./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a849f68 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-9a849f6-m [2024-10-26 14:41:29,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-26 14:41:29,679 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2024-10-26 14:41:29,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-26 14:41:29,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-26 14:41:29,716 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-26 14:41:29,718 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-26 14:41:29,719 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-26 14:41:29,719 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-26 14:41:29,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-26 14:41:29,723 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-26 14:41:29,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-26 14:41:29,724 INFO L153 SettingsManager]: * Use SBE=true [2024-10-26 14:41:29,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-26 14:41:29,724 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-26 14:41:29,725 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-26 14:41:29,725 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-26 14:41:29,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-26 14:41:29,725 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-26 14:41:29,727 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-26 14:41:29,728 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-26 14:41:29,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-26 14:41:29,728 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-26 14:41:29,729 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-26 14:41:29,729 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-26 14:41:29,729 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-26 14:41:29,729 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-26 14:41:29,730 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-26 14:41:29,730 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-26 14:41:29,730 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-26 14:41:29,730 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-26 14:41:29,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 14:41:29,730 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-26 14:41:29,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-26 14:41:29,731 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-26 14:41:29,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-26 14:41:29,731 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-26 14:41:29,731 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-26 14:41:29,731 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-26 14:41:29,732 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-26 14:41:29,732 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-26 14:41:29,734 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e [2024-10-26 14:41:30,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-26 14:41:30,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-26 14:41:30,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-26 14:41:30,042 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-26 14:41:30,042 INFO L274 PluginConnector]: CDTParser initialized [2024-10-26 14:41:30,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2024-10-26 14:41:31,497 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-26 14:41:31,741 INFO L384 CDTParser]: Found 1 translation units. [2024-10-26 14:41:31,743 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2024-10-26 14:41:31,756 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ba19e562e/e70471e6c0354fe6b38e48d35157bf1d/FLAG786a1462f [2024-10-26 14:41:32,121 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ba19e562e/e70471e6c0354fe6b38e48d35157bf1d [2024-10-26 14:41:32,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-26 14:41:32,125 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-26 14:41:32,127 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-26 14:41:32,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-26 14:41:32,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-26 14:41:32,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 02:41:32" (1/1) ... [2024-10-26 14:41:32,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3878a27a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:32, skipping insertion in model container [2024-10-26 14:41:32,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 02:41:32" (1/1) ... [2024-10-26 14:41:32,162 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-26 14:41:32,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 14:41:32,409 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-10-26 14:41:32,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43ee64d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:32, skipping insertion in model container [2024-10-26 14:41:32,410 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-26 14:41:32,410 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-26 14:41:32,411 INFO L158 Benchmark]: Toolchain (without parser) took 285.55ms. Allocated memory is still 174.1MB. Free memory was 137.4MB in the beginning and 125.6MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-26 14:41:32,412 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-26 14:41:32,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.92ms. Allocated memory is still 174.1MB. Free memory was 137.4MB in the beginning and 125.6MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-26 14:41:32,413 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.92ms. Allocated memory is still 174.1MB. Free memory was 137.4MB in the beginning and 125.6MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 101]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) 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/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-9a849f6-m [2024-10-26 14:41:34,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-26 14:41:34,470 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2024-10-26 14:41:34,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-26 14:41:34,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-26 14:41:34,516 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-26 14:41:34,517 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-26 14:41:34,521 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-26 14:41:34,522 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-26 14:41:34,523 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-26 14:41:34,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-26 14:41:34,524 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-26 14:41:34,525 INFO L153 SettingsManager]: * Use SBE=true [2024-10-26 14:41:34,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-26 14:41:34,527 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-26 14:41:34,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-26 14:41:34,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-26 14:41:34,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-26 14:41:34,529 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-26 14:41:34,529 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-26 14:41:34,532 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-26 14:41:34,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-26 14:41:34,533 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-26 14:41:34,533 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-26 14:41:34,533 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-26 14:41:34,534 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-26 14:41:34,534 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-26 14:41:34,534 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-26 14:41:34,534 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-26 14:41:34,535 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-26 14:41:34,535 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-26 14:41:34,535 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-26 14:41:34,536 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-26 14:41:34,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 14:41:34,537 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-26 14:41:34,537 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-26 14:41:34,538 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-26 14:41:34,538 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-26 14:41:34,539 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-26 14:41:34,539 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-26 14:41:34,540 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-26 14:41:34,540 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-26 14:41:34,540 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-26 14:41:34,540 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-26 14:41:34,541 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e [2024-10-26 14:41:34,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-26 14:41:34,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-26 14:41:34,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-26 14:41:34,870 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-26 14:41:34,870 INFO L274 PluginConnector]: CDTParser initialized [2024-10-26 14:41:34,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2024-10-26 14:41:36,325 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-26 14:41:36,542 INFO L384 CDTParser]: Found 1 translation units. [2024-10-26 14:41:36,542 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2024-10-26 14:41:36,554 