./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-05-07_14-17-48.files/protection/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b44c8288 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i ./goblint.2024-05-07_14-17-48.files/protection/mix047_power.opt_pso.opt_rmo.opt_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 --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-b44c828-m [2024-05-12 13:25:34,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-12 13:25:34,552 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-05-12 13:25:34,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-12 13:25:34,559 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-12 13:25:34,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-12 13:25:34,583 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-12 13:25:34,584 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-12 13:25:34,584 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-05-12 13:25:34,587 INFO L153 SettingsManager]: * Use memory slicer=true [2024-05-12 13:25:34,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-12 13:25:34,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-12 13:25:34,588 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-12 13:25:34,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-12 13:25:34,589 INFO L153 SettingsManager]: * Use SBE=true [2024-05-12 13:25:34,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-12 13:25:34,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-12 13:25:34,590 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-12 13:25:34,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-12 13:25:34,591 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-12 13:25:34,591 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-12 13:25:34,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-12 13:25:34,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-12 13:25:34,591 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-12 13:25:34,592 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-05-12 13:25:34,592 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-12 13:25:34,592 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-12 13:25:34,592 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-12 13:25:34,593 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-12 13:25:34,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-12 13:25:34,594 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-05-12 13:25:34,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-12 13:25:34,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 13:25:34,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-12 13:25:34,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-12 13:25:34,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-12 13:25:34,595 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-12 13:25:34,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-12 13:25:34,595 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-12 13:25:34,595 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-05-12 13:25:34,596 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-12 13:25:34,596 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-05-12 13:25:34,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-05-12 13:25:34,596 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-05-12 13:25:34,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-12 13:25:34,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-12 13:25:34,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-12 13:25:34,841 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-12 13:25:34,841 INFO L274 PluginConnector]: CDTParser initialized [2024-05-12 13:25:34,842 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-05-12 13:25:35,978 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-12 13:25:36,212 INFO L384 CDTParser]: Found 1 translation units. [2024-05-12 13:25:36,214 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-05-12 13:25:36,229 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d9562adc/a5fd3c53c8c3484ca7783107f699e67d/FLAG34f172d4a [2024-05-12 13:25:36,242 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d9562adc/a5fd3c53c8c3484ca7783107f699e67d [2024-05-12 13:25:36,244 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-05-12 13:25:36,245 INFO L274 PluginConnector]: Witness Parser initialized [2024-05-12 13:25:36,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-07_14-17-48.files/protection/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.yml/witness.yml [2024-05-12 13:25:36,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-12 13:25:36,408 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-12 13:25:36,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-12 13:25:36,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-12 13:25:36,414 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-12 13:25:36,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 01:25:36" (1/2) ... [2024-05-12 13:25:36,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74cf936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:25:36, skipping insertion in model container [2024-05-12 13:25:36,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 01:25:36" (1/2) ... [2024-05-12 13:25:36,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@580d4e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:25:36, skipping insertion in model container [2024-05-12 13:25:36,418 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 01:25:36" (2/2) ... [2024-05-12 13:25:36,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74cf936 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:25:36, skipping insertion in model container [2024-05-12 13:25:36,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 01:25:36" (2/2) ... [2024-05-12 13:25:36,420 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-05-12 13:25:36,534 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-05-12 13:25:36,535 INFO L97 edCorrectnessWitness]: Location invariant before [L851-L851] (((((((((((((((((((((! multithreaded || z$r_buff1_thd3 == (_Bool)0) && (! multithreaded || ((((0 <= z$w_buff0 && z$w_buff0 <= 2) && z$w_buff0 <= 127) && z$w_buff0 % 2 == 0) && (z$w_buff0 == 0 || z$w_buff0 == 2)))) && (! multithreaded || (((0 <= z$mem_tmp && z$mem_tmp <= 2) && z$mem_tmp <= 127) && ((z$mem_tmp == 0 || z$mem_tmp == 1) || z$mem_tmp == 2)))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p3_EBX && __unbuffered_p3_EBX <= 1) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)))) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || (((0 <= z && z <= 2) && z <= 127) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || ((((0 <= z$w_buff1 && z$w_buff1 <= 2) && z$w_buff1 <= 127) && z$w_buff1 % 2 == 0) && (z$w_buff1 == 0 || z$w_buff1 == 2)))) && (! multithreaded || ((0 <= b && b <= 1) && (b == 0 || b == 1)))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0) [2024-05-12 13:25:36,535 INFO L97 edCorrectnessWitness]: Location invariant before [L849-L849] (((((((((((((((((((((! multithreaded || z$r_buff1_thd3 == (_Bool)0) && (! multithreaded || ((((0 <= z$w_buff0 && z$w_buff0 <= 2) && z$w_buff0 <= 127) && z$w_buff0 % 2 == 0) && (z$w_buff0 == 0 || z$w_buff0 == 2)))) && (! multithreaded || (((0 <= z$mem_tmp && z$mem_tmp <= 2) && z$mem_tmp <= 127) && ((z$mem_tmp == 0 || z$mem_tmp == 1) || z$mem_tmp == 2)))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p3_EBX && __unbuffered_p3_EBX <= 1) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)))) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || (((0 <= z && z <= 2) && z <= 127) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || ((((0 <= z$w_buff1 && z$w_buff1 <= 2) && z$w_buff1 <= 127) && z$w_buff1 % 2 == 0) && (z$w_buff1 == 0 || z$w_buff1 == 2)))) && (! multithreaded || ((0 <= b && b <= 1) && (b == 0 || b == 1)))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0) [2024-05-12 13:25:36,536 INFO L97 edCorrectnessWitness]: Location invariant before [L852-L852] (((((((((((((((((((((! multithreaded || z$r_buff1_thd3 == (_Bool)0) && (! multithreaded || ((((0 <= z$w_buff0 && z$w_buff0 <= 2) && z$w_buff0 <= 127) && z$w_buff0 % 2 == 0) && (z$w_buff0 == 0 || z$w_buff0 == 2)))) && (! multithreaded || (((0 <= z$mem_tmp && z$mem_tmp <= 2) && z$mem_tmp <= 127) && ((z$mem_tmp == 0 || z$mem_tmp == 1) || z$mem_tmp == 2)))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p3_EBX && __unbuffered_p3_EBX <= 1) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)))) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || (((0 <= z && z <= 2) && z <= 127) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || ((((0 <= z$w_buff1 && z$w_buff1 <= 2) && z$w_buff1 <= 127) && z$w_buff1 % 2 == 0) && (z$w_buff1 == 0 || z$w_buff1 == 2)))) && (! multithreaded || ((0 <= b && b <= 1) && (b == 0 || b == 1)))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0) [2024-05-12 13:25:36,536 INFO L97 edCorrectnessWitness]: Location invariant before [L847-L847] (((((((((((((((((((((! multithreaded || z$r_buff1_thd3 == (_Bool)0) && (! multithreaded || ((((0 <= z$w_buff0 && z$w_buff0 <= 2) && z$w_buff0 <= 127) && z$w_buff0 % 2 == 0) && (z$w_buff0 == 0 || z$w_buff0 == 2)))) && (! multithreaded || (((0 <= z$mem_tmp && z$mem_tmp <= 2) && z$mem_tmp <= 127) && ((z$mem_tmp == 0 || z$mem_tmp == 1) || z$mem_tmp == 2)))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p3_EBX && __unbuffered_p3_EBX <= 1) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)))) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || (((0 <= z && z <= 2) && z <= 127) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || z$flush_delayed == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || z$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || ((((0 <= z$w_buff1 && z$w_buff1 <= 2) && z$w_buff1 <= 127) && z$w_buff1 % 2 == 0) && (z$w_buff1 == 0 || z$w_buff1 == 2)))) && (! multithreaded || ((0 <= b && b <= 1) && (b == 0 || b == 1)))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0) [2024-05-12 13:25:36,536 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-05-12 13:25:36,537 INFO L106 edCorrectnessWitness]: ghost_update [L845-L845] multithreaded = 1; [2024-05-12 13:25:36,573 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-12 13:25:36,731 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2024-05-12 13:25:36,882 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 13:25:36,890 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-05-12 13:25:36,922 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-05-12 13:25:36,999 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 13:25:37,036 INFO L206 MainTranslator]: Completed translation [2024-05-12 13:25:37,039 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:25:37 WrapperNode [2024-05-12 13:25:37,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-12 13:25:37,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-12 13:25:37,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-12 13:25:37,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-12 13:25:37,046 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 12.05 01:25:37" (1/1) ... [2024-05-12 13:25:37,072 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 12.05 01:25:37" (1/1) ... [2024-05-12 13:25:37,114 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 173 [2024-05-12 13:25:37,116 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-12 13:25:37,117 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-12 13:25:37,117 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-12 13:25:37,117 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-12 13:25:37,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:25:37" (1/1) ... [2024-05-12 13:25:37,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:25:37" (1/1) ... [2024-05-12 13:25:37,140 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:25:37" (1/1) ... [2024-05-12 13:25:37,165 INFO L175 MemorySlicer]: Split 6 memory accesses to 5 slices as follows [2, 1, 1, 1, 1]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-05-12 13:25:37,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:25:37" (1/1) ... [2024-05-12 13:25:37,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:25:37" (1/1) ... [2024-05-12 13:25:37,176 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:25:37" (1/1) ... [2024-05-12 13:25:37,185 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:25:37" (1/1) ... [2024-05-12 13:25:37,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:25:37" (1/1) ... [2024-05-12 13:25:37,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:25:37" (1/1) ... [2024-05-12 13:25:37,198 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-12 