./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-more-inc-subseq.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-inc-subseq.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 69f7b2e4777088b02df05d348ae0a210dcd9618a97428b10acd3ef63d9199610 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-9a849f6-m [2024-10-26 14:30:29,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-26 14:30:30,042 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2024-10-26 14:30:30,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-26 14:30:30,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-26 14:30:30,088 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-26 14:30:30,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-26 14:30:30,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-26 14:30:30,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-26 14:30:30,092 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-26 14:30:30,093 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-26 14:30:30,093 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-26 14:30:30,094 INFO L153 SettingsManager]: * Use SBE=true [2024-10-26 14:30:30,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-26 14:30:30,095 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-26 14:30:30,096 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-26 14:30:30,096 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-26 14:30:30,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-26 14:30:30,099 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-26 14:30:30,099 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-26 14:30:30,100 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-26 14:30:30,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-26 14:30:30,100 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-26 14:30:30,100 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-26 14:30:30,101 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-26 14:30:30,101 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-26 14:30:30,101 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-26 14:30:30,101 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-26 14:30:30,102 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-26 14:30:30,102 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-26 14:30:30,102 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-26 14:30:30,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 14:30:30,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-26 14:30:30,103 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-26 14:30:30,103 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-26 14:30:30,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-26 14:30:30,103 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-26 14:30:30,104 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-26 14:30:30,104 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-26 14:30:30,104 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-26 14:30:30,105 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-26 14:30:30,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69f7b2e4777088b02df05d348ae0a210dcd9618a97428b10acd3ef63d9199610 [2024-10-26 14:30:30,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-26 14:30:30,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-26 14:30:30,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-26 14:30:30,364 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-26 14:30:30,365 INFO L274 PluginConnector]: CDTParser initialized [2024-10-26 14:30:30,367 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/popl20-more-inc-subseq.wvr.c [2024-10-26 14:30:31,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-26 14:30:32,023 INFO L384 CDTParser]: Found 1 translation units. [2024-10-26 14:30:32,024 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-inc-subseq.wvr.c [2024-10-26 14:30:32,036 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f6f39ded2/b9481a56efa6422ab8ba74a68d058eed/FLAG1547f77b4 [2024-10-26 14:30:32,053 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f6f39ded2/b9481a56efa6422ab8ba74a68d058eed [2024-10-26 14:30:32,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-26 14:30:32,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-26 14:30:32,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-26 14:30:32,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-26 14:30:32,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-26 14:30:32,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 02:30:32" (1/1) ... [2024-10-26 14:30:32,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f77f7c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:32, skipping insertion in model container [2024-10-26 14:30:32,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 02:30:32" (1/1) ... [2024-10-26 14:30:32,097 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-26 14:30:32,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 14:30:32,345 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 14:30:32,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43c3d634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:32, skipping insertion in model container [2024-10-26 14:30:32,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-26 14:30:32,348 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-26 14:30:32,350 INFO L158 Benchmark]: Toolchain (without parser) took 291.13ms. Allocated memory is still 146.8MB. Free memory was 99.4MB in the beginning and 87.8MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-26 14:30:32,351 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 146.8MB. Free memory is still 112.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-26 14:30:32,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.06ms. Allocated memory is still 146.8MB. Free memory was 98.8MB in the beginning and 87.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-26 14:30:32,353 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 146.8MB. Free memory is still 112.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.06ms. Allocated memory is still 146.8MB. Free memory was 98.8MB in the beginning and 87.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 116]: 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-inc-subseq.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 69f7b2e4777088b02df05d348ae0a210dcd9618a97428b10acd3ef63d9199610 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-9a849f6-m [2024-10-26 14:30:34,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-26 14:30:34,336 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2024-10-26 14:30:34,341 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-26 14:30:34,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-26 14:30:34,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-26 14:30:34,377 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-26 14:30:34,378 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-26 14:30:34,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-26 14:30:34,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-26 14:30:34,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-26 14:30:34,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-26 14:30:34,381 INFO L153 SettingsManager]: * Use SBE=true [2024-10-26 14:30:34,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-26 14:30:34,383 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-26 14:30:34,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-26 14:30:34,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-26 14:30:34,387 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-26 14:30:34,387 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-26 14:30:34,388 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-26 14:30:34,388 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-26 14:30:34,388 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-26 14:30:34,389 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-26 14:30:34,389 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-26 14:30:34,389 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-26 14:30:34,389 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-26 14:30:34,389 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-26 14:30:34,390 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-26 14:30:34,390 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-26 14:30:34,390 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-26 14:30:34,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-26 14:30:34,391 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-26 14:30:34,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-26 14:30:34,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 14:30:34,391 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-26 14:30:34,393 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-26 14:30:34,393 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-26 14:30:34,404 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-26 14:30:34,404 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-26 14:30:34,405 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-26 14:30:34,405 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-26 14:30:34,406 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-26 14:30:34,406 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-26 14:30:34,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-26 14:30:34,407 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69f7b2e4777088b02df05d348ae0a210dcd9618a97428b10acd3ef63d9199610 [2024-10-26 14:30:34,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-26 14:30:34,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-26 14:30:34,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-26 14:30:34,766 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-26 14:30:34,766 INFO L274 PluginConnector]: CDTParser initialized [2024-10-26 14:30:34,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/popl20-more-inc-subseq.wvr.c [2024-10-26 14:30:36,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-26 14:30:36,376 INFO L384 CDTParser]: Found 1 translation units. [2024-10-26 14:30:36,376 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-inc-subseq.wvr.c [2024-10-26 14:30:36,383 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0ad7fb89d/8540cdf3b9074e09b4825a1fdab8d66c/FLAG2513b1a66 [2024-10-26 14:30:36,395 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0ad7fb89d/8540cdf3b9074e09b4825a1fdab8d66c [2024-10-26 14:30:36,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-26 14:30:36,399 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-26 14:30:36,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-26 14:30:36,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-26 14:30:36,406 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-26 14:30:36,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 02:30:36" (1/1) ... [2024-10-26 14:30:36,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b0f0160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:36, skipping insertion in model container [2024-10-26 14:30:36,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 02:30:36" (1/1) ... [2024-10-26 14:30:36,433 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-26 14:30:36,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 14:30:36,683 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-26 14:30:36,690 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-26 14:30:36,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 14:30:36,722 INFO L200 MainTranslator]: Completed pre-run [2024-10-26 14:30:36,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 14:30:36,779 INFO L204 MainTranslator]: Completed translation [2024-10-26 14:30:36,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:36 WrapperNode [2024-10-26 14:30:36,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-26 14:30:36,781 