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f808577d9/760663dd1b514ce0aa9b212d4b6de9a0/FLAG91c106c33 [2024-10-26 14:41:36,570 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f808577d9/760663dd1b514ce0aa9b212d4b6de9a0 [2024-10-26 14:41:36,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-26 14:41:36,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-26 14:41:36,588 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-26 14:41:36,588 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-26 14:41:36,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-26 14:41:36,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 02:41:36" (1/1) ... [2024-10-26 14:41:36,597 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c93b7c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:36, skipping insertion in model container [2024-10-26 14:41:36,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 02:41:36" (1/1) ... [2024-10-26 14:41:36,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-26 14:41:36,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 14:41:36,897 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-26 14:41:36,902 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-26 14:41:36,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 14:41:36,938 INFO L200 MainTranslator]: Completed pre-run [2024-10-26 14:41:36,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 14:41:36,999 INFO L204 MainTranslator]: Completed translation [2024-10-26 14:41:36,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:36 WrapperNode [2024-10-26 14:41:36,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-26 14:41:37,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-26 14:41:37,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-26 14:41:37,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-26 14:41:37,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:36" (1/1) ... [2024-10-26 14:41:37,022 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:36" (1/1) ... [2024-10-26 14:41:37,060 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 14, calls inlined = 20, statements flattened = 211 [2024-10-26 14:41:37,061 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-26 14:41:37,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-26 14:41:37,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-26 14:41:37,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-26 14:41:37,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:36" (1/1) ... [2024-10-26 14:41:37,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:36" (1/1) ... [2024-10-26 14:41:37,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:36" (1/1) ... [2024-10-26 14:41:37,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:36" (1/1) ... [2024-10-26 14:41:37,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:36" (1/1) ... [2024-10-26 14:41:37,108 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:36" (1/1) ... [2024-10-26 14:41:37,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:36" (1/1) ... [2024-10-26 14:41:37,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:36" (1/1) ... [2024-10-26 14:41:37,122 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-26 14:41:37,129 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-26 14:41:37,129 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-26 14:41:37,129 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-26 14:41:37,130 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:36" (1/1) ... [2024-10-26 14:41:37,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 14:41:37,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 14:41:37,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-26 14:41:37,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-26 14:41:37,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-26 14:41:37,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-26 14:41:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-10-26 14:41:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-26 14:41:37,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-26 14:41:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-26 14:41:37,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-26 14:41:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-26 14:41:37,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-26 14:41:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-26 14:41:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-26 14:41:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-26 14:41:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-26 14:41:37,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-26 14:41:37,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-10-26 14:41:37,234 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-26 14:41:37,355 INFO L238 CfgBuilder]: Building ICFG [2024-10-26 14:41:37,359 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-26 14:41:37,944 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-26 14:41:37,944 INFO L287 CfgBuilder]: Performing block encoding [2024-10-26 14:41:38,405 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-26 14:41:38,407 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-26 14:41:38,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 02:41:38 BoogieIcfgContainer [2024-10-26 14:41:38,407 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-26 14:41:38,410 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-26 14:41:38,410 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-26 14:41:38,413 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-26 14:41:38,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 02:41:36" (1/3) ... [2024-10-26 14:41:38,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5e9103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 02:41:38, skipping insertion in model container [2024-10-26 14:41:38,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:41:36" (2/3) ... [2024-10-26 14:41:38,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5e9103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 02:41:38, skipping insertion in model container [2024-10-26 14:41:38,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 02:41:38" (3/3) ... [2024-10-26 14:41:38,417 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-mts.wvr.c [2024-10-26 14:41:38,434 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-26 14:41:38,435 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-26 14:41:38,435 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-26 14:41:38,537 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-26 14:41:38,583 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 14:41:38,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-26 14:41:38,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 14:41:38,586 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-26 14:41:38,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-26 14:41:38,627 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-26 14:41:38,638 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork2 ======== [2024-10-26 14:41:38,644 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@2c19773, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 14:41:38,645 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-26 14:41:39,061 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2024-10-26 14:41:39,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:41:39,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2074673394, now seen corresponding path program 1 times [2024-10-26 14:41:39,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:41:39,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801070474] [2024-10-26 14:41:39,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:41:39,080 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 [2024-10-26 14:41:39,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:41:39,107 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-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) [2024-10-26 14:41:39,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:41:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:41:39,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-26 14:41:39,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:41:39,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-26 14:41:39,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:41:39,266 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 14:41:39,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:41:39,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801070474] [2024-10-26 14:41:39,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801070474] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 14:41:39,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 14:41:39,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-26 14:41:39,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055526663] [2024-10-26 14:41:39,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 14:41:39,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-26 14:41:39,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:41:39,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-26 14:41:39,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-26 14:41:39,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:41:39,303 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:41:39,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-26 14:41:39,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:41:39,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:39,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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)] Forceful destruction successful, exit code 0 [2024-10-26 14:41:39,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:41:39,652 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2024-10-26 14:41:39,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:41:39,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2074673395, now seen corresponding path program 1 times [2024-10-26 14:41:39,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:41:39,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651213451] [2024-10-26 14:41:39,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:41:39,654 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 [2024-10-26 14:41:39,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:41:39,657 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-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) [2024-10-26 14:41:39,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:41:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:41:39,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-26 14:41:39,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:41:39,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-26 14:41:39,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:41:39,951 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 14:41:39,951 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:41:39,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651213451] [2024-10-26 14:41:39,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651213451] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 14:41:39,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 14:41:39,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-26 14:41:39,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845195230] [2024-10-26 14:41:39,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 14:41:39,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-26 14:41:39,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:41:39,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-26 14:41:39,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-26 14:41:39,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:41:39,956 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:41:39,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-26 14:41:39,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:39,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:41:40,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:40,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:41:40,253 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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)] Ended with exit code 0 [2024-10-26 14:41:40,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:41:40,451 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2024-10-26 14:41:40,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:41:40,451 INFO L85 PathProgramCache]: Analyzing trace with hash 812573972, now seen corresponding path program 1 times [2024-10-26 14:41:40,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:41:40,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874544682] [2024-10-26 14:41:40,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:41:40,452 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 [2024-10-26 14:41:40,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:41:40,455 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-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) [2024-10-26 14:41:40,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:41:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:41:40,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-26 14:41:40,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:41:40,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-26 14:41:40,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:41:40,730 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 14:41:40,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:41:40,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874544682] [2024-10-26 14:41:40,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874544682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 14:41:40,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 14:41:40,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-26 14:41:40,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253633072] [2024-10-26 14:41:40,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 14:41:40,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-26 14:41:40,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:41:40,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-26 14:41:40,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-26 14:41:40,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:41:40,734 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:41:40,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-10-26 14:41:40,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:40,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:41:40,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:41:40,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:40,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:41:40,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:40,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:41:41,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:41:41,080 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2024-10-26 14:41:41,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:41:41,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1332343197, now seen corresponding path program 1 times [2024-10-26 14:41:41,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:41:41,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [236565795] [2024-10-26 14:41:41,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:41:41,082 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 [2024-10-26 14:41:41,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:41:41,085 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-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) [2024-10-26 14:41:41,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:41:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:41:41,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-26 14:41:41,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:41:41,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-26 14:41:41,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-26 14:41:41,691 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:41:42,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-26 14:41:42,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:41:42,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [236565795] [2024-10-26 14:41:42,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [236565795] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:41:42,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:41:42,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2024-10-26 14:41:42,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241726268] [2024-10-26 14:41:42,154 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:41:42,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-26 14:41:42,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:41:42,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-26 14:41:42,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-26 14:41:42,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:41:42,156 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:41:42,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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) [2024-10-26 14:41:42,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:42,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:41:42,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:42,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:41:43,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:43,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:41:43,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:43,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:41:43,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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)] Ended with exit code 0 [2024-10-26 14:41:43,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:41:43,374 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2024-10-26 14:41:43,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:41:43,375 INFO L85 PathProgramCache]: Analyzing trace with hash -631651702, now seen corresponding path program 2 times [2024-10-26 14:41:43,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:41:43,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911067475] [2024-10-26 14:41:43,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-26 14:41:43,376 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 [2024-10-26 14:41:43,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:41:43,378 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-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) [2024-10-26 14:41:43,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:41:43,520 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-26 14:41:43,520 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:41:43,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-26 14:41:43,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:41:43,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-26 14:41:44,174 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:41:44,174 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:41:45,199 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:41:45,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:41:45,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911067475] [2024-10-26 