./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe019_power.oepc.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/safe019_power.oepc.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 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/safe019_power.oepc.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/safe019_power.oepc.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-958ec4d-m [2024-02-07 14:52:19,037 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:52:19,071 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:52:19,074 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:52:19,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:52:19,089 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:52:19,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:52:19,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:52:19,091 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:52:19,091 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:52:19,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:52:19,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:52:19,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:52:19,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:52:19,092 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:52:19,093 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:52:19,093 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:52:19,093 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:52:19,093 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:52:19,094 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:52:19,094 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:52:19,094 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:52:19,094 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:52:19,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:52:19,095 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:52:19,095 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:52:19,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:52:19,095 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:52:19,096 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:52:19,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:52:19,096 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:52:19,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:52:19,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:52:19,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:52:19,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:52:19,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:52:19,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:52:19,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:52:19,098 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:52:19,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:52:19,098 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:52:19,098 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:52:19,098 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:52:19,099 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:52:19,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:52:19,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:52:19,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:52:19,285 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:52:19,285 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:52:19,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/safe019_power.oepc.yml/witness.yml [2024-02-07 14:52:19,422 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:52:19,423 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:52:19,423 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_power.oepc.i [2024-02-07 14:52:20,431 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:52:20,634 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:52:20,634 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_power.oepc.i [2024-02-07 14:52:20,646 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f0b337c2/86327d1e38b547e6be6c57227beb04d1/FLAG017dac4e2 [2024-02-07 14:52:20,658 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f0b337c2/86327d1e38b547e6be6c57227beb04d1 [2024-02-07 14:52:20,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:52:20,660 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:52:20,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:52:20,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:52:20,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:52:20,675 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:52:19" (1/2) ... [2024-02-07 14:52:20,676 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2990e189 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:52:20, skipping insertion in model container [2024-02-07 14:52:20,676 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:52:19" (1/2) ... [2024-02-07 14:52:20,677 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6820f1c9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:52:20, skipping insertion in model container [2024-02-07 14:52:20,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:52:20" (2/2) ... [2024-02-07 14:52:20,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2990e189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:20, skipping insertion in model container [2024-02-07 14:52:20,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:52:20" (2/2) ... [2024-02-07 14:52:20,678 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:52:20,776 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:52:20,778 INFO L76 edCorrectnessWitness]: Location invariant before [L890-L890] y$flush_delayed == (_Bool)0 [2024-02-07 14:52:20,778 INFO L76 edCorrectnessWitness]: Location invariant before [L810-L810] ((0 <= __unbuffered_p2_EAX) && (__unbuffered_p2_EAX <= 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) [2024-02-07 14:52:20,778 INFO L76 edCorrectnessWitness]: Location invariant before [L809-L809] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 14:52:20,778 INFO L76 edCorrectnessWitness]: Location invariant before [L782-L782] (((0 <= y) && (y <= 2)) && (y <= 127)) && ((y == 0 || y == 1) || y == 2) [2024-02-07 14:52:20,778 INFO L76 edCorrectnessWitness]: Location invariant before [L871-L871] y$w_buff1_used == (_Bool)0 [2024-02-07 14:52:20,779 INFO L76 edCorrectnessWitness]: Location invariant before [L780-L780] ((((((((0 <= y) && (0 <= *__unbuffered_p0_EAX$read_delayed_var)) && (y <= 2)) && (y <= 127)) && (*__unbuffered_p0_EAX$read_delayed_var <= 2)) && (*__unbuffered_p0_EAX$read_delayed_var <= 127)) && (__unbuffered_p0_EAX$read_delayed_var == & y)) && ((y == 0 || y == 1) || y == 2)) && ((*__unbuffered_p0_EAX$read_delayed_var == 0 || *__unbuffered_p0_EAX$read_delayed_var == 1) || *__unbuffered_p0_EAX$read_delayed_var == 2) [2024-02-07 14:52:20,779 INFO L76 edCorrectnessWitness]: Location invariant before [L779-L779] __unbuffered_p0_EAX$read_delayed == (_Bool)1 [2024-02-07 14:52:20,779 INFO L76 edCorrectnessWitness]: Location invariant before [L767-L767] weak$$choice0 == (_Bool)0 || weak$$choice0 == (_Bool)1 [2024-02-07 14:52:20,780 INFO L76 edCorrectnessWitness]: Location invariant before [L823-L823] 1 <= __unbuffered_cnt [2024-02-07 14:52:20,780 INFO L76 edCorrectnessWitness]: Location invariant before [L877-L877] ((((0 <= y) && (y <= 2)) && (y <= 127)) && (y$flush_delayed == (_Bool)0 || y$flush_delayed == (_Bool)1)) && ((y == 0 || y == 1) || y == 2) [2024-02-07 14:52:20,780 INFO L76 edCorrectnessWitness]: Location invariant before [L864-L864] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 14:52:20,780 INFO L76 edCorrectnessWitness]: Location invariant before [L785-L785] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 14:52:20,780 INFO L76 edCorrectnessWitness]: Location invariant before [L891-L891] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 14:52:20,780 INFO L76 edCorrectnessWitness]: Location invariant before [L813-L813] y == 1 [2024-02-07 14:52:20,780 INFO L76 edCorrectnessWitness]: Location invariant before [L872-L872] y$r_buff1_thd0 == (_Bool)0 [2024-02-07 14:52:20,780 INFO L76 edCorrectnessWitness]: Location invariant before [L803-L803] 1 <= __unbuffered_cnt [2024-02-07 14:52:20,781 INFO L76 edCorrectnessWitness]: Location invariant before [L885-L885] y$r_buff1_thd0 == (_Bool)0 [2024-02-07 14:52:20,781 INFO L76 edCorrectnessWitness]: Location invariant before [L840-L840] 1 <= __unbuffered_cnt [2024-02-07 14:52:20,781 INFO L76 edCorrectnessWitness]: Location invariant before [L817-L817] y$w_buff1_used == (_Bool)0 [2024-02-07 14:52:20,781 INFO L76 edCorrectnessWitness]: Location invariant before [L863-L863] 0 <= __unbuffered_cnt [2024-02-07 14:52:20,781 INFO L76 edCorrectnessWitness]: Location invariant before [L837-L837] y$r_buff1_thd4 == (_Bool)0 [2024-02-07 14:52:20,782 INFO L76 edCorrectnessWitness]: Location invariant before [L819-L819] y$w_buff1_used == (_Bool)0 [2024-02-07 14:52:20,782 INFO L76 edCorrectnessWitness]: Location invariant before [L769-L769] ((((0 <= y) && (y <= 2)) && (y <= 127)) && (y$flush_delayed == (_Bool)0 || y$flush_delayed == (_Bool)1)) && ((y == 0 || y == 1) || y == 2) [2024-02-07 14:52:20,782 INFO L76 edCorrectnessWitness]: Location invariant before [L778-L778] y$r_buff1_thd1 == (_Bool)0 [2024-02-07 14:52:20,782 INFO L76 edCorrectnessWitness]: Location invariant before [L768-L768] weak$$choice2 == (_Bool)0 || weak$$choice2 == (_Bool)1 [2024-02-07 14:52:20,782 INFO L76 edCorrectnessWitness]: Location invariant before [L19-L19] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-07 14:52:20,783 INFO L76 edCorrectnessWitness]: Location invariant before [L836-L836] y$w_buff1_used == (_Bool)0 [2024-02-07 14:52:20,783 INFO L76 edCorrectnessWitness]: Location invariant before [L875-L875] weak$$choice0 == (_Bool)0 || weak$$choice0 == (_Bool)1 [2024-02-07 14:52:20,783 INFO L76 edCorrectnessWitness]: Location invariant before [L790-L790] 0 <= __unbuffered_cnt [2024-02-07 14:52:20,783 INFO L76 edCorrectnessWitness]: Location invariant before [L889-L889] (((0 <= y) && (y <= 2)) && (y <= 127)) && ((y == 0 || y == 1) || y == 2) [2024-02-07 14:52:20,783 INFO L76 edCorrectnessWitness]: Location invariant before [L786-L786] ((0 <= __unbuffered_p0_EBX) && (__unbuffered_p0_EBX <= 1)) && (__unbuffered_p0_EBX == 0 || __unbuffered_p0_EBX == 1) [2024-02-07 14:52:20,783 INFO L76 edCorrectnessWitness]: Location invariant before [L820-L820] y$r_buff1_thd3 == (_Bool)0 [2024-02-07 14:52:20,783 INFO L76 edCorrectnessWitness]: Location invariant before [L865-L865] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 14:52:20,784 INFO L76 edCorrectnessWitness]: Location invariant before [L791-L791] 1 <= __unbuffered_cnt [2024-02-07 14:52:20,784 INFO L76 edCorrectnessWitness]: Location invariant before [L770-L770] (((0 <= y$mem_tmp) && (y$mem_tmp <= 2)) && (y$mem_tmp <= 127)) && ((y$mem_tmp == 0 || y$mem_tmp == 1) || y$mem_tmp == 2) [2024-02-07 14:52:20,784 INFO L76 edCorrectnessWitness]: Location invariant before [L839-L839] 0 <= __unbuffered_cnt [2024-02-07 14:52:20,784 INFO L76 edCorrectnessWitness]: Location invariant before [L783-L783] y$flush_delayed == (_Bool)0 [2024-02-07 14:52:20,784 INFO L76 edCorrectnessWitness]: Location invariant before [L830-L830] y == 2 [2024-02-07 14:52:20,785 INFO L76 edCorrectnessWitness]: Location invariant before [L834-L834] y$w_buff1_used == (_Bool)0 [2024-02-07 14:52:20,785 INFO L76 edCorrectnessWitness]: Location invariant before [L822-L822] 0 <= __unbuffered_cnt [2024-02-07 14:52:20,786 INFO L76 edCorrectnessWitness]: Location invariant before [L887-L887] ((((0 <= __unbuffered_p2_EAX) && (__unbuffered_p2_EAX <= 1)) && (y == 2)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && ((__unbuffered_p0_EAX == 2 && (__unbuffered_p0_EBX == 0 || ((0 <= __unbuffered_p0_EBX && __unbuffered_p0_EBX <= 1) && (__unbuffered_p0_EBX == 0 || __unbuffered_p0_EBX == 1)))) || (((((0 <= __unbuffered_p0_EAX && 0 <= __unbuffered_p0_EBX) && __unbuffered_p0_EAX <= 2) && __unbuffered_p0_EBX <= 1) && (__unbuffered_p0_EBX == 0 || __unbuffered_p0_EBX == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2))) [2024-02-07 14:52:20,786 INFO L76 edCorrectnessWitness]: Location invariant before [L869-L869] y$w_buff1_used == (_Bool)0 [2024-02-07 14:52:20,786 INFO L76 edCorrectnessWitness]: Location invariant before [L876-L876] weak$$choice2 == (_Bool)0 || weak$$choice2 == (_Bool)1 [2024-02-07 14:52:20,786 INFO L76 edCorrectnessWitness]: Location invariant before [L798-L798] x == 1 [2024-02-07 14:52:20,786 INFO L76 edCorrectnessWitness]: Location invariant before [L802-L802] 0 <= __unbuffered_cnt [2024-02-07 14:52:20,787 INFO L76 edCorrectnessWitness]: Location invariant before [L855-L855] ((((0LL - (long long )y$w_buff0_used) + (long long )y$w_buff1_used >= 0LL) && ((long long )y$w_buff0_used + (long long )y$w_buff1_used >= 0LL)) && ((0LL - (long long )y$w_buff0_used) - (long long )y$w_buff1_used >= 0LL)) && ((long long )y$w_buff0_used - (long long )y$w_buff1_used >= 0LL) [2024-02-07 14:52:20,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:52:20,974 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_power.oepc.i[995,1008] [2024-02-07 14:52:21,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:52:21,142 INFO L203 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 14:52:21,170 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_power.oepc.i[995,1008] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:52:21,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:52:21,313 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:52:21,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:21 WrapperNode [2024-02-07 14:52:21,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:52:21,315 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:52:21,315 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:52:21,315 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:52:21,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:21" (1/1) ... [2024-02-07 14:52:21,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:21" (1/1) ... [2024-02-07 14:52:21,386 INFO L138 Inliner]: procedures = 177, calls = 126, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 239 [2024-02-07 14:52:21,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:52:21,387 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:52:21,387 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:52:21,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:52:21,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:21" (1/1) ... [2024-02-07 14:52:21,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:21" (1/1) ... [2024-02-07 14:52:21,419 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:21" (1/1) ... [2024-02-07 14:52:21,442 INFO L175 MemorySlicer]: Split 69 memory accesses to 6 slices as follows [2, 1, 1, 1, 63, 1]. 91 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 0, 0, 1, 0]. The 13 writes are split as follows [0, 1, 1, 1, 9, 1]. [2024-02-07 14:52:21,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:21" (1/1) ... [2024-02-07 14:52:21,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:21" (1/1) ... [2024-02-07 14:52:21,463 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:21" (1/1) ... [2024-02-07 14:52:21,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:21" (1/1) ... [2024-02-07 14:52:21,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:21" (1/1) ... [2024-02-07 14:52:21,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:21" (1/1) ... [2024-02-07 14:52:21,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:52:21,500 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:52:21,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:52:21,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:52:21,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:21" (1/1) ... [2024-02-07 14:52:21,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:52:21,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:52:21,525 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) [2024-02-07 14:52:21,550 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 [2024-02-07 14:52:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 14:52:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 14:52:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 14:52:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 14:52:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-07 14:52:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-07 14:52:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:52:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:52:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 14:52:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 14:52:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 14:52:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-07 14:52:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 14:52:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:52:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:52:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:52:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-07 14:52:21,571 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-07 14:52:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-07 14:52:21,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-07 14:52:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-07 14:52:21,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-07 14:52:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-02-07 14:52:21,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-02-07 14:52:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:52:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:52:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 14:52:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 14:52:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 14:52:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-07 14:52:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 14:52:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:52:21,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:52:21,576 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 14:52:21,768 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:52:21,770 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:52:22,189 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:52:22,190 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:52:22,688 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:52:22,689 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 14:52:22,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:52:22 BoogieIcfgContainer [2024-02-07 14:52:22,690 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:52:22,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:52:22,692 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:52:22,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:52:22,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:52:19" (1/4) ... [2024-02-07 14:52:22,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7316ff61 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:52:22, skipping insertion in model container [2024-02-07 14:52:22,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:52:20" (2/4) ... [2024-02-07 14:52:22,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7316ff61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:52:22, skipping insertion in model container [2024-02-07 14:52:22,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:52:21" (3/4) ... [2024-02-07 14:52:22,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7316ff61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:52:22, skipping insertion in model container [2024-02-07 14:52:22,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:52:22" (4/4) ... [2024-02-07 14:52:22,698 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_power.oepc.i [2024-02-07 14:52:22,712 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:52:22,712 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2024-02-07 14:52:22,712 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:52:22,872 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 14:52:22,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 95 transitions, 206 flow [2024-02-07 14:52:22,951 INFO L124 PetriNetUnfolderBase]: 1/91 cut-off events. [2024-02-07 14:52:22,951 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:52:22,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 91 events. 1/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 331 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2024-02-07 14:52:22,956 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 95 transitions, 206 flow [2024-02-07 14:52:22,960 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 91 transitions, 194 flow [2024-02-07 14:52:22,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:52:22,981 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;@122badc9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:52:22,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2024-02-07 14:52:22,983 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:52:22,984 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-07 14:52:22,984 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:52:22,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:52:22,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-07 14:52:22,985 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 78 more)] === [2024-02-07 14:52:22,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:52:22,988 INFO L85 PathProgramCache]: Analyzing trace with hash 38729, now seen corresponding path program 1 times [2024-02-07 14:52:22,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:52:22,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548243348] [2024-02-07 14:52:22,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:52:22,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:52:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:52:23,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:52:23,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:52:23,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548243348] [2024-02-07 14:52:23,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548243348] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:52:23,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:52:23,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:52:23,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979455560] [2024-02-07 14:52:23,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:52:23,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:52:23,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:52:23,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:52:23,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:52:23,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 95 [2024-02-07 14:52:23,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 91 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:52:23,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:52:23,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 95 [2024-02-07 14:52:23,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:52:51,606 INFO L124 PetriNetUnfolderBase]: 178896/250778 cut-off events. [2024-02-07 14:52:51,608 INFO L125 PetriNetUnfolderBase]: For 411/411 co-relation queries the response was YES. [2024-02-07 14:52:52,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483903 conditions, 250778 events. 178896/250778 cut-off events. For 411/411 co-relation queries the response was YES. Maximal size of possible extension queue 10614. Compared 2063968 event pairs, 178896 based on Foata normal form. 2970/150119 useless extension candidates. Maximal degree in co-relation 483889. Up to 231995 conditions per place. [2024-02-07 14:52:53,326 INFO L140 encePairwiseOnDemand]: 69/95 looper letters, 50 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2024-02-07 14:52:53,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 66 transitions, 246 flow [2024-02-07 14:52:53,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:52:53,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:52:53,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 133 transitions. [2024-02-07 14:52:53,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-02-07 14:52:53,337 INFO L175 Difference]: Start difference. First operand has 103 places, 91 transitions, 194 flow. Second operand 3 states and 133 transitions. [2024-02-07 14:52:53,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 66 transitions, 246 flow [2024-02-07 14:52:53,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 66 transitions, 242 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-07 14:52:53,357 INFO L231 Difference]: Finished difference. Result has 77 places, 66 transitions, 142 flow [2024-02-07 14:52:53,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=77, PETRI_TRANSITIONS=66} [2024-02-07 14:52:53,360 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -26 predicate places. [2024-02-07 14:52:53,361 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 66 transitions, 142 flow [2024-02-07 14:52:53,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:52:53,361 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:52:53,361 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-07 14:52:53,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:52:53,362 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 78 more)] === [2024-02-07 14:52:53,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:52:53,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1155078495, now seen corresponding path program 1 times [2024-02-07 14:52:53,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:52:53,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012308097] [2024-02-07 14:52:53,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:52:53,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:52:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:52:53,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:52:53,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:52:53,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012308097] [2024-02-07 14:52:53,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012308097] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:52:53,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:52:53,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:52:53,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118417191] [2024-02-07 14:52:53,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:52:53,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:52:53,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:52:53,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:52:53,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:52:53,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 95 [2024-02-07 14:52:53,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 66 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:52:53,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:52:53,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 95 [2024-02-07 14:52:53,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand