./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/mult-dist.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/mult-dist.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 59af5db6 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/weaver/mult-dist.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/mult-dist.wvr.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-59af5db-m [2024-02-02 09:20:00,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:20:01,021 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:20:01,024 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:20:01,024 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:20:01,046 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:20:01,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:20:01,049 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:20:01,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:20:01,050 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:20:01,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:20:01,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:20:01,050 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:20:01,051 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:20:01,052 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:20:01,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:20:01,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:20:01,053 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:20:01,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:20:01,055 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:20:01,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:20:01,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:20:01,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:20:01,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:20:01,058 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:20:01,058 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:20:01,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:20:01,058 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:20:01,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:20:01,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:20:01,066 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:20:01,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:20:01,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:20:01,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:20:01,067 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:20:01,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:20:01,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:20:01,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:20:01,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:20:01,069 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:20:01,069 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:20:01,069 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:20:01,070 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:20:01,070 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:20:01,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:20:01,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:20:01,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:20:01,294 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:20:01,294 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:20:01,295 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/mult-dist.wvr.yml/witness.yml [2024-02-02 09:20:01,379 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:20:01,380 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:20:01,380 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/mult-dist.wvr.c [2024-02-02 09:20:02,393 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:20:02,550 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:20:02,551 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c [2024-02-02 09:20:02,556 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e86480b1a/210e96aafac9493d8514c5c0fd90ccb2/FLAGfb259fbd2 [2024-02-02 09:20:02,572 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e86480b1a/210e96aafac9493d8514c5c0fd90ccb2 [2024-02-02 09:20:02,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:20:02,575 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:20:02,577 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:20:02,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:20:02,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:20:02,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:20:01" (1/2) ... [2024-02-02 09:20:02,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60dec972 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:02, skipping insertion in model container [2024-02-02 09:20:02,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:20:01" (1/2) ... [2024-02-02 09:20:02,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@48b80447 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:02, skipping insertion in model container [2024-02-02 09:20:02,583 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:20:02" (2/2) ... [2024-02-02 09:20:02,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60dec972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:02, skipping insertion in model container [2024-02-02 09:20:02,584 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:20:02" (2/2) ... [2024-02-02 09:20:02,585 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:20:02,609 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:20:02,610 INFO L101 nessWitnessExtractor]: Loop invariant at [L49-L51] ((unsigned long )_argptr == 0UL) && (((((((((((((0U == i && i == 0U) || 12U <= i) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) [2024-02-02 09:20:02,610 INFO L101 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-02-02 09:20:02,610 INFO L101 nessWitnessExtractor]: Location invariant before [L50-L50] ((unsigned long )_argptr == 0UL) && (((((((((((((0U == i && i == 0U) || (12U <= i && i <= 4294967294U)) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) [2024-02-02 09:20:02,610 INFO L101 nessWitnessExtractor]: Location invariant after [L41-L43] (((x_1 == 0U) && (x_2 == 0U)) && (x_3 == 0U)) && (c == 0U) [2024-02-02 09:20:02,611 INFO L101 nessWitnessExtractor]: Loop invariant at [L41-L43] ((unsigned long )_argptr == 0UL) && ((((((((((((12U <= i || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) [2024-02-02 09:20:02,611 INFO L101 nessWitnessExtractor]: Loop invariant at [L57-L59] ((unsigned long )_argptr == 0UL) && ((((((((((((i == 3U || i == 2U) || i == 1U) || (0U == i && i == 0U)) || 12U <= i) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) [2024-02-02 09:20:02,611 INFO L101 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-02-02 09:20:02,612 INFO L101 nessWitnessExtractor]: Location invariant before [L58-L58] ((unsigned long )_argptr == 0UL) && ((((((((((((i == 2U || i == 1U) || (0U == i && i == 0U)) || (12U <= i && i <= 4294967294U)) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) [2024-02-02 09:20:02,612 INFO L101 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-02-02 09:20:02,612 INFO L101 nessWitnessExtractor]: Location invariant before [L69-L69] ((((x_1 == 0U) && (x_2 == 0U)) && (x_3 == 0U)) && (b == 0U)) && (c == 0U) [2024-02-02 09:20:02,612 INFO L101 nessWitnessExtractor]: Location invariant before [L72-L72] ((x_1 == 0U) && (x_2 == 0U)) && (x_3 == 0U) [2024-02-02 09:20:02,612 INFO L101 nessWitnessExtractor]: Location invariant before [L68-L68] ((((((((((0LL - (long long )a) + (long long )b >= 0LL) && ((long long )a + (long long )b >= 0LL)) && ((0LL - (long long )a) - (long long )b >= 0LL)) && ((long long )a - (long long )b >= 0LL)) && (x_1 == 0U)) && (x_2 == 0U)) && (x_3 == 0U)) && (a == 0U)) && (b == 0U)) && (c == 0U) [2024-02-02 09:20:02,612 INFO L101 nessWitnessExtractor]: Location invariant before [L70-L70] (((x_1 == 0U) && (x_2 == 0U)) && (x_3 == 0U)) && (c == 0U) [2024-02-02 09:20:02,612 INFO L101 nessWitnessExtractor]: Location invariant before [L42-L42] ((unsigned long )_argptr == 0UL) && (((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) [2024-02-02 09:20:02,629 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:20:02,793 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c[2155,2168] [2024-02-02 09:20:02,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:20:02,813 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-02 09:20:02,906 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c[2155,2168] [2024-02-02 09:20:02,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:20:02,919 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:20:02,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:02 WrapperNode [2024-02-02 09:20:02,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:20:02,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:20:02,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:20:02,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:20:02,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:02" (1/1) ... [2024-02-02 09:20:02,940 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:02" (1/1) ... [2024-02-02 09:20:02,961 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2024-02-02 09:20:02,961 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:20:02,962 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:20:02,962 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:20:02,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:20:02,971 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:02" (1/1) ... [2024-02-02 09:20:02,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:02" (1/1) ... [2024-02-02 09:20:02,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:02" (1/1) ... [2024-02-02 09:20:03,003 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-02-02 09:20:03,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:02" (1/1) ... [2024-02-02 09:20:03,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:02" (1/1) ... [2024-02-02 09:20:03,017 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:02" (1/1) ... [2024-02-02 09:20:03,019 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:02" (1/1) ... [2024-02-02 09:20:03,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:02" (1/1) ... [2024-02-02 09:20:03,021 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:02" (1/1) ... [2024-02-02 09:20:03,023 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:20:03,024 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:20:03,024 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:20:03,024 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:20:03,028 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:02" (1/1) ... [2024-02-02 09:20:03,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:20:03,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:20:03,071 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) [2024-02-02 09:20:03,088 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 [2024-02-02 09:20:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:20:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-02 09:20:03,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-02 09:20:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-02 09:20:03,104 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-02 09:20:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-02 09:20:03,104 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-02 09:20:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:20:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:20:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:20:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:20:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:20:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:20:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:20:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:20:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:20:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:20:03,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:20:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:20:03,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:20:03,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:20:03,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 09:20:03,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:20:03,107 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:20:03,192 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:20:03,194 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:20:03,469 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:20:03,469 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:20:03,572 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:20:03,572 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-02-02 09:20:03,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:20:03 BoogieIcfgContainer [2024-02-02 09:20:03,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:20:03,600 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:20:03,600 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:20:03,603 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:20:03,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:20:01" (1/4) ... [2024-02-02 09:20:03,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74133e29 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:20:03, skipping insertion in model container [2024-02-02 09:20:03,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:20:02" (2/4) ... [2024-02-02 09:20:03,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74133e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:20:03, skipping insertion in model container [2024-02-02 09:20:03,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:02" (3/4) ... [2024-02-02 09:20:03,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74133e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:20:03, skipping insertion in model container [2024-02-02 09:20:03,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:20:03" (4/4) ... [2024-02-02 09:20:03,605 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-dist.wvr.c [2024-02-02 09:20:03,618 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:20:03,619 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-02-02 09:20:03,619 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:20:03,692 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-02-02 09:20:03,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 61 transitions, 143 flow [2024-02-02 09:20:03,748 INFO L124 PetriNetUnfolderBase]: 3/58 cut-off events. [2024-02-02 09:20:03,748 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-02 09:20:03,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 58 events. 3/58 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 144 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2024-02-02 09:20:03,752 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 61 transitions, 143 flow [2024-02-02 09:20:03,756 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 57 transitions, 132 flow [2024-02-02 09:20:03,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:20:03,779 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;@4970a265, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:20:03,780 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-02-02 09:20:03,783 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:20:03,783 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:20:03,783 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:20:03,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:03,784 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:20:03,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-02-02 09:20:03,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:03,790 INFO L85 PathProgramCache]: Analyzing trace with hash 10028, now seen corresponding path program 1 times [2024-02-02 09:20:03,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:03,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580936466] [2024-02-02 09:20:03,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:03,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:04,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:20:04,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:04,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580936466] [2024-02-02 09:20:04,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580936466] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:04,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:04,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:20:04,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153230554] [2024-02-02 09:20:04,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:04,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:20:04,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:04,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:20:04,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:20:04,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 61 [2024-02-02 09:20:04,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 57 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:04,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:04,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 61 [2024-02-02 09:20:04,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:04,690 INFO L124 PetriNetUnfolderBase]: 1814/3038 cut-off events. [2024-02-02 09:20:04,691 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-02-02 09:20:04,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5633 conditions, 3038 events. 1814/3038 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 18398 event pairs, 1305 based on Foata normal form. 0/2244 useless extension candidates. Maximal degree in co-relation 5060. Up to 2447 conditions per place. [2024-02-02 09:20:04,716 INFO L140 encePairwiseOnDemand]: 58/61 looper letters, 34 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2024-02-02 09:20:04,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 56 transitions, 202 flow [2024-02-02 09:20:04,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:20:04,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:20:04,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-02-02 09:20:04,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5792349726775956 [2024-02-02 09:20:04,729 INFO L175 Difference]: Start difference. First operand has 64 places, 57 transitions, 132 flow. Second operand 3 states and 106 transitions. [2024-02-02 09:20:04,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 56 transitions, 202 flow [2024-02-02 09:20:04,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 56 transitions, 190 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-02-02 09:20:04,741 INFO L231 Difference]: Finished difference. Result has 59 places, 56 transitions, 122 flow [2024-02-02 09:20:04,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=59, PETRI_TRANSITIONS=56} [2024-02-02 09:20:04,746 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -5 predicate places. [2024-02-02 09:20:04,746 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 56 transitions, 122 flow [2024-02-02 09:20:04,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:04,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:04,746 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-02 09:20:04,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:20:04,746 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-02-02 09:20:04,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:04,747 INFO L85 PathProgramCache]: Analyzing trace with hash 311172, now seen corresponding path program 1 times [2024-02-02 09:20:04,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:04,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462381467] [2024-02-02 09:20:04,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:04,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:04,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:20:04,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:04,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462381467] [2024-02-02 09:20:04,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462381467] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:04,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:04,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:20:04,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330785272] [2024-02-02 09:20:04,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:04,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:20:04,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:04,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:20:04,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:20:04,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 61 [2024-02-02 09:20:04,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 56 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:04,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:04,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 61 [2024-02-02 09:20:04,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:05,051 INFO L124 PetriNetUnfolderBase]: 1154/2115 cut-off events. [2024-02-02 09:20:05,052 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-02-02 09:20:05,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3785 conditions, 2115 events. 1154/2115 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 13705 event pairs, 945 based on Foata normal form. 0/1725 useless extension candidates. Maximal degree in co-relation 3776. Up to 1621 conditions per place. [2024-02-02 09:20:05,071 INFO L140 encePairwiseOnDemand]: 58/61 looper letters, 31 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2024-02-02 09:20:05,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 55 transitions, 186 flow [2024-02-02 09:20:05,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:20:05,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:20:05,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2024-02-02 09:20:05,074 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6120218579234973 [2024-02-02 09:20:05,075 INFO L175 Difference]: Start difference. First operand has 59 places, 56 transitions, 122 flow. Second operand 3 states and 112 transitions. [2024-02-02 09:20:05,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 55 transitions, 186 flow [2024-02-02 09:20:05,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 55 transitions, 182 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:20:05,076 INFO L231 Difference]: Finished difference. Result has 58 places, 55 transitions, 120 flow [2024-02-02 09:20:05,076 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=58, PETRI_TRANSITIONS=55} [2024-02-02 09:20:05,077 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -6 predicate places. [2024-02-02 09:20:05,077 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 55 transitions, 120 flow [2024-02-02 09:20:05,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:05,078 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:05,078 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-02 09:20:05,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:20:05,078 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-02-02 09:20:05,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:05,078 INFO L85 PathProgramCache]: Analyzing trace with hash 9646679, now seen corresponding path program 1 times [2024-02-02 09:20:05,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:05,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967612961] [2024-02-02 09:20:05,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:05,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:05,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:20:05,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:05,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967612961] [2024-02-02 09:20:05,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967612961] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:05,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:05,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:20:05,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352441083] [2024-02-02 09:20:05,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:05,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:20:05,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:05,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:20:05,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:20:05,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 61 [2024-02-02 09:20:05,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 55 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:05,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:05,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 61 [2024-02-02 09:20:05,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:05,359 INFO L124 PetriNetUnfolderBase]: 948/1785 cut-off events. [2024-02-02 09:20:05,359 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:20:05,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3236 conditions, 1785 events. 948/1785 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 11823 event pairs, 564 based on Foata normal form. 1/1582 useless extension candidates. Maximal degree in co-relation 3225. Up to 878 conditions per place. [2024-02-02 09:20:05,373 INFO L140 encePairwiseOnDemand]: 56/61 looper letters, 40 selfloop transitions, 3 changer transitions 1/65 dead transitions. [2024-02-02 09:20:05,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 65 transitions, 230 flow [2024-02-02 09:20:05,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:20:05,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:20:05,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 127 transitions. [2024-02-02 09:20:05,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6939890710382514 [2024-02-02 09:20:05,378 INFO L175 Difference]: Start difference. First operand has 58 places, 55 transitions, 120 flow. Second operand 3 states and 127 transitions. [2024-02-02 09:20:05,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 65 transitions, 230 flow [2024-02-02 09:20:05,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 65 transitions, 226 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:20:05,381 INFO L231 Difference]: Finished difference. Result has 55 places, 51 transitions, 113 flow [2024-02-02 09:20:05,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=55, PETRI_TRANSITIONS=51} [2024-02-02 09:20:05,382 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -9 predicate places. [2024-02-02 09:20:05,382 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 51 transitions, 113 flow [2024-02-02 09:20:05,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:05,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:05,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:20:05,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:20:05,383 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-02-02 09:20:05,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:05,385 INFO L85 PathProgramCache]: Analyzing trace with hash 299047394, now seen corresponding path program 1 times [2024-02-02 09:20:05,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:05,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675843999] [2024-02-02 09:20:05,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:05,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:05,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:20:05,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:05,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675843999] [2024-02-02 09:20:05,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675843999] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:05,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:05,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:20:05,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543918097] [2024-02-02 09:20:05,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:05,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:20:05,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:05,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:20:05,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:20:05,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 61 [2024-02-02 09:20:05,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 51 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:05,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:05,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 61 [2024-02-02 09:20:05,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:05,765 INFO L124 PetriNetUnfolderBase]: 1769/3465 cut-off events. [2024-02-02 09:20:05,766 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-02-02 09:20:05,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6078 conditions, 3465 events. 1769/3465 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 24609 event pairs, 473 based on Foata normal form. 0/3188 useless extension candidates. Maximal degree in co-relation 3279. Up to 1559 conditions per place. [2024-02-02 09:20:05,782 INFO L140 encePairwiseOnDemand]: 55/61 looper letters, 45 selfloop transitions, 5 changer transitions 0/72 dead transitions. [2024-02-02 09:20:05,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 72 transitions, 261 flow [2024-02-02 09:20:05,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:20:05,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:20:05,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 138 transitions. [2024-02-02 09:20:05,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7540983606557377 [2024-02-02 09:20:05,784 INFO L175 Difference]: Start difference. First operand has 55 places, 51 transitions, 113 flow. Second operand 3 states and 138 transitions. [2024-02-02 09:20:05,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 72 transitions, 261 flow [2024-02-02 09:20:05,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 72 transitions, 253 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:20:05,790 INFO L231 Difference]: Finished difference. Result has 55 places, 54 transitions, 141 flow [2024-02-02 09:20:05,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=55, PETRI_TRANSITIONS=54} [2024-02-02 09:20:05,791 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -9 predicate places. [2024-02-02 09:20:05,791 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 54 transitions, 141 flow [2024-02-02 09:20:05,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:05,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:05,792 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:20:05,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:20:05,793 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-02-02 09:20:05,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:05,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1159127749, now seen corresponding path program 1 times [2024-02-02 09:20:05,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:05,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903001321] [2024-02-02 09:20:05,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:05,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:05,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:20:05,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:05,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903001321] [2024-02-02 09:20:05,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903001321] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:05,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:05,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:20:05,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093490898] [2024-02-02 09:20:05,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:05,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:20:05,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:05,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:20:05,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:20:05,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 61 [2024-02-02 09:20:05,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 54 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:05,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:05,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 61 [2024-02-02 09:20:05,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:06,203 INFO L124 PetriNetUnfolderBase]: 1608/2877 cut-off events. [2024-02-02 09:20:06,204 INFO L125 PetriNetUnfolderBase]: For 1009/1019 co-relation queries the response was YES. [2024-02-02 09:20:06,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6034 conditions, 2877 events. 1608/2877 cut-off events. For 1009/1019 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 18313 event pairs, 496 based on Foata normal form. 152/2889 useless extension candidates. Maximal degree in co-relation 1480. Up to 1990 conditions per place. [2024-02-02 09:20:06,220 INFO L140 encePairwiseOnDemand]: 56/61 looper letters, 43 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2024-02-02 09:20:06,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 66 transitions, 269 flow [2024-02-02 09:20:06,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:20:06,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:20:06,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 155 transitions. [2024-02-02 09:20:06,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6352459016393442 [2024-02-02 09:20:06,222 INFO L175 Difference]: Start difference. First operand has 55 places, 54 transitions, 141 flow. Second operand 4 states and 155 transitions. [2024-02-02 09:20:06,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 66 transitions, 269 flow [2024-02-02 09:20:06,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 66 transitions, 255 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:20:06,225 INFO L231 Difference]: Finished difference. Result has 53 places, 51 transitions, 129 flow [2024-02-02 09:20:06,225 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=129, PETRI_PLACES=53, PETRI_TRANSITIONS=51} [2024-02-02 09:20:06,225 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -11 predicate places. [2024-02-02 09:20:06,225 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 129 flow [2024-02-02 09:20:06,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:06,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:06,226 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:20:06,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:20:06,226 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-02-02 09:20:06,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:06,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1523732253, now seen corresponding path program 1 times [2024-02-02 09:20:06,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:06,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208830081] [2024-02-02 09:20:06,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:06,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:20:06,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:06,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208830081] [2024-02-02 09:20:06,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208830081] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:06,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:06,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:20:06,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592604612] [2024-02-02 09:20:06,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:06,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:20:06,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:06,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:20:06,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:20:06,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 61 [2024-02-02 09:20:06,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:06,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:06,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 61 [2024-02-02 09:20:06,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:06,650 INFO L124 PetriNetUnfolderBase]: 1470/2757 cut-off events. [2024-02-02 09:20:06,650 INFO L125 PetriNetUnfolderBase]: For 581/583 co-relation queries the response was YES. [2024-02-02 09:20:06,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5508 conditions, 2757 events. 1470/2757 cut-off events. For 581/583 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 18338 event pairs, 222 based on Foata normal form. 210/2861 useless extension candidates. Maximal degree in co-relation 4569. Up to 1798 conditions per place. [2024-02-02 09:20:06,698 INFO L140 encePairwiseOnDemand]: 56/61 looper letters, 48 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2024-02-02 09:20:06,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 68 transitions, 281 flow [2024-02-02 09:20:06,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:20:06,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:20:06,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions. [2024-02-02 09:20:06,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6516393442622951 [2024-02-02 09:20:06,700 INFO L175 Difference]: Start difference. First operand has 53 places, 51 transitions, 129 flow. Second operand 4 states and 159 transitions. [2024-02-02 09:20:06,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 68 transitions, 281 flow [2024-02-02 09:20:06,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 68 transitions, 276 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:20:06,701 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 124 flow [2024-02-02 09:20:06,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=124, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2024-02-02 09:20:06,704 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -13 predicate places. [2024-02-02 09:20:06,704 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 124 flow [2024-02-02 09:20:06,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:06,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:06,704 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:20:06,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-02 09:20:06,704 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-02-02 09:20:06,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:06,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1525248392, now seen corresponding path program 1 times [2024-02-02 09:20:06,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:06,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044331521] [2024-02-02 09:20:06,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:06,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:06,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:20:06,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:06,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044331521] [2024-02-02 09:20:06,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044331521] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:06,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:06,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:20:06,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653979285] [2024-02-02 09:20:06,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:06,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:20:06,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:06,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:20:06,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:20:06,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 61 [2024-02-02 09:20:06,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:06,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:06,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 61 [2024-02-02 09:20:06,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:07,182 INFO L124 PetriNetUnfolderBase]: 2066/3447 cut-off events. [2024-02-02 09:20:07,183 INFO L125 PetriNetUnfolderBase]: For 664/668 co-relation queries the response was YES. [2024-02-02 09:20:07,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7355 conditions, 3447 events. 2066/3447 cut-off events. For 664/668 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 21317 event pairs, 373 based on Foata normal form. 106/3322 useless extension candidates. Maximal degree in co-relation 6438. Up to 1956 conditions per place. [2024-02-02 09:20:07,199 INFO L140 encePairwiseOnDemand]: 57/61 looper letters, 59 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2024-02-02 09:20:07,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 77 transitions, 336 flow [2024-02-02 09:20:07,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:20:07,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:20:07,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 153 transitions. [2024-02-02 09:20:07,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6270491803278688 [2024-02-02 09:20:07,201 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 124 flow. Second operand 4 states and 153 transitions. [2024-02-02 09:20:07,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 77 transitions, 336 flow [2024-02-02 09:20:07,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 77 transitions, 327 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:20:07,203 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 127 flow [2024-02-02 09:20:07,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2024-02-02 09:20:07,204 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -13 predicate places. [2024-02-02 09:20:07,204 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 127 flow [2024-02-02 09:20:07,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:20:07,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:07,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:20:07,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-02 09:20:07,205 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-02-02 09:20:07,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:07,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1525248425, now seen corresponding path program 1 times [2024-02-02 09:20:07,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:07,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759852661] [2024-02-02 09:20:07,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:07,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:20:07,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-02 09:20:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:20:07,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-02 09:20:07,252 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-02 09:20:07,253 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 34 remaining) [2024-02-02 09:20:07,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 34 remaining) [2024-02-02 09:20:07,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 34 remaining) [2024-02-02 09:20:07,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 34 remaining) [2024-02-02 09:20:07,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 34 remaining) [2024-02-02 09:20:07,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 34 remaining) [2024-02-02 09:20:07,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 34 remaining) [2024-02-02 09:20:07,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 34 remaining) [2024-02-02 09:20:07,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 34 remaining) [2024-02-02 09:20:07,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 34 remaining) [2024-02-02 09:20:07,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 34 remaining) [2024-02-02 09:20:07,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 34 remaining) [2024-02-02 09:20:07,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 34 remaining) [2024-02-02 09:20:07,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 34 remaining) [2024-02-02 09:20:07,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 34 remaining) [2024-02-02 09:20:07,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 34 remaining) [2024-02-02 09:20:07,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 34 remaining) [2024-02-02 09:20:07,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 34 remaining) [2024-02-02 09:20:07,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (15 of 34 remaining) [2024-02-02 09:20:07,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 34 remaining) [2024-02-02 09:20:07,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 34 remaining) [2024-02-02 09:20:07,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 34 remaining) [2024-02-02 09:20:07,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 34 remaining) [2024-02-02 09:20:07,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 34 remaining) [2024-02-02 09:20:07,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 34 remaining) [2024-02-02 09:20:07,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 34 remaining) [2024-02-02 09:20:07,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 34 remaining) [2024-02-02 09:20:07,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 34 remaining) [2024-02-02 09:20:07,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 34 remaining) [2024-02-02 09:20:07,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 34 remaining) [2024-02-02 09:20:07,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 34 remaining) [2024-02-02 09:20:07,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 34 remaining) [2024-02-02 09:20:07,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 34 remaining) [2024-02-02 09:20:07,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 34 remaining) [2024-02-02 09:20:07,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-02 09:20:07,262 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:20:07,267 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 09:20:07,267 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 09:20:07,284 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-02-02 09:20:07,295 INFO L503 ceAbstractionStarter]: Automizer considered 17 witness invariants [2024-02-02 09:20:07,295 INFO L504 ceAbstractionStarter]: WitnessConsidered=17 [2024-02-02 09:20:07,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:20:07 BasicIcfg [2024-02-02 09:20:07,297 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 09:20:07,297 INFO L158 Benchmark]: Toolchain (without parser) took 4722.78ms. Allocated memory was 138.4MB in the beginning and 383.8MB in the end (delta: 245.4MB). Free memory was 79.7MB in the beginning and 234.8MB in the end (delta: -155.1MB). Peak memory consumption was 91.9MB. Max. memory is 16.1GB. [2024-02-02 09:20:07,297 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:20:07,298 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:20:07,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.44ms. Allocated memory is still 138.4MB. Free memory was 79.7MB in the beginning and 105.4MB in the end (delta: -25.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-02-02 09:20:07,298 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.07ms. Allocated memory is still 138.4MB. Free memory was 105.4MB in the beginning and 103.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:20:07,298 INFO L158 Benchmark]: Boogie Preprocessor took 60.80ms. Allocated memory is still 138.4MB. Free memory was 103.3MB in the beginning and 101.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:20:07,300 INFO L158 Benchmark]: RCFGBuilder took 549.73ms. Allocated memory is still 138.4MB. Free memory was 100.4MB in the beginning and 53.7MB in the end (delta: 46.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-02-02 09:20:07,300 INFO L158 Benchmark]: TraceAbstraction took 3696.68ms. Allocated memory was 138.4MB in the beginning and 383.8MB in the end (delta: 245.4MB). Free memory was 107.5MB in the beginning and 234.8MB in the end (delta: -127.3MB). Peak memory consumption was 117.0MB. Max. memory is 16.1GB. [2024-02-02 09:20:07,301 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.44ms. Allocated memory is still 138.4MB. Free memory was 79.7MB in the beginning and 105.4MB in the end (delta: -25.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.07ms. Allocated memory is still 138.4MB. Free memory was 105.4MB in the beginning and 103.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.80ms. Allocated memory is still 138.4MB. Free memory was 103.3MB in the beginning and 101.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 549.73ms. Allocated memory is still 138.4MB. Free memory was 100.4MB in the beginning and 53.7MB in the end (delta: 46.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3696.68ms. Allocated memory was 138.4MB in the beginning and 383.8MB in the end (delta: 245.4MB). Free memory was 107.5MB in the beginning and 234.8MB in the end (delta: -127.3MB). Peak memory consumption was 117.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 41]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] 0 unsigned int x_1, x_2, x_3, a, b, c; [L65] 0 pthread_t t1, t2, t3; VAL [a=0, b=0, c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[a]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[a]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[x_2],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[x_3],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[a],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[b],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[c],IntegerLiteral[0U]]]]] [L68] 0 a = __VERIFIER_nondet_uint() [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[x_2],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[x_3],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[b],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[c],IntegerLiteral[0U]]]]] [L69] 0 b = __VERIFIER_nondet_uint() [L70] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[x_2],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[x_3],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[c],IntegerLiteral[0U]]]]] [L70] 0 c = __VERIFIER_nondet_uint() [L72] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[x_2],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[x_3],IntegerLiteral[0U]]]]] [L72] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L41] 1 unsigned int i=0; VAL [_argptr={0:0}, _argptr={0:0}, i=0, x_1=0, x_2=0, x_3=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]],BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[COMPLEQ,IntegerLiteral[12U],IdentifierExpression[i]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[11U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[10U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[9U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[8U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[7U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[6U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[5U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[4U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[3U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[2U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[1U]]],BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IntegerLiteral[0U],IdentifierExpression[i]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[0U]]]]]]] VAL [_argptr={0:0}, _argptr={0:0}, i=0, x_1=0, x_2=0, x_3=0] [L41] COND FALSE 1 !(i