14:41:45,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911067475] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:41:45,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:41:45,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 17 [2024-10-26 14:41:45,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532446758] [2024-10-26 14:41:45,201 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:41:45,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-26 14:41:45,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:41:45,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-26 14:41:45,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-10-26 14:41:45,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:41:45,203 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:41:45,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 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) [2024-10-26 14:41:45,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:45,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:41:45,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:45,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:41:45,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:41:46,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:46,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:41:46,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:46,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:41:46,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:41:46,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:41:46,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:41:46,224 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2024-10-26 14:41:46,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:41:46,225 INFO L85 PathProgramCache]: Analyzing trace with hash -194201329, now seen corresponding path program 3 times [2024-10-26 14:41:46,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:41:46,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619307654] [2024-10-26 14:41:46,225 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-26 14:41:46,225 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 [2024-10-26 14:41:46,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:41:46,227 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-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) [2024-10-26 14:41:46,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:41:46,457 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-10-26 14:41:46,457 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:41:46,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-26 14:41:46,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:41:46,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-26 14:41:47,202 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-26 14:41:47,202 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:41:48,534 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-26 14:41:48,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:41:48,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619307654] [2024-10-26 14:41:48,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619307654] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:41:48,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:41:48,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2024-10-26 14:41:48,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437065423] [2024-10-26 14:41:48,535 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:41:48,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-26 14:41:48,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:41:48,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-26 14:41:48,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2024-10-26 14:41:48,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:41:48,538 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:41:48,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 19 states have internal predecessors, (60), 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) [2024-10-26 14:41:48,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:48,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:41:48,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:48,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:41:48,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:41:48,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:41:54,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:54,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:41:54,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:54,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:41:54,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:41:54,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:41:54,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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)] Forceful destruction successful, exit code 0 [2024-10-26 14:41:54,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:41:54,282 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2024-10-26 14:41:54,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:41:54,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1152388591, now seen corresponding path program 4 times [2024-10-26 14:41:54,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:41:54,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074180448] [2024-10-26 14:41:54,284 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-26 14:41:54,284 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 [2024-10-26 14:41:54,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:41:54,288 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-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) [2024-10-26 14:41:54,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 (9)] Waiting until timeout for monitored process [2024-10-26 14:41:54,644 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-26 14:41:54,644 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:41:54,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-26 14:41:54,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:41:54,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-26 14:41:55,678 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 111 proven. 135 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-26 14:41:55,678 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:41:58,726 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:41:58,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:41:58,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074180448] [2024-10-26 14:41:58,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074180448] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:41:58,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:41:58,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 33 [2024-10-26 14:41:58,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508595697] [2024-10-26 14:41:58,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:41:58,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-26 14:41:58,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:41:58,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-26 14:41:58,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=961, Unknown=0, NotChecked=0, Total=1122 [2024-10-26 14:41:58,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:41:58,731 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:41:58,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.6176470588235294) internal successors, (123), 33 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-26 14:41:58,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:58,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:41:58,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:41:58,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:41:58,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:41:58,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:41:58,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:42:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:42:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:42:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:42:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:42:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:42:00,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:42:00,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-26 14:42:00,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 (9)] Forceful destruction successful, exit code 0 [2024-10-26 14:42:00,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:42:00,695 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2024-10-26 14:42:00,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:42:00,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1494863925, now seen corresponding path program 5 times [2024-10-26 14:42:00,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:42:00,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787551796] [2024-10-26 14:42:00,697 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-26 14:42:00,697 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 [2024-10-26 14:42:00,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:42:00,700 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-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) [2024-10-26 14:42:00,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 (10)] Waiting until timeout for monitored process [2024-10-26 14:42:01,669 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-10-26 14:42:01,670 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:42:01,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-10-26 14:42:01,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:42:01,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-26 14:42:03,207 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 29 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:42:03,207 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:42:08,873 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 0 proven. 