:59:22,916 INFO L175 Difference]: Start difference. First operand has 54 places, 46 transitions, 217 flow. Second operand 5 states and 92 transitions. [2024-06-04 16:59:22,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 60 transitions, 373 flow [2024-06-04 16:59:22,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 60 transitions, 334 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-06-04 16:59:22,919 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 224 flow [2024-06-04 16:59:22,920 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} [2024-06-04 16:59:22,920 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 11 predicate places. [2024-06-04 16:59:22,920 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 224 flow [2024-06-04 16:59:22,921 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) [2024-06-04 16:59:22,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:59:22,921 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:59:22,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-04 16:59:22,921 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)] === [2024-06-04 16:59:22,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:59:22,922 INFO L85 PathProgramCache]: Analyzing trace with hash 557161464, now seen corresponding path program 1 times [2024-06-04 16:59:22,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:59:22,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026759586] [2024-06-04 16:59:22,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:59:22,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:59:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:59:35,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:59:35,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:59:35,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026759586] [2024-06-04 16:59:35,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026759586] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:59:35,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:59:35,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-04 16:59:35,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688587174] [2024-06-04 16:59:35,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:59:35,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-04 16:59:35,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:59:35,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-04 16:59:35,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-04 16:59:35,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 16:59:35,307 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) [2024-06-04 16:59:35,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:59:35,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 16:59:35,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:59:36,558 INFO L124 PetriNetUnfolderBase]: 1883/2795 cut-off events. [2024-06-04 16:59:36,559 INFO L125 PetriNetUnfolderBase]: For 6041/6041 co-relation queries the response was YES. [2024-06-04 16:59:36,563 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. [2024-06-04 16:59:36,574 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 59 selfloop transitions, 17 changer transitions 0/79 dead transitions. [2024-06-04 16:59:36,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 79 transitions, 496 flow [2024-06-04 16:59:36,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 16:59:36,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 16:59:36,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 111 transitions. [2024-06-04 16:59:36,576 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2024-06-04 16:59:36,576 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 224 flow. Second operand 6 states and 111 transitions. [2024-06-04 16:59:36,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 79 transitions, 496 flow [2024-06-04 16:59:36,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 79 transitions, 474 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-06-04 16:59:36,580 INFO L231 Difference]: Finished difference. Result has 59 places, 60 transitions, 327 flow [2024-06-04 16:59:36,580 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} [2024-06-04 16:59:36,583 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 16 predicate places. [2024-06-04 16:59:36,583 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 60 transitions, 327 flow [2024-06-04 16:59:36,583 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) [2024-06-04 16:59:36,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:59:36,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:59:36,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-04 16:59:36,584 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)] === [2024-06-04 16:59:36,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:59:36,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1044008201, now seen corresponding path program 1 times [2024-06-04 16:59:36,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:59:36,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008816019] [2024-06-04 16:59:36,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:59:36,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:59:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:59:45,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:59:45,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:59:45,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008816019] [2024-06-04 16:59:45,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008816019] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:59:45,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:59:45,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-04 16:59:45,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690533576] [2024-06-04 16:59:45,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:59:45,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-04 16:59:45,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:59:45,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-04 16:59:45,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-04 16:59:45,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 16:59:45,512 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) [2024-06-04 16:59:45,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:59:45,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 16:59:45,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:59:46,484 INFO L124 PetriNetUnfolderBase]: 1698/2615 cut-off events. [2024-06-04 16:59:46,485 INFO L125 PetriNetUnfolderBase]: For 8055/8073 co-relation queries the response was YES. [2024-06-04 16:59:46,489 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. [2024-06-04 16:59:46,498 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 63 selfloop transitions, 16 changer transitions 0/86 dead transitions. [2024-06-04 16:59:46,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 86 transitions, 607 flow [2024-06-04 16:59:46,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 16:59:46,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 16:59:46,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2024-06-04 16:59:46,499 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45634920634920634 [2024-06-04 16:59:46,499 INFO L175 Difference]: Start difference. First operand has 59 places, 60 transitions, 327 flow. Second operand 6 states and 115 transitions. [2024-06-04 16:59:46,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 86 transitions, 607 flow [2024-06-04 16:59:46,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 86 transitions, 591 flow, removed 7 selfloop flow, removed 1 redundant places. [2024-06-04 16:59:46,504 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 405 flow [2024-06-04 16:59:46,504 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} [2024-06-04 16:59:46,505 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2024-06-04 16:59:46,505 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 405 flow [2024-06-04 16:59:46,505 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) [2024-06-04 16:59:46,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:59:46,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:59:46,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-04 16:59:46,506 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)] === [2024-06-04 16:59:46,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:59:46,506 INFO L85 PathProgramCache]: Analyzing trace with hash 130675729, now seen corresponding path program 2 times [2024-06-04 16:59:46,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:59:46,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986937679] [2024-06-04 16:59:46,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:59:46,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:59:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:59:55,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:59:55,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:59:55,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986937679] [2024-06-04 16:59:55,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986937679] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:59:55,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:59:55,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-04 16:59:55,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374603117] [2024-06-04 16:59:55,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:59:55,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-04 16:59:55,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:59:55,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-04 16:59:55,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-04 16:59:55,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 16:59:55,261 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) [2024-06-04 16:59:55,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:59:55,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 16:59:55,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:59:56,322 INFO L124 PetriNetUnfolderBase]: 1693/2607 cut-off events. [2024-06-04 16:59:56,322 INFO L125 PetriNetUnfolderBase]: For 10161/10175 co-relation queries the response was YES. [2024-06-04 16:59:56,329 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. [2024-06-04 16:59:56,339 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 63 selfloop transitions, 11 changer transitions 0/81 dead transitions. [2024-06-04 16:59:56,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 81 transitions, 591 flow [2024-06-04 16:59:56,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 16:59:56,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 16:59:56,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 108 transitions. [2024-06-04 16:59:56,349 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-06-04 16:59:56,349 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 405 flow. Second operand 6 states and 108 transitions. [2024-06-04 16:59:56,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 81 transitions, 591 flow [2024-06-04 16:59:56,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 81 transitions, 549 flow, removed 17 selfloop flow, removed 2 redundant places. [2024-06-04 16:59:56,358 INFO L231 Difference]: Finished difference. Result has 68 places, 66 transitions, 393 flow [2024-06-04 16:59:56,358 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} [2024-06-04 16:59:56,358 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 25 predicate places. [2024-06-04 16:59:56,359 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 66 transitions, 393 flow [2024-06-04 16:59:56,359 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) [2024-06-04 16:59:56,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:59:56,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:59:56,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-04 16:59:56,359 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)] === [2024-06-04 16:59:56,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:59:56,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1824663275, now seen corresponding path program 1 times [2024-06-04 16:59:56,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:59:56,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100247284] [2024-06-04 16:59:56,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:59:56,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:59:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:00:06,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:00:06,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:00:06,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100247284] [2024-06-04 17:00:06,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100247284] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:00:06,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:00:06,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-04 17:00:06,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288270632] [2024-06-04 17:00:06,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:00:06,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-04 17:00:06,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:00:06,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-04 17:00:06,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-04 17:00:07,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:00:07,135 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) [2024-06-04 17:00:07,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:00:07,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:00:07,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:00:08,247 INFO L124 PetriNetUnfolderBase]: 1706/2625 cut-off events. [2024-06-04 17:00:08,247 INFO L125 PetriNetUnfolderBase]: For 11692/11706 co-relation queries the response was YES. [2024-06-04 17:00:08,252 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. [2024-06-04 17:00:08,258 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 73 selfloop transitions, 14 changer transitions 0/94 dead transitions. [2024-06-04 17:00:08,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 94 transitions, 659 flow [2024-06-04 17:00:08,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:00:08,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:00:08,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 130 transitions. [2024-06-04 17:00:08,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4421768707482993 [2024-06-04 17:00:08,260 INFO L175 Difference]: Start difference. First operand has 68 places, 66 transitions, 393 flow. Second operand 7 states and 130 transitions. [2024-06-04 17:00:08,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 94 transitions, 659 flow [2024-06-04 17:00:08,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 94 transitions, 625 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-06-04 17:00:08,266 INFO L231 Difference]: Finished difference. Result has 69 places, 69 transitions, 429 flow [2024-06-04 17:00:08,267 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} [2024-06-04 17:00:08,267 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 26 predicate places. [2024-06-04 17:00:08,267 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 69 transitions, 429 flow [2024-06-04 17:00:08,267 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) [2024-06-04 17:00:08,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:00:08,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:00:08,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-04 17:00:08,268 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)] === [2024-06-04 17:00:08,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:00:08,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1824783431, now seen corresponding path program 1 times [2024-06-04 17:00:08,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:00:08,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649085605] [2024-06-04 17:00:08,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:00:08,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:00:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:00:17,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:00:17,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:00:17,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649085605] [2024-06-04 17:00:17,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649085605] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:00:17,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:00:17,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-04 17:00:17,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698219727] [2024-06-04 17:00:17,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:00:17,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-04 17:00:17,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:00:17,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-04 17:00:17,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-04 17:00:17,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:00:17,675 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) [2024-06-04 17:00:17,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:00:17,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:00:17,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:00:18,814 INFO L124 PetriNetUnfolderBase]: 1984/2941 cut-off events. [2024-06-04 17:00:18,815 INFO L125 PetriNetUnfolderBase]: For 16941/16941 co-relation queries the response was YES. [2024-06-04 17:00:18,820 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. [2024-06-04 17:00:18,833 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 87 selfloop transitions, 28 changer transitions 0/118 dead transitions. [2024-06-04 17:00:18,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 118 transitions, 937 flow [2024-06-04 17:00:18,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:00:18,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:00:18,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 137 transitions. [2024-06-04 17:00:18,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46598639455782315 [2024-06-04 17:00:18,835 INFO L175 Difference]: Start difference. First operand has 69 places, 69 transitions, 429 flow. Second operand 7 states and 137 transitions. [2024-06-04 17:00:18,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 118 transitions, 937 flow [2024-06-04 17:00:18,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 118 transitions, 891 flow, removed 11 selfloop flow, removed 5 redundant places. [2024-06-04 17:00:18,844 INFO L231 Difference]: Finished difference. Result has 74 places, 86 transitions, 604 flow [2024-06-04 17:00:18,844 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} [2024-06-04 17:00:18,845 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 31 predicate places. [2024-06-04 17:00:18,845 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 86 transitions, 604 flow [2024-06-04 17:00:18,845 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) [2024-06-04 17:00:18,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:00:18,846 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:00:18,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-04 17:00:18,846 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)] === [2024-06-04 17:00:18,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:00:18,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1445364259, now seen corresponding path program 2 times [2024-06-04 17:00:18,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:00:18,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888654550] [2024-06-04 17:00:18,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:00:18,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:00:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:00:29,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:00:29,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:00:29,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888654550] [2024-06-04 17:00:29,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888654550] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:00:29,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:00:29,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-04 17:00:29,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808289264] [2024-06-04 17:00:29,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:00:29,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-04 17:00:29,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:00:29,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-04 17:00:29,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-04 17:00:29,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:00:29,228 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) [2024-06-04 17:00:29,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:00:29,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:00:29,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:00:30,296 INFO L124 PetriNetUnfolderBase]: 1831/2791 cut-off events. [2024-06-04 17:00:30,296 INFO L125 PetriNetUnfolderBase]: For 19489/19521 co-relation queries the response was YES. [2024-06-04 17:00:30,305 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. [2024-06-04 17:00:30,318 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 78 selfloop transitions, 26 changer transitions 0/116 dead transitions. [2024-06-04 17:00:30,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 116 transitions, 988 flow [2024-06-04 17:00:30,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:00:30,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:00:30,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 133 transitions. [2024-06-04 17:00:30,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-06-04 17:00:30,319 INFO L175 Difference]: Start difference. First operand has 74 places, 86 transitions, 604 flow. Second operand 7 states and 133 transitions. [2024-06-04 17:00:30,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 116 transitions, 988 flow [2024-06-04 17:00:30,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 116 transitions, 952 flow, removed 17 selfloop flow, removed 1 redundant places. [2024-06-04 17:00:30,334 INFO L231 Difference]: Finished difference. Result has 80 places, 92 transitions, 710 flow [2024-06-04 17:00:30,334 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} [2024-06-04 17:00:30,334 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 37 predicate places. [2024-06-04 17:00:30,334 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 92 transitions, 710 flow [2024-06-04 17:00:30,335 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) [2024-06-04 17:00:30,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:00:30,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:00:30,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-04 17:00:30,335 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)] === [2024-06-04 17:00:30,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:00:30,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1398084339, now seen corresponding path program 2 times [2024-06-04 17:00:30,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:00:30,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595430359] [2024-06-04 17:00:30,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:00:30,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:00:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:00:39,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:00:39,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:00:39,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595430359] [2024-06-04 17:00:39,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595430359] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:00:39,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:00:39,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-04 17:00:39,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937767306] [2024-06-04 17:00:39,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:00:39,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-04 17:00:39,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:00:39,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-04 17:00:39,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-04 17:00:39,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:00:39,727 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) [2024-06-04 17:00:39,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:00:39,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:00:39,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:00:41,074 INFO L124 PetriNetUnfolderBase]: 2031/3007 cut-off events. [2024-06-04 17:00:41,075 INFO L125 PetriNetUnfolderBase]: For 26534/26534 co-relation queries the response was YES. [2024-06-04 17:00:41,081 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. [2024-06-04 17:00:41,090 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 96 selfloop transitions, 21 changer transitions 0/120 dead transitions. [2024-06-04 17:00:41,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 120 transitions, 1094 flow [2024-06-04 17:00:41,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:00:41,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:00:41,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2024-06-04 17:00:41,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-06-04 17:00:41,092 INFO L175 Difference]: Start difference. First operand has 80 places, 92 transitions, 710 flow. Second operand 7 states and 126 transitions. [2024-06-04 17:00:41,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 120 transitions, 1094 flow [2024-06-04 17:00:41,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 120 transitions, 1042 flow, removed 18 selfloop flow, removed 3 redundant places. [2024-06-04 17:00:41,144 INFO L231 Difference]: Finished difference. Result has 85 places, 98 transitions, 775 flow [2024-06-04 17:00:41,145 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} [2024-06-04 17:00:41,145 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 42 predicate places. [2024-06-04 17:00:41,146 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 98 transitions, 775 flow [2024-06-04 17:00:41,146 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) [2024-06-04 17:00:41,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:00:41,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:00:41,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-04 17:00:41,146 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)] === [2024-06-04 17:00:41,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:00:41,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2001914951, now seen corresponding path program 3 times [2024-06-04 17:00:41,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:00:41,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370353439] [2024-06-04 17:00:41,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:00:41,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:00:41,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:00:49,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:00:49,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:00:49,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370353439] [2024-06-04 17:00:49,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370353439] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:00:49,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:00:49,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-04 