./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-20_10-08-36.files/mutex-meet-local/popl20-threaded-sum-3.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da67795f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c ./goblint.2024-08-20_10-08-36.files/mutex-meet-local/popl20-threaded-sum-3.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_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-tmp.dk.goblint-eval-da67795-m [2024-08-27 10:54:19,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-27 10:54:19,853 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-27 10:54:19,857 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-27 10:54:19,857 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-27 10:54:19,880 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-27 10:54:19,881 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-27 10:54:19,881 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-27 10:54:19,881 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-27 10:54:19,881 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-27 10:54:19,882 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-27 10:54:19,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-27 10:54:19,884 INFO L153 SettingsManager]: * Use SBE=true [2024-08-27 10:54:19,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-27 10:54:19,886 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-27 10:54:19,886 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-27 10:54:19,886 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-27 10:54:19,887 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-27 10:54:19,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-27 10:54:19,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-27 10:54:19,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-27 10:54:19,891 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-27 10:54:19,891 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-27 10:54:19,892 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-27 10:54:19,892 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-27 10:54:19,892 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-27 10:54:19,892 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-27 10:54:19,893 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-27 10:54:19,893 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-27 10:54:19,893 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-27 10:54:19,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 10:54:19,893 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-27 10:54:19,894 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-27 10:54:19,894 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-27 10:54:19,894 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-27 10:54:19,894 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-27 10:54:19,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-27 10:54:19,895 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-27 10:54:19,895 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-27 10:54:19,895 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-27 10:54:19,895 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-27 10:54:19,896 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-27 10:54:19,896 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-27 10:54:20,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-27 10:54:20,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-27 10:54:20,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-27 10:54:20,118 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-27 10:54:20,119 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-27 10:54:20,120 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-20_10-08-36.files/mutex-meet-local/popl20-threaded-sum-3.wvr.yml/witness.yml [2024-08-27 10:54:20,271 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-27 10:54:20,271 INFO L274 PluginConnector]: CDTParser initialized [2024-08-27 10:54:20,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2024-08-27 10:54:21,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-27 10:54:21,752 INFO L384 CDTParser]: Found 1 translation units. [2024-08-27 10:54:21,752 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2024-08-27 10:54:21,762 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a0d26b999/547ee51940ba401d9efc5574274d71a2/FLAG36cc6ad6b [2024-08-27 10:54:21,774 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a0d26b999/547ee51940ba401d9efc5574274d71a2 [2024-08-27 10:54:21,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-27 10:54:21,775 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-27 10:54:21,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-27 10:54:21,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-27 10:54:21,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-27 10:54:21,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 10:54:20" (1/2) ... [2024-08-27 10:54:21,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122387c1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 10:54:21, skipping insertion in model container [2024-08-27 10:54:21,782 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 10:54:20" (1/2) ... [2024-08-27 10:54:21,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3310f12b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 10:54:21, skipping insertion in model container [2024-08-27 10:54:21,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:54:21" (2/2) ... [2024-08-27 10:54:21,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122387c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:54:21, skipping insertion in model container [2024-08-27 10:54:21,784 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:54:21" (2/2) ... [2024-08-27 10:54:21,784 INFO L85 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-27 10:54:21,821 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-08-27 10:54:21,821 INFO L1541 ArrayList]: Location invariant before [L52-L52] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-08-27 10:54:21,822 INFO L1541 ArrayList]: Location invariant before [L46-L49] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-08-27 10:54:21,822 INFO L1541 ArrayList]: Location invariant before [L84-L84] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-08-27 10:54:21,822 INFO L1541 ArrayList]: Location invariant before [L90-L90] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-08-27 10:54:21,822 INFO L1541 ArrayList]: Location invariant before [L42-L42] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-08-27 10:54:21,822 INFO L1541 ArrayList]: Location invariant before [L65-L68] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-08-27 10:54:21,823 INFO L1541 ArrayList]: Location invariant before [L80-L80] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-08-27 10:54:21,823 INFO L1541 ArrayList]: Location invariant before [L71-L71] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-08-27 10:54:21,823 INFO L1541 ArrayList]: Location invariant before [L87-L87] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-08-27 10:54:21,823 INFO L1541 ArrayList]: Location invariant before [L61-L61] ((((((((((((((((-2LL + (long long )T) + (long long )U >= 0LL) && ((-2LL + (long long )S) + (long long )T >= 0LL)) && ((-2LL + (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) + (long long )c >= 0LL)) && ((-1LL + (long long )S) + (long long )c >= 0LL)) && ((-1LL + (long long )U) + (long long )c >= 0LL)) && ((4294967294LL - (long long )T) + (long long )U >= 0LL)) && ((4294967294LL - (long long )S) + (long long )T >= 0LL)) && ((4294967294LL - (long long )S) + (long long )U >= 0LL)) && ((-1LL + (long long )T) - (long long )c >= 0LL)) && ((-1LL + (long long )S) - (long long )c >= 0LL)) && ((-1LL + (long long )U) - (long long )c >= 0LL)) && ((4294967294LL + (long long )T) - (long long )U >= 0LL)) && ((4294967294LL + (long long )S) - (long long )T >= 0LL)) && ((4294967294LL + (long long )S) - (long long )U >= 0LL)) && (c == 0U) [2024-08-27 10:54:21,840 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-27 10:54:21,999 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c[2996,3009] [2024-08-27 10:54:22,005 