309 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:42:08,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:42:08,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787551796] [2024-10-26 14:42:08,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787551796] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:42:08,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:42:08,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 23] total 44 [2024-10-26 14:42:08,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827678725] [2024-10-26 14:42:08,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:42:08,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-10-26 14:42:08,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:42:08,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-10-26 14:42:08,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1680, Unknown=0, NotChecked=0, Total=1980 [2024-10-26 14:42:08,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:42:08,878 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:42:08,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.2888888888888888) internal successors, (148), 44 states have internal predecessors, (148), 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) [2024-10-26 14:42:08,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:42:08,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:42:08,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:42:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:42:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:42:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:42:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-26 14:42:08,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:42:20,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:42:20,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:42:20,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:42:20,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:42:20,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:42:20,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:42:20,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-26 14:42:20,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-26 14:42:20,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 (10)] Forceful destruction successful, exit code 0 [2024-10-26 14:42:20,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:42:20,926 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2024-10-26 14:42:20,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:42:20,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1814280689, now seen corresponding path program 6 times [2024-10-26 14:42:20,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:42:20,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650666823] [2024-10-26 14:42:20,927 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-26 14:42:20,927 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 [2024-10-26 14:42:20,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:42:20,931 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-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) [2024-10-26 14:42:20,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 (11)] Waiting until timeout for monitored process [2024-10-26 14:42:22,440 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2024-10-26 14:42:22,440 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:42:22,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-26 14:42:22,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:42:22,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-26 14:42:23,254 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 0 proven. 533 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-26 14:42:23,255 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:42:29,091 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 156 proven. 377 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-26 14:42:29,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:42:29,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650666823] [2024-10-26 14:42:29,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650666823] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:42:29,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:42:29,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 26] total 51 [2024-10-26 14:42:29,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285773999] [2024-10-26 14:42:29,092 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:42:29,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-10-26 14:42:29,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:42:29,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-10-26 14:42:29,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=2428, Unknown=0, NotChecked=0, Total=2756 [2024-10-26 14:42:29,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:42:29,097 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:42:29,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 3.230769230769231) internal successors, (168), 52 states have internal predecessors, (168), 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) [2024-10-26 14:42:29,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:42:29,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:42:29,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:42:29,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:42:29,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:42:29,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:42:29,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-26 14:42:29,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-10-26 14:42:29,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:42:38,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:42:38,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:42:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:42:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:42:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:42:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:42:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-26 14:42:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-26 14:42:38,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-26 14:42:38,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 (11)] Forceful destruction successful, exit code 0 [2024-10-26 14:42:38,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:42:38,878 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2024-10-26 14:42:38,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:42:38,878 INFO L85 PathProgramCache]: Analyzing trace with hash 862290193, now seen corresponding path program 7 times [2024-10-26 14:42:38,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:42:38,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056910796] [2024-10-26 14:42:38,879 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-26 14:42:38,879 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 [2024-10-26 14:42:38,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:42:38,881 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-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) [2024-10-26 14:42:38,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 (12)] Waiting until timeout for monitored process [2024-10-26 14:42:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:42:39,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-10-26 14:42:39,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:42:40,360 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 674 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-26 14:42:40,361 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:42:42,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2024-10-26 14:42:45,340 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 674 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-26 14:42:45,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:42:45,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056910796] [2024-10-26 14:42:45,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056910796] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:42:45,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:42:45,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 62 [2024-10-26 14:42:45,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101335134] [2024-10-26 14:42:45,341 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:42:45,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-10-26 14:42:45,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:42:45,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-10-26 14:42:45,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=455, Invalid=3577, Unknown=0, NotChecked=0, Total=4032 [2024-10-26 14:42:45,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:42:45,344 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:42:45,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 3.238095238095238) internal successors, (204), 63 states have internal predecessors, (204), 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) [2024-10-26 