17:00:49,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841411587] [2024-06-04 17:00:49,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:00:49,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-04 17:00:49,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:00:49,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-04 17:00:49,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-04 17:00:50,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:00:50,004 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) [2024-06-04 17:00:50,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:00:50,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:00:50,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:00:51,241 INFO L124 PetriNetUnfolderBase]: 2035/3013 cut-off events. [2024-06-04 17:00:51,241 INFO L125 PetriNetUnfolderBase]: For 29761/29761 co-relation queries the response was YES. [2024-06-04 17:00:51,248 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. [2024-06-04 17:00:51,257 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 99 selfloop transitions, 27 changer transitions 0/129 dead transitions. [2024-06-04 17:00:51,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 129 transitions, 1238 flow [2024-06-04 17:00:51,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:00:51,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:00:51,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 129 transitions. [2024-06-04 17:00:51,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4387755102040816 [2024-06-04 17:00:51,260 INFO L175 Difference]: Start difference. First operand has 85 places, 98 transitions, 775 flow. Second operand 7 states and 129 transitions. [2024-06-04 17:00:51,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 129 transitions, 1238 flow [2024-06-04 17:00:51,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 129 transitions, 1183 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-06-04 17:00:51,301 INFO L231 Difference]: Finished difference. Result has 89 places, 105 transitions, 882 flow [2024-06-04 17:00:51,301 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} [2024-06-04 17:00:51,302 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 46 predicate places. [2024-06-04 17:00:51,312 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 105 transitions, 882 flow [2024-06-04 17:00:51,312 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) [2024-06-04 17:00:51,312 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:00:51,313 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:00:51,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-04 17:00:51,313 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)] === [2024-06-04 17:00:51,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:00:51,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1438935169, now seen corresponding path program 3 times [2024-06-04 17:00:51,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:00:51,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182748343] [2024-06-04 17:00:51,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:00:51,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:00:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:01:01,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:01:01,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:01:01,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182748343] [2024-06-04 17:01:01,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182748343] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:01:01,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:01:01,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-04 17:01:01,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046596317] [2024-06-04 17:01:01,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:01:01,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-04 17:01:01,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:01:01,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-04 17:01:01,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-04 17:01:01,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:01:01,712 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) [2024-06-04 17:01:01,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:01:01,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:01:01,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:01:02,871 INFO L124 PetriNetUnfolderBase]: 1860/2835 cut-off events. [2024-06-04 17:01:02,872 INFO L125 PetriNetUnfolderBase]: For 30160/30180 co-relation queries the response was YES. [2024-06-04 17:01:02,880 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. [2024-06-04 17:01:02,890 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 95 selfloop transitions, 14 changer transitions 0/124 dead transitions. [2024-06-04 17:01:02,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 124 transitions, 1148 flow [2024-06-04 17:01:02,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:01:02,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:01:02,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 124 transitions. [2024-06-04 17:01:02,892 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4217687074829932 [2024-06-04 17:01:02,892 INFO L175 Difference]: Start difference. First operand has 89 places, 105 transitions, 882 flow. Second operand 7 states and 124 transitions. [2024-06-04 17:01:02,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 124 transitions, 1148 flow [2024-06-04 17:01:02,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 124 transitions, 1077 flow, removed 27 selfloop flow, removed 3 redundant places. [2024-06-04 17:01:02,914 INFO L231 Difference]: Finished difference. Result has 93 places, 105 transitions, 847 flow [2024-06-04 17:01:02,914 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} [2024-06-04 17:01:02,916 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 50 predicate places. [2024-06-04 17:01:02,916 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 105 transitions, 847 flow [2024-06-04 17:01:02,916 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) [2024-06-04 17:01:02,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:01:02,916 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:01:02,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-04 17:01:02,917 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)] === [2024-06-04 17:01:02,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:01:02,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1438688905, now seen corresponding path program 1 times [2024-06-04 17:01:02,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:01:02,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909646078] [2024-06-04 17:01:02,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:01:02,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:01:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:01:16,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:01:16,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:01:16,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909646078] [2024-06-04 17:01:16,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909646078] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:01:16,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:01:16,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:01:16,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62655603] [2024-06-04 17:01:16,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:01:16,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:01:16,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:01:16,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:01:16,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:01:16,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:01:16,769 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) [2024-06-04 17:01:16,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:01:16,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:01:16,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:01:18,127 INFO L124 PetriNetUnfolderBase]: 2033/3011 cut-off events. [2024-06-04 17:01:18,127 INFO L125 PetriNetUnfolderBase]: For 36830/36830 co-relation queries the response was YES. [2024-06-04 17:01:18,135 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. [2024-06-04 17:01:18,145 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 102 selfloop transitions, 25 changer transitions 0/130 dead transitions. [2024-06-04 17:01:18,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 130 transitions, 1251 flow [2024-06-04 17:01:18,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:01:18,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:01:18,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 127 transitions. [2024-06-04 17:01:18,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43197278911564624 [2024-06-04 17:01:18,147 INFO L175 Difference]: Start difference. First operand has 93 places, 105 transitions, 847 flow. Second operand 7 states and 127 transitions. [2024-06-04 17:01:18,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 130 transitions, 1251 flow [2024-06-04 17:01:18,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 130 transitions, 1207 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-06-04 17:01:18,168 INFO L231 Difference]: Finished difference. Result has 94 places, 108 transitions, 907 flow [2024-06-04 17:01:18,168 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} [2024-06-04 17:01:18,169 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 51 predicate places. [2024-06-04 17:01:18,169 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 108 transitions, 907 flow [2024-06-04 17:01:18,169 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) [2024-06-04 17:01:18,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:01:18,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:01:18,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-04 17:01:18,170 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)] === [2024-06-04 17:01:18,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:01:18,170 INFO L85 PathProgramCache]: Analyzing trace with hash 811864944, now seen corresponding path program 1 times [2024-06-04 17:01:18,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:01:18,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838505796] [2024-06-04 17:01:18,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:01:18,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:01:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:01:31,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:01:31,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:01:31,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838505796] [2024-06-04 17:01:31,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838505796] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:01:31,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:01:31,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 17:01:31,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146105350] [2024-06-04 17:01:31,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:01:31,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-04 17:01:31,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:01:32,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-04 17:01:32,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-04 17:01:32,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:01:32,088 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) [2024-06-04 17:01:32,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:01:32,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:01:32,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:01:33,291 INFO L124 PetriNetUnfolderBase]: 1904/2881 cut-off events. [2024-06-04 17:01:33,291 INFO L125 PetriNetUnfolderBase]: For 40030/40030 co-relation queries the response was YES. [2024-06-04 17:01:33,300 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. [2024-06-04 17:01:33,310 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 95 selfloop transitions, 8 changer transitions 0/116 dead transitions. [2024-06-04 17:01:33,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 116 transitions, 1133 flow [2024-06-04 17:01:33,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 17:01:33,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 17:01:33,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 88 transitions. [2024-06-04 17:01:33,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41904761904761906 [2024-06-04 17:01:33,312 INFO L175 Difference]: Start difference. First operand has 94 places, 108 transitions, 907 flow. Second operand 5 states and 88 transitions. [2024-06-04 17:01:33,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 116 transitions, 1133 flow [2024-06-04 17:01:33,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 116 transitions, 1045 flow, removed 21 selfloop flow, removed 5 redundant places. [2024-06-04 17:01:33,332 INFO L231 Difference]: Finished difference. Result has 94 places, 108 transitions, 841 flow [2024-06-04 17:01:33,332 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} [2024-06-04 17:01:33,333 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 51 predicate places. [2024-06-04 17:01:33,333 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 108 transitions, 841 flow [2024-06-04 17:01:33,333 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) [2024-06-04 17:01:33,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:01:33,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:01:33,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-04 17:01:33,334 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)] === [2024-06-04 17:01:33,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:01:33,334 INFO L85 PathProgramCache]: Analyzing trace with hash 729898036, now seen corresponding path program 1 times [2024-06-04 17:01:33,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:01:33,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856052115] [2024-06-04 17:01:33,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:01:33,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:01:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:01:44,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:01:44,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:01:44,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856052115] [2024-06-04 17:01:44,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856052115] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:01:44,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:01:44,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:01:44,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181716127] [2024-06-04 17:01:44,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:01:44,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:01:44,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:01:44,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:01:44,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:01:44,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:01:44,273 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) [2024-06-04 17:01:44,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:01:44,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:01:44,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:01:45,609 INFO L124 PetriNetUnfolderBase]: 1904/2893 cut-off events. [2024-06-04 17:01:45,609 INFO L125 PetriNetUnfolderBase]: For 43494/43508 co-relation queries the response was YES. [2024-06-04 17:01:45,618 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. [2024-06-04 17:01:45,628 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 113 selfloop transitions, 23 changer transitions 0/152 dead transitions. [2024-06-04 17:01:45,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 152 transitions, 1367 flow [2024-06-04 17:01:45,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:01:45,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:01:45,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 168 transitions. [2024-06-04 17:01:45,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-06-04 17:01:45,632 INFO L175 Difference]: Start difference. First operand has 94 places, 108 transitions, 841 flow. Second operand 9 states and 168 transitions. [2024-06-04 17:01:45,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 152 transitions, 1367 flow [2024-06-04 17:01:45,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 152 transitions, 1345 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-06-04 17:01:45,653 INFO L231 Difference]: Finished difference. Result has 99 places, 114 transitions, 975 flow [2024-06-04 17:01:45,654 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} [2024-06-04 17:01:45,654 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 56 predicate places. [2024-06-04 17:01:45,654 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 114 transitions, 975 flow [2024-06-04 17:01:45,654 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) [2024-06-04 17:01:45,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:01:45,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:01:45,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-06-04 17:01:45,655 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)] === [2024-06-04 17:01:45,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:01:45,655 INFO L85 PathProgramCache]: Analyzing trace with hash 729988401, now seen corresponding path program 1 times [2024-06-04 17:01:45,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:01:45,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685251990] [2024-06-04 17:01:45,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:01:45,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:01:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:01:55,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:01:55,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:01:55,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685251990] [2024-06-04 17:01:55,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685251990] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:01:55,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:01:55,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:01:55,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244587026] [2024-06-04 17:01:55,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:01:55,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:01:55,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:01:55,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:01:55,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:01:56,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:01:56,151 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) [2024-06-04 17:01:56,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:01:56,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:01:56,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:01:57,436 INFO L124 PetriNetUnfolderBase]: 2117/3131 cut-off events. [2024-06-04 17:01:57,436 INFO L125 PetriNetUnfolderBase]: For 51364/51364 co-relation queries the response was YES. [2024-06-04 17:01:57,446 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. [2024-06-04 17:01:57,456 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 129 selfloop transitions, 27 changer transitions 0/159 dead transitions. [2024-06-04 17:01:57,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 159 transitions, 1599 flow [2024-06-04 17:01:57,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:01:57,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:01:57,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 150 transitions. [2024-06-04 17:01:57,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44642857142857145 [2024-06-04 17:01:57,458 INFO L175 Difference]: Start difference. First operand has 99 places, 114 transitions, 975 flow. Second operand 8 states and 150 transitions. [2024-06-04 17:01:57,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 159 transitions, 1599 flow [2024-06-04 17:01:57,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 159 transitions, 1525 flow, removed 28 selfloop flow, removed 5 redundant places. [2024-06-04 17:01:57,490 INFO L231 Difference]: Finished difference. Result has 104 places, 125 transitions, 1115 flow [2024-06-04 17:01:57,490 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} [2024-06-04 17:01:57,490 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 61 predicate places. [2024-06-04 17:01:57,490 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 125 transitions, 1115 flow [2024-06-04 17:01:57,491 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) [2024-06-04 17:01:57,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:01:57,491 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:01:57,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-06-04 17:01:57,491 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)] === [2024-06-04 17:01:57,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:01:57,491 INFO L85 PathProgramCache]: Analyzing trace with hash 729988246, now seen corresponding path program 2 times [2024-06-04 17:01:57,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:01:57,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106388273] [2024-06-04 17:01:57,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:01:57,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:01:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:02:08,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:02:08,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:02:08,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106388273] [2024-06-04 17:02:08,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106388273] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:02:08,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:02:08,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:02:08,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322478407] [2024-06-04 17:02:08,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:02:08,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:02:08,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:02:08,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:02:08,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:02:08,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:02:08,985 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) [2024-06-04 17:02:08,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:02:08,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:02:08,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:02:10,426 INFO L124 PetriNetUnfolderBase]: 1985/2997 cut-off events. [2024-06-04 17:02:10,427 INFO L125 PetriNetUnfolderBase]: For 57349/57363 co-relation queries the response was YES. [2024-06-04 17:02:10,435 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. [2024-06-04 17:02:10,442 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 118 selfloop transitions, 17 changer transitions 0/154 dead transitions. [2024-06-04 17:02:10,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 154 transitions, 1459 flow [2024-06-04 17:02:10,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:02:10,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:02:10,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 146 transitions. [2024-06-04 17:02:10,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2024-06-04 17:02:10,445 INFO L175 Difference]: Start difference. First operand has 104 places, 125 transitions, 1115 flow. Second operand 8 states and 146 transitions. [2024-06-04 17:02:10,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 154 transitions, 1459 flow [2024-06-04 17:02:10,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 154 transitions, 1317 flow, removed 48 selfloop flow, removed 4 redundant places. [2024-06-04 17:02:10,479 INFO L231 Difference]: Finished difference. Result has 108 places, 125 transitions, 1015 flow [2024-06-04 17:02:10,479 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} [2024-06-04 17:02:10,479 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 65 predicate places. [2024-06-04 17:02:10,479 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 125 transitions, 1015 flow [2024-06-04 17:02:10,480 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) [2024-06-04 17:02:10,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:02:10,480 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:02:10,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-06-04 17:02:10,480 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)] === [2024-06-04 17:02:10,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:02:10,481 INFO L85 PathProgramCache]: Analyzing trace with hash 733713051, now seen corresponding path program 2 times [2024-06-04 17:02:10,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:02:10,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608542278] [2024-06-04 17:02:10,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:02:10,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:02:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:02:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:02:19,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:02:19,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608542278] [2024-06-04 17:02:19,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608542278] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:02:19,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:02:19,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:02:19,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726989510] [2024-06-04 17:02:19,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:02:19,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:02:19,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:02:19,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:02:19,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:02:20,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:02:20,074 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) [2024-06-04 17:02:20,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:02:20,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:02:20,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:02:21,652 INFO L124 PetriNetUnfolderBase]: 2244/3313 cut-off events. [2024-06-04 17:02:21,652 INFO L125 PetriNetUnfolderBase]: For 66463/66465 co-relation queries the response was YES. [2024-06-04 17:02:21,666 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. [2024-06-04 17:02:21,681 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 113 selfloop transitions, 62 changer transitions 0/178 dead transitions. [2024-06-04 17:02:21,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 178 transitions, 1931 flow [2024-06-04 17:02:21,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:02:21,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:02:21,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 159 transitions. [2024-06-04 17:02:21,683 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4732142857142857 [2024-06-04 17:02:21,683 INFO L175 Difference]: Start difference. First operand has 108 places, 125 transitions, 1015 flow. Second operand 8 states and 159 transitions. [2024-06-04 17:02:21,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 178 transitions, 1931 flow [2024-06-04 17:02:21,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 178 transitions, 1889 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-06-04 17:02:21,739 INFO L231 Difference]: Finished difference. Result has 111 places, 140 transitions, 1356 flow [2024-06-04 17:02:21,739 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} [2024-06-04 17:02:21,740 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 68 predicate places. [2024-06-04 17:02:21,740 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 140 transitions, 1356 flow [2024-06-04 17:02:21,740 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) [2024-06-04 17:02:21,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:02:21,740 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:02:21,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-06-04 17:02:21,741 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)] === [2024-06-04 17:02:21,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:02:21,741 INFO L85 PathProgramCache]: Analyzing trace with hash 733707471, now seen corresponding path program 3 times [2024-06-04 17:02:21,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:02:21,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054261714] [2024-06-04 17:02:21,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:02:21,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:02:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:02:31,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:02:31,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:02:31,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054261714] [2024-06-04 17:02:31,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054261714] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:02:31,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:02:31,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:02:31,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321249632] [2024-06-04 17:02:31,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:02:31,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:02:31,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:02:31,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:02:31,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:02:32,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:02:32,048 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) [2024-06-04 17:02:32,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:02:32,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:02:32,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:02:33,507 INFO L124 PetriNetUnfolderBase]: 2232/3297 cut-off events. [2024-06-04 17:02:33,508 INFO L125 PetriNetUnfolderBase]: For 75121/75123 co-relation queries the response was YES. [2024-06-04 17:02:33,520 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. [2024-06-04 17:02:33,535 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 117 selfloop transitions, 57 changer transitions 0/177 dead transitions. [2024-06-04 17:02:33,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 177 transitions, 2052 flow [2024-06-04 17:02:33,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:02:33,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:02:33,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 158 transitions. [2024-06-04 17:02:33,536 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47023809523809523 [2024-06-04 17:02:33,536 INFO L175 Difference]: Start difference. First operand has 111 places, 140 transitions, 1356 flow. Second operand 8 states and 158 transitions. [2024-06-04 17:02:33,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 177 transitions, 2052 flow [2024-06-04 17:02:33,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 177 transitions, 1923 flow, removed 58 selfloop flow, removed 2 redundant places. [2024-06-04 17:02:33,610 INFO L231 Difference]: Finished difference. Result has 117 places, 140 transitions, 1355 flow [2024-06-04 17:02:33,610 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} [2024-06-04 17:02:33,611 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 74 predicate places. [2024-06-04 17:02:33,611 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 140 transitions, 1355 flow [2024-06-04 17:02:33,611 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) [2024-06-04 17:02:33,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:02:33,611 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:02:33,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-06-04 17:02:33,611 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)] === [2024-06-04 17:02:33,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:02:33,612 INFO L85 PathProgramCache]: Analyzing trace with hash 733707316, now seen corresponding path program 3 times [2024-06-04 17:02:33,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:02:33,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700009379] [2024-06-04 17:02:33,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:02:33,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:02:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:02:44,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:02:44,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:02:44,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700009379] [2024-06-04 17:02:44,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700009379] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:02:44,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:02:44,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:02:44,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181047422] [2024-06-04 17:02:44,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:02:44,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:02:44,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:02:44,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:02:44,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:02:44,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:02:44,913 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) [2024-06-04 17:02:44,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:02:44,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:02:44,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:02:46,278 INFO L124 PetriNetUnfolderBase]: 2113/3182 cut-off events. [2024-06-04 17:02:46,278 INFO L125 PetriNetUnfolderBase]: For 75481/75501 co-relation queries the response was YES. [2024-06-04 17:02:46,293 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. [2024-06-04 17:02:46,307 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 117 selfloop transitions, 29 changer transitions 0/169 dead transitions. [2024-06-04 17:02:46,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 169 transitions, 1773 flow [2024-06-04 17:02:46,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:02:46,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:02:46,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 147 transitions. [2024-06-04 17:02:46,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4375 [2024-06-04 17:02:46,319 INFO L175 Difference]: Start difference. First operand has 117 places, 140 transitions, 1355 flow. Second operand 8 states and 147 transitions. [2024-06-04 17:02:46,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 169 transitions, 1773 flow [2024-06-04 17:02:46,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 169 transitions, 1610 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-06-04 17:02:46,370 INFO L231 Difference]: Finished difference. Result has 117 places, 143 transitions, 1324 flow [2024-06-04 17:02:46,370 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} [2024-06-04 17:02:46,370 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 74 predicate places. [2024-06-04 17:02:46,370 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 143 transitions, 1324 flow [2024-06-04 17:02:46,371 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) [2024-06-04 17:02:46,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:02:46,371 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:02:46,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-06-04 17:02:46,371 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)] === [2024-06-04 17:02:46,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:02:46,372 INFO L85 PathProgramCache]: Analyzing trace with hash 55676182, now seen corresponding path program 4 times [2024-06-04 17:02:46,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:02:46,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754069153] [2024-06-04 17:02:46,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:02:46,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:02:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:02:57,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:02:57,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:02:57,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754069153] [2024-06-04 17:02:57,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754069153] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:02:57,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:02:57,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:02:57,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451799381] [2024-06-04 17:02:57,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:02:57,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:02:57,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:02:57,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:02:57,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:02:57,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:02:57,398 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) [2024-06-04 17:02:57,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:02:57,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:02:57,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:02:58,763 INFO L124 PetriNetUnfolderBase]: 2108/3174 cut-off events. [2024-06-04 17:02:58,763 INFO L125 PetriNetUnfolderBase]: For 80753/80769 co-relation queries the response was YES. [2024-06-04 17:02:58,773 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. [2024-06-04 17:02:58,784 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 129 selfloop transitions, 17 changer transitions 0/169 dead transitions. [2024-06-04 17:02:58,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 169 transitions, 1740 flow [2024-06-04 17:02:58,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:02:58,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:02:58,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 140 transitions. [2024-06-04 17:02:58,788 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2024-06-04 17:02:58,788 INFO L175 Difference]: Start difference. First operand has 117 places, 143 transitions, 1324 flow. Second operand 8 states and 140 transitions. [2024-06-04 17:02:58,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 169 transitions, 1740 flow [2024-06-04 17:02:58,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 169 transitions, 1632 flow, removed 27 selfloop flow, removed 6 redundant places. [2024-06-04 17:02:58,848 INFO L231 Difference]: Finished difference. Result has 119 places, 146 transitions, 1330 flow [2024-06-04 17:02:58,848 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} [2024-06-04 17:02:58,849 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 76 predicate places. [2024-06-04 17:02:58,849 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 146 transitions, 1330 flow [2024-06-04 17:02:58,850 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) [2024-06-04 17:02:58,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:02:58,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:02:58,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-06-04 17:02:58,858 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)] === [2024-06-04 17:02:58,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:02:58,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1937441652, now seen corresponding path program 1 times [2024-06-04 17:02:58,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:02:58,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822760218] [2024-06-04 17:02:58,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:02:58,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:02:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:03:08,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:03:08,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:03:08,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822760218] [2024-06-04 17:03:08,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822760218] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:03:08,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:03:08,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:03:08,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351883438] [2024-06-04 17:03:08,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:03:08,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:03:08,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:03:08,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:03:08,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:03:09,109 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:03:09,110 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) [2024-06-04 17:03:09,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:03:09,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:03:09,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:03:10,517 INFO L124 PetriNetUnfolderBase]: 2240/3307 cut-off events. [2024-06-04 17:03:10,517 INFO L125 PetriNetUnfolderBase]: For 89332/89332 co-relation queries the response was YES. [2024-06-04 17:03:10,528 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. [2024-06-04 17:03:10,540 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 138 selfloop transitions, 30 changer transitions 0/171 dead transitions. [2024-06-04 17:03:10,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 171 transitions, 1830 flow [2024-06-04 17:03:10,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:03:10,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:03:10,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 127 transitions. [2024-06-04 17:03:10,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43197278911564624 [2024-06-04 17:03:10,541 INFO L175 Difference]: Start difference. First operand has 119 places, 146 transitions, 1330 flow. Second operand 7 states and 127 transitions. [2024-06-04 17:03:10,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 171 transitions, 1830 flow [2024-06-04 17:03:10,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 171 transitions, 1740 flow, removed 30 selfloop flow, removed 6 redundant places. [2024-06-04 17:03:10,598 INFO L231 Difference]: Finished difference. Result has 120 places, 150 transitions, 1386 flow [2024-06-04 17:03:10,599 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} [2024-06-04 17:03:10,599 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 77 predicate places. [2024-06-04 17:03:10,599 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 150 transitions, 1386 flow [2024-06-04 17:03:10,599 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) [2024-06-04 17:03:10,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:03:10,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:03:10,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-06-04 17:03:10,600 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)] === [2024-06-04 17:03:10,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:03:10,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1649958325, now seen corresponding path program 4 times [2024-06-04 17:03:10,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:03:10,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431863817] [2024-06-04 17:03:10,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:03:10,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:03:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:03:19,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:03:19,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:03:19,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431863817] [2024-06-04 17:03:19,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431863817] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:03:19,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:03:19,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:03:19,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487591133] [2024-06-04 17:03:19,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:03:19,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:03:19,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:03:19,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:03:19,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:03:20,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:03:20,113 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) [2024-06-04 17:03:20,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:03:20,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:03:20,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:03:21,504 INFO L124 PetriNetUnfolderBase]: 2276/3359 cut-off events. [2024-06-04 17:03:21,505 INFO L125 PetriNetUnfolderBase]: For 97029/97029 co-relation queries the response was YES. [2024-06-04 17:03:21,517 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. [2024-06-04 17:03:21,529 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 152 selfloop transitions, 25 changer transitions 0/180 dead transitions. [2024-06-04 17:03:21,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 180 transitions, 1928 flow [2024-06-04 17:03:21,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:03:21,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:03:21,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 142 transitions. [2024-06-04 17:03:21,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4226190476190476 [2024-06-04 17:03:21,530 INFO L175 Difference]: Start difference. First operand has 120 places, 150 transitions, 1386 flow. Second operand 8 states and 142 transitions. [2024-06-04 17:03:21,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 180 transitions, 1928 flow [2024-06-04 17:03:21,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 180 transitions, 1834 flow, removed 22 selfloop flow, removed 5 redundant places. [2024-06-04 17:03:21,591 INFO L231 Difference]: Finished difference. Result has 123 places, 154 transitions, 1431 flow [2024-06-04 17:03:21,592 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} [2024-06-04 17:03:21,592 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 80 predicate places. [2024-06-04 17:03:21,592 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 154 transitions, 1431 flow [2024-06-04 17:03:21,592 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) [2024-06-04 17:03:21,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:03:21,593 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:03:21,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-06-04 17:03:21,593 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)] === [2024-06-04 17:03:21,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:03:21,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1657315555, now seen corresponding path program 5 times [2024-06-04 17:03:21,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:03:21,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449168594] [2024-06-04 17:03:21,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:03:21,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:03:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:03:31,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:03:31,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:03:31,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449168594] [2024-06-04 17:03:31,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449168594] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:03:31,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:03:31,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:03:31,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788013596] [2024-06-04 17:03:31,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:03:31,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:03:31,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:03:31,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:03:31,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:03:31,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:03:31,385 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) [2024-06-04 17:03:31,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:03:31,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:03:31,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:03:32,836 INFO L124 PetriNetUnfolderBase]: 2312/3411 cut-off events. [2024-06-04 17:03:32,836 INFO L125 PetriNetUnfolderBase]: For 105414/105414 co-relation queries the response was YES. [2024-06-04 17:03:32,849 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. [2024-06-04 17:03:32,860 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 150 selfloop transitions, 37 changer transitions 0/190 dead transitions. [2024-06-04 17:03:32,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 190 transitions, 2227 flow [2024-06-04 17:03:32,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:03:32,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:03:32,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 148 transitions. [2024-06-04 17:03:32,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2024-06-04 17:03:32,862 INFO L175 Difference]: Start difference. First operand has 123 places, 154 transitions, 1431 flow. Second operand 8 states and 148 transitions. [2024-06-04 17:03:32,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 190 transitions, 2227 flow [2024-06-04 17:03:32,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 190 transitions, 2124 flow, removed 29 selfloop flow, removed 6 redundant places. [2024-06-04 17:03:32,932 INFO L231 Difference]: Finished difference. Result has 126 places, 159 transitions, 1532 flow [2024-06-04 17:03:32,932 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} [2024-06-04 17:03:32,932 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 83 predicate places. [2024-06-04 17:03:32,932 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 159 transitions, 1532 flow [2024-06-04 17:03:32,933 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) [2024-06-04 17:03:32,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:03:32,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:03:32,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-06-04 17:03:32,933 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)] === [2024-06-04 17:03:32,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:03:32,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1929822875, now seen corresponding path program 6 times [2024-06-04 17:03:32,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:03:32,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501448499] [2024-06-04 17:03:32,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:03:32,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:03:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:03:42,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:03:42,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:03:42,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501448499] [2024-06-04 17:03:42,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501448499] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:03:42,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:03:42,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:03:42,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516519566] [2024-06-04 17:03:42,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:03:42,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:03:42,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:03:42,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:03:42,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:03:42,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:03:42,500 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) [2024-06-04 17:03:42,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:03:42,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:03:42,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:03:43,842 INFO L124 PetriNetUnfolderBase]: 2316/3417 cut-off events. [2024-06-04 17:03:43,842 INFO L125 PetriNetUnfolderBase]: For 113058/113058 co-relation queries the response was YES. [2024-06-04 17:03:43,855 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. [2024-06-04 17:03:43,869 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 147 selfloop transitions, 41 changer transitions 0/191 dead transitions. [2024-06-04 17:03:43,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 191 transitions, 2177 flow [2024-06-04 17:03:43,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:03:43,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:03:43,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 147 transitions. [2024-06-04 17:03:43,870 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4375 [2024-06-04 17:03:43,870 INFO L175 Difference]: Start difference. First operand has 126 places, 159 transitions, 1532 flow. Second operand 8 states and 147 transitions. [2024-06-04 17:03:43,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 191 transitions, 2177 flow [2024-06-04 17:03:43,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 191 transitions, 1979 flow, removed 46 selfloop flow, removed 7 redundant places. [2024-06-04 17:03:43,946 INFO L231 Difference]: Finished difference. Result has 127 places, 163 transitions, 1518 flow [2024-06-04 17:03:43,946 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} [2024-06-04 17:03:43,946 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 84 predicate places. [2024-06-04 17:03:43,946 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 163 transitions, 1518 flow [2024-06-04 17:03:43,947 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) [2024-06-04 17:03:43,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:03:43,947 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:03:43,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-06-04 17:03:43,947 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)] === [2024-06-04 17:03:43,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:03:43,948 INFO L85 PathProgramCache]: Analyzing trace with hash -601988692, now seen corresponding path program 1 times [2024-06-04 17:03:43,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:03:43,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788874338] [2024-06-04 17:03:43,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:03:43,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:03:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:03:59,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:03:59,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:03:59,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788874338] [2024-06-04 17:03:59,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788874338] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:03:59,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:03:59,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-04 17:03:59,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935569426] [2024-06-04 17:03:59,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:03:59,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-04 17:03:59,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:03:59,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-04 