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-26 14:30:36,781 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-26 14:30:36,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-26 14:30:36,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:36" (1/1) ... [2024-10-26 14:30:36,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:36" (1/1) ... [2024-10-26 14:30:36,849 INFO L138 Inliner]: procedures = 25, calls = 36, calls flagged for inlining = 12, calls inlined = 14, statements flattened = 184 [2024-10-26 14:30:36,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-26 14:30:36,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-26 14:30:36,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-26 14:30:36,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-26 14:30:36,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:36" (1/1) ... [2024-10-26 14:30:36,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:36" (1/1) ... [2024-10-26 14:30:36,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:36" (1/1) ... [2024-10-26 14:30:36,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:36" (1/1) ... [2024-10-26 14:30:36,885 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:36" (1/1) ... [2024-10-26 14:30:36,893 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:36" (1/1) ... [2024-10-26 14:30:36,895 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:36" (1/1) ... [2024-10-26 14:30:36,899 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:36" (1/1) ... [2024-10-26 14:30:36,902 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-26 14:30:36,907 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-26 14:30:36,907 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-26 14:30:36,907 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-26 14:30:36,908 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:36" (1/1) ... [2024-10-26 14:30:36,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 14:30:36,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 14:30:36,943 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 14:30:36,947 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 14:30:36,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-26 14:30:36,994 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-26 14:30:36,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-26 14:30:36,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-26 14:30:36,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-26 14:30:36,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-26 14:30:36,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-26 14:30:36,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-26 14:30:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-26 14:30:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-10-26 14:30:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-26 14:30:36,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-26 14:30:36,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-10-26 14:30:36,999 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 14:30:37,125 INFO L238 CfgBuilder]: Building ICFG [2024-10-26 14:30:37,127 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-26 14:30:37,700 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-26 14:30:37,701 INFO L287 CfgBuilder]: Performing block encoding [2024-10-26 14:30:38,011 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-26 14:30:38,012 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-26 14:30:38,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 02:30:38 BoogieIcfgContainer [2024-10-26 14:30:38,013 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-26 14:30:38,014 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-26 14:30:38,015 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-26 14:30:38,019 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-26 14:30:38,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 02:30:36" (1/3) ... [2024-10-26 14:30:38,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efb6b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 02:30:38, skipping insertion in model container [2024-10-26 14:30:38,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 02:30:36" (2/3) ... [2024-10-26 14:30:38,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efb6b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 02:30:38, skipping insertion in model container [2024-10-26 14:30:38,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 02:30:38" (3/3) ... [2024-10-26 14:30:38,023 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-inc-subseq.wvr.c [2024-10-26 14:30:38,038 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-26 14:30:38,039 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-26 14:30:38,039 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-26 14:30:38,090 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-26 14:30:38,131 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 14:30:38,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-26 14:30:38,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 14:30:38,136 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 14:30:38,137 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 14:30:38,178 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-26 14:30:38,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork0 ======== [2024-10-26 14:30:38,197 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;@28648db6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 14:30:38,198 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-26 14:30:38,963 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2024-10-26 14:30:38,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:30:38,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1311503583, now seen corresponding path program 1 times [2024-10-26 14:30:38,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:30:38,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244601260] [2024-10-26 14:30:38,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:30:38,985 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 14:30:38,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:30:38,988 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 14:30:38,990 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 14:30:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:30:39,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-26 14:30:39,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:30:39,109 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 14:30:39,109 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 14:30:39,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:30:39,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244601260] [2024-10-26 14:30:39,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244601260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 14:30:39,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 14:30:39,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-26 14:30:39,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686370017] [2024-10-26 14:30:39,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 14:30:39,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-26 14:30:39,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:30:39,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-26 14:30:39,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-26 14:30:39,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:39,143 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:30:39,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 14:30:39,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:41,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:41,594 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 14:30:41,790 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 14:30:41,791 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2024-10-26 14:30:41,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:30:41,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1545784746, now seen corresponding path program 1 times [2024-10-26 14:30:41,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:30:41,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1404741573] [2024-10-26 14:30:41,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:30:41,793 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 14:30:41,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:30:41,794 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 14:30:41,796 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 14:30:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:30:41,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-26 14:30:41,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:30:41,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-26 14:30:41,901 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 14:30:41,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:30:41,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1404741573] [2024-10-26 14:30:41,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1404741573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 14:30:41,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 14:30:41,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-26 14:30:41,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354531723] [2024-10-26 14:30:41,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 14:30:41,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-26 14:30:41,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:30:41,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-26 14:30:41,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-26 14:30:41,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:41,905 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:30:41,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 14:30:41,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:41,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:43,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:43,901 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 14:30:44,097 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 14:30:44,098 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2024-10-26 14:30:44,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:30:44,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1545784747, now seen corresponding path program 1 times [2024-10-26 14:30:44,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:30:44,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918606364] [2024-10-26 14:30:44,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:30:44,100 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 14:30:44,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:30:44,101 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 14:30:44,102 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 14:30:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:30:44,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-26 14:30:44,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:30:44,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:30:44,341 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:30:44,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 14:30:44,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:30:44,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918606364] [2024-10-26 14:30:44,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [918606364] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:30:44,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:30:44,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2024-10-26 14:30:44,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888121568] [2024-10-26 14:30:44,586 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:30:44,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-26 14:30:44,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:30:44,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-26 