./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing-deref.i --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/goblint-regression/28-race_reach_92-evilcollapse_racing-deref.i -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 dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-9a849f6-m [2024-10-26 11:31:53,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-26 11:31:53,471 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2024-10-26 11:31:53,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-26 11:31:53,478 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-26 11:31:53,498 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-26 11:31:53,499 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-26 11:31:53,500 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-26 11:31:53,500 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-26 11:31:53,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-26 11:31:53,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-26 11:31:53,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-26 11:31:53,502 INFO L153 SettingsManager]: * Use SBE=true [2024-10-26 11:31:53,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-26 11:31:53,505 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-26 11:31:53,505 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-26 11:31:53,505 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-26 11:31:53,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-26 11:31:53,505 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-26 11:31:53,505 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-26 11:31:53,506 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-26 11:31:53,506 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-26 11:31:53,506 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-26 11:31:53,506 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-26 11:31:53,506 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-26 11:31:53,507 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-26 11:31:53,507 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-26 11:31:53,507 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-26 11:31:53,507 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-26 11:31:53,507 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-26 11:31:53,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-26 11:31:53,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 11:31:53,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-26 11:31:53,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-26 11:31:53,508 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-26 11:31:53,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-26 11:31:53,508 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-26 11:31:53,508 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-26 11:31:53,508 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-26 11:31:53,508 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-26 11:31:53,508 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-26 11:31:53,510 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 [2024-10-26 11:31:53,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-26 11:31:53,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-26 11:31:53,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-26 11:31:53,710 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-26 11:31:53,710 INFO L274 PluginConnector]: CDTParser initialized [2024-10-26 11:31:53,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing-deref.i [2024-10-26 11:31:54,885 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-26 11:31:55,078 INFO L384 CDTParser]: Found 1 translation units. [2024-10-26 11:31:55,079 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing-deref.i [2024-10-26 11:31:55,092 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/013a9b27e/0e13044e9a594f8f80d0671d21088ef8/FLAG13304a485 [2024-10-26 11:31:55,103 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/013a9b27e/0e13044e9a594f8f80d0671d21088ef8 [2024-10-26 11:31:55,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-26 11:31:55,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-26 11:31:55,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-26 11:31:55,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-26 11:31:55,111 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-26 11:31:55,111 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:31:55" (1/1) ... [2024-10-26 11:31:55,112 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149fa716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:55, skipping insertion in model container [2024-10-26 11:31:55,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:31:55" (1/1) ... [2024-10-26 11:31:55,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-26 11:31:55,443 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:55,443 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:55,443 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:55,444 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:55,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 11:31:55,490 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 11:31:55,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3804dddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:55, skipping insertion in model container [2024-10-26 11:31:55,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-26 11:31:55,491 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-26 11:31:55,492 INFO L158 Benchmark]: Toolchain (without parser) took 385.63ms. Allocated memory is still 167.8MB. Free memory was 96.4MB in the beginning and 76.7MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-26 11:31:55,493 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory was 82.3MB in the beginning and 82.1MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-26 11:31:55,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.09ms. Allocated memory is still 167.8MB. Free memory was 96.2MB in the beginning and 76.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-26 11:31:55,494 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory was 82.3MB in the beginning and 82.1MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.09ms. Allocated memory is still 167.8MB. Free memory was 96.2MB in the beginning and 76.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1051]: 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/goblint-regression/28-race_reach_92-evilcollapse_racing-deref.i -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 dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-9a849f6-m [2024-10-26 11:31:57,006 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-26 11:31:57,062 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2024-10-26 11:31:57,067 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-26 11:31:57,067 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-26 11:31:57,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-26 11:31:57,092 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-26 11:31:57,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-26 11:31:57,094 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-26 11:31:57,095 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-26 11:31:57,095 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-26 11:31:57,096 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-26 11:31:57,096 INFO L153 SettingsManager]: * Use SBE=true [2024-10-26 11:31:57,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-26 11:31:57,098 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-26 11:31:57,098 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-26 11:31:57,099 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-26 11:31:57,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-26 11:31:57,101 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-26 11:31:57,101 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-26 11:31:57,101 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-26 11:31:57,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-26 11:31:57,102 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-26 11:31:57,102 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-26 11:31:57,102 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-26 11:31:57,102 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-26 11:31:57,103 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-26 11:31:57,103 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-26 11:31:57,103 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-26 11:31:57,103 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-26 11:31:57,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-26 11:31:57,104 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-26 11:31:57,104 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-26 11:31:57,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 11:31:57,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-26 11:31:57,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-26 11:31:57,104 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-26 11:31:57,105 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-26 11:31:57,105 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-26 11:31:57,105 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-26 11:31:57,106 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-26 11:31:57,106 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-26 11:31:57,106 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-26 11:31:57,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-26 11:31:57,107 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 [2024-10-26 11:31:57,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-26 11:31:57,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-26 