17:03:59,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-04 17:03:59,777 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:03:59,777 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) [2024-06-04 17:03:59,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:03:59,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:03:59,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:04:01,064 INFO L124 PetriNetUnfolderBase]: 2154/3228 cut-off events. [2024-06-04 17:04:01,064 INFO L125 PetriNetUnfolderBase]: For 116240/116264 co-relation queries the response was YES. [2024-06-04 17:04:01,077 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. [2024-06-04 17:04:01,089 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 152 selfloop transitions, 11 changer transitions 0/177 dead transitions. [2024-06-04 17:04:01,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 177 transitions, 1898 flow [2024-06-04 17:04:01,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 17:04:01,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 17:04:01,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2024-06-04 17:04:01,091 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4087301587301587 [2024-06-04 17:04:01,091 INFO L175 Difference]: Start difference. First operand has 127 places, 163 transitions, 1518 flow. Second operand 6 states and 103 transitions. [2024-06-04 17:04:01,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 177 transitions, 1898 flow [2024-06-04 17:04:01,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 177 transitions, 1782 flow, removed 30 selfloop flow, removed 5 redundant places. [2024-06-04 17:04:01,149 INFO L231 Difference]: Finished difference. Result has 128 places, 166 transitions, 1464 flow [2024-06-04 17:04:01,150 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} [2024-06-04 17:04:01,151 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 85 predicate places. [2024-06-04 17:04:01,151 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 166 transitions, 1464 flow [2024-06-04 17:04:01,151 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) [2024-06-04 17:04:01,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:04:01,151 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:04:01,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-06-04 17:04:01,152 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)] === [2024-06-04 17:04:01,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:04:01,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1151943786, now seen corresponding path program 1 times [2024-06-04 17:04:01,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:04:01,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152450235] [2024-06-04 17:04:01,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:04:01,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:04:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:04:12,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:04:12,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:04:12,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152450235] [2024-06-04 17:04:12,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152450235] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:04:12,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:04:12,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:04:12,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203876446] [2024-06-04 17:04:12,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:04:12,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:04:12,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:04:12,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:04:12,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:04:12,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:04:12,571 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) [2024-06-04 17:04:12,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:04:12,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:04:12,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:04:14,280 INFO L124 PetriNetUnfolderBase]: 2209/3330 cut-off events. [2024-06-04 17:04:14,280 INFO L125 PetriNetUnfolderBase]: For 123851/123881 co-relation queries the response was YES. [2024-06-04 17:04:14,293 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. [2024-06-04 17:04:14,305 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 159 selfloop transitions, 28 changer transitions 0/214 dead transitions. [2024-06-04 17:04:14,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 214 transitions, 2200 flow [2024-06-04 17:04:14,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-04 17:04:14,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-04 17:04:14,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 185 transitions. [2024-06-04 17:04:14,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2024-06-04 17:04:14,308 INFO L175 Difference]: Start difference. First operand has 128 places, 166 transitions, 1464 flow. Second operand 10 states and 185 transitions. [2024-06-04 17:04:14,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 214 transitions, 2200 flow [2024-06-04 17:04:14,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 214 transitions, 2158 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-06-04 17:04:14,377 INFO L231 Difference]: Finished difference. Result has 134 places, 170 transitions, 1633 flow [2024-06-04 17:04:14,377 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} [2024-06-04 17:04:14,378 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 91 predicate places. [2024-06-04 17:04:14,378 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 170 transitions, 1633 flow [2024-06-04 17:04:14,378 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) [2024-06-04 17:04:14,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:04:14,378 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:04:14,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-06-04 17:04:14,379 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)] === [2024-06-04 17:04:14,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:04:14,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1152004360, now seen corresponding path program 1 times [2024-06-04 17:04:14,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:04:14,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474936586] [2024-06-04 17:04:14,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:04:14,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:04:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:04:25,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:04:25,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:04:25,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474936586] [2024-06-04 17:04:25,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474936586] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:04:25,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:04:25,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:04:25,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418851272] [2024-06-04 17:04:25,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:04:25,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:04:25,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:04:25,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:04:25,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:04:26,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:04:26,190 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) [2024-06-04 17:04:26,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:04:26,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:04:26,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:04:27,930 INFO L124 PetriNetUnfolderBase]: 2465/3635 cut-off events. [2024-06-04 17:04:27,931 INFO L125 PetriNetUnfolderBase]: For 141637/141637 co-relation queries the response was YES. [2024-06-04 17:04:27,946 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. [2024-06-04 17:04:27,962 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 190 selfloop transitions, 41 changer transitions 0/234 dead transitions. [2024-06-04 17:04:27,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 234 transitions, 2835 flow [2024-06-04 17:04:27,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-04 17:04:27,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-04 17:04:27,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 193 transitions. [2024-06-04 17:04:27,964 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4595238095238095 [2024-06-04 17:04:27,964 INFO L175 Difference]: Start difference. First operand has 134 places, 170 transitions, 1633 flow. Second operand 10 states and 193 transitions. [2024-06-04 17:04:27,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 234 transitions, 2835 flow [2024-06-04 17:04:28,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 234 transitions, 2717 flow, removed 45 selfloop flow, removed 6 redundant places. [2024-06-04 17:04:28,075 INFO L231 Difference]: Finished difference. Result has 140 places, 182 transitions, 1830 flow [2024-06-04 17:04:28,076 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} [2024-06-04 17:04:28,076 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 97 predicate places. [2024-06-04 17:04:28,076 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 182 transitions, 1830 flow [2024-06-04 17:04:28,076 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) [2024-06-04 17:04:28,077 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:04:28,077 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:04:28,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-06-04 17:04:28,077 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)] === [2024-06-04 17:04:28,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:04:28,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1152004236, now seen corresponding path program 2 times [2024-06-04 17:04:28,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:04:28,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344835016] [2024-06-04 17:04:28,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:04:28,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:04:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:04:39,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:04:39,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:04:39,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344835016] [2024-06-04 17:04:39,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344835016] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:04:39,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:04:39,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:04:39,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673742865] [2024-06-04 17:04:39,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:04:39,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:04:39,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:04:39,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:04:39,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:04:39,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:04:39,650 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) [2024-06-04 17:04:39,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:04:39,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:04:39,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:04:41,405 INFO L124 PetriNetUnfolderBase]: 2368/3547 cut-off events. [2024-06-04 17:04:41,405 INFO L125 PetriNetUnfolderBase]: For 151602/151632 co-relation queries the response was YES. [2024-06-04 17:04:41,422 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. [2024-06-04 17:04:41,438 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 170 selfloop transitions, 25 changer transitions 0/225 dead transitions. [2024-06-04 17:04:41,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 225 transitions, 2378 flow [2024-06-04 17:04:41,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-04 17:04:41,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-04 17:04:41,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 182 transitions. [2024-06-04 17:04:41,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2024-06-04 17:04:41,441 INFO L175 Difference]: Start difference. First operand has 140 places, 182 transitions, 1830 flow. Second operand 10 states and 182 transitions. [2024-06-04 17:04:41,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 225 transitions, 2378 flow [2024-06-04 17:04:41,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 225 transitions, 2231 flow, removed 58 selfloop flow, removed 5 redundant places. [2024-06-04 17:04:41,539 INFO L231 Difference]: Finished difference. Result has 145 places, 184 transitions, 1798 flow [2024-06-04 17:04:41,539 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} [2024-06-04 17:04:41,540 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 102 predicate places. [2024-06-04 17:04:41,540 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 184 transitions, 1798 flow [2024-06-04 17:04:41,540 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) [2024-06-04 17:04:41,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:04:41,540 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:04:41,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-06-04 17:04:41,540 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)] === [2024-06-04 17:04:41,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:04:41,541 INFO L85 PathProgramCache]: Analyzing trace with hash 821112292, now seen corresponding path program 2 times [2024-06-04 17:04:41,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:04:41,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832911671] [2024-06-04 17:04:41,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:04:41,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:04:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:04:51,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:04:51,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:04:51,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832911671] [2024-06-04 17:04:51,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832911671] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:04:51,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:04:51,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:04:51,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613949212] [2024-06-04 17:04:51,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:04:51,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:04:51,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:04:51,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:04:51,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:04:51,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:04:51,550 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) [2024-06-04 17:04:51,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:04:51,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:04:51,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:04:53,327 INFO L124 PetriNetUnfolderBase]: 2518/3714 cut-off events. [2024-06-04 17:04:53,327 INFO L125 PetriNetUnfolderBase]: For 163172/163172 co-relation queries the response was YES. [2024-06-04 17:04:53,343 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. [2024-06-04 17:04:53,358 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 196 selfloop transitions, 34 changer transitions 0/233 dead transitions. [2024-06-04 17:04:53,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 233 transitions, 2853 flow [2024-06-04 17:04:53,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:04:53,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:04:53,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 170 transitions. [2024-06-04 17:04:53,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4497354497354497 [2024-06-04 17:04:53,360 INFO L175 Difference]: Start difference. First operand has 145 places, 184 transitions, 1798 flow. Second operand 9 states and 170 transitions. [2024-06-04 17:04:53,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 233 transitions, 2853 flow [2024-06-04 17:04:53,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 233 transitions, 2760 flow, removed 23 selfloop flow, removed 8 redundant places. [2024-06-04 17:04:53,476 INFO L231 Difference]: Finished difference. Result has 147 places, 191 transitions, 1932 flow [2024-06-04 17:04:53,477 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} [2024-06-04 17:04:53,478 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 104 predicate places. [2024-06-04 17:04:53,478 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 191 transitions, 1932 flow [2024-06-04 17:04:53,478 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) [2024-06-04 17:04:53,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:04:53,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:04:53,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-06-04 17:04:53,479 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)] === [2024-06-04 17:04:53,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:04:53,479 INFO L85 PathProgramCache]: Analyzing trace with hash 821112168, now seen corresponding path program 3 times [2024-06-04 17:04:53,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:04:53,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320944349] [2024-06-04 17:04:53,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:04:53,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:04:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:05:05,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:05:05,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:05:05,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320944349] [2024-06-04 17:05:05,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320944349] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:05:05,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:05:05,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:05:05,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296017755] [2024-06-04 17:05:05,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:05:05,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:05:05,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:05:05,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:05:05,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:05:05,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:05:05,716 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) [2024-06-04 17:05:05,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:05:05,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:05:05,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:05:07,360 INFO L124 PetriNetUnfolderBase]: 2393/3584 cut-off events. [2024-06-04 17:05:07,360 INFO L125 PetriNetUnfolderBase]: For 167880/167910 co-relation queries the response was YES. [2024-06-04 17:05:07,378 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. [2024-06-04 17:05:07,395 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 174 selfloop transitions, 19 changer transitions 0/225 dead transitions. [2024-06-04 17:05:07,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 225 transitions, 2404 flow [2024-06-04 17:05:07,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:05:07,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:05:07,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 162 transitions. [2024-06-04 17:05:07,398 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-06-04 17:05:07,398 INFO L175 Difference]: Start difference. First operand has 147 places, 191 transitions, 1932 flow. Second operand 9 states and 162 transitions. [2024-06-04 17:05:07,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 225 transitions, 2404 flow [2024-06-04 17:05:07,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 225 transitions, 2255 flow, removed 59 selfloop flow, removed 5 redundant places. [2024-06-04 17:05:07,541 INFO L231 Difference]: Finished difference. Result has 151 places, 191 transitions, 1828 flow [2024-06-04 17:05:07,541 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} [2024-06-04 17:05:07,542 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 108 predicate places. [2024-06-04 17:05:07,542 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 191 transitions, 1828 flow [2024-06-04 17:05:07,542 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) [2024-06-04 17:05:07,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:05:07,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:05:07,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-06-04 17:05:07,543 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)] === [2024-06-04 17:05:07,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:05:07,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1154805520, now seen corresponding path program 3 times [2024-06-04 17:05:07,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:05:07,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670220299] [2024-06-04 17:05:07,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:05:07,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:05:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:05:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:05:19,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:05:19,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670220299] [2024-06-04 17:05:19,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670220299] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:05:19,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:05:19,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:05:19,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869558320] [2024-06-04 17:05:19,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:05:19,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:05:19,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:05:19,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:05:19,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:05:19,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:05:19,438 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) [2024-06-04 17:05:19,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:05:19,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:05:19,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:05:21,201 INFO L124 PetriNetUnfolderBase]: 2514/3708 cut-off events. [2024-06-04 17:05:21,201 INFO L125 PetriNetUnfolderBase]: For 175833/175833 co-relation queries the response was YES. [2024-06-04 17:05:21,217 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. [2024-06-04 17:05:21,235 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 200 selfloop transitions, 31 changer transitions 0/234 dead transitions. [2024-06-04 17:05:21,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 234 transitions, 2682 flow [2024-06-04 17:05:21,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:05:21,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:05:21,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 167 transitions. [2024-06-04 17:05:21,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4417989417989418 [2024-06-04 17:05:21,252 INFO L175 Difference]: Start difference. First operand has 151 places, 191 transitions, 1828 flow. Second operand 9 states and 167 transitions. [2024-06-04 17:05:21,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 234 transitions, 2682 flow [2024-06-04 17:05:21,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 234 transitions, 2632 flow, removed 3 selfloop flow, removed 8 redundant places. [2024-06-04 17:05:21,372 INFO L231 Difference]: Finished difference. Result has 152 places, 195 transitions, 1949 flow [2024-06-04 17:05:21,372 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} [2024-06-04 17:05:21,373 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 109 predicate places. [2024-06-04 17:05:21,373 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 195 transitions, 1949 flow [2024-06-04 17:05:21,373 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) [2024-06-04 17:05:21,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:05:21,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:05:21,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-06-04 17:05:21,373 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)] === [2024-06-04 17:05:21,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:05:21,374 INFO L85 PathProgramCache]: Analyzing trace with hash 936588036, now seen corresponding path program 1 times [2024-06-04 17:05:21,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:05:21,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064829963] [2024-06-04 17:05:21,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:05:21,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:05:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:05:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:05:32,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:05:32,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064829963] [2024-06-04 17:05:32,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064829963] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:05:32,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:05:32,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:05:32,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295280153] [2024-06-04 17:05:32,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:05:32,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:05:32,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:05:32,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:05:32,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:05:32,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:05:32,317 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) [2024-06-04 17:05:32,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:05:32,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:05:32,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:05:33,961 INFO L124 PetriNetUnfolderBase]: 2542/3754 cut-off events. [2024-06-04 17:05:33,961 INFO L125 PetriNetUnfolderBase]: For 188373/188375 co-relation queries the response was YES. [2024-06-04 17:05:33,978 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. [2024-06-04 17:05:33,995 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 188 selfloop transitions, 40 changer transitions 0/231 dead transitions. [2024-06-04 17:05:33,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 231 transitions, 2773 flow [2024-06-04 17:05:33,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:05:33,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:05:33,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2024-06-04 17:05:34,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-06-04 17:05:34,000 INFO L175 Difference]: Start difference. First operand has 152 places, 195 transitions, 1949 flow. Second operand 8 states and 152 transitions. [2024-06-04 17:05:34,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 231 transitions, 2773 flow [2024-06-04 17:05:34,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 231 transitions, 2650 flow, removed 33 selfloop flow, removed 7 redundant places. [2024-06-04 17:05:34,175 INFO L231 Difference]: Finished difference. Result has 153 places, 198 transitions, 1998 flow [2024-06-04 17:05:34,175 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} [2024-06-04 17:05:34,175 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 110 predicate