./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/protection/chl-chromosome-opt-symm.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 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/chl-chromosome-opt-symm.wvr.c ./goblint.2024-05-21_14-57-05.files/protection/chl-chromosome-opt-symm.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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-cde23df-m [2024-06-14 11:43:12,380 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 11:43:12,528 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 11:43:12,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 11:43:12,535 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 11:43:12,562 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 11:43:12,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 11:43:12,563 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 11:43:12,563 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 11:43:12,566 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 11:43:12,566 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 11:43:12,566 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 11:43:12,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 11:43:12,568 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 11:43:12,568 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 11:43:12,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 11:43:12,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 11:43:12,569 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 11:43:12,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 11:43:12,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 11:43:12,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 11:43:12,571 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 11:43:12,571 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 11:43:12,571 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 11:43:12,571 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 11:43:12,572 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 11:43:12,572 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 11:43:12,572 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 11:43:12,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 11:43:12,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 11:43:12,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 11:43:12,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 11:43:12,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 11:43:12,574 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 11:43:12,574 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 11:43:12,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 11:43:12,574 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 11:43:12,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 11:43:12,575 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 11:43:12,575 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 11:43:12,575 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 11:43:12,575 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 11:43:12,575 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 11:43:12,576 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 11:43:12,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 11:43:12,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 11:43:12,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 11:43:12,830 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 11:43:12,831 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 11:43:12,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2024-06-14 11:43:13,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 11:43:13,934 INFO L384 CDTParser]: Found 0 translation units. [2024-06-14 11:43:13,937 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47a712ab/b5826dfb8b7549998b768398aad24923/FLAGd1964e2a6 [2024-06-14 11:43:13,950 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47a712ab/b5826dfb8b7549998b768398aad24923 [2024-06-14 11:43:13,954 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 11:43:13,954 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 11:43:13,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/chl-chromosome-opt-symm.wvr.yml/witness.yml [2024-06-14 11:43:14,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 11:43:14,040 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 11:43:14,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 11:43:14,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 11:43:14,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 11:43:14,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 11:43:13" (1/2) ... [2024-06-14 11:43:14,047 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ab8b6c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:14, skipping insertion in model container [2024-06-14 11:43:14,047 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 11:43:13" (1/2) ... [2024-06-14 11:43:14,048 INFO L99 ieTranslatorObserver]: Witness extractor is disabled for multiple files [2024-06-14 11:43:14,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2ffc87c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:14, skipping insertion in model container [2024-06-14 11:43:14,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:43:14" (2/2) ... [2024-06-14 11:43:14,050 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ab8b6c7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 11:43:14, skipping insertion in model container [2024-06-14 11:43:14,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:43:14" (2/2) ... [2024-06-14 11:43:14,054 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.util.NoSuchElementException: No value present at java.base/java.util.Optional.get(Optional.java:148) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:151) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:118) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-06-14 11:43:14,065 INFO L158 Benchmark]: Toolchain (without parser) took 24.06ms. Allocated memory is still 155.2MB. Free memory was 127.6MB in the beginning and 126.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 11:43:14,065 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 11:43:14,066 INFO L158 Benchmark]: Witness Parser took 1.15ms. Allocated memory is still 155.2MB. Free memory was 126.6MB in the beginning and 126.6MB in the end (delta: 23.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 11:43:14,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 22.60ms. Allocated memory is still 155.2MB. Free memory was 126.9MB in the beginning and 126.2MB in the end (delta: 672.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 11:43:14,068 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 1.15ms. Allocated memory is still 155.2MB. Free memory was 126.6MB in the beginning and 126.6MB in the end (delta: 23.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 22.60ms. Allocated memory is still 155.2MB. Free memory was 126.9MB in the beginning and 126.2MB in the end (delta: 672.