11:31:57,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-26 11:31:57,370 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-26 11:31:57,371 INFO L274 PluginConnector]: CDTParser initialized [2024-10-26 11:31:57,372 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing-deref.i [2024-10-26 11:31:58,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-26 11:31:58,752 INFO L384 CDTParser]: Found 1 translation units. [2024-10-26 11:31:58,754 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing-deref.i [2024-10-26 11:31:58,768 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/355ee5a99/acd5370dd32c4449888610fd60f221a4/FLAGf5e0046ee [2024-10-26 11:31:59,080 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/355ee5a99/acd5370dd32c4449888610fd60f221a4 [2024-10-26 11:31:59,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-26 11:31:59,082 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-26 11:31:59,083 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-26 11:31:59,084 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-26 11:31:59,099 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-26 11:31:59,100 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:31:59" (1/1) ... [2024-10-26 11:31:59,100 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17cc2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:59, skipping insertion in model container [2024-10-26 11:31:59,101 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:31:59" (1/1) ... [2024-10-26 11:31:59,158 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-26 11:31:59,533 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:59,534 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:59,534 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:59,535 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:59,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 11:31:59,602 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-26 11:31:59,611 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-26 11:31:59,635 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:59,636 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:59,636 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:59,636 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:59,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 11:31:59,653 INFO L200 MainTranslator]: Completed pre-run [2024-10-26 11:31:59,673 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:59,674 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:59,674 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:59,674 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-26 11:31:59,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 11:31:59,753 INFO L204 MainTranslator]: Completed translation [2024-10-26 11:31:59,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:59 WrapperNode [2024-10-26 11:31:59,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-26 11:31:59,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-26 11:31:59,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-26 11:31:59,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-26 11:31:59,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:59" (1/1) ... [2024-10-26 11:31:59,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:59" (1/1) ... [2024-10-26 11:31:59,810 INFO L138 Inliner]: procedures = 284, calls = 126, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 303 [2024-10-26 11:31:59,814 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-26 11:31:59,815 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-26 11:31:59,815 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-26 11:31:59,815 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-26 11:31:59,821 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:59" (1/1) ... [2024-10-26 11:31:59,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:59" (1/1) ... [2024-10-26 11:31:59,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:59" (1/1) ... [2024-10-26 11:31:59,825 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:59" (1/1) ... [2024-10-26 11:31:59,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:59" (1/1) ... [2024-10-26 11:31:59,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:59" (1/1) ... [2024-10-26 11:31:59,856 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:59" (1/1) ... [2024-10-26 11:31:59,857 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:59" (1/1) ... [2024-10-26 11:31:59,860 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-26 11:31:59,861 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-26 11:31:59,861 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-26 11:31:59,861 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-26 11:31:59,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:59" (1/1) ... [2024-10-26 11:31:59,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 11:31:59,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 11:31:59,886 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 11:31:59,888 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 11:31:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-10-26 11:31:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-26 11:31:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-26 11:31:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-26 11:31:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-10-26 11:31:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-10-26 11:31:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-26 11:31:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-10-26 11:31:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-26 11:31:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-26 11:31:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-26 11:31:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-26 11:31:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-26 11:31:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-26 11:31:59,918 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-26 11:31:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-26 11:31:59,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-26 11:31:59,920 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 11:32:00,079 INFO L238 CfgBuilder]: Building ICFG [2024-10-26 11:32:00,080 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-26 11:32:00,758 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-26 11:32:00,758 INFO L287 CfgBuilder]: Performing block encoding [2024-10-26 11:32:01,732 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-26 11:32:01,733 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-26 11:32:01,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:32:01 BoogieIcfgContainer [2024-10-26 11:32:01,734 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-26 11:32:01,735 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-26 11:32:01,736 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-26 11:32:01,739 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-26 11:32:01,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:31:59" (1/3) ... [2024-10-26 11:32:01,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9024a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:32:01, skipping insertion in model container [2024-10-26 11:32:01,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:31:59" (2/3) ... [2024-10-26 11:32:01,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9024a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:32:01, skipping insertion in model container [2024-10-26 11:32:01,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:32:01" (3/3) ... [2024-10-26 11:32:01,741 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing-deref.i [2024-10-26 11:32:01,754 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-26 11:32:01,755 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2024-10-26 11:32:01,755 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-26 11:32:01,820 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-26 11:32:01,853 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 11:32:01,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-26 11:32:01,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 11:32:01,855 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 11:32:01,857 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 11:32:01,889 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-26 11:32:01,897 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2024-10-26 11:32:01,901 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;@52a97bb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 11:32:01,902 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-10-26 11:32:02,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 12 treesize of output 3 [2024-10-26 11:32:02,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 12 treesize of output 3 [2024-10-26 11:32:02,157 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-10-26 11:32:02,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 11:32:02,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1667927961, now seen corresponding path program 1 times [2024-10-26 11:32:02,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 11:32:02,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521738264] [2024-10-26 11:32:02,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 11:32:02,171 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 11:32:02,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 11:32:02,194 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 11:32:02,195 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 11:32:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 11:32:02,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-26 11:32:02,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 11:32:02,394 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 11:32:02,395 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 11:32:02,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 11:32:02,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521738264] [2024-10-26 11:32:02,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521738264] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 11:32:02,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 11:32:02,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-26 11:32:02,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041168082] [2024-10-26 11:32:02,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 11:32:02,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-26 11:32:02,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 11:32:02,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-26 11:32:02,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-26 11:32:02,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:02,446 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 11:32:02,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 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 11:32:02,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:02,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:02,600 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 11:32:02,794 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 11:32:02,794 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-10-26 11:32:02,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 11:32:02,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1209143868, now seen corresponding path program 1 times [2024-10-26 11:32:02,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 11:32:02,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070834023] [2024-10-26 11:32:02,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 11:32:02,796 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 11:32:02,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 11:32:02,798 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 11:32:02,799 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 11:32:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 11:32:02,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-26 11:32:02,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 11:32:02,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 11:32:02,937 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 11:32:02,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 11:32:02,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070834023] [2024-10-26 11:32:02,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070834023] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 11:32:02,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 11:32:02,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-26 11:32:02,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175079782] [2024-10-26 11:32:02,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 11:32:02,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-26 11:32:02,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 11:32:02,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-26 11:32:02,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-26 11:32:02,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:02,940 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 11:32:02,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 11:32:02,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:02,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:03,056 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 (4)] Forceful destruction successful, exit code 0 [2024-10-26 11:32:03,252 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 11:32:03,252 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-10-26 11:32:03,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 11:32:03,253 INFO L85 PathProgramCache]: Analyzing trace with hash 195926760, now seen corresponding path program 1 times [2024-10-26 11:32:03,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 11:32:03,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257386304] [2024-10-26 11:32:03,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 11:32:03,255 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 11:32:03,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 11:32:03,256 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 11:32:03,258 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 11:32:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 11:32:03,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-26 11:32:03,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 11:32:03,470 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 11:32:03,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 11:32:03,511 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 11:32:03,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 11:32:03,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257386304] [2024-10-26 11:32:03,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257386304] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 11:32:03,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 11:32:03,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-10-26 11:32:03,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094597730] [2024-10-26 11:32:03,513 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 11:32:03,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-26 11:32:03,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 11:32:03,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-26 11:32:03,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-26 11:32:03,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:03,514 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 11:32:03,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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 11:32:03,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:03,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:03,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:03,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:03,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:03,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:03,714 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 11:32:03,909 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 11:32:03,910 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-10-26 11:32:03,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 11:32:03,910 INFO L85 PathProgramCache]: Analyzing trace with hash 2027544260, now seen corresponding path program 2 times [2024-10-26 11:32:03,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 11:32:03,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12772336] [2024-10-26 11:32:03,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-26 11:32:03,911 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 11:32:03,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 11:32:03,914 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 11:32:03,915 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 11:32:04,300 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-26 11:32:04,301 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 11:32:04,305 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-26 11:32:04,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 11:32:04,343 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-10-26 11:32:04,344 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 11:32:04,356 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-10-26 11:32:04,356 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 11:32:04,356 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 11:32:04,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12772336] [2024-10-26 11:32:04,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12772336] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 11:32:04,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 11:32:04,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-26 11:32:04,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486838489] [2024-10-26 11:32:04,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 11:32:04,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-26 11:32:04,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 11:32:04,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-26 11:32:04,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-26 11:32:04,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:04,383 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 11:32:04,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) 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 11:32:04,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:04,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:04,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:04,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:04,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 12 treesize of output 3 [2024-10-26 11:32:04,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 12 treesize of output 3 [2024-10-26 11:32:04,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:04,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:04,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:04,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:04,550 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 11:32:04,745 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 11:32:04,745 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-10-26 11:32:04,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 11:32:04,746 INFO L85 PathProgramCache]: Analyzing trace with hash 2027544261, now seen corresponding path program 1 times [2024-