places. [2024-06-04 17:05:34,175 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 198 transitions, 1998 flow [2024-06-04 17:05:34,176 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) [2024-06-04 17:05:34,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:05:34,176 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:05:34,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-06-04 17:05:34,176 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)] === [2024-06-04 17:05:34,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:05:34,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1270269670, now seen corresponding path program 4 times [2024-06-04 17:05:34,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:05:34,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370476174] [2024-06-04 17:05:34,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:05:34,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:05:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:05:44,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:05:44,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:05:44,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370476174] [2024-06-04 17:05:44,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370476174] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:05:44,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:05:44,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:05:44,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691797871] [2024-06-04 17:05:44,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:05:44,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:05:44,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:05:44,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:05:44,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:05:44,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:05:44,894 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) [2024-06-04 17:05:44,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:05:44,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:05:44,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:05:46,510 INFO L124 PetriNetUnfolderBase]: 2578/3806 cut-off events. [2024-06-04 17:05:46,511 INFO L125 PetriNetUnfolderBase]: For 198120/198122 co-relation queries the response was YES. [2024-06-04 17:05:46,528 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. [2024-06-04 17:05:46,544 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 159 selfloop transitions, 84 changer transitions 0/246 dead transitions. [2024-06-04 17:05:46,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 246 transitions, 3068 flow [2024-06-04 17:05:46,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:05:46,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:05:46,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 175 transitions. [2024-06-04 17:05:46,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46296296296296297 [2024-06-04 17:05:46,546 INFO L175 Difference]: Start difference. First operand has 153 places, 198 transitions, 1998 flow. Second operand 9 states and 175 transitions. [2024-06-04 17:05:46,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 246 transitions, 3068 flow [2024-06-04 17:05:46,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 246 transitions, 2916 flow, removed 38 selfloop flow, removed 6 redundant places. [2024-06-04 17:05:46,705 INFO L231 Difference]: Finished difference. Result has 157 places, 205 transitions, 2208 flow [2024-06-04 17:05:46,705 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} [2024-06-04 17:05:46,705 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 114 predicate places. [2024-06-04 17:05:46,706 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 205 transitions, 2208 flow [2024-06-04 17:05:46,706 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) [2024-06-04 17:05:46,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:05:46,706 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:05:46,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-06-04 17:05:46,706 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)] === [2024-06-04 17:05:46,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:05:46,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1270092040, now seen corresponding path program 5 times [2024-06-04 17:05:46,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:05:46,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415435699] [2024-06-04 17:05:46,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:05:46,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:05:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:05:57,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:05:57,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:05:57,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415435699] [2024-06-04 17:05:57,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415435699] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:05:57,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:05:57,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:05:57,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441522077] [2024-06-04 17:05:57,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:05:57,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:05:57,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:05:57,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:05:57,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:05:57,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:05:57,318 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) [2024-06-04 17:05:57,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:05:57,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:05:57,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:05:59,119 INFO L124 PetriNetUnfolderBase]: 2670/3937 cut-off events. [2024-06-04 17:05:59,120 INFO L125 PetriNetUnfolderBase]: For 218186/218188 co-relation queries the response was YES. [2024-06-04 17:05:59,139 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. [2024-06-04 17:05:59,158 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 170 selfloop transitions, 85 changer transitions 0/258 dead transitions. [2024-06-04 17:05:59,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 258 transitions, 3636 flow [2024-06-04 17:05:59,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:05:59,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:05:59,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 179 transitions. [2024-06-04 17:05:59,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47354497354497355 [2024-06-04 17:05:59,160 INFO L175 Difference]: Start difference. First operand has 157 places, 205 transitions, 2208 flow. Second operand 9 states and 179 transitions. [2024-06-04 17:05:59,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 258 transitions, 3636 flow [2024-06-04 17:05:59,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 258 transitions, 3478 flow, removed 47 selfloop flow, removed 5 redundant places. [2024-06-04 17:05:59,328 INFO L231 Difference]: Finished difference. Result has 162 places, 213 transitions, 2436 flow [2024-06-04 17:05:59,328 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} [2024-06-04 17:05:59,329 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 119 predicate places. [2024-06-04 17:05:59,329 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 213 transitions, 2436 flow [2024-06-04 17:05:59,329 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) [2024-06-04 17:05:59,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:05:59,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:05:59,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-06-04 17:05:59,330 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)] === [2024-06-04 17:05:59,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:05:59,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1270091916, now seen corresponding path program 4 times [2024-06-04 17:05:59,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:05:59,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698588054] [2024-06-04 17:05:59,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:05:59,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:05:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:06:10,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:06:10,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:06:10,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698588054] [2024-06-04 17:06:10,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698588054] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:06:10,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:06:10,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:06:10,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391505521] [2024-06-04 17:06:10,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:06:10,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:06:10,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:06:10,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:06:10,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:06:10,893 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:06:10,893 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) [2024-06-04 17:06:10,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:06:10,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:06:10,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:06:12,656 INFO L124 PetriNetUnfolderBase]: 2559/3834 cut-off events. [2024-06-04 17:06:12,656 INFO L125 PetriNetUnfolderBase]: For 231210/231252 co-relation queries the response was YES. [2024-06-04 17:06:12,677 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. [2024-06-04 17:06:12,696 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 177 selfloop transitions, 31 changer transitions 0/246 dead transitions. [2024-06-04 17:06:12,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 246 transitions, 3024 flow [2024-06-04 17:06:12,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:06:12,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:06:12,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 163 transitions. [2024-06-04 17:06:12,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4312169312169312 [2024-06-04 17:06:12,700 INFO L175 Difference]: Start difference. First operand has 162 places, 213 transitions, 2436 flow. Second operand 9 states and 163 transitions. [2024-06-04 17:06:12,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 246 transitions, 3024 flow [2024-06-04 17:06:12,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 246 transitions, 2805 flow, removed 66 selfloop flow, removed 5 redundant places. [2024-06-04 17:06:12,905 INFO L231 Difference]: Finished difference. Result has 166 places, 215 transitions, 2384 flow [2024-06-04 17:06:12,906 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} [2024-06-04 17:06:12,906 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 123 predicate places. [2024-06-04 17:06:12,906 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 215 transitions, 2384 flow [2024-06-04 17:06:12,906 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) [2024-06-04 17:06:12,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:06:12,907 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:06:12,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-06-04 17:06:12,907 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)] === [2024-06-04 17:06:12,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:06:12,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1270096690, now seen corresponding path program 6 times [2024-06-04 17:06:12,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:06:12,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567018161] [2024-06-04 17:06:12,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:06:12,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:06:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:06:24,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:06:24,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:06:24,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567018161] [2024-06-04 17:06:24,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567018161] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:06:24,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:06:24,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:06:24,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860638521] [2024-06-04 17:06:24,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:06:24,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:06:24,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:06:24,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:06:24,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:06:24,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:06:24,516 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) [2024-06-04 17:06:24,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:06:24,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:06:24,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:06:26,295 INFO L124 PetriNetUnfolderBase]: 2691/3970 cut-off events. [2024-06-04 17:06:26,295 INFO L125 PetriNetUnfolderBase]: For 240792/240794 co-relation queries the response was YES. [2024-06-04 17:06:26,315 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. [2024-06-04 17:06:26,333 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 179 selfloop transitions, 79 changer transitions 0/261 dead transitions. [2024-06-04 17:06:26,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 261 transitions, 3557 flow [2024-06-04 17:06:26,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:06:26,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:06:26,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 176 transitions. [2024-06-04 17:06:26,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4656084656084656 [2024-06-04 17:06:26,335 INFO L175 Difference]: Start difference. First operand has 166 places, 215 transitions, 2384 flow. Second operand 9 states and 176 transitions. [2024-06-04 17:06:26,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 261 transitions, 3557 flow [2024-06-04 17:06:26,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 261 transitions, 3408 flow, removed 45 selfloop flow, removed 7 redundant places. [2024-06-04 17:06:26,514 INFO L231 Difference]: Finished difference. Result has 168 places, 219 transitions, 2511 flow [2024-06-04 17:06:26,514 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} [2024-06-04 17:06:26,515 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 125 predicate places. [2024-06-04 17:06:26,515 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 219 transitions, 2511 flow [2024-06-04 17:06:26,516 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) [2024-06-04 17:06:26,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:06:26,516 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:06:26,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-06-04 17:06:26,516 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)] === [2024-06-04 17:06:26,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:06:26,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2037501715, now seen corresponding path program 1 times [2024-06-04 17:06:26,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:06:26,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730806723] [2024-06-04 17:06:26,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:06:26,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:06:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:06:38,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:06:38,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:06:38,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730806723] [2024-06-04 17:06:38,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730806723] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:06:38,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:06:38,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-04 17:06:38,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730274391] [2024-06-04 17:06:38,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:06:38,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-04 17:06:38,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:06:38,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-04 17:06:38,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-04 17:06:39,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:06:39,100 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) [2024-06-04 17:06:39,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:06:39,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:06:39,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:06:40,508 INFO L124 PetriNetUnfolderBase]: 2541/3798 cut-off events. [2024-06-04 17:06:40,508 INFO L125 PetriNetUnfolderBase]: For 245589/245613 co-relation queries the response was YES. [2024-06-04 17:06:40,529 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. [2024-06-04 17:06:40,549 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 203 selfloop transitions, 22 changer transitions 0/240 dead transitions. [2024-06-04 17:06:40,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 240 transitions, 3170 flow [2024-06-04 17:06:40,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 17:06:40,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 17:06:40,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 110 transitions. [2024-06-04 17:06:40,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4365079365079365 [2024-06-04 17:06:40,565 INFO L175 Difference]: Start difference. First operand has 168 places, 219 transitions, 2511 flow. Second operand 6 states and 110 transitions. [2024-06-04 17:06:40,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 240 transitions, 3170 flow [2024-06-04 17:06:40,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 240 transitions, 2923 flow, removed 42 selfloop flow, removed 7 redundant places. [2024-06-04 17:06:40,825 INFO L231 Difference]: Finished difference. Result has 167 places, 224 transitions, 2408 flow [2024-06-04 17:06:40,826 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} [2024-06-04 17:06:40,826 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 124 predicate places. [2024-06-04 17:06:40,826 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 224 transitions, 2408 flow [2024-06-04 17:06:40,826 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) [2024-06-04 17:06:40,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:06:40,827 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:06:40,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-06-04 17:06:40,827 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)] === [2024-06-04 17:06:40,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:06:40,827 INFO L85 PathProgramCache]: Analyzing trace with hash -68849146, now seen corresponding path program 2 times [2024-06-04 17:06:40,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:06:40,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817571880] [2024-06-04 17:06:40,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:06:40,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:06:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:06:52,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:06:52,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:06:52,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817571880] [2024-06-04 17:06:52,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817571880] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:06:52,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:06:52,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:06:52,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123111416] [2024-06-04 17:06:52,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:06:52,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:06:52,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:06:52,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:06:52,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:06:52,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:06:52,354 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) [2024-06-04 17:06:52,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:06:52,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:06:52,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:06:54,006 INFO L124 PetriNetUnfolderBase]: 2729/4026 cut-off events. [2024-06-04 17:06:54,007 INFO L125 PetriNetUnfolderBase]: For 258800/258800 co-relation queries the response was YES. [2024-06-04 17:06:54,026 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. [2024-06-04 17:06:54,041 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 217 selfloop transitions, 33 changer transitions 0/253 dead transitions. [2024-06-04 17:06:54,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 253 transitions, 3148 flow [2024-06-04 17:06:54,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:06:54,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:06:54,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 143 transitions. [2024-06-04 17:06:54,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4255952380952381 [2024-06-04 17:06:54,043 INFO L175 Difference]: Start difference. First operand has 167 places, 224 transitions, 2408 flow. Second operand 8 states and 143 transitions. [2024-06-04 17:06:54,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 253 transitions, 3148 flow [2024-06-04 17:06:54,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 253 transitions, 3089 flow, removed 17 selfloop flow, removed 3 redundant places. [2024-06-04 17:06:54,200 INFO L231 Difference]: Finished difference. Result has 172 places, 227 transitions, 2524 flow [2024-06-04 17:06:54,200 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} [2024-06-04 17:06:54,201 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 129 predicate places. [2024-06-04 17:06:54,201 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 227 transitions, 2524 flow [2024-06-04 17:06:54,201 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) [2024-06-04 17:06:54,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:06:54,201 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:06:54,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-06-04 17:06:54,202 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)] === [2024-06-04 17:06:54,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:06:54,202 INFO L85 PathProgramCache]: Analyzing trace with hash 391138382, now seen corresponding path program 1 times [2024-06-04 17:06:54,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:06:54,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354237786] [2024-06-04 17:06:54,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:06:54,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:06:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:07:04,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:07:04,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:07:04,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354237786] [2024-06-04 17:07:04,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354237786] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:07:04,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:07:04,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:07:04,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905891726] [2024-06-04 17:07:04,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:07:04,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:07:04,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:07:04,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:07:04,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:07:04,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:07:04,293 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) [2024-06-04 17:07:04,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:07:04,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:07:04,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:07:06,006 INFO L124 PetriNetUnfolderBase]: 2731/4029 cut-off events. [2024-06-04 17:07:06,006 INFO L125 PetriNetUnfolderBase]: For 267000/267000 co-relation queries the response was YES. [2024-06-04 17:07:06,033 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. [2024-06-04 17:07:06,062 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 216 selfloop transitions, 38 changer transitions 0/257 dead transitions. [2024-06-04 17:07:06,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 257 transitions, 3296 flow [2024-06-04 17:07:06,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:07:06,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:07:06,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 144 transitions. [2024-06-04 17:07:06,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-06-04 17:07:06,073 INFO L175 Difference]: Start difference. First operand has 172 places, 227 transitions, 2524 flow. Second operand 8 states and 144 transitions. [2024-06-04 17:07:06,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 257 transitions, 3296 flow [2024-06-04 17:07:06,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 257 transitions, 3147 flow, removed 44 selfloop flow, removed 6 redundant places. [2024-06-04 17:07:06,312 INFO L231 Difference]: Finished difference. Result has 174 places, 231 transitions, 2587 flow [2024-06-04 17:07:06,313 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} [2024-06-04 17:07:06,313 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 131 predicate places. [2024-06-04 17:07:06,313 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 231 transitions, 2587 flow [2024-06-04 17:07:06,313 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) [2024-06-04 17:07:06,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:07:06,314 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:07:06,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-06-04 17:07:06,314 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)] === [2024-06-04 17:07:06,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:07:06,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1816310782, now seen corresponding path program 7 times [2024-06-04 17:07:06,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:07:06,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307558127] [2024-06-04 17:07:06,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:07:06,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:07:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:07:16,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:07:16,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:07:16,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307558127] [2024-06-04 17:07:16,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307558127] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:07:16,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:07:16,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:07:16,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030663973] [2024-06-04 17:07:16,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:07:16,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:07:16,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:07:16,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:07:16,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:07:17,039 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:07:17,039 