14:30:44,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-26 14:30:44,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:44,588 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:30:44,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-26 14:30:44,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:44,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:44,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:46,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:46,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:30:46,699 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 14:30:46,895 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 14:30:46,896 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2024-10-26 14:30:46,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:30:46,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1490374266, now seen corresponding path program 1 times [2024-10-26 14:30:46,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:30:46,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038745109] [2024-10-26 14:30:46,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:30:46,897 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 14:30:46,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:30:46,899 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 14:30:46,900 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 14:30:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:30:47,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-26 14:30:47,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:30:47,200 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-26 14:30:47,200 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 14:30:47,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:30:47,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038745109] [2024-10-26 14:30:47,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038745109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 14:30:47,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 14:30:47,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-26 14:30:47,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692721705] [2024-10-26 14:30:47,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 14:30:47,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-26 14:30:47,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:30:47,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-26 14:30:47,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-26 14:30:47,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:47,203 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:30:47,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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 14:30:47,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:47,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:47,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:30:47,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:49,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:49,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:49,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:30:49,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:30:49,104 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 14:30:49,300 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 14:30:49,301 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2024-10-26 14:30:49,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:30:49,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1110630762, now seen corresponding path program 1 times [2024-10-26 14:30:49,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:30:49,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78542852] [2024-10-26 14:30:49,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:30:49,302 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 14:30:49,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:30:49,303 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 14:30:49,304 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 14:30:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:30:49,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-26 14:30:49,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:30:49,635 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-26 14:30:49,635 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:30:49,776 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 36 treesize of output 32 [2024-10-26 14:30:50,529 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-26 14:30:50,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:30:50,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [78542852] [2024-10-26 14:30:50,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [78542852] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:30:50,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:30:50,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2024-10-26 14:30:50,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554834188] [2024-10-26 14:30:50,530 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:30:50,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-26 14:30:50,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:30:50,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-26 14:30:50,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-10-26 14:30:50,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:50,533 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:30:50,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 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 14:30:50,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:50,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:50,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:30:50,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:30:50,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:30:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:30:54,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:30:54,075 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 (7)] Ended with exit code 0 [2024-10-26 14:30:54,271 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 14:30:54,272 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2024-10-26 14:30:54,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:30:54,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1082942981, now seen corresponding path program 2 times [2024-10-26 14:30:54,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:30:54,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568387780] [2024-10-26 14:30:54,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-26 14:30:54,273 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 14:30:54,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:30:54,274 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 14:30:54,277 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 14:30:54,346 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-26 14:30:54,346 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:30:54,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-26 14:30:54,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:30:54,363 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-26 14:30:54,364 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 14:30:54,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:30:54,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568387780] [2024-10-26 14:30:54,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [568387780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 14:30:54,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 14:30:54,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-26 14:30:54,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709874650] [2024-10-26 14:30:54,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 14:30:54,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-26 14:30:54,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:30:54,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-26 14:30:54,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-26 14:30:54,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:54,366 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:30:54,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 14:30:54,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:54,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:54,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:30:54,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:30:54,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:30:54,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:54,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:54,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:54,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:30:54,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:30:54,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:30:54,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:54,484 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 (8)] Ended with exit code 0 [2024-10-26 14:30:54,681 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 14:30:54,681 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2024-10-26 14:30:54,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:30:54,683 INFO L85 PathProgramCache]: Analyzing trace with hash 45559146, now seen corresponding path program 1 times [2024-10-26 14:30:54,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:30:54,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791837168] [2024-10-26 14:30:54,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:30:54,683 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 14:30:54,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:30:54,689 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 14:30:54,691 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 14:30:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:30:54,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-26 14:30:54,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:30:54,964 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-26 14:30:54,965 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:30:55,376 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-26 14:30:55,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:30:55,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791837168] [2024-10-26 14:30:55,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791837168] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:30:55,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:30:55,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-10-26 14:30:55,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201894824] [2024-10-26 14:30:55,378 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:30:55,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-26 14:30:55,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:30:55,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-26 14:30:55,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-10-26 14:30:55,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:55,380 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:30:55,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 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 14:30:55,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:55,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:55,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:30:55,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:30:55,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:30:55,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:55,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:55,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:55,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:55,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:30:55,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:30:55,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:30:55,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:55,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-26 14:30:55,738 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 (9)] Ended with exit code 0 [2024-10-26 14:30:55,932 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 14:30:55,932 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2024-10-26 14:30:55,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:30:55,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1092384134, now seen corresponding path program 2 times [2024-10-26 14:30:55,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:30:55,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940486792] [2024-10-26 14:30:55,933 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-26 14:30:55,933 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 14:30:55,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:30:55,935 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 14:30:55,935 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 14:30:56,011 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-26 14:30:56,011 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:30:56,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-26 14:30:56,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:30:56,031 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 14:30:56,037 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 14:30:56,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-26 14:30:56,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-26 14:30:56,107 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-26 14:30:56,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-26 14:30:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-26 14:30:56,308 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 14:30:56,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:30:56,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940486792] [2024-10-26 14:30:56,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940486792] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 14:30:56,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 14:30:56,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-26 14:30:56,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347718625] [2024-10-26 14:30:56,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 14:30:56,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-26 14:30:56,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:30:56,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-26 14:30:56,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-26 14:30:56,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:56,311 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:30:56,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 14:30:56,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:56,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:56,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:30:56,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:30:56,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-26 14:30:56,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:56,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-26 14:30:56,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:57,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:57,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:57,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:30:57,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:30:57,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:30:57,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:57,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:30:57,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:30:57,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 2 remaining) [2024-10-26 14:30:57,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 2 remaining) [2024-10-26 14:30:57,594 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 (10)] Ended with exit code 0 [2024-10-26 14:30:57,789 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 14:30:57,800 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2024-10-26 14:30:57,802 INFO L312 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork0 was SAFE,SAFE (1/3) [2024-10-26 14:30:57,805 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 14:30:57,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-26 14:30:57,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 14:30:57,807 INFO L229 MonitoredProcess]: Starting monitored process 11 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 14:30:57,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process [2024-10-26 14:30:57,811 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-26 14:30:57,812 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork1 ======== [2024-10-26 14:30:57,812 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;@28648db6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 14:30:57,812 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-26 14:30:58,143 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-26 14:30:58,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:30:58,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1243542403, now seen corresponding path program 1 times [2024-10-26 14:30:58,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:30:58,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366370101] [2024-10-26 14:30:58,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:30:58,144 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 14:30:58,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:30:58,147 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 14:30:58,149 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 14:30:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:30:58,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-26 14:30:58,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:30:58,234 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 14:30:58,234 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 14:30:58,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:30:58,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366370101] [2024-10-26 14:30:58,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366370101] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 14:30:58,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 14:30:58,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-26 14:30:58,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428340303] [2024-10-26 14:30:58,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 14:30:58,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-26 14:30:58,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:30:58,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-26 14:30:58,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-26 14:30:58,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:58,236 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:30:58,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 14:30:58,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:58,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:30:58,675 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 14:30:58,873 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 14:30:58,873 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-26 14:30:58,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:30:58,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1204978803, now seen corresponding path program 1 times [2024-10-26 14:30:58,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:30:58,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645798346] [2024-10-26 14:30:58,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:30:58,874 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 14:30:58,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:30:58,875 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 14:30:58,876 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 14:30:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:30:58,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-26 14:30:58,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:30:58,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-26 14:30:58,953 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 14:30:58,953 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:30:58,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645798346] [2024-10-26 14:30:58,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645798346] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 14:30:58,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 14:30:58,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-26 14:30:58,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821418077] [2024-10-26 14:30:58,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 14:30:58,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-26 14:30:58,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:30:58,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-26 14:30:58,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-26 14:30:58,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:58,955 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:30:58,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14:30:58,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:30:58,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:59,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:30:59,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:59,050 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 (13)] Forceful destruction successful, exit code 0 [2024-10-26 14:30:59,245 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 14:30:59,246 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-26 14:30:59,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:30:59,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1867200092, now seen corresponding path program 1 times [2024-10-26 14:30:59,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:30:59,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207201065] [2024-10-26 14:30:59,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:30:59,248 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 14:30:59,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:30:59,251 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 14:30:59,252 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 14:30:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:30:59,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-26 14:30:59,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:30:59,370 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 14:30:59,401 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-10-26 14:30:59,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-10-26 14:30:59,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-26 14:30:59,426 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 14:30:59,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:30:59,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207201065] [2024-10-26 14:30:59,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207201065] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 14:30:59,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 14:30:59,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-26 14:30:59,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743129240] [2024-10-26 14:30:59,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 14:30:59,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-26 14:30:59,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:30:59,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-26 