13:25:37,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-12 13:25:37,201 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-12 13:25:37,202 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-12 13:25:37,203 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:25:37" (1/1) ... [2024-05-12 13:25:37,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 13:25:37,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-05-12 13:25:37,269 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) [2024-05-12 13:25:37,310 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 [2024-05-12 13:25:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-05-12 13:25:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-05-12 13:25:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-05-12 13:25:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-05-12 13:25:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-05-12 13:25:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-12 13:25:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-12 13:25:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-12 13:25:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-12 13:25:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-05-12 13:25:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-05-12 13:25:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-05-12 13:25:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-05-12 13:25:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-05-12 13:25:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-05-12 13:25:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-05-12 13:25:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-05-12 13:25:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-05-12 13:25:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-05-12 13:25:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-05-12 13:25:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-05-12 13:25:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-05-12 13:25:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-12 13:25:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-12 13:25:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-12 13:25:37,342 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-12 13:25:37,447 INFO L244 CfgBuilder]: Building ICFG [2024-05-12 13:25:37,449 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-12 13:25:37,798 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-05-12 13:25:37,799 INFO L293 CfgBuilder]: Performing block encoding [2024-05-12 13:25:37,950 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-12 13:25:37,950 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-12 13:25:37,951 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 01:25:37 BoogieIcfgContainer [2024-05-12 13:25:37,951 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-12 13:25:37,953 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-12 13:25:37,953 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-12 13:25:37,955 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-12 13:25:37,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.05 01:25:36" (1/4) ... [2024-05-12 13:25:37,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178e18d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 01:25:37, skipping insertion in model container [2024-05-12 13:25:37,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 01:25:36" (2/4) ... [2024-05-12 13:25:37,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178e18d3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 01:25:37, skipping insertion in model container [2024-05-12 13:25:37,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:25:37" (3/4) ... [2024-05-12 13:25:37,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178e18d3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 01:25:37, skipping insertion in model container [2024-05-12 13:25:37,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 01:25:37" (4/4) ... [2024-05-12 13:25:37,958 INFO L112 eAbstractionObserver]: Analyzing ICFG mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-05-12 13:25:37,971 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-12 13:25:37,971 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-05-12 13:25:37,972 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-12 13:25:38,048 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-05-12 13:25:38,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 60 transitions, 136 flow [2024-05-12 13:25:38,112 INFO L124 PetriNetUnfolderBase]: 1/56 cut-off events. [2024-05-12 13:25:38,112 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 13:25:38,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 56 events. 1/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2024-05-12 13:25:38,117 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 60 transitions, 136 flow [2024-05-12 13:25:38,120 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 56 transitions, 124 flow [2024-05-12 13:25:38,129 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-12 13:25:38,133 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;@128d7eae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-12 13:25:38,134 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-05-12 13:25:38,137 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-05-12 13:25:38,137 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-05-12 13:25:38,137 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 13:25:38,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:25:38,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-05-12 13:25:38,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:25:38,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:25:38,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1233816654, now seen corresponding path program 1 times [2024-05-12 13:25:38,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:25:38,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954727770] [2024-05-12 13:25:38,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:25:38,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:25:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:25:39,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:25:39,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:25:39,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954727770] [2024-05-12 