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) [2024-06-04 17:07:17,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:07:17,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:07:17,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:07:18,777 INFO L124 PetriNetUnfolderBase]: 2767/4081 cut-off events. [2024-06-04 17:07:18,777 INFO L125 PetriNetUnfolderBase]: For 281957/281957 co-relation queries the response was YES. [2024-06-04 17:07:18,798 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. [2024-06-04 17:07:18,817 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 221 selfloop transitions, 42 changer transitions 0/266 dead transitions. [2024-06-04 17:07:18,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 266 transitions, 3399 flow [2024-06-04 17:07:18,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:07:18,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:07:18,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 161 transitions. [2024-06-04 17:07:18,819 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-06-04 17:07:18,819 INFO L175 Difference]: Start difference. First operand has 174 places, 231 transitions, 2587 flow. Second operand 9 states and 161 transitions. [2024-06-04 17:07:18,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 266 transitions, 3399 flow [2024-06-04 17:07:19,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 266 transitions, 3247 flow, removed 43 selfloop flow, removed 6 redundant places. [2024-06-04 17:07:19,084 INFO L231 Difference]: Finished difference. Result has 177 places, 235 transitions, 2657 flow [2024-06-04 17:07:19,084 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} [2024-06-04 17:07:19,085 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 134 predicate places. [2024-06-04 17:07:19,085 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 235 transitions, 2657 flow [2024-06-04 17:07:19,086 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) [2024-06-04 17:07:19,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:07:19,086 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:07:19,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-06-04 17:07:19,086 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)] === [2024-06-04 17:07:19,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:07:19,086 INFO L85 PathProgramCache]: Analyzing trace with hash -68552476, now seen corresponding path program 3 times [2024-06-04 17:07:19,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:07:19,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990845677] [2024-06-04 17:07:19,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:07:19,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:07:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:07:29,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:07:29,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:07:29,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990845677] [2024-06-04 17:07:29,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990845677] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:07:29,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:07:29,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:07:29,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080527642] [2024-06-04 17:07:29,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:07:29,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:07:29,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:07:29,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:07:29,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:07:29,273 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:07:29,273 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) [2024-06-04 17:07:29,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:07:29,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:07:29,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:07:30,942 INFO L124 PetriNetUnfolderBase]: 2795/4125 cut-off events. [2024-06-04 17:07:30,943 INFO L125 PetriNetUnfolderBase]: For 296444/296444 co-relation queries the response was YES. [2024-06-04 17:07:30,965 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. [2024-06-04 17:07:30,981 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 233 selfloop transitions, 28 changer transitions 0/264 dead transitions. [2024-06-04 17:07:30,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 264 transitions, 3435 flow [2024-06-04 17:07:30,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:07:30,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:07:30,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 142 transitions. [2024-06-04 17:07:30,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4226190476190476 [2024-06-04 17:07:30,983 INFO L175 Difference]: Start difference. First operand has 177 places, 235 transitions, 2657 flow. Second operand 8 states and 142 transitions. [2024-06-04 17:07:30,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 264 transitions, 3435 flow [2024-06-04 17:07:31,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 264 transitions, 3245 flow, removed 56 selfloop flow, removed 7 redundant places. [2024-06-04 17:07:31,211 INFO L231 Difference]: Finished difference. Result has 178 places, 238 transitions, 2643 flow [2024-06-04 17:07:31,211 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} [2024-06-04 17:07:31,211 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 135 predicate places. [2024-06-04 17:07:31,212 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 238 transitions, 2643 flow [2024-06-04 17:07:31,212 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) [2024-06-04 17:07:31,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:07:31,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:07:31,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-06-04 17:07:31,212 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)] === [2024-06-04 17:07:31,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:07:31,213 INFO L85 PathProgramCache]: Analyzing trace with hash -305204430, now seen corresponding path program 8 times [2024-06-04 17:07:31,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:07:31,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918870324] [2024-06-04 17:07:31,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:07:31,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:07:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:07:42,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:07:42,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:07:42,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918870324] [2024-06-04 17:07:42,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918870324] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:07:42,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:07:42,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:07:42,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128409454] [2024-06-04 17:07:42,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:07:42,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:07:42,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:07:42,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:07:42,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:07:42,491 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:07:42,492 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) [2024-06-04 17:07:42,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:07:42,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:07:42,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:07:44,347 INFO L124 PetriNetUnfolderBase]: 2831/4177 cut-off events. [2024-06-04 17:07:44,348 INFO L125 PetriNetUnfolderBase]: For 311561/311561 co-relation queries the response was YES. [2024-06-04 17:07:44,376 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. [2024-06-04 17:07:44,399 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 216 selfloop transitions, 60 changer transitions 0/279 dead transitions. [2024-06-04 17:07:44,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 279 transitions, 3731 flow [2024-06-04 17:07:44,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:07:44,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:07:44,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2024-06-04 17:07:44,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4365079365079365 [2024-06-04 17:07:44,413 INFO L175 Difference]: Start difference. First operand has 178 places, 238 transitions, 2643 flow. Second operand 9 states and 165 transitions. [2024-06-04 17:07:44,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 279 transitions, 3731 flow [2024-06-04 17:07:44,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 279 transitions, 3579 flow, removed 50 selfloop flow, removed 6 redundant places. [2024-06-04 17:07:44,710 INFO L231 Difference]: Finished difference. Result has 182 places, 245 transitions, 2833 flow [2024-06-04 17:07:44,711 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} [2024-06-04 17:07:44,713 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 139 predicate places. [2024-06-04 17:07:44,713 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 245 transitions, 2833 flow [2024-06-04 17:07:44,713 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) [2024-06-04 17:07:44,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:07:44,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:07:44,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-06-04 17:07:44,713 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)] === [2024-06-04 17:07:44,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:07:44,714 INFO L85 PathProgramCache]: Analyzing trace with hash 162822266, now seen corresponding path program 9 times [2024-06-04 17:07:44,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:07:44,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015318130] [2024-06-04 17:07:44,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:07:44,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:07:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:07:55,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:07:55,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:07:55,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015318130] [2024-06-04 17:07:55,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015318130] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:07:55,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:07:55,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:07:55,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340831107] [2024-06-04 17:07:55,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:07:55,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:07:55,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:07:55,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:07:55,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:07:55,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:07:55,324 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) [2024-06-04 17:07:55,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:07:55,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:07:55,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:07:57,196 INFO L124 PetriNetUnfolderBase]: 2867/4229 cut-off events. [2024-06-04 17:07:57,197 INFO L125 PetriNetUnfolderBase]: For 328103/328103 co-relation queries the response was YES. [2024-06-04 17:07:57,218 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. [2024-06-04 17:07:57,237 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 218 selfloop transitions, 69 changer transitions 0/290 dead transitions. [2024-06-04 17:07:57,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 290 transitions, 4259 flow [2024-06-04 17:07:57,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:07:57,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:07:57,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 168 transitions. [2024-06-04 17:07:57,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-06-04 17:07:57,239 INFO L175 Difference]: Start difference. First operand has 182 places, 245 transitions, 2833 flow. Second operand 9 states and 168 transitions. [2024-06-04 17:07:57,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 290 transitions, 4259 flow [2024-06-04 17:07:57,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 290 transitions, 4005 flow, removed 68 selfloop flow, removed 6 redundant places. [2024-06-04 17:07:57,500 INFO L231 Difference]: Finished difference. Result has 186 places, 253 transitions, 2995 flow [2024-06-04 17:07:57,500 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} [2024-06-04 17:07:57,500 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 143 predicate places. [2024-06-04 17:07:57,501 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 253 transitions, 2995 flow [2024-06-04 17:07:57,501 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) [2024-06-04 17:07:57,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:07:57,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:07:57,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-06-04 17:07:57,501 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)] === [2024-06-04 17:07:57,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:07:57,502 INFO L85 PathProgramCache]: Analyzing trace with hash 163006840, now seen corresponding path program 4 times [2024-06-04 17:07:57,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:07:57,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481628219] [2024-06-04 17:07:57,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:07:57,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:07:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:08:08,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:08:08,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:08:08,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481628219] [2024-06-04 17:08:08,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481628219] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:08:08,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:08:08,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:08:08,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715425413] [2024-06-04 17:08:08,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:08:08,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:08:08,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:08:08,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:08:08,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:08:09,196 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:08:09,197 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) [2024-06-04 17:08:09,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:08:09,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:08:09,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:08:10,990 INFO L124 PetriNetUnfolderBase]: 2870/4234 cut-off events. [2024-06-04 17:08:10,991 INFO L125 PetriNetUnfolderBase]: For 342013/342013 co-relation queries the response was YES. [2024-06-04 17:08:11,020 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. [2024-06-04 17:08:11,045 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 251 selfloop transitions, 30 changer transitions 0/284 dead transitions. [2024-06-04 17:08:11,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 284 transitions, 3935 flow [2024-06-04 17:08:11,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:08:11,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:08:11,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 144 transitions. [2024-06-04 17:08:11,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-06-04 17:08:11,049 INFO L175 Difference]: Start difference. First operand has 186 places, 253 transitions, 2995 flow. Second operand 8 states and 144 transitions. [2024-06-04 17:08:11,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 284 transitions, 3935 flow [2024-06-04 17:08:11,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 284 transitions, 3698 flow, removed 85 selfloop flow, removed 5 redundant places. [2024-06-04 17:08:11,364 INFO L231 Difference]: Finished difference. Result has 189 places, 256 transitions, 2954 flow [2024-06-04 17:08:11,364 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} [2024-06-04 17:08:11,365 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 146 predicate places. [2024-06-04 17:08:11,365 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 256 transitions, 2954 flow [2024-06-04 17:08:11,365 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) [2024-06-04 17:08:11,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:08:11,365 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:08:11,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-06-04 17:08:11,366 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)] === [2024-06-04 17:08:11,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:08:11,366 INFO L85 PathProgramCache]: Analyzing trace with hash 162822142, now seen corresponding path program 5 times [2024-06-04 17:08:11,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:08:11,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718542517] [2024-06-04 17:08:11,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:08:11,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:08:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:08:23,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:08:23,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:08:23,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718542517] [2024-06-04 17:08:23,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718542517] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:08:23,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:08:23,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:08:23,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67554228] [2024-06-04 17:08:23,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:08:23,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:08:23,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:08:23,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:08:23,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:08:23,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:08:23,992 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) [2024-06-04 17:08:23,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:08:23,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:08:23,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:08:25,853 INFO L124 PetriNetUnfolderBase]: 2725/4084 cut-off events. [2024-06-04 17:08:25,855 INFO L125 PetriNetUnfolderBase]: For 333745/333809 co-relation queries the response was YES. [2024-06-04 17:08:25,876 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. [2024-06-04 17:08:25,894 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 217 selfloop transitions, 19 changer transitions 0/286 dead transitions. [2024-06-04 17:08:25,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 286 transitions, 3612 flow [2024-06-04 17:08:25,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:08:25,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:08:25,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 156 transitions. [2024-06-04 17:08:25,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4126984126984127 [2024-06-04 17:08:25,898 INFO L175 Difference]: Start difference. First operand has 189 places, 256 transitions, 2954 flow. Second operand 9 states and 156 transitions. [2024-06-04 17:08:25,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 286 transitions, 3612 flow [2024-06-04 17:08:26,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 286 transitions, 3440 flow, removed 58 selfloop flow, removed 6 redundant places. [2024-06-04 17:08:26,183 INFO L231 Difference]: Finished difference. Result has 192 places, 258 transitions, 2947 flow [2024-06-04 17:08:26,184 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} [2024-06-04 17:08:26,184 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 149 predicate places. [2024-06-04 17:08:26,184 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 258 transitions, 2947 flow [2024-06-04 17:08:26,184 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) [2024-06-04 17:08:26,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:08:26,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:08:26,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-06-04 17:08:26,185 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)] === [2024-06-04 17:08:26,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:08:26,185 INFO L85 PathProgramCache]: Analyzing trace with hash 162999896, now seen corresponding path program 10 times [2024-06-04 17:08:26,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:08:26,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282570552] [2024-06-04 17:08:26,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:08:26,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:08:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:08:37,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:08:37,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:08:37,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282570552] [2024-06-04 17:08:37,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282570552] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:08:37,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:08:37,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:08:37,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702936878] [2024-06-04 17:08:37,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:08:37,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:08:37,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:08:37,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:08:37,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:08:37,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:08:37,642 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) [2024-06-04 17:08:37,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:08:37,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:08:37,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:08:39,484 INFO L124 PetriNetUnfolderBase]: 2866/4228 cut-off events. [2024-06-04 17:08:39,485 INFO L125 PetriNetUnfolderBase]: For 351123/351123 co-relation queries the response was YES. [2024-06-04 17:08:39,508 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. [2024-06-04 17:08:39,529 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 233 selfloop transitions, 59 changer transitions 0/295 dead transitions. [2024-06-04 17:08:39,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 295 transitions, 3942 flow [2024-06-04 17:08:39,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:08:39,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:08:39,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2024-06-04 17:08:39,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4365079365079365 [2024-06-04 17:08:39,531 INFO L175 Difference]: Start difference. First operand has 192 places, 258 transitions, 2947 flow. Second operand 9 states and 165 transitions. [2024-06-04 17:08:39,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 295 transitions, 3942 flow [2024-06-04 17:08:39,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 295 transitions, 3795 flow, removed 56 selfloop flow, removed 7 redundant places. [2024-06-04 17:08:39,818 INFO L231 Difference]: Finished difference. Result has 194 places, 262 transitions, 3066 flow [2024-06-04 17:08:39,818 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} [2024-06-04 17:08:39,819 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 151 predicate places. [2024-06-04 17:08:39,819 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 262 transitions, 3066 flow [2024-06-04 17:08:39,819 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) [2024-06-04 17:08:39,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:08:39,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:08:39,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-06-04 17:08:39,820 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)] === [2024-06-04 17:08:39,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:08:39,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1481792305, now seen corresponding path program 2 times [2024-06-04 17:08:39,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:08:39,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022514669] [2024-06-04 17:08:39,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:08:39,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:08:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:08:52,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:08:52,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:08:52,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022514669] [2024-06-04 17:08:52,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022514669] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:08:52,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:08:52,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-04 17:08:52,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416048629] [2024-06-04 17:08:52,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:08:52,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-04 17:08:52,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:08:52,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-04 17:08:52,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-04 17:08:52,953 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-04 17:08:52,954 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) [2024-06-04 17:08:52,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:08:52,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-04 17:08:52,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:08:54,423 INFO L124 PetriNetUnfolderBase]: 2688/4024 cut-off events. [2024-06-04 17:08:54,424 INFO L125 PetriNetUnfolderBase]: For 349612/349636 co-relation queries the response was YES. [2024-06-04 17:08:54,445 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. [2024-06-04 17:08:54,462 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 239 selfloop transitions, 13 changer transitions 0/271 dead transitions. [2024-06-04 17:08:54,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 271 transitions, 3592 flow [2024-06-04 17:08:54,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 17:08:54,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 17:08:54,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 101 transitions. [2024-06-04 17:08:54,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4007936507936508 [2024-06-04 17:08:54,464 INFO L175 Difference]: Start difference. First operand has 194 places, 262 transitions, 3066 flow. Second operand 6 states and 101 transitions. [2024-06-04 17:08:54,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 271 transitions, 3592 flow [2024-06-04 17:08:54,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 271 transitions, 3376 flow, removed 68 selfloop flow, removed 6 redundant places. [2024-06-04 17:08:54,734 INFO L231 Difference]: Finished difference. Result has 194 places, 262 transitions, 2884 flow [2024-06-04 17:08:54,735 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} [2024-06-04 17:08:54,735 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 151 predicate places. [2024-06-04 17:08:54,735 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 262 transitions, 2884 flow [2024-06-04 17:08:54,735 