14:30:59,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-26 14:30:59,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:59,427 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:30:59,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14:30:59,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:30:59,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:59,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:30:59,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:30:59,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:30:59,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:30:59,829 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 14:31:00,026 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 14:31:00,026 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-26 14:31:00,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:31:00,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1867200091, now seen corresponding path program 1 times [2024-10-26 14:31:00,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:31:00,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617808479] [2024-10-26 14:31:00,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:31:00,027 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 14:31:00,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:31:00,028 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 14:31:00,029 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 14:31:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:31:00,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-26 14:31:00,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:31:00,128 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 14:31:00,135 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 14:31:00,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-26 14:31:00,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-26 14:31:00,259 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-26 14:31:00,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-26 14:31:00,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-26 14:31:00,377 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:31:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-26 14:31:01,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:31:01,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617808479] [2024-10-26 14:31:01,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617808479] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:31:01,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:31:01,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2024-10-26 14:31:01,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322573877] [2024-10-26 14:31:01,109 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:31:01,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-26 14:31:01,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:31:01,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-26 14:31:01,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-26 14:31:01,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:01,110 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:31:01,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-26 14:31:01,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:01,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:01,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:01,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:02,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:02,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:02,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:02,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:31:02,163 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 (15)] Ended with exit code 0 [2024-10-26 14:31:02,359 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 14:31:02,360 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-26 14:31:02,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:31:02,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1430331509, now seen corresponding path program 2 times [2024-10-26 14:31:02,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:31:02,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588296174] [2024-10-26 14:31:02,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-26 14:31:02,360 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 14:31:02,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:31:02,362 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 14:31:02,363 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 14:31:02,426 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-26 14:31:02,426 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:31:02,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-26 14:31:02,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:31:02,436 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 14:31:02,442 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 14:31:02,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-26 14:31:02,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-26 14:31:02,563 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-26 14:31:02,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-26 14:31:02,649 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-26 14:31:02,649 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 14:31:02,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:31:02,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588296174] [2024-10-26 14:31:02,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588296174] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 14:31:02,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 14:31:02,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-26 14:31:02,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341414354] [2024-10-26 14:31:02,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 14:31:02,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-26 14:31:02,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:31:02,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-26 14:31:02,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-26 14:31:02,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:02,651 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:31:02,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14:31:02,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:02,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:02,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:02,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:31:02,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:02,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:02,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:02,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:02,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:31:02,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:02,739 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 (16)] Forceful destruction successful, exit code 0 [2024-10-26 14:31:02,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 14:31:02,936 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-26 14:31:02,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:31:02,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1430331510, now seen corresponding path program 1 times [2024-10-26 14:31:02,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:31:02,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551790188] [2024-10-26 14:31:02,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:31:02,937 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 14:31:02,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:31:02,938 INFO L229 MonitoredProcess]: Starting monitored process 17 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 14:31:02,940 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 (17)] Waiting until timeout for monitored process [2024-10-26 14:31:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:31:03,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-26 14:31:03,018 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:31:03,022 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 14:31:03,049 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-26 14:31:03,049 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 14:31:03,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:31:03,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551790188] [2024-10-26 14:31:03,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551790188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 14:31:03,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 14:31:03,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-26 14:31:03,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212224860] [2024-10-26 14:31:03,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 14:31:03,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-26 14:31:03,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:31:03,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-26 14:31:03,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-26 14:31:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:03,052 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:31:03,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 14:31:03,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:03,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:03,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:03,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:31:03,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:03,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:03,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:03,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:03,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:03,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:31:03,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:03,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:03,427 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 (17)] Forceful destruction successful, exit code 0 [2024-10-26 14:31:03,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 14:31:03,624 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-26 14:31:03,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:31:03,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1430331511, now seen corresponding path program 1 times [2024-10-26 14:31:03,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:31:03,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254174985] [2024-10-26 14:31:03,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:31:03,624 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 14:31:03,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:31:03,625 INFO L229 MonitoredProcess]: Starting monitored process 18 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 14:31:03,626 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 (18)] Waiting until timeout for monitored process [2024-10-26 14:31:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:31:03,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-26 14:31:03,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:31:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-26 14:31:03,760 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 14:31:03,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:31:03,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254174985] [2024-10-26 14:31:03,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254174985] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 14:31:03,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 14:31:03,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-26 14:31:03,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836290431] [2024-10-26 14:31:03,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 14:31:03,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-26 14:31:03,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:31:03,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-26 14:31:03,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-26 14:31:03,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:03,761 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:31:03,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14:31:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:31:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:04,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:04,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:04,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:04,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:31:04,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:04,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:04,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:04,280 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 (18)] Forceful destruction successful, exit code 0 [2024-10-26 14:31:04,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 14:31:04,476 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-26 14:31:04,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:31:04,476 INFO L85 PathProgramCache]: Analyzing trace with hash 933646076, now seen corresponding path program 1 times [2024-10-26 14:31:04,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:31:04,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106598388] [2024-10-26 14:31:04,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:31:04,477 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 14:31:04,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:31:04,478 INFO L229 MonitoredProcess]: Starting monitored process 19 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 14:31:04,479 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 (19)] Waiting until timeout for monitored process [2024-10-26 14:31:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:31:04,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-26 14:31:04,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:31:04,658 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-26 14:31:04,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:31:04,725 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 11 treesize of output 9 [2024-10-26 14:31:04,858 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-26 14:31:04,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:31:04,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106598388] [2024-10-26 14:31:04,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106598388] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:31:04,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:31:04,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2024-10-26 14:31:04,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366310523] [2024-10-26 14:31:04,858 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:31:04,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-26 14:31:04,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:31:04,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-26 14:31:04,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-10-26 14:31:04,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:04,860 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:31:04,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 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 14:31:04,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:04,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:04,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:04,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:31:04,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:04,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:04,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:04,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:05,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:05,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:05,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:05,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:31:05,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:05,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:05,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:05,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:31:05,313 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 (19)] Forceful destruction successful, exit code 0 [2024-10-26 14:31:05,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 14:31:05,508 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-26 14:31:05,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:31:05,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1871944216, now seen corresponding path program 1 times [2024-10-26 14:31:05,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:31:05,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647975193] [2024-10-26 14:31:05,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 14:31:05,509 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 14:31:05,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:31:05,510 INFO L229 MonitoredProcess]: Starting monitored process 20 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 14:31:05,511 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 (20)] Waiting until timeout for monitored process [2024-10-26 14:31:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:31:05,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-26 14:31:05,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:31:05,653 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 14:31:06,136 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 25 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-26 14:31:06,136 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:31:07,193 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-26 14:31:07,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:31:07,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647975193] [2024-10-26 14:31:07,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647975193] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:31:07,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:31:07,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 17 [2024-10-26 14:31:07,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210219378] [2024-10-26 14:31:07,194 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:31:07,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-26 14:31:07,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:31:07,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-26 14:31:07,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-10-26 14:31:07,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:07,195 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:31:07,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.0) internal successors, (72), 17 states have internal predecessors, (72), 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 14:31:07,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:07,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:07,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:07,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:31:07,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:07,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:07,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:07,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:31:07,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:31:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:08,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:08,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:08,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:31:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-26 14:31:08,573 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 (20)] Forceful destruction successful, exit code 0 [2024-10-26 14:31:08,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 14:31:08,763 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-26 14:31:08,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:31:08,764 INFO L85 PathProgramCache]: Analyzing trace with hash 425772987, now seen corresponding path program 2 times [2024-10-26 14:31:08,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:31:08,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685324860] [2024-10-26 14:31:08,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-26 14:31:08,764 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 14:31:08,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:31:08,765 INFO L229 MonitoredProcess]: Starting monitored process 21 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 14:31:08,767 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 (21)] Waiting until timeout for monitored process [2024-10-26 14:31:08,911 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-26 14:31:08,911 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:31:08,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-26 14:31:08,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:31:08,944 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 14:31:09,443 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-26 14:31:09,443 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:31:11,150 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-26 14:31:11,150 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:31:11,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685324860] [2024-10-26 14:31:11,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685324860] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:31:11,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:31:11,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2024-10-26 14:31:11,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272910395] [2024-10-26 14:31:11,151 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:31:11,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-26 14:31:11,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:31:11,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-26 14:31:11,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2024-10-26 14:31:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:11,152 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:31:11,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.789473684210526) internal successors, (72), 19 states have internal predecessors, (72), 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 14:31:11,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:11,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:11,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:11,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:31:11,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:11,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:11,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:11,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:31:11,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-10-26 14:31:11,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:15,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-26 14:31:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:31:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:31:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-26 14:31:17,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:31:17,209 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 (21)] Forceful destruction successful, exit code 0 [2024-10-26 14:31:17,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 14:31:17,403 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-26 14:31:17,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:31:17,403 INFO L85 PathProgramCache]: Analyzing trace with hash 118395545, now seen corresponding path program 3 times [2024-10-26 14:31:17,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:31:17,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119065007] [2024-10-26 14:31:17,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-26 14:31:17,404 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 14:31:17,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:31:17,405 INFO L229 MonitoredProcess]: Starting monitored process 22 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 14:31:17,405 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 (22)] Waiting until timeout for monitored process [2024-10-26 14:31:18,060 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-10-26 14:31:18,060 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:31:18,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-26 14:31:18,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:31:18,082 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 14:31:19,959 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 162 proven. 64 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-10-26 14:31:19,959 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:31:36,525 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-10-26 14:31:36,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:31:36,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119065007] [2024-10-26 14:31:36,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119065007] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:31:36,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:31:36,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2024-10-26 14:31:36,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404618897] [2024-10-26 14:31:36,526 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:31:36,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-26 14:31:36,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:31:36,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-26 14:31:36,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=661, Unknown=4, NotChecked=0, Total=756 [2024-10-26 14:31:36,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:36,528 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:31:36,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.6666666666666665) internal successors, (99), 28 states have internal predecessors, (99), 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 14:31:36,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:36,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:36,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:36,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:31:36,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:36,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:36,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:36,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:31:36,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-10-26 14:31:36,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:31:36,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:31:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:31:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:31:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:31:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:31:56,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:31:56,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-26 14:31:56,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:31:56,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-26 14:31:56,528 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 (22)] Forceful destruction successful, exit code 0 [2024-10-26 14:31:56,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 14:31:56,718 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-26 14:31:56,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:31:56,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1146356614, now seen corresponding path program 4 times [2024-10-26 14:31:56,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:31:56,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459597068] [2024-10-26 14:31:56,719 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-26 14:31:56,719 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 14:31:56,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:31:56,720 INFO L229 MonitoredProcess]: Starting monitored process 23 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 14:31:56,722 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 (23)] Waiting until timeout for monitored process [2024-10-26 14:31:57,230 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-26 14:31:57,230 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:31:57,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-26 14:31:57,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:31:57,426 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 14:32:04,366 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-10-26 14:32:04,366 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:32:20,167 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-10-26 14:32:20,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:32:20,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459597068] [2024-10-26 14:32:20,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459597068] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:32:20,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:32:20,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 32 [2024-10-26 14:32:20,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639063828] [2024-10-26 14:32:20,168 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:32:20,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-26 14:32:20,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:32:20,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-26 14:32:20,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2024-10-26 14:32:20,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:32:20,171 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:32:20,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 4.363636363636363) internal successors, (144), 33 states have internal predecessors, (144), 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 14:32:20,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:32:20,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:32:20,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:32:20,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:32:20,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:32:20,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:32:20,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:32:20,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:32:20,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-10-26 14:32:20,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:32:20,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-26 14:32:20,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:32:46,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-26 14:32:48,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-26 14:32:50,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-26 14:32:59,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:33:06,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:33:12,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:33:16,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:33:20,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:33:23,822 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 [] [2024-10-26 14:33:28,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:33:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:33:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:33:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:33:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:33:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:33:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:33:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:33:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-26 14:33:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:33:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-26 14:33:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-10-26 14:33:28,531 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 (23)] Forceful destruction successful, exit code 0 [2024-10-26 14:33:28,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 14:33:28,721 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-26 14:33:28,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:33:28,721 INFO L85 PathProgramCache]: Analyzing trace with hash 381768758, now seen corresponding path program 5 times [2024-10-26 14:33:28,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:33:28,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457025802] [2024-10-26 14:33:28,722 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-26 14:33:28,722 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 14:33:28,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:33:28,723 INFO L229 MonitoredProcess]: Starting monitored process 24 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 14:33:28,724 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 (24)] Waiting until timeout for monitored process [2024-10-26 14:33:31,826 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-26 14:33:31,827 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:33:31,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-10-26 14:33:31,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:33:32,027 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 14:33:42,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 617 proven. 730 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-10-26 14:33:42,673 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:34:11,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 0 proven. 1455 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-26 14:34:11,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:34:11,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457025802] [2024-10-26 14:34:11,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457025802] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:34:11,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:34:11,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 31] total 55 [2024-10-26 14:34:11,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040160555] [2024-10-26 14:34:11,214 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:34:11,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-10-26 14:34:11,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:34:11,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-10-26 14:34:11,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=417, Invalid=2663, Unknown=0, NotChecked=0, Total=3080 [2024-10-26 14:34:11,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:34:11,217 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:34:11,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 4.857142857142857) internal successors, (272), 55 states have internal predecessors, (272), 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 14:34:11,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:34:11,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:34:11,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:34:11,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:34:11,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:34:11,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:34:11,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:34:11,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:34:11,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-10-26 14:34:11,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:34:11,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-26 14:34:11,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2024-10-26 14:34:11,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:34:34,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:34:34,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:34:34,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:34:34,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:34:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:34:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:34:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:34:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:34:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-26 14:34:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:34:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-26 14:34:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-10-26 14:34:34,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-26 14:34:34,831 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 (24)] Forceful destruction successful, exit code 0 [2024-10-26 14:34:35,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 14:34:35,017 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-26 14:34:35,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:34:35,017 INFO L85 PathProgramCache]: Analyzing trace with hash 887296861, now seen corresponding path program 6 times [2024-10-26 14:34:35,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:34:35,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675446176] [2024-10-26 14:34:35,018 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-26 14:34:35,018 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 14:34:35,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:34:35,019 INFO L229 MonitoredProcess]: Starting monitored process 25 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 14:34:35,024 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 (25)] Waiting until timeout for monitored process [2024-10-26 14:34:38,613 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 23 check-sat command(s) [2024-10-26 14:34:38,613 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 14:34:38,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-10-26 14:34:38,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:34:38,974 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 14:34:54,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1718 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-10-26 14:34:54,673 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 14:35:35,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1718 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-10-26 14:35:35,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 14:35:35,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675446176] [2024-10-26 14:35:35,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675446176] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 14:35:35,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 14:35:35,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 56 [2024-10-26 14:35:35,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506826910] [2024-10-26 14:35:35,670 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 14:35:35,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-10-26 14:35:35,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 14:35:35,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-10-26 14:35:35,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=779, Invalid=2527, Unknown=0, NotChecked=0, Total=3306 [2024-10-26 14:35:35,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:35:35,672 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 14:35:35,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 5.052631578947368) internal successors, (288), 57 states have internal predecessors, (288), 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 14:35:35,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:35:35,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:35:35,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:35:35,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:35:35,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:35:35,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:35:35,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:35:35,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:35:35,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-10-26 14:35:35,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:35:35,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-26 14:35:35,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2024-10-26 14:35:35,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-10-26 14:35:35,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 14:36:45,987 WARN L286 SmtUtils]: Spent 11.10s on a formula simplification. DAG size of input: 271 DAG size of output: 282 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:37:11,777 WARN L286 SmtUtils]: Spent 24.00s on a formula simplification. DAG size of input: 267 DAG size of output: 278 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:37:13,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-26 14:37:15,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-26 14:37:17,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-26 14:37:33,592 WARN L286 SmtUtils]: Spent 14.19s on a formula simplification that was a NOOP. DAG size: 243 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:37:56,630 WARN L286 SmtUtils]: Spent 21.70s on a formula simplification. DAG size of input: 238 DAG size of output: 238 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:37:58,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:38:00,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:38:13,028 WARN L286 SmtUtils]: Spent 10.59s on a formula simplification that was a NOOP. DAG size: 232 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:38:35,182 WARN L286 SmtUtils]: Spent 20.77s on a formula simplification. DAG size of input: 227 DAG size of output: 227 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:38:37,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:38:49,953 WARN L286 SmtUtils]: Spent 10.53s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:39:09,967 WARN L286 SmtUtils]: Spent 18.45s on a formula simplification. DAG size of input: 217 DAG size of output: 217 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:39:12,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:39:22,927 WARN L286 SmtUtils]: Spent 8.60s on a formula simplification that was a NOOP. DAG size: 211 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:39:40,416 WARN L286 SmtUtils]: Spent 15.89s on a formula simplification. DAG size of input: 206 DAG size of output: 206 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:39:43,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:39:50,466 WARN L286 SmtUtils]: Spent 5.55s on a formula simplification that was a NOOP. DAG size: 200 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:40:07,929 WARN L286 SmtUtils]: Spent 15.79s on a formula simplification. DAG size of input: 195 DAG size of output: 195 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:40:10,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:40:18,968 WARN L286 SmtUtils]: Spent 6.80s on a formula simplification that was a NOOP. DAG size: 189 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:40:31,774 WARN L286 SmtUtils]: Spent 11.22s on a formula simplification. DAG size of input: 184 DAG size of output: 184 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:40:34,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:40:42,214 WARN L286 SmtUtils]: Spent 6.27s on a formula simplification that was a NOOP. DAG size: 179 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:40:55,721 WARN L286 SmtUtils]: Spent 11.96s on a formula simplification. DAG size of input: 174 DAG size of output: 174 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:40:57,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:41:15,250 WARN L286 SmtUtils]: Spent 9.53s on a formula simplification. DAG size of input: 163 DAG size of output: 163 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:41:17,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:41:24,603 WARN L286 SmtUtils]: Spent 5.71s on a formula simplification that was a NOOP. DAG size: 157 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:41:33,380 WARN L286 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 152 DAG size of output: 152 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:41:35,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:41:47,250 WARN L286 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 141 DAG size of output: 141 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:41:49,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:42:00,406 WARN L286 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 131 DAG size of output: 131 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-26 14:42:02,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:42:14,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:42:24,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:42:34,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:42:42,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:42:49,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:42:54,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:42:59,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:43:03,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-26 14:43:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:43:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 14:43:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:43:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-26 14:43:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:43:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-26 14:43:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-26 14:43:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-26 14:43:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-26 14:43:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-26 14:43:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-26 14:43:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-10-26 14:43:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-26 14:43:08,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-10-26 14:43:08,162 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 (25)] Forceful destruction successful, exit code 0 [2024-10-26 14:43:08,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 14:43:08,338 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-26 14:43:08,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 14:43:08,339 INFO L85 PathProgramCache]: Analyzing trace with hash 995037397, now seen corresponding path program 7 times [2024-10-26 14:43:08,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 14:43:08,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757871569] [2024-10-26 14:43:08,340 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-26 14:43:08,340 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 14:43:08,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 14:43:08,341 INFO L229 MonitoredProcess]: Starting monitored process 26 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 14:43:08,342 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 (26)] Waiting until timeout for monitored process [2024-10-26 14:43:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 14:43:09,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 1465 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-10-26 14:43:09,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 14:43:09,502 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 14:43:36,215 INFO L134 CoverageAnalysis]: Checked inductivity of 6590 backedges. 2820 proven. 2996 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2024-10-26 14:43:36,215 INFO L311 TraceCheckSpWp]: Computing backward predicates... Killed by 15