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NoSuchElementException: No value present de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NoSuchElementException: No value present: java.base/java.util.Optional.get(Optional.java:148) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/chl-chromosome-opt-symm.wvr.c ./goblint.2024-05-21_14-57-05.files/protection/chl-chromosome-opt-symm.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-cde23df-m [2024-06-14 11:43:15,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 11:43:15,891 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-06-14 11:43:15,895 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 11:43:15,896 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 11:43:15,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 11:43:15,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 11:43:15,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 11:43:15,922 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 11:43:15,925 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 11:43:15,925 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 11:43:15,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 11:43:15,926 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 11:43:15,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 11:43:15,927 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 11:43:15,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 11:43:15,927 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 11:43:15,928 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 11:43:15,928 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 11:43:15,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 11:43:15,928 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 11:43:15,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 11:43:15,929 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 11:43:15,929 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-06-14 11:43:15,929 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-06-14 11:43:15,929 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 11:43:15,929 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-06-14 11:43:15,929 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 11:43:15,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 11:43:15,930 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 11:43:15,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 11:43:15,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 11:43:15,931 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 11:43:15,931 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 11:43:15,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 11:43:15,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 11:43:15,932 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 11:43:15,932 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 11:43:15,933 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-06-14 11:43:15,933 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-06-14 11:43:15,933 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 11:43:15,933 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 11:43:15,933 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 11:43:15,933 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 11:43:15,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 11:43:15,934 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-06-14 11:43:15,934 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 11:43:16,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 11:43:16,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 11:43:16,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 11:43:16,188 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 11:43:16,188 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 11:43:16,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/chl-chromosome-opt-symm.wvr.yml/witness.yml [2024-06-14 11:43:16,247 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 11:43:16,247 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 11:43:16,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2024-06-14 11:43:17,210 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 11:43:17,395 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 11:43:17,395 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2024-06-14 11:43:17,401 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2adbb5daf/da8d204e8557446ebb05dd14c9349df7/FLAG866419c70 [2024-06-14 11:43:17,416 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2adbb5daf/da8d204e8557446ebb05dd14c9349df7 [2024-06-14 11:43:17,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 11:43:17,418 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 11:43:17,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 11:43:17,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 11:43:17,424 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 11:43:17,425 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:43:16" (1/2) ... [2024-06-14 11:43:17,426 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3edd4308 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 11:43:17, skipping insertion in model container [2024-06-14 11:43:17,426 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:43:16" (1/2) ... [2024-06-14 11:43:17,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2cb7d18f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 11:43:17, skipping insertion in model container [2024-06-14 11:43:17,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 11:43:17" (2/2) ... [2024-06-14 11:43:17,430 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3edd4308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:17, skipping insertion in model container [2024-06-14 11:43:17,430 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 11:43:17" (2/2) ... [2024-06-14 11:43:17,430 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 11:43:17,453 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 11:43:17,454 INFO L97 edCorrectnessWitness]: Location invariant before [L89-L89] (! multithreaded || ((((-128 <= res1 && -1 <= res1) && res1 <= 1) && res1 <= 127) && ((res1 == -1 || res1 == 0) || res1 == 1))) && (! multithreaded || ((((-128 <= res2 && -1 <= res2) && res2 <= 1) && res2 <= 127) && ((res2 == -1 || res2 == 0) || res2 == 1))) [2024-06-14 11:43:17,454 INFO L97 edCorrectnessWitness]: Location invariant before [L88-L88] (! multithreaded || ((((-128 <= res1 && -1 <= res1) && res1 <= 1) && res1 <= 127) && ((res1 == -1 || res1 == 0) || res1 == 1))) && (! multithreaded || ((((-128 <= res2 && -1 <= res2) && res2 <= 1) && res2 <= 127) && ((res2 == -1 || res2 == 0) || res2 == 1))) [2024-06-14 11:43:17,454 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 11:43:17,455 INFO L106 edCorrectnessWitness]: ghost_update [L87-L87] multithreaded = 1; [2024-06-14 11:43:17,470 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 11:43:17,592 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 11:43:17,600 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-06-14 11:43:17,602 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 11:43:17,614 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 11:43:17,624 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 11:43:17,679 