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 10:54:22,015 INFO L202 MainTranslator]: Completed pre-run 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 [2024-08-27 10:54:22,132 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c[2996,3009] [2024-08-27 10:54:22,132 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 10:54:22,145 INFO L206 MainTranslator]: Completed translation [2024-08-27 10:54:22,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:54:22 WrapperNode [2024-08-27 10:54:22,153 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-27 10:54:22,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-27 10:54:22,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-27 10:54:22,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-27 10:54:22,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:54:22" (1/1) ... [2024-08-27 10:54:22,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:54:22" (1/1) ... [2024-08-27 10:54:22,192 INFO L138 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2024-08-27 10:54:22,192 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-27 10:54:22,193 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-27 10:54:22,193 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-27 10:54:22,193 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-27 10:54:22,200 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:54:22" (1/1) ... [2024-08-27 10:54:22,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:54:22" (1/1) ... [2024-08-27 10:54:22,203 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:54:22" (1/1) ... [2024-08-27 10:54:22,204 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:54:22" (1/1) ... [2024-08-27 10:54:22,216 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:54:22" (1/1) ... [2024-08-27 10:54:22,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:54:22" (1/1) ... [2024-08-27 10:54:22,223 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:54:22" (1/1) ... [2024-08-27 10:54:22,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:54:22" (1/1) ... [2024-08-27 10:54:22,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-27 10:54:22,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-27 10:54:22,241 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-27 10:54:22,241 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-27 10:54:22,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:54:22" (1/1) ... [2024-08-27 10:54:22,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 10:54:22,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:54:22,267 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-27 10:54:22,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-27 10:54:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-27 10:54:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-27 10:54:22,305 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-27 10:54:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-27 10:54:22,305 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-27 10:54:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-08-27 10:54:22,305 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-08-27 10:54:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-27 10:54:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-27 10:54:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-27 10:54:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-27 10:54:22,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-27 10:54:22,307 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-27 10:54:22,377 INFO L242 CfgBuilder]: Building ICFG [2024-08-27 10:54:22,378 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-27 10:54:22,808 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-27 10:54:22,808 INFO L291 CfgBuilder]: Performing block encoding [2024-08-27 10:54:22,991 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-27 10:54:22,991 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-08-27 10:54:22,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:54:22 BoogieIcfgContainer [2024-08-27 10:54:22,992 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-27 10:54:22,995 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-27 10:54:22,996 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-27 10:54:22,999 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-27 10:54:22,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 10:54:20" (1/4) ... [2024-08-27 10:54:23,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1cfb98 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.08 10:54:22, skipping insertion in model container [2024-08-27 10:54:23,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:54:21" (2/4) ... [2024-08-27 10:54:23,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1cfb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:54:23, skipping insertion in model container [2024-08-27 10:54:23,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:54:22" (3/4) ... [2024-08-27 10:54:23,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1cfb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:54:23, skipping insertion in model container [2024-08-27 10:54:23,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:54:22" (4/4) ... [2024-08-27 10:54:23,002 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-threaded-sum-3.wvr.c [2024-08-27 10:54:23,015 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-27 10:54:23,016 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-08-27 10:54:23,016 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-27 10:54:23,082 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-08-27 10:54:23,114 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 10:54:23,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-27 10:54:23,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:54:23,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-27 10:54:23,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-08-27 10:54:23,158 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-27 10:54:23,168 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork0 ======== [2024-08-27 10:54:23,175 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=PARTIAL_ORDER_FA, 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;@14176209, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 10:54:23,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-27 10:54:23,267 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 10:54:23,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:54:23,272 INFO L85 PathProgramCache]: Analyzing trace with hash 755730225, now seen corresponding path program 1 times [2024-08-27 10:54:23,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:54:23,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33847115] [2024-08-27 10:54:23,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:54:23,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:54:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:54:23,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 10:54:23,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:54:23,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33847115] [2024-08-27 10:54:23,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33847115] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 10:54:23,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 10:54:23,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-27 10:54:23,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355611236] [2024-08-27 10:54:23,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 10:54:23,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 10:54:23,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:54:23,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 10:54:23,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 10:54:23,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:54:23,893 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:54:23,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 10:54:23,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:54:24,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:54:24,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-08-27 