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) [2024-06-04 17:08:54,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:08:54,736 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:08:54,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-06-04 17:08:54,736 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)] === [2024-06-04 17:08:54,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:08:54,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1220222261, now seen corresponding path program 1 times [2024-06-04 17:08:54,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:08:54,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215189773] [2024-06-04 17:08:54,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:08:54,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:08:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:09:10,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:09:10,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:09:10,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215189773] [2024-06-04 17:09:10,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215189773] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:09:10,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:09:10,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-04 17:09:10,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001814121] [2024-06-04 17:09:10,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:09:10,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-04 17:09:10,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:09:10,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-04 17:09:10,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-04 17:09:10,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:09:10,633 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) [2024-06-04 17:09:10,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:09:10,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:09:10,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:09:12,259 INFO L124 PetriNetUnfolderBase]: 2859/4219 cut-off events. [2024-06-04 17:09:12,260 INFO L125 PetriNetUnfolderBase]: For 356113/356113 co-relation queries the response was YES. [2024-06-04 17:09:12,285 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. [2024-06-04 17:09:12,304 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 251 selfloop transitions, 24 changer transitions 0/278 dead transitions. [2024-06-04 17:09:12,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 278 transitions, 3608 flow [2024-06-04 17:09:12,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 17:09:12,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 17:09:12,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 106 transitions. [2024-06-04 17:09:12,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42063492063492064 [2024-06-04 17:09:12,306 INFO L175 Difference]: Start difference. First operand has 194 places, 262 transitions, 2884 flow. Second operand 6 states and 106 transitions. [2024-06-04 17:09:12,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 278 transitions, 3608 flow [2024-06-04 17:09:12,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 278 transitions, 3558 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-06-04 17:09:12,616 INFO L231 Difference]: Finished difference. Result has 195 places, 265 transitions, 2937 flow [2024-06-04 17:09:12,616 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} [2024-06-04 17:09:12,617 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 152 predicate places. [2024-06-04 17:09:12,617 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 265 transitions, 2937 flow [2024-06-04 17:09:12,617 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) [2024-06-04 17:09:12,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:09:12,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:09:12,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-06-04 17:09:12,618 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)] === [2024-06-04 17:09:12,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:09:12,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1481786353, now seen corresponding path program 2 times [2024-06-04 17:09:12,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:09:12,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647360992] [2024-06-04 17:09:12,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:09:12,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:09:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:09:28,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:09:28,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:09:28,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647360992] [2024-06-04 17:09:28,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647360992] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:09:28,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:09:28,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-04 17:09:28,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213843740] [2024-06-04 17:09:28,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:09:28,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-04 17:09:28,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:09:28,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-04 17:09:28,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-04 17:09:28,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:09:28,850 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) [2024-06-04 17:09:28,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:09:28,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:09:28,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:09:30,433 INFO L124 PetriNetUnfolderBase]: 2827/4172 cut-off events. [2024-06-04 17:09:30,434 INFO L125 PetriNetUnfolderBase]: For 363747/363749 co-relation queries the response was YES. [2024-06-04 17:09:30,459 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. [2024-06-04 17:09:30,477 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 246 selfloop transitions, 25 changer transitions 0/274 dead transitions. [2024-06-04 17:09:30,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 274 transitions, 3501 flow [2024-06-04 17:09:30,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 17:09:30,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 17:09:30,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2024-06-04 17:09:30,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4087301587301587 [2024-06-04 17:09:30,479 INFO L175 Difference]: Start difference. First operand has 195 places, 265 transitions, 2937 flow. Second operand 6 states and 103 transitions. [2024-06-04 17:09:30,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 274 transitions, 3501 flow [2024-06-04 17:09:30,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 274 transitions, 3449 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-06-04 17:09:30,814 INFO L231 Difference]: Finished difference. Result has 197 places, 265 transitions, 2941 flow [2024-06-04 17:09:30,814 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} [2024-06-04 17:09:30,814 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 154 predicate places. [2024-06-04 17:09:30,815 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 265 transitions, 2941 flow [2024-06-04 17:09:30,815 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) [2024-06-04 17:09:30,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:09:30,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:09:30,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-06-04 17:09:30,815 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)] === [2024-06-04 17:09:30,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:09:30,816 INFO L85 PathProgramCache]: Analyzing trace with hash -403890604, now seen corresponding path program 1 times [2024-06-04 17:09:30,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:09:30,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773341482] [2024-06-04 17:09:30,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:09:30,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:09:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:09:42,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:09:42,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:09:42,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773341482] [2024-06-04 17:09:42,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773341482] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:09:42,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:09:42,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-04 17:09:42,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679848801] [2024-06-04 17:09:42,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:09:42,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-04 17:09:42,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:09:42,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-04 17:09:42,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-06-04 17:09:42,774 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:09:42,774 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) [2024-06-04 17:09:42,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:09:42,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:09:42,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:09:45,161 INFO L124 PetriNetUnfolderBase]: 3165/4708 cut-off events. [2024-06-04 17:09:45,162 INFO L125 PetriNetUnfolderBase]: For 469972/469972 co-relation queries the response was YES. [2024-06-04 17:09:45,191 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. [2024-06-04 17:09:45,214 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 277 selfloop transitions, 57 changer transitions 0/337 dead transitions. [2024-06-04 17:09:45,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 337 transitions, 4707 flow [2024-06-04 17:09:45,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-04 17:09:45,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-04 17:09:45,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 215 transitions. [2024-06-04 17:09:45,215 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4653679653679654 [2024-06-04 17:09:45,216 INFO L175 Difference]: Start difference. First operand has 197 places, 265 transitions, 2941 flow. Second operand 11 states and 215 transitions. [2024-06-04 17:09:45,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 337 transitions, 4707 flow [2024-06-04 17:09:45,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 337 transitions, 4641 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-06-04 17:09:45,643 INFO L231 Difference]: Finished difference. Result has 205 places, 271 transitions, 3260 flow [2024-06-04 17:09:45,643 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} [2024-06-04 17:09:45,644 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 162 predicate places. [2024-06-04 17:09:45,644 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 271 transitions, 3260 flow [2024-06-04 17:09:45,644 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) [2024-06-04 17:09:45,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:09:45,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:09:45,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-06-04 17:09:45,645 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)] === [2024-06-04 17:09:45,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:09:45,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1352398392, now seen corresponding path program 2 times [2024-06-04 17:09:45,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:09:45,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007765702] [2024-06-04 17:09:45,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:09:45,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:09:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:09:57,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:09:57,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:09:57,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007765702] [2024-06-04 17:09:57,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007765702] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:09:57,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:09:57,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-04 17:09:57,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519513547] [2024-06-04 17:09:57,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:09:57,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-04 17:09:57,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:09:57,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-04 17:09:57,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-06-04 17:09:57,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:09:57,716 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) [2024-06-04 17:09:57,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:09:57,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:09:57,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:09:59,853 INFO L124 PetriNetUnfolderBase]: 3289/4912 cut-off events. [2024-06-04 17:09:59,854 INFO L125 PetriNetUnfolderBase]: For 532109/532109 co-relation queries the response was YES. [2024-06-04 17:09:59,885 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. [2024-06-04 17:09:59,909 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 270 selfloop transitions, 56 changer transitions 0/329 dead transitions. [2024-06-04 17:09:59,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 329 transitions, 4533 flow [2024-06-04 17:09:59,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-04 17:09:59,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-04 17:09:59,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 209 transitions. [2024-06-04 17:09:59,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-06-04 17:09:59,910 INFO L175 Difference]: Start difference. First operand has 205 places, 271 transitions, 3260 flow. Second operand 11 states and 209 transitions. [2024-06-04 17:09:59,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 329 transitions, 4533 flow [2024-06-04 17:10:00,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 329 transitions, 4354 flow, removed 58 selfloop flow, removed 6 redundant places. [2024-06-04 17:10:00,430 INFO L231 Difference]: Finished difference. Result has 210 places, 273 transitions, 3324 flow [2024-06-04 17:10:00,430 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} [2024-06-04 17:10:00,431 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 167 predicate places. [2024-06-04 17:10:00,431 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 273 transitions, 3324 flow [2024-06-04 17:10:00,431 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) [2024-06-04 17:10:00,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:10:00,431 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:10:00,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-06-04 17:10:00,431 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)] === [2024-06-04 17:10:00,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:10:00,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1352394672, now seen corresponding path program 3 times [2024-06-04 17:10:00,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:10:00,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939393324] [2024-06-04 17:10:00,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:10:00,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:10:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:10:12,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:10:12,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:10:12,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939393324] [2024-06-04 17:10:12,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939393324] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:10:12,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:10:12,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-04 17:10:12,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93198427] [2024-06-04 17:10:12,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:10:12,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-04 17:10:12,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:10:12,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-04 17:10:12,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-04 17:10:12,765 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:10:12,771 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) [2024-06-04 17:10:12,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:10:12,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:10:12,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:10:15,102 INFO L124 PetriNetUnfolderBase]: 3457/5180 cut-off events. [2024-06-04 17:10:15,103 INFO L125 PetriNetUnfolderBase]: For 555911/555911 co-relation queries the response was YES. [2024-06-04 17:10:15,134 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. [2024-06-04 17:10:15,157 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 277 selfloop transitions, 57 changer transitions 0/337 dead transitions. [2024-06-04 17:10:15,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 337 transitions, 4832 flow [2024-06-04 17:10:15,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-04 17:10:15,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-04 17:10:15,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 212 transitions. [2024-06-04 17:10:15,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4588744588744589 [2024-06-04 17:10:15,159 INFO L175 Difference]: Start difference. First operand has 210 places, 273 transitions, 3324 flow. Second operand 11 states and 212 transitions. [2024-06-04 17:10:15,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 337 transitions, 4832 flow [2024-06-04 17:10:15,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 337 transitions, 4646 flow, removed 39 selfloop flow, removed 9 redundant places. [2024-06-04 17:10:15,735 INFO L231 Difference]: Finished difference. Result has 213 places, 277 transitions, 3474 flow [2024-06-04 17:10:15,735 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} [2024-06-04 17:10:15,736 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 170 predicate places. [2024-06-04 17:10:15,736 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 277 transitions, 3474 flow [2024-06-04 17:10:15,736 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) [2024-06-04 17:10:15,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:10:15,737 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:10:15,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-06-04 17:10:15,737 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)] === [2024-06-04 17:10:15,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:10:15,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1641679112, now seen corresponding path program 4 times [2024-06-04 17:10:15,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:10:15,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432440618] [2024-06-04 17:10:15,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:10:15,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:10:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:10:27,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:10:27,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:10:27,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432440618] [2024-06-04 17:10:27,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432440618] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:10:27,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:10:27,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-04 17:10:27,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335657729] [2024-06-04 17:10:27,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:10:27,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-04 17:10:27,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:10:27,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-04 17:10:27,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-04 17:10:28,061 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:10:28,061 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) [2024-06-04 17:10:28,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:10:28,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:10:28,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:10:30,372 INFO L124 PetriNetUnfolderBase]: 3581/5384 cut-off events. [2024-06-04 17:10:30,372 INFO L125 PetriNetUnfolderBase]: For 586703/586703 co-relation queries the response was YES. [2024-06-04 17:10:30,408 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. [2024-06-04 17:10:30,434 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 279 selfloop transitions, 44 changer transitions 0/326 dead transitions. [2024-06-04 17:10:30,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 326 transitions, 4627 flow [2024-06-04 17:10:30,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-04 17:10:30,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-04 17:10:30,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 186 transitions. [2024-06-04 17:10:30,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44285714285714284 [2024-06-04 17:10:30,436 INFO L175 Difference]: Start difference. First operand has 213 places, 277 transitions, 3474 flow. Second operand 10 states and 186 transitions. [2024-06-04 17:10:30,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 326 transitions, 4627 flow [2024-06-04 17:10:31,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 326 transitions, 4446 flow, removed 57 selfloop flow, removed 7 redundant places. [2024-06-04 17:10:31,085 INFO L231 Difference]: Finished difference. Result has 216 places, 279 transitions, 3520 flow [2024-06-04 17:10:31,086 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} [2024-06-04 17:10:31,086 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 173 predicate places. [2024-06-04 17:10:31,086 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 279 transitions, 3520 flow [2024-06-04 17:10:31,086 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) [2024-06-04 17:10:31,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:10:31,087 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:10:31,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-06-04 17:10:31,087 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)] === [2024-06-04 17:10:31,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:10:31,087 INFO L85 PathProgramCache]: Analyzing trace with hash -315171022, now seen corresponding path program 1 times [2024-06-04 17:10:31,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:10:31,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688133380] [2024-06-04 17:10:31,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:10:31,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:10:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:10:42,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:10:42,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:10:42,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688133380] [2024-06-04 17:10:42,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688133380] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:10:42,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:10:42,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:10:42,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627234278] [2024-06-04 17:10:42,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:10:42,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:10:42,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:10:42,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:10:42,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:10:42,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:10:42,775 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) [2024-06-04 17:10:42,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:10:42,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:10:42,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:10:45,062 INFO L124 PetriNetUnfolderBase]: 3609/5428 cut-off events. [2024-06-04 17:10:45,062 INFO L125 PetriNetUnfolderBase]: For 571421/571421 co-relation queries the response was YES. [2024-06-04 17:10:45,096 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. [2024-06-04 17:10:45,120 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 281 selfloop transitions, 35 changer transitions 0/319 dead transitions. [2024-06-04 17:10:45,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 319 transitions, 4496 flow [2024-06-04 17:10:45,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:10:45,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:10:45,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 164 transitions. [2024-06-04 17:10:45,121 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43386243386243384 [2024-06-04 17:10:45,121 INFO L175 Difference]: Start difference. First operand has 216 places, 279 transitions, 3520 flow. Second operand 9 states and 164 transitions. [2024-06-04 17:10:45,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 319 transitions, 4496 flow [2024-06-04 17:10:45,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 319 transitions, 4326 flow, removed 43 selfloop flow, removed 8 redundant places. [2024-06-04 17:10:45,740 INFO L231 Difference]: Finished difference. Result has 217 places, 282 transitions, 3570 flow [2024-06-04 17:10:45,740 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} [2024-06-04 17:10:45,741 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 174 predicate places. [2024-06-04 17:10:45,741 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 282 transitions, 3570 flow [2024-06-04 17:10:45,741 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) [2024-06-04 17:10:45,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:10:45,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:10:45,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-06-04 17:10:45,742 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)] === [2024-06-04 17:10:45,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:10:45,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1439086482, now seen corresponding path program 5 times [2024-06-04 17:10:45,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:10:45,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647855864] [2024-06-04 17:10:45,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:10:45,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:10:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:10:58,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:10:58,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:10:58,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647855864] [2024-06-04 17:10:58,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647855864] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:10:58,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:10:58,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-04 17:10:58,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029739009] [2024-06-04 17:10:58,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:10:58,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-04 17:10:58,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:10:58,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-04 17:10:58,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-04 17:10:59,221 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:10:59,221 