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 11:43:17,700 INFO L206 MainTranslator]: Completed translation [2024-06-14 11:43:17,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:17 WrapperNode [2024-06-14 11:43:17,700 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 11:43:17,701 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 11:43:17,701 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 11:43:17,701 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 11:43:17,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:17" (1/1) ... [2024-06-14 11:43:17,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:17" (1/1) ... [2024-06-14 11:43:17,731 INFO L138 Inliner]: procedures = 25, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 172 [2024-06-14 11:43:17,731 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 11:43:17,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 11:43:17,732 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 11:43:17,732 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 11:43:17,741 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:17" (1/1) ... [2024-06-14 11:43:17,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:17" (1/1) ... [2024-06-14 11:43:17,754 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:17" (1/1) ... [2024-06-14 11:43:17,769 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-06-14 11:43:17,769 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:17" (1/1) ... [2024-06-14 11:43:17,769 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:17" (1/1) ... [2024-06-14 11:43:17,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:17" (1/1) ... [2024-06-14 11:43:17,781 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:17" (1/1) ... [2024-06-14 11:43:17,783 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:17" (1/1) ... [2024-06-14 11:43:17,784 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:17" (1/1) ... [2024-06-14 11:43:17,786 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 11:43:17,786 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 11:43:17,786 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 11:43:17,787 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 11:43:17,787 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:17" (1/1) ... [2024-06-14 11:43:17,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 11:43:17,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 11:43:17,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-14 11:43:17,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-14 11:43:17,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 11:43:17,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 11:43:17,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 11:43:17,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 11:43:17,846 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 11:43:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-06-14 11:43:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-06-14 11:43:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-14 11:43:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-06-14 11:43:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-06-14 11:43:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 11:43:17,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 11:43:17,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-06-14 11:43:17,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-06-14 11:43:17,848 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 11:43:17,924 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 11:43:17,926 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 11:43:18,288 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 11:43:18,288 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 11:43:18,499 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 11:43:18,500 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-06-14 11:43:18,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 11:43:18 BoogieIcfgContainer [2024-06-14 11:43:18,501 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 11:43:18,502 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 11:43:18,502 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 11:43:18,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 11:43:18,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:43:16" (1/4) ... [2024-06-14 11:43:18,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44fa6f3b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 11:43:18, skipping insertion in model container [2024-06-14 11:43:18,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 11:43:17" (2/4) ... [2024-06-14 11:43:18,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44fa6f3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 11:43:18, skipping insertion in model container [2024-06-14 11:43:18,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:43:17" (3/4) ... [2024-06-14 11:43:18,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44fa6f3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 11:43:18, skipping insertion in model container [2024-06-14 11:43:18,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 11:43:18" (4/4) ... [2024-06-14 11:43:18,508 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2024-06-14 11:43:18,522 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 11:43:18,522 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-14 11:43:18,522 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 11:43:18,560 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-14 11:43:18,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 32 transitions, 78 flow [2024-06-14 11:43:18,616 INFO L124 PetriNetUnfolderBase]: 6/30 cut-off events. [2024-06-14 11:43:18,617 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-14 11:43:18,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 30 events. 6/30 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2024-06-14 11:43:18,621 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 32 transitions, 78 flow [2024-06-14 11:43:18,624 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 28 transitions, 65 flow [2024-06-14 11:43:18,635 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 11:43:18,641 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;@35f1e5a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 11:43:18,641 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-14 11:43:18,648 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 11:43:18,648 INFO L124 PetriNetUnfolderBase]: 4/14 cut-off events. [2024-06-14 11:43:18,648 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 11:43:18,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:43:18,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:43:18,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-14 11:43:18,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:43:18,653 INFO L85 PathProgramCache]: Analyzing trace with hash -297966284, now seen corresponding path program 1 times [2024-06-14 11:43:18,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-06-14 11:43:18,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525897805] [2024-06-14 11:43:18,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:43:18,663 