14:42:45,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:42:45,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:42:45,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:42:45,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:42:45,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:42:45,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:42:45,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-26 14:42:45,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-10-26 14:42:45,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-10-26 14:42:45,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:42:55,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:42:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:42:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:42:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:42:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:42:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:42:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-26 14:42:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-26 14:42:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-26 14:42:55,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-10-26 14:42:55,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 (12)] Ended with exit code 0 [2024-10-26 14:42:55,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:42:55,728 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2024-10-26 14:42:55,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:42:55,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1067967277, now seen corresponding path program 8 times [2024-10-26 14:42:55,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:42:55,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488418851] [2024-10-26 14:42:55,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-26 14:42:55,729 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 [2024-10-26 14:42:55,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:42:55,730 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-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) [2024-10-26 14:42:55,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 (13)] Waiting until timeout for monitored process [2024-10-26 14:42:56,425 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-26 14:42:56,426 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:42:56,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-10-26 14:42:56,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:42:56,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-26 14:42:58,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 0 proven. 1656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:42:58,537 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:43:13,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 32 proven. 1624 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:43:13,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:43:13,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488418851] [2024-10-26 14:43:13,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488418851] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:43:13,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:43:13,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 102 [2024-10-26 14:43:13,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396109710] [2024-10-26 14:43:13,591 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:43:13,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2024-10-26 14:43:13,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:43:13,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2024-10-26 14:43:13,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1481, Invalid=9231, Unknown=0, NotChecked=0, Total=10712 [2024-10-26 14:43:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:43:13,595 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:43:13,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 103 states have (on average 2.9514563106796117) internal successors, (304), 103 states have internal predecessors, (304), 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) [2024-10-26 14:43:13,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:43:13,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:43:13,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:43:13,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:43:13,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:43:13,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:43:13,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-26 14:43:13,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-10-26 14:43:13,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-10-26 14:43:13,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2024-10-26 14:43:13,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:44:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:44:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:44:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:44:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:44:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:44:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:44:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-26 14:44:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-26 14:44:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-26 14:44:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-10-26 14:44:01,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-10-26 14:44:01,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 (13)] Ended with exit code 0 [2024-10-26 14:44:02,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:44:02,162 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2024-10-26 14:44:02,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:44:02,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1829969453, now seen corresponding path program 9 times [2024-10-26 14:44:02,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:44:02,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706768820] [2024-10-26 14:44:02,163 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-26 14:44:02,163 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 [2024-10-26 14:44:02,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:44:02,164 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-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) [2024-10-26 14:44:02,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 (14)] Waiting until timeout for monitored process [2024-10-26 14:44:14,593 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2024-10-26 14:44:14,593 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:44:14,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 85 conjuncts are in the unsatisfiable core [2024-10-26 14:44:14,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:44:14,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-26 14:44:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3568 backedges. 32 proven. 3536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:44:24,484 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:45:28,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3568 backedges. 0 proven. 3568 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:45:28,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:45:28,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706768820] [2024-10-26 14:45:28,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1706768820] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:45:28,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:45:28,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 70] total 139 [2024-10-26 14:45:28,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019667651] [2024-10-26 14:45:28,083 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:45:28,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 140 states [2024-10-26 14:45:28,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:45:28,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2024-10-26 14:45:28,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2658, Invalid=16802, Unknown=0, NotChecked=0, Total=19460 [2024-10-26 14:45:28,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:45:28,089 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:45:28,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 140 states, 140 states have (on average 3.3142857142857145) internal successors, (464), 139 states have internal predecessors, (464), 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) [2024-10-26 14:45:28,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:45:28,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:45:28,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:45:28,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:45:28,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:45:28,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:45:28,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-26 14:45:28,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-10-26 14:45:28,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-10-26 14:45:28,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2024-10-26 14:45:28,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-10-26 14:45:28,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:46:15,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-26 14:46:24,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-26 14:46:38,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-26 14:46:47,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-26 14:46:55,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-26 14:47:03,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-26 14:47:18,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-26 14:47:55,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-26 14:49:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:49:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:49:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:49:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:49:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:49:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:49:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-26 14:49:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-26 14:49:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-26 14:49:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-10-26 14:49:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-10-26 14:49:08,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-10-26 14:49:08,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 (14)] Forceful destruction successful, exit code 0 [2024-10-26 14:49:08,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:49:08,284 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2024-10-26 14:49:08,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:49:08,284 INFO L85 PathProgramCache]: Analyzing trace with hash -129652063, now seen corresponding path program 10 times [2024-10-26 14:49:08,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:49:08,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739695617] [2024-10-26 14:49:08,285 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-26 14:49:08,285 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 [2024-10-26 14:49:08,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:49:08,286 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-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) [2024-10-26 14:49:08,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 (15)] Waiting until timeout for monitored process [2024-10-26 14:49:09,934 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-26 14:49:09,934 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:49:09,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-10-26 14:49:09,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:49:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 6900 backedges. 0 proven. 5811 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2024-10-26 14:49:15,482 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:49:37,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2024-10-26 14:50:01,035 INFO L134 CoverageAnalysis]: Checked inductivity of 6900 backedges. 0 proven. 5811 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2024-10-26 14:50:01,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:50:01,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739695617] [2024-10-26 14:50:01,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1739695617] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:50:01,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:50:01,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 71] total 139 [2024-10-26 14:50:01,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504597078] [2024-10-26 14:50:01,036 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:50:01,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 141 states [2024-10-26 14:50:01,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:50:01,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2024-10-26 14:50:01,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1523, Invalid=18217, Unknown=0, NotChecked=0, Total=19740 [2024-10-26 14:50:01,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:50:01,049 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:50:01,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 141 states, 140 states have (on average 3.3714285714285714) internal successors, (472), 140 states have internal predecessors, (472), 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) [2024-10-26 14:50:01,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:50:01,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:50:01,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:50:01,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:50:01,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:50:01,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:50:01,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-26 14:50:01,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-10-26 14:50:01,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-10-26 14:50:01,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2024-10-26 14:50:01,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-10-26 14:50:01,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2024-10-26 14:50:01,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:51:42,305 WARN L286 SmtUtils]: Spent 9.08s on a formula simplification. DAG size of input: 237 DAG size of output: 216 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:51:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:51:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:51:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:51:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:51:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:51:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:51:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-26 14:51:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-26 14:51:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-26 14:51:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-10-26 14:51:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-10-26 14:51:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-10-26 14:51:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2024-10-26 14:51:42,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 (15)] Forceful destruction successful, exit code 0 [2024-10-26 14:51:43,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-10-26 14:51:43,001 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2024-10-26 14:51:43,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:51:43,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1052829658, now seen corresponding path program 11 times [2024-10-26 14:51:43,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:51:43,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071637403] [2024-10-26 14:51:43,002 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-26 14:51:43,003 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 [2024-10-26 14:51:43,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:51:43,004 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-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) [2024-10-26 14:51:43,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 (16)] Waiting until timeout for monitored process [2024-10-26 14:52:04,961 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) [2024-10-26 14:52:04,961 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:52:05,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 1475 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-10-26 14:52:05,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:52:14,341 INFO L134 CoverageAnalysis]: Checked inductivity of 7062 backedges. 0 proven. 7058 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-26 14:52:14,342 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:52:35,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2024-10-26 14:53:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 7062 backedges. 0 proven. 7058 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-26 14:53:20,546 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:53:20,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071637403] [2024-10-26 14:53:20,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071637403] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:53:20,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:53:20,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 100] total 200 [2024-10-26 14:53:20,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202722995] [2024-10-26 14:53:20,546 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:53:20,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 202 states [2024-10-26 14:53:20,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:53:20,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2024-10-26 14:53:20,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5156, Invalid=35446, Unknown=0, NotChecked=0, Total=40602 [2024-10-26 14:53:20,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:53:20,552 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:53:20,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 202 states, 201 states have (on average 3.014925373134328) internal successors, (606), 201 states have internal predecessors, (606), 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) [2024-10-26 14:53:20,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:53:20,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:53:20,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:53:20,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:53:20,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:53:20,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:53:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-26 14:53:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-10-26 14:53:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-10-26 14:53:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2024-10-26 14:53:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-10-26 14:53:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2024-10-26 14:53:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2024-10-26 14:53:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Killed by 15