13:25:39,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954727770] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:25:39,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:25:39,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-05-12 13:25:39,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892148436] [2024-05-12 13:25:39,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:25:39,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 13:25:39,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:25:39,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 13:25:39,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 13:25:39,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 60 [2024-05-12 13:25:39,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 56 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 13:25:39,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:25:39,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 60 [2024-05-12 13:25:39,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:25:42,950 INFO L124 PetriNetUnfolderBase]: 28216/41439 cut-off events. [2024-05-12 13:25:42,950 INFO L125 PetriNetUnfolderBase]: For 177/177 co-relation queries the response was YES. [2024-05-12 13:25:43,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79142 conditions, 41439 events. 28216/41439 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 1525. Compared 294028 event pairs, 24411 based on Foata normal form. 1051/39745 useless extension candidates. Maximal degree in co-relation 79126. Up to 37317 conditions per place. [2024-05-12 13:25:43,201 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 56 selfloop transitions, 6 changer transitions 0/75 dead transitions. [2024-05-12 13:25:43,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 75 transitions, 295 flow [2024-05-12 13:25:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 13:25:43,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 13:25:43,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-05-12 13:25:43,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6611111111111111 [2024-05-12 13:25:43,212 INFO L175 Difference]: Start difference. First operand has 68 places, 56 transitions, 124 flow. Second operand 3 states and 119 transitions. [2024-05-12 13:25:43,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 75 transitions, 295 flow [2024-05-12 13:25:43,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 75 transitions, 288 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-05-12 13:25:43,221 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 164 flow [2024-05-12 13:25:43,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2024-05-12 13:25:43,225 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, -1 predicate places. [2024-05-12 13:25:43,226 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 164 flow [2024-05-12 13:25:43,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 13:25:43,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:25:43,226 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:25:43,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-12 13:25:43,227 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:25:43,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:25:43,232 INFO L85 PathProgramCache]: Analyzing trace with hash -286772079, now seen corresponding path program 1 times [2024-05-12 13:25:43,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:25:43,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908748518] [2024-05-12 13:25:43,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:25:43,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:25:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:25:44,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:25:44,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:25:44,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908748518] [2024-05-12 13:25:44,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908748518] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:25:44,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:25:44,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-12 13:25:44,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907201167] [2024-05-12 13:25:44,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:25:44,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-12 13:25:44,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:25:44,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-12 13:25:44,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-05-12 13:25:44,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-05-12 13:25:44,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 13:25:44,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:25:44,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-05-12 13:25:44,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:25:47,416 INFO L124 PetriNetUnfolderBase]: 32175/46478 cut-off events. [2024-05-12 13:25:47,416 INFO L125 PetriNetUnfolderBase]: For 6938/6938 co-relation queries the response was YES. [2024-05-12 13:25:47,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98966 conditions, 46478 events. 32175/46478 cut-off events. For 6938/6938 co-relation queries the response was YES. Maximal size of possible extension queue 1648. Compared 320723 event pairs, 25403 based on Foata normal form. 4/43925 useless extension candidates. Maximal degree in co-relation 98951. Up to 42441 conditions per place. [2024-05-12 13:25:47,842 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 72 selfloop transitions, 11 changer transitions 0/95 dead transitions. [2024-05-12 13:25:47,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 95 transitions, 420 flow [2024-05-12 13:25:47,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-12 13:25:47,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-05-12 13:25:47,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 151 transitions. [2024-05-12 13:25:47,845 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6291666666666667 [2024-05-12 13:25:47,846 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 164 flow. Second operand 4 states and 151 transitions. [2024-05-12 13:25:47,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 95 transitions, 420 flow [2024-05-12 13:25:47,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 95 transitions, 414 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-05-12 13:25:47,848 INFO L231 Difference]: Finished difference. Result has 70 places, 65 transitions, 222 flow [2024-05-12 13:25:47,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=70, PETRI_TRANSITIONS=65} [2024-05-12 13:25:47,849 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, 2 predicate places. [2024-05-12 13:25:47,849 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 65 transitions, 222 flow [2024-05-12 13:25:47,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 13:25:47,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:25:47,849 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:25:47,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-12 13:25:47,850 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:25:47,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:25:47,850 INFO L85 PathProgramCache]: Analyzing trace with hash -299997961, now seen corresponding path program 1 times [2024-05-12 13:25:47,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:25:47,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821164670] [2024-05-12 13:25:47,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:25:47,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:25:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:25:48,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:25:48,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:25:48,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821164670] [2024-05-12 13:25:48,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821164670] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:25:48,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:25:48,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-12 13:25:48,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23190740] [2024-05-12 13:25:48,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:25:48,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-12 13:25:48,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:25:48,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-12 13:25:48,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-05-12 13:25:48,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-05-12 13:25:48,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 65 transitions, 222 flow. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 13:25:48,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:25:48,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-05-12 13:25:48,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:25:52,171 INFO L124 PetriNetUnfolderBase]: 32220/43807 cut-off events. [2024-05-12 13:25:52,171 INFO L125 PetriNetUnfolderBase]: For 17058/17058 co-relation queries the response was YES. [2024-05-12 13:25:52,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105986 conditions, 43807 events. 32220/43807 cut-off events. For 17058/17058 co-relation queries the response was YES. Maximal size of possible extension queue 1500. Compared 271552 event pairs, 15328 based on Foata normal form. 7/42475 useless extension candidates. Maximal degree in co-relation 105969. Up to 42339 conditions per place. [2024-05-12 13:25:52,410 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 95 selfloop transitions, 26 changer transitions 0/133 dead transitions. [2024-05-12 13:25:52,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 133 transitions, 686 flow [2024-05-12 13:25:52,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 13:25:52,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 13:25:52,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 197 transitions. [2024-05-12 13:25:52,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6566666666666666 [2024-05-12 13:25:52,413 INFO L175 Difference]: Start difference. First operand has 70 places, 65 transitions, 222 flow. Second operand 5 states and 197 transitions. [2024-05-12 13:25:52,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 133 transitions, 686 flow [2024-05-12 13:25:52,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 133 transitions, 662 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-05-12 13:25:52,418 INFO L231 Difference]: Finished difference. Result has 75 places, 82 transitions, 383 flow [2024-05-12 13:25:52,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=383, PETRI_PLACES=75, PETRI_TRANSITIONS=82} [2024-05-12 13:25:52,419 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, 7 predicate places. [2024-05-12 13:25:52,419 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 82 transitions, 383 flow [2024-05-12 13:25:52,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 13:25:52,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:25:52,420 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:25:52,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-12 13:25:52,420 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:25:52,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:25:52,421 INFO L85 PathProgramCache]: Analyzing trace with hash -535169994, now seen corresponding path program 1 times [2024-05-12 13:25:52,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:25:52,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692908842] [2024-05-12 13:25:52,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:25:52,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:25:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:25:53,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:25:53,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:25:53,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692908842] [2024-05-12 13:25:53,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692908842] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:25:53,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:25:53,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 13:25:53,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099913810] [2024-05-12 13:25:53,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:25:53,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-12 13:25:53,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:25:53,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-12 13:25:53,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-05-12 13:25:53,298 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-05-12 13:25:53,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 82 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 13:25:53,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:25:53,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-05-12 13:25:53,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:25:57,177 INFO L124 PetriNetUnfolderBase]: 32298/44493 cut-off events. [2024-05-12 13:25:57,177 INFO L125 PetriNetUnfolderBase]: For 44039/44043 co-relation queries the response was YES. [2024-05-12 13:25:57,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122946 conditions, 44493 events. 