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-06-14 11:43:18,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-06-14 11:43:18,670 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-06-14 11:43:18,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-06-14 11:43:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:43:18,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2024-06-14 11:43:18,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 11:43:18,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 11:43:18,837 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-14 11:43:18,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-06-14 11:43:18,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525897805] [2024-06-14 11:43:18,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1525897805] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:43:18,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:43:18,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 11:43:18,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641311802] [2024-06-14 11:43:18,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:43:18,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 11:43:18,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-06-14 11:43:18,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 11:43:18,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 11:43:18,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 32 [2024-06-14 11:43:18,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:43:18,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:43:18,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 32 [2024-06-14 11:43:18,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:43:19,009 INFO L124 PetriNetUnfolderBase]: 122/211 cut-off events. [2024-06-14 11:43:19,009 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-06-14 11:43:19,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 211 events. 122/211 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 589 event pairs, 72 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 378. Up to 198 conditions per place. [2024-06-14 11:43:19,013 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 22 selfloop transitions, 4 changer transitions 1/30 dead transitions. [2024-06-14 11:43:19,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 30 transitions, 123 flow [2024-06-14 11:43:19,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 11:43:19,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 11:43:19,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-06-14 11:43:19,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2024-06-14 11:43:19,030 INFO L175 Difference]: Start difference. First operand has 29 places, 28 transitions, 65 flow. Second operand 3 states and 44 transitions. [2024-06-14 11:43:19,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 30 transitions, 123 flow [2024-06-14 11:43:19,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 30 transitions, 118 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-14 11:43:19,042 INFO L231 Difference]: Finished difference. Result has 29 places, 29 transitions, 79 flow [2024-06-14 11:43:19,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=29, PETRI_TRANSITIONS=29} [2024-06-14 11:43:19,049 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 0 predicate places. [2024-06-14 11:43:19,049 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 29 transitions, 79 flow [2024-06-14 11:43:19,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:43:19,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:43:19,065 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:43:19,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-06-14 11:43:19,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-06-14 11:43:19,266 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-14 11:43:19,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:43:19,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1152051990, now seen corresponding path program 1 times [2024-06-14 11:43:19,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-06-14 11:43:19,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270689938] [2024-06-14 11:43:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:43:19,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-06-14 11:43:19,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-06-14 11:43:19,269 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-06-14 11:43:19,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-06-14 11:43:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:43:19,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2024-06-14 11:43:19,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 11:43:19,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-06-14 11:43:19,354 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-14 11:43:19,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-06-14 11:43:19,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-06-14 11:43:19,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270689938] [2024-06-14 11:43:19,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1270689938] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-14 11:43:19,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-06-14 11:43:19,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-06-14 11:43:19,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680224019] [2024-06-14 11:43:19,378 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-06-14 11:43:19,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 11:43:19,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-06-14 11:43:19,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 11:43:19,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-14 11:43:19,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 32 [2024-06-14 11:43:19,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 29 transitions, 79 flow. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:43:19,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:43:19,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 32 [2024-06-14 11:43:19,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:43:19,521 INFO L124 PetriNetUnfolderBase]: 116/206 cut-off events. [2024-06-14 11:43:19,521 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 11:43:19,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 206 events. 116/206 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 542 event pairs, 68 based on Foata normal form. 3/157 useless extension candidates. Maximal degree in co-relation 400. Up to 187 conditions per place. [2024-06-14 11:43:19,523 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 22 selfloop transitions, 10 changer transitions 0/35 dead transitions. [2024-06-14 11:43:19,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 35 transitions, 167 flow [2024-06-14 11:43:19,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 11:43:19,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 11:43:19,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 68 transitions. [2024-06-14 11:43:19,525 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3541666666666667 [2024-06-14 11:43:19,525 INFO L175 Difference]: Start difference. First operand has 29 places, 29 transitions, 79 flow. Second operand 6 states and 68 transitions. [2024-06-14 11:43:19,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 35 transitions, 167 flow [2024-06-14 11:43:19,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 35 transitions, 163 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 11:43:19,526 INFO L231 Difference]: Finished difference. Result has 35 places, 35 transitions, 141 flow [2024-06-14 11:43:19,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=141, PETRI_PLACES=35, PETRI_TRANSITIONS=35} [2024-06-14 11:43:19,527 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 6 predicate places. [2024-06-14 11:43:19,527 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 35 transitions, 141 flow [2024-06-14 11:43:19,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:43:19,527 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:43:19,528 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:43:19,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-06-14 11:43:19,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-06-14 11:43:19,731 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-14 11:43:19,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:43:19,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1761953100, now seen corresponding path program 2 times [2024-06-14 11:43:19,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-06-14 11:43:19,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472522829] [2024-06-14 11:43:19,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-06-14 11:43:19,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-06-14 11:43:19,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-06-14 11:43:19,736 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-06-14 11:43:19,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-06-14 11:43:19,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-06-14 11:43:19,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-06-14 11:43:19,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2024-06-14 11:43:19,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 11:43:19,967 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-06-14 11:43:19,968 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-14 11:43:19,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-06-14 11:43:19,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472522829] [2024-06-14 11:43:19,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1472522829] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:43:19,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:43:19,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 11:43:19,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579203032] [2024-06-14 11:43:19,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:43:19,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 11:43:19,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-06-14 11:43:19,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 11:43:19,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 11:43:19,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 32 [2024-06-14 11:43:19,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 35 transitions, 141 flow. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:43:19,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:43:19,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 32 [2024-06-14 11:43:19,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:43:20,066 INFO L124 PetriNetUnfolderBase]: 194/333 cut-off events. [2024-06-14 11:43:20,066 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-14 11:43:20,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 333 events. 194/333 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1047 event pairs, 77 based on Foata normal form. 25/285 useless extension candidates. Maximal degree in co-relation 656. Up to 171 conditions per place. [2024-06-14 11:43:20,068 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 47 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2024-06-14 11:43:20,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 51 transitions, 275 flow [2024-06-14 11:43:20,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 11:43:20,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 11:43:20,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2024-06-14 11:43:20,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5520833333333334 [2024-06-14 11:43:20,070 INFO L175 Difference]: Start difference. First operand has 35 places, 35 transitions, 141 flow. Second operand 3 states and 53 transitions. [2024-06-14 11:43:20,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 51 transitions, 275 flow [2024-06-14 11:43:20,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 51 transitions, 259 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-06-14 11:43:20,072 INFO L231 Difference]: Finished difference. Result has 37 places, 37 transitions, 146 flow [2024-06-14 11:43:20,072 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=37, PETRI_TRANSITIONS=37} [2024-06-14 11:43:20,073 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 8 predicate places. [2024-06-14 11:43:20,073 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 37 transitions, 146 flow [2024-06-14 11:43:20,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:43:20,073 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:43:20,073 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:43:20,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-06-14 11:43:20,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-06-14 11:43:20,280 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-14 11:43:20,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:43:20,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1546980138, now seen corresponding path program 1 times [2024-06-14 11:43:20,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-06-14 11:43:20,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979289292] [2024-06-14 11:43:20,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:43:20,281 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-06-14 11:43:20,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-06-14 11:43:20,283 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-06-14 11:43:20,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-06-14 11:43:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:43:20,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2024-06-14 11:43:20,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 11:43:20,425 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-06-14 11:43:20,428 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-14 11:43:20,518 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-06-14 11:43:20,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-06-14 11:43:20,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979289292] [2024-06-14 11:43:20,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979289292] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-14 11:43:20,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-06-14 11:43:20,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-06-14 11:43:20,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855268819] [2024-06-14 11:43:20,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-06-14 11:43:20,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-06-14 11:43:20,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-06-14 11:43:20,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-06-14 11:43:20,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-06-14 11:43:20,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 32 [2024-06-14 11:43:20,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 37 transitions, 146 flow. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 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) [2024-06-14 11:43:20,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:43:20,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 32 [2024-06-14 11:43:20,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:43:20,727 INFO L124 PetriNetUnfolderBase]: 166/301 cut-off events. [2024-06-14 11:43:20,728 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-06-14 11:43:20,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 708 conditions, 301 events. 166/301 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 949 event pairs, 114 based on Foata normal form. 1/267 useless extension candidates. Maximal degree in co-relation 644. Up to 277 conditions per place. [2024-06-14 11:43:20,730 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 24 selfloop transitions, 12 changer transitions 0/39 dead transitions. [2024-06-14 11:43:20,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 39 transitions, 230 flow [2024-06-14 11:43:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 11:43:20,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 11:43:20,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 71 transitions. [2024-06-14 11:43:20,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3169642857142857 [2024-06-14 11:43:20,731 INFO L175 Difference]: Start difference. First operand has 37 places, 37 transitions, 146 flow. Second operand 7 states and 71 transitions. [2024-06-14 11:43:20,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 39 transitions, 230 flow [2024-06-14 11:43:20,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 39 transitions, 227 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 11:43:20,733 INFO L231 Difference]: Finished difference. Result has 43 places, 39 transitions, 189 flow [2024-06-14 11:43:20,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=189, PETRI_PLACES=43, PETRI_TRANSITIONS=39} [2024-06-14 11:43:20,734 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 14 predicate places. [2024-06-14 11:43:20,734 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 39 transitions, 189 flow [2024-06-14 11:43:20,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 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) [2024-06-14 11:43:20,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:43:20,734 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:43:20,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-06-14 11:43:20,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-06-14 11:43:20,938 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-14 11:43:20,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:43:20,938 INFO L85 PathProgramCache]: Analyzing trace with hash -250540876, now seen corresponding path program 2 times [2024-06-14 11:43:20,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-06-14 11:43:20,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747350817] [2024-06-14 11:43:20,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-06-14 11:43:20,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-06-14 11:43:20,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-06-14 11:43:20,940 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-06-14 11:43:20,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-06-14 11:43:21,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-06-14 11:43:21,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-06-14 11:43:21,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2024-06-14 11:43:21,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 11:43:21,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-14 11:43:21,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 267 treesize of output 273 [2024-06-14 11:43:21,402 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-06-14 11:43:21,402 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-14 11:43:21,402 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-06-14 11:43:21,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747350817] [2024-06-14 11:43:21,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747350817] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:43:21,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:43:21,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 11:43:21,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884051964] [2024-06-14 11:43:21,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:43:21,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 11:43:21,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-06-14 11:43:21,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 11:43:21,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-14 11:43:21,414 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 32 [2024-06-14 11:43:21,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 39 transitions, 189 flow. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:43:21,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:43:21,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 32 [2024-06-14 11:43:21,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:43:21,577 INFO L124 PetriNetUnfolderBase]: 244/423 cut-off events. [2024-06-14 11:43:21,577 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-06-14 11:43:21,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 970 conditions, 423 events. 244/423 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1571 event pairs, 57 based on Foata normal form. 12/383 useless extension candidates. Maximal degree in co-relation 894. Up to 137 conditions per place. [2024-06-14 11:43:21,580 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 55 selfloop transitions, 6 changer transitions 6/68 dead transitions. [2024-06-14 11:43:21,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 68 transitions, 385 flow [2024-06-14 11:43:21,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 11:43:21,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 11:43:21,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 74 transitions. [2024-06-14 11:43:21,583 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4625 [2024-06-14 11:43:21,583 INFO L175 Difference]: Start difference. First operand has 43 places, 39 transitions, 189 flow. Second operand 5 states and 74 transitions. [2024-06-14 11:43:21,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 68 transitions, 385 flow [2024-06-14 11:43:21,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 68 transitions, 361 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-06-14 11:43:21,588 INFO L231 Difference]: Finished difference. Result has 44 places, 39 transitions, 186 flow [2024-06-14 11:43:21,588 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=186, PETRI_PLACES=44, PETRI_TRANSITIONS=39} [2024-06-14 11:43:21,590 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 15 predicate places. [2024-06-14 11:43:21,590 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 186 flow [2024-06-14 11:43:21,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:43:21,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:43:21,590 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:43:21,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-06-14 11:43:21,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-06-14 11:43:21,793 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-14 11:43:21,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:43:21,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1604453971, now seen corresponding path program 1 times [2024-06-14 11:43:21,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-06-14 11:43:21,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516598673] [2024-06-14 11:43:21,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:43:21,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-06-14 11:43:21,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-06-14 11:43:21,795 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-06-14 11:43:21,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-06-14 11:43:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:43:21,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjunts are in the unsatisfiable core [2024-06-14 11:43:21,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 11:43:22,184 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-14 11:43:22,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 267 treesize of output 273 [2024-06-14 11:43:22,257 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-06-14 11:43:22,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-14 11:43:22,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-06-14 11:43:22,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516598673] [2024-06-14 11:43:22,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516598673] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:43:22,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:43:22,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 11:43:22,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973452239] [2024-06-14 11:43:22,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:43:22,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 11:43:22,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-06-14 11:43:22,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 11:43:22,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-14 11:43:22,268 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 32 [2024-06-14 11:43:22,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 186 flow. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:43:22,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:43:22,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 32 [2024-06-14 11:43:22,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:43:22,423 INFO L124 PetriNetUnfolderBase]: 201/362 cut-off events. [2024-06-14 11:43:22,423 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-06-14 11:43:22,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 910 conditions, 362 events. 201/362 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1217 event pairs, 60 based on Foata normal form. 10/372 useless extension candidates. Maximal degree in co-relation 842. Up to 130 conditions per place. [2024-06-14 11:43:22,424 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 49 selfloop transitions, 7 changer transitions 6/63 dead transitions. [2024-06-14 11:43:22,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 63 transitions, 372 flow [2024-06-14 11:43:22,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 11:43:22,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 11:43:22,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 65 transitions. [2024-06-14 11:43:22,425 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40625 [2024-06-14 11:43:22,425 INFO L175 Difference]: Start difference. First operand has 44 places, 39 transitions, 186 flow. Second operand 5 states and 65 transitions. [2024-06-14 11:43:22,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 63 transitions, 372 flow [2024-06-14 11:43:22,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 63 transitions, 361 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-14 11:43:22,427 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 206 flow [2024-06-14 11:43:22,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=206, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2024-06-14 11:43:22,428 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 19 predicate places. [2024-06-14 11:43:22,428 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 206 flow [2024-06-14 11:43:22,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:43:22,428 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:43:22,428 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:43:22,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-06-14 11:43:22,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-06-14 11:43:22,635 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-14 11:43:22,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:43:22,635 INFO L85 PathProgramCache]: Analyzing trace with hash -2140499055, now seen corresponding path program 1 times [2024-06-14 11:43:22,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-06-14 11:43:22,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083117021] [2024-06-14 11:43:22,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:43:22,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-06-14 11:43:22,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-06-14 11:43:22,637 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-06-14 11:43:22,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-06-14 11:43:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:43:22,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 7 conjunts are in the unsatisfiable core [2024-06-14 11:43:22,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 11:43:35,916 WARN L293 SmtUtils]: Spent 12.78s on a formula simplification. DAG size of input: 700 DAG size of output: 488 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-06-14 11:43:35,916 INFO L349 Elim1Store]: treesize reduction 1143, result has 71.0 percent of original size [2024-06-14 11:43:35,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 541 treesize of output 2914 [2024-06-14 11:45:36,251 WARN L293 SmtUtils]: Spent 6.80s on a formula simplification. DAG size of input: 1019 DAG size of output: 1034 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-06-14 11:47:11,550 WARN L293 SmtUtils]: Spent 8.60s on a formula simplification that was a NOOP. DAG size: 854 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Killed by 15