10:54:24,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-08-27 10:54:24,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 3 remaining) [2024-08-27 10:54:24,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-27 10:54:24,561 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-27 10:54:24,562 INFO L308 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork0 was SAFE,SAFE,SAFE (1/4) [2024-08-27 10:54:24,570 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 10:54:24,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-27 10:54:24,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:54:24,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-27 10:54:24,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-08-27 10:54:24,578 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-27 10:54:24,579 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-27 10:54:24,580 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=PARTIAL_ORDER_FA, 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;@14176209, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 10:54:24,580 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-08-27 10:54:24,842 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-27 10:54:24,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:54:24,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1571470937, now seen corresponding path program 1 times [2024-08-27 10:54:24,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:54:24,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299189151] [2024-08-27 10:54:24,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:54:24,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:54:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:54:25,697 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-27 10:54:25,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:54:25,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299189151] [2024-08-27 10:54:25,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299189151] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 10:54:25,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137234779] [2024-08-27 10:54:25,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:54:25,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:54:25,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:54:25,702 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 10:54:25,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-27 10:54:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:54:25,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 12 conjunts are in the unsatisfiable core [2024-08-27 10:54:25,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 10:54:25,982 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-27 10:54:25,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 10:54:26,160 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-27 10:54:26,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137234779] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 10:54:26,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 10:54:26,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 15 [2024-08-27 10:54:26,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001709895] [2024-08-27 10:54:26,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 10:54:26,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-08-27 10:54:26,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:54:26,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-08-27 10:54:26,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-08-27 10:54:26,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:54:26,164 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:54:26,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 10:54:26,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:54:28,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-08-27 10:54:28,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-27 10:54:28,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:54:28,448 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-27 10:54:28,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:54:28,449 INFO L85 PathProgramCache]: Analyzing trace with hash 728412208, now seen corresponding path program 2 times [2024-08-27 10:54:28,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:54:28,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41239022] [2024-08-27 10:54:28,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:54:28,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:54:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:54:31,101 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 107 proven. 1 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2024-08-27 10:54:31,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:54:31,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41239022] [2024-08-27 10:54:31,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41239022] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 10:54:31,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054594532] [2024-08-27 10:54:31,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-27 10:54:31,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:54:31,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:54:31,106 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 10:54:31,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-27 10:54:31,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-27 10:54:31,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 10:54:31,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 15 conjunts are in the unsatisfiable core [2024-08-27 10:54:31,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 10:54:31,467 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 60 proven. 11 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2024-08-27 10:54:31,468 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 10:54:31,592 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 60 proven. 1 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2024-08-27 10:54:31,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054594532] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 10:54:31,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 10:54:31,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2024-08-27 10:54:31,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025540562] [2024-08-27 10:54:31,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 10:54:31,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-08-27 10:54:31,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:54:31,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-08-27 10:54:31,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-08-27 10:54:31,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:54:31,595 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:54:31,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 10:54:31,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-08-27 10:54:31,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:54:34,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-08-27 10:54:34,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-08-27 10:54:34,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-27 10:54:34,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:54:34,293 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-27 10:54:34,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:54:34,294 INFO L85 PathProgramCache]: Analyzing trace with hash -958370412, now seen corresponding path program 3 times [2024-08-27 10:54:34,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:54:34,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737595771] [2024-08-27 10:54:34,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:54:34,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:54:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:54:34,994 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 69 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-08-27 10:54:34,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:54:34,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737595771] [2024-08-27 10:54:34,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737595771] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 10:54:34,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582826364] [2024-08-27 10:54:34,995 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-27 10:54:34,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:54:34,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:54:35,000 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 10:54:35,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-27 10:54:35,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-08-27 10:54:35,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 10:54:35,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 16 conjunts are in the unsatisfiable core [2024-08-27 10:54:35,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 10:54:35,235 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 35 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-08-27 10:54:35,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 10:54:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-08-27 10:54:35,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582826364] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 10:54:35,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 10:54:35,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 7] total 17 [2024-08-27 10:54:35,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649375135] [2024-08-27 10:54:35,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 10:54:35,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-08-27 10:54:35,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:54:35,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-08-27 10:54:35,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-08-27 10:54:35,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:54:35,351 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:54:35,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.235294117647059) internal successors, (89), 17 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 10:54:35,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-08-27 10:54:35,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2024-08-27 10:54:35,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:54:38,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-08-27 10:54:38,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-08-27 10:54:38,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-08-27 10:54:38,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-08-27 10:54:38,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:54:38,575 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-27 10:54:38,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:54:38,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1810313329, now seen corresponding path program 4 times [2024-08-27 10:54:38,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:54:38,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771324551] [2024-08-27 10:54:38,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:54:38,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:54:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:55:44,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3356 backedges. 750 proven. 2359 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-08-27 10:55:44,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:55:44,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771324551] [2024-08-27 10:55:44,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771324551] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 10:55:44,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132498130] [2024-08-27 10:55:44,166 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-27 10:55:44,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:55:44,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:55:44,168 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 10:55:44,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-27 10:55:53,169 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-27 10:55:53,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 10:55:53,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 3650 conjuncts, 150 conjunts are in the unsatisfiable core [2024-08-27 10:55:53,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 11:04:50,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3356 backedges. 4 proven. 3235 refuted. 104 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-27 11:04:50,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 11:05:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3356 backedges. 1255 proven. 1799 refuted. 3 times theorem prover too weak. 299 trivial. 0 not checked. [2024-08-27 11:05:50,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132498130] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 11:05:50,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 11:05:50,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 68, 21] total 107 [2024-08-27 11:05:50,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410918158] [2024-08-27 11:05:50,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 11:05:50,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2024-08-27 11:05:50,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 11:05:50,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2024-08-27 11:05:50,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1042, Invalid=10068, Unknown=232, NotChecked=0, Total=11342 [2024-08-27 11:05:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 11:05:50,695 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 11:05:50,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 5.0) internal successors, (535), 107 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 11:05:50,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-08-27 11:05:50,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2024-08-27 11:05:50,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-08-27 11:05:50,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 11:05:53,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:05:55,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:05:57,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:05:59,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:06:01,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:06:03,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:06:05,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:06:07,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:06:09,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:06:11,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:06:13,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:06:15,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:06:17,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:06:21,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:06:40,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:06:42,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:06:54,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:06:56,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:06:58,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:01,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:03,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:05,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:17,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:19,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:22,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:24,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:26,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:28,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:30,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:32,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:38,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:40,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:42,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:44,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:46,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:48,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-08-27 11:07:50,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Killed by 15