32298/44493 cut-off events. For 44039/44043 co-relation queries the response was YES. Maximal size of possible extension queue 1543. Compared 284579 event pairs, 13454 based on Foata normal form. 18/42917 useless extension candidates. Maximal degree in co-relation 122926. Up to 42323 conditions per place. [2024-05-12 13:25:57,452 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 107 selfloop transitions, 31 changer transitions 0/150 dead transitions. [2024-05-12 13:25:57,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 150 transitions, 873 flow [2024-05-12 13:25:57,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-12 13:25:57,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-05-12 13:25:57,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 230 transitions. [2024-05-12 13:25:57,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-05-12 13:25:57,456 INFO L175 Difference]: Start difference. First operand has 75 places, 82 transitions, 383 flow. Second operand 6 states and 230 transitions. [2024-05-12 13:25:57,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 150 transitions, 873 flow [2024-05-12 13:25:57,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 150 transitions, 857 flow, removed 8 selfloop flow, removed 0 redundant places. [2024-05-12 13:25:57,470 INFO L231 Difference]: Finished difference. Result has 80 places, 86 transitions, 479 flow [2024-05-12 13:25:57,471 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=479, PETRI_PLACES=80, PETRI_TRANSITIONS=86} [2024-05-12 13:25:57,472 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, 12 predicate places. [2024-05-12 13:25:57,472 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 86 transitions, 479 flow [2024-05-12 13:25:57,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 13:25:57,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:25:57,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:25:57,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-12 13:25:57,473 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:25:57,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:25:57,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1855683453, now seen corresponding path program 1 times [2024-05-12 13:25:57,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:25:57,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660116164] [2024-05-12 13:25:57,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:25:57,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:25:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:25:58,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:25:58,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:25:58,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660116164] [2024-05-12 13:25:58,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660116164] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:25:58,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:25:58,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 13:25:58,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703068442] [2024-05-12 13:25:58,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:25:58,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-12 13:25:58,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:25:58,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-12 13:25:58,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-05-12 13:25:58,273 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-05-12 13:25:58,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 86 transitions, 479 flow. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 13:25:58,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:25:58,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-05-12 13:25:58,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:26:02,463 INFO L124 PetriNetUnfolderBase]: 31787/44600 cut-off events. [2024-05-12 13:26:02,470 INFO L125 PetriNetUnfolderBase]: For 62012/62012 co-relation queries the response was YES. [2024-05-12 13:26:02,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132381 conditions, 44600 events. 31787/44600 cut-off events. For 62012/62012 co-relation queries the response was YES. Maximal size of possible extension queue 1481. Compared 291969 event pairs, 14023 based on Foata normal form. 3/43092 useless extension candidates. Maximal degree in co-relation 132358. Up to 41942 conditions per place. [2024-05-12 13:26:02,774 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 91 selfloop transitions, 12 changer transitions 0/115 dead transitions. [2024-05-12 13:26:02,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 115 transitions, 753 flow [2024-05-12 13:26:02,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 13:26:02,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 13:26:02,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-05-12 13:26:02,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2024-05-12 13:26:02,776 INFO L175 Difference]: Start difference. First operand has 80 places, 86 transitions, 479 flow. Second operand 5 states and 164 transitions. [2024-05-12 13:26:02,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 115 transitions, 753 flow [2024-05-12 13:26:02,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 115 transitions, 665 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-05-12 13:26:02,802 INFO L231 Difference]: Finished difference. Result has 81 places, 86 transitions, 427 flow [2024-05-12 13:26:02,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=427, PETRI_PLACES=81, PETRI_TRANSITIONS=86} [2024-05-12 13:26:02,804 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, 13 predicate