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) [2024-06-04 17:10:59,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:10:59,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:10:59,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:11:01,694 INFO L124 PetriNetUnfolderBase]: 3705/5588 cut-off events. [2024-06-04 17:11:01,694 INFO L125 PetriNetUnfolderBase]: For 612393/612393 co-relation queries the response was YES. [2024-06-04 17:11:01,732 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. [2024-06-04 17:11:01,759 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 291 selfloop transitions, 45 changer transitions 0/339 dead transitions. [2024-06-04 17:11:01,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 339 transitions, 5182 flow [2024-06-04 17:11:01,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-04 17:11:01,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-04 17:11:01,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 190 transitions. [2024-06-04 17:11:01,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-06-04 17:11:01,761 INFO L175 Difference]: Start difference. First operand has 217 places, 282 transitions, 3570 flow. Second operand 10 states and 190 transitions. [2024-06-04 17:11:01,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 339 transitions, 5182 flow [2024-06-04 17:11:02,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 339 transitions, 4986 flow, removed 65 selfloop flow, removed 7 redundant places. [2024-06-04 17:11:02,498 INFO L231 Difference]: Finished difference. Result has 221 places, 286 transitions, 3704 flow [2024-06-04 17:11:02,499 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} [2024-06-04 17:11:02,499 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 178 predicate places. [2024-06-04 17:11:02,499 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 286 transitions, 3704 flow [2024-06-04 17:11:02,499 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) [2024-06-04 17:11:02,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:11:02,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:11:02,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-06-04 17:11:02,500 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)] === [2024-06-04 17:11:02,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:11:02,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1439234352, now seen corresponding path program 6 times [2024-06-04 17:11:02,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:11:02,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53897745] [2024-06-04 17:11:02,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:11:02,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:11:02,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:11:14,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:11:14,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:11:14,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53897745] [2024-06-04 17:11:14,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53897745] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:11:14,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:11:14,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-04 17:11:14,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230393621] [2024-06-04 17:11:14,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:11:14,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-04 17:11:14,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:11:14,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-04 17:11:14,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-06-04 17:11:14,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:11:14,875 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) [2024-06-04 17:11:14,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:11:14,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:11:14,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:11:17,232 INFO L124 PetriNetUnfolderBase]: 3718/5611 cut-off events. [2024-06-04 17:11:17,233 INFO L125 PetriNetUnfolderBase]: For 633116/633116 co-relation queries the response was YES. [2024-06-04 17:11:17,267 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. [2024-06-04 17:11:17,293 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 293 selfloop transitions, 38 changer transitions 0/334 dead transitions. [2024-06-04 17:11:17,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 334 transitions, 4778 flow [2024-06-04 17:11:17,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-04 17:11:17,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-04 17:11:17,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 184 transitions. [2024-06-04 17:11:17,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4380952380952381 [2024-06-04 17:11:17,294 INFO L175 Difference]: Start difference. First operand has 221 places, 286 transitions, 3704 flow. Second operand 10 states and 184 transitions. [2024-06-04 17:11:17,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 334 transitions, 4778 flow [2024-06-04 17:11:17,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 334 transitions, 4602 flow, removed 63 selfloop flow, removed 6 redundant places. [2024-06-04 17:11:17,877 INFO L231 Difference]: Finished difference. Result has 225 places, 288 transitions, 3754 flow [2024-06-04 17:11:17,878 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} [2024-06-04 17:11:17,878 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 182 predicate places. [2024-06-04 17:11:17,878 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 288 transitions, 3754 flow [2024-06-04 17:11:17,878 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) [2024-06-04 17:11:17,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:11:17,881 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:11:17,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-06-04 17:11:17,881 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)] === [2024-06-04 17:11:17,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:11:17,881 INFO L85 PathProgramCache]: Analyzing trace with hash 723863468, now seen corresponding path program 2 times [2024-06-04 17:11:17,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:11:17,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682680785] [2024-06-04 17:11:17,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:11:17,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:11:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:11:29,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:11:29,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:11:29,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682680785] [2024-06-04 17:11:29,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682680785] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:11:29,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:11:29,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:11:29,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869298618] [2024-06-04 17:11:29,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:11:29,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:11:29,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:11:29,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:11:29,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:11:29,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:11:29,504 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) [2024-06-04 17:11:29,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:11:29,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:11:29,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:11:31,668 INFO L124 PetriNetUnfolderBase]: 3746/5657 cut-off events. [2024-06-04 17:11:31,668 INFO L125 PetriNetUnfolderBase]: For 584199/584201 co-relation queries the response was YES. [2024-06-04 17:11:31,713 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. [2024-06-04 17:11:31,742 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 244 selfloop transitions, 81 changer transitions 0/328 dead transitions. [2024-06-04 17:11:31,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 328 transitions, 4884 flow [2024-06-04 17:11:31,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:11:31,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:11:31,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 171 transitions. [2024-06-04 17:11:31,743 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-06-04 17:11:31,744 INFO L175 Difference]: Start difference. First operand has 225 places, 288 transitions, 3754 flow. Second operand 9 states and 171 transitions. [2024-06-04 17:11:31,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 328 transitions, 4884 flow [2024-06-04 17:11:32,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 328 transitions, 4720 flow, removed 46 selfloop flow, removed 8 redundant places. [2024-06-04 17:11:32,500 INFO L231 Difference]: Finished difference. Result has 226 places, 291 transitions, 3912 flow [2024-06-04 17:11:32,500 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} [2024-06-04 17:11:32,501 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 183 predicate places. [2024-06-04 17:11:32,501 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 291 transitions, 3912 flow [2024-06-04 17:11:32,501 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) [2024-06-04 17:11:32,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:11:32,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:11:32,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-06-04 17:11:32,502 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)] === [2024-06-04 17:11:32,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:11:32,502 INFO L85 PathProgramCache]: Analyzing trace with hash 723870908, now seen corresponding path program 3 times [2024-06-04 17:11:32,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:11:32,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318094660] [2024-06-04 17:11:32,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:11:32,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:11:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:11:43,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:11:43,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:11:43,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318094660] [2024-06-04 17:11:43,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318094660] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:11:43,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:11:43,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-04 17:11:43,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544822754] [2024-06-04 17:11:43,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:11:43,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-04 17:11:43,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:11:43,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-04 17:11:43,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-06-04 17:11:44,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:11:44,090 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) [2024-06-04 17:11:44,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:11:44,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:11:44,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:11:46,545 INFO L124 PetriNetUnfolderBase]: 3812/5759 cut-off events. [2024-06-04 17:11:46,545 INFO L125 PetriNetUnfolderBase]: For 615106/615108 co-relation queries the response was YES. [2024-06-04 17:11:46,581 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. [2024-06-04 17:11:46,608 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 241 selfloop transitions, 92 changer transitions 0/336 dead transitions. [2024-06-04 17:11:46,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 336 transitions, 5450 flow [2024-06-04 17:11:46,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:11:46,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:11:46,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2024-06-04 17:11:46,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4576719576719577 [2024-06-04 17:11:46,609 INFO L175 Difference]: Start difference. First operand has 226 places, 291 transitions, 3912 flow. Second operand 9 states and 173 transitions. [2024-06-04 17:11:46,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 336 transitions, 5450 flow [2024-06-04 17:11:47,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 336 transitions, 5148 flow, removed 72 selfloop flow, removed 7 redundant places. [2024-06-04 17:11:47,374 INFO L231 Difference]: Finished difference. Result has 228 places, 297 transitions, 4112 flow [2024-06-04 17:11:47,375 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} [2024-06-04 17:11:47,375 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 185 predicate places. [2024-06-04 17:11:47,375 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 297 transitions, 4112 flow [2024-06-04 17:11:47,375 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) [2024-06-04 17:11:47,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:11:47,376 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:11:47,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-06-04 17:11:47,376 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)] === [2024-06-04 17:11:47,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:11:47,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1030755620, now seen corresponding path program 7 times [2024-06-04 17:11:47,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:11:47,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178368375] [2024-06-04 17:11:47,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:11:47,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:11:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:11:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:11:57,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:11:57,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178368375] [2024-06-04 17:11:57,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178368375] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:11:57,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:11:57,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-04 17:11:57,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320926339] [2024-06-04 17:11:57,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:11:57,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-04 17:11:57,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:11:57,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-04 17:11:57,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-06-04 17:11:57,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:11:57,343 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) [2024-06-04 17:11:57,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:11:57,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:11:57,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:11:59,859 INFO L124 PetriNetUnfolderBase]: 3936/5963 cut-off events. [2024-06-04 17:11:59,860 INFO L125 PetriNetUnfolderBase]: For 703192/703194 co-relation queries the response was YES. [2024-06-04 17:11:59,898 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. [2024-06-04 17:11:59,924 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 244 selfloop transitions, 98 changer transitions 0/345 dead transitions. [2024-06-04 17:11:59,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 345 transitions, 5340 flow [2024-06-04 17:11:59,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-04 17:11:59,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-04 17:11:59,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 192 transitions. [2024-06-04 17:11:59,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45714285714285713 [2024-06-04 17:11:59,926 INFO L175 Difference]: Start difference. First operand has 228 places, 297 transitions, 4112 flow. Second operand 10 states and 192 transitions. [2024-06-04 17:11:59,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 345 transitions, 5340 flow [2024-06-04 17:12:00,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 345 transitions, 5042 flow, removed 90 selfloop flow, removed 6 redundant places. [2024-06-04 17:12:00,794 INFO L231 Difference]: Finished difference. Result has 232 places, 299 transitions, 4162 flow [2024-06-04 17:12:00,795 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} [2024-06-04 17:12:00,795 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 189 predicate places. [2024-06-04 17:12:00,795 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 299 transitions, 4162 flow [2024-06-04 17:12:00,795 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) [2024-06-04 17:12:00,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:12:00,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:12:00,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-06-04 17:12:00,796 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)] === [2024-06-04 17:12:00,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:12:00,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1036112048, now seen corresponding path program 4 times [2024-06-04 17:12:00,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:12:00,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790579823] [2024-06-04 17:12:00,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:12:00,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:12:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:12:12,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:12:12,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:12:12,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790579823] [2024-06-04 17:12:12,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790579823] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:12:12,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:12:12,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:12:12,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204428762] [2024-06-04 17:12:12,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:12:12,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:12:12,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:12:12,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:12:12,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:12:12,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:12:12,198 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) [2024-06-04 17:12:12,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:12:12,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:12:12,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:12:14,638 INFO L124 PetriNetUnfolderBase]: 3926/5948 cut-off events. [2024-06-04 17:12:14,639 INFO L125 PetriNetUnfolderBase]: For 657117/657121 co-relation queries the response was YES. [2024-06-04 17:12:14,678 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. [2024-06-04 17:12:14,706 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 259 selfloop transitions, 79 changer transitions 0/341 dead transitions. [2024-06-04 17:12:14,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 341 transitions, 5320 flow [2024-06-04 17:12:14,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-04 17:12:14,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-04 17:12:14,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 188 transitions. [2024-06-04 17:12:14,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44761904761904764 [2024-06-04 17:12:14,708 INFO L175 Difference]: Start difference. First operand has 232 places, 299 transitions, 4162 flow. Second operand 10 states and 188 transitions. [2024-06-04 17:12:14,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 341 transitions, 5320 flow [2024-06-04 17:12:15,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 341 transitions, 4928 flow, removed 100 selfloop flow, removed 8 redundant places. [2024-06-04 17:12:15,468 INFO L231 Difference]: Finished difference. Result has 234 places, 299 transitions, 3936 flow [2024-06-04 17:12:15,468 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} [2024-06-04 17:12:15,469 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 191 predicate places. [2024-06-04 17:12:15,469 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 299 transitions, 3936 flow [2024-06-04 17:12:15,469 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) [2024-06-04 17:12:15,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:12:15,470 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:12:15,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-06-04 17:12:15,470 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)] === [2024-06-04 17:12:15,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:12:15,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1036118000, now seen corresponding path program 8 times [2024-06-04 17:12:15,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:12:15,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003707101] [2024-06-04 17:12:15,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:12:15,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:12:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:12:25,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:12:25,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:12:25,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003707101] [2024-06-04 17:12:25,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003707101] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:12:25,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:12:25,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-04 17:12:25,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051982991] [2024-06-04 17:12:25,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:12:25,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-04 17:12:25,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:12:25,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-04 17:12:25,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-06-04 17:12:25,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:12:25,341 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) [2024-06-04 17:12:25,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:12:25,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:12:25,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:12:27,851 INFO L124 PetriNetUnfolderBase]: 4050/6153 cut-off events. [2024-06-04 17:12:27,851 INFO L125 PetriNetUnfolderBase]: For 717366/717368 co-relation queries the response was YES. [2024-06-04 17:12:27,912 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. [2024-06-04 17:12:27,949 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 252 selfloop transitions, 93 changer transitions 0/348 dead transitions. [2024-06-04 17:12:27,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 348 transitions, 5308 flow [2024-06-04 17:12:27,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-04 17:12:27,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-04 17:12:27,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 193 transitions. [2024-06-04 17:12:27,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4595238095238095 [2024-06-04 17:12:27,951 INFO L175 Difference]: Start difference. First operand has 234 places, 299 transitions, 3936 flow. Second operand 10 states and 193 transitions. [2024-06-04 17:12:27,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 348 transitions, 5308 flow [2024-06-04 17:12:28,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 348 transitions, 5135 flow, removed 8 selfloop flow, removed 8 redundant places. [2024-06-04 17:12:28,945 INFO L231 Difference]: Finished difference. Result has 236 places, 301 transitions, 4103 flow [2024-06-04 17:12:28,945 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} [2024-06-04 17:12:28,946 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 193 predicate places. [2024-06-04 17:12:28,946 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 301 transitions, 4103 flow [2024-06-04 17:12:28,946 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) [2024-06-04 17:12:28,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:12:28,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:12:28,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-06-04 17:12:28,946 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)] === [2024-06-04 17:12:28,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:12:28,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1036262150, now seen corresponding path program 9 times [2024-06-04 17:12:28,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:12:28,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717731810] [2024-06-04 17:12:28,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:12:28,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:12:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:12:41,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:12:41,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:12:41,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717731810] [2024-06-04 17:12:41,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717731810] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:12:41,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:12:41,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-04 17:12:41,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278518233] [2024-06-04 17:12:41,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:12:41,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-04 17:12:41,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:12:41,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-04 17:12:41,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-06-04 17:12:41,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-06-04 17:12:41,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 301 transitions, 4103 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) [2024-06-04 17:12:41,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:12:41,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-06-04 17:12:41,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:12:44,043 INFO L124 PetriNetUnfolderBase]: 4174/6357 cut-off events. [2024-06-04 17:12:44,044 INFO L125 PetriNetUnfolderBase]: For 777734/777736 co-relation queries the response was YES. [2024-06-04 17:12:44,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61866 conditions, 6357 events. 4174/6357 cut-off events. For 777734/777736 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 35336 event pairs, 915 based on Foata normal form. 32/6389 useless extension candidates. Maximal degree in co-relation 61750. Up to 5529 conditions per place. [2024-06-04 17:12:44,117 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 260 selfloop transitions, 88 changer transitions 0/351 dead transitions. [2024-06-04 17:12:44,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 351 transitions, 5621 flow [2024-06-04 17:12:44,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-04 17:12:44,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-04 17:12:44,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 194 transitions. [2024-06-04 17:12:44,119 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46190476190476193 [2024-06-04 17:12:44,119 INFO L175 Difference]: Start difference. First operand has 236 places, 301 transitions, 4103 flow. Second operand 10 states and 194 transitions. [2024-06-04 17:12:44,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 351 transitions, 5621 flow Killed by 15