places. [2024-05-12 13:26:02,804 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 86 transitions, 427 flow [2024-05-12 13:26:02,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 13:26:02,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:26:02,805 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:26:02,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-12 13:26:02,805 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:26:02,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:26:02,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1693052213, now seen corresponding path program 1 times [2024-05-12 13:26:02,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:26:02,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211397871] [2024-05-12 13:26:02,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:26:02,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:26:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:26:03,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:26:03,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:26:03,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211397871] [2024-05-12 13:26:03,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211397871] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:26:03,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:26:03,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-05-12 13:26:03,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473881782] [2024-05-12 13:26:03,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:26:03,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-12 13:26:03,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:26:03,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-12 13:26:03,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-05-12 13:26:03,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-05-12 13:26:03,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 86 transitions, 427 flow. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 13:26:03,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:26:03,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-05-12 13:26:03,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:26:07,982 INFO L124 PetriNetUnfolderBase]: 31831/44588 cut-off events. [2024-05-12 13:26:07,983 INFO L125 PetriNetUnfolderBase]: For 64199/64199 co-relation queries the response was YES. [2024-05-12 13:26:08,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132830 conditions, 44588 events. 31831/44588 cut-off events. For 64199/64199 co-relation queries the response was YES. Maximal size of possible extension queue 1476. Compared 288797 event pairs, 13483 based on Foata normal form. 5/43068 useless extension candidates. Maximal degree in co-relation 132805. Up to 41864 conditions per place. [2024-05-12 13:26:08,244 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 110 selfloop transitions, 27 changer transitions 0/149 dead transitions. [2024-05-12 13:26:08,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 149 transitions, 961 flow [2024-05-12 13:26:08,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-12 13:26:08,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-05-12 13:26:08,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2024-05-12 13:26:08,246 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5722222222222222 [2024-05-12 13:26:08,246 INFO L175 Difference]: Start difference. First operand has 81 places, 86 transitions, 427 flow. Second operand 6 states and 206 transitions. [2024-05-12 13:26:08,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 149 transitions, 961 flow [2024-05-12 13:26:08,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 149 transitions, 925 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-05-12 13:26:08,274 INFO L231 Difference]: Finished difference. Result has 85 places, 103 transitions, 612 flow [2024-05-12 13:26:08,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=612, PETRI_PLACES=85, PETRI_TRANSITIONS=103} [2024-05-12 13:26:08,275 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, 17 predicate places. [2024-05-12 13:26:08,275 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 103 transitions, 612 flow [2024-05-12 13:26:08,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 13:26:08,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:26:08,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:26:08,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-05-12 13:26:08,276 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-05-12 13:26:08,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:26:08,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1992166562, now seen corresponding path program 1 times [2024-05-12 13:26:08,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:26:08,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769019221] [2024-05-12 13:26:08,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:26:08,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:26:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:26:09,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:26:09,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:26:09,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769019221] [2024-05-12 13:26:09,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769019221] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:26:09,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:26:09,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-05-12 13:26:09,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694828143] [2024-05-12 13:26:09,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:26:09,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-05-12 13:26:09,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:26:09,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-12 13:26:09,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-05-12 13:26:09,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 60 [2024-05-12 13:26:09,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 103 transitions, 612 flow. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 13:26:09,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:26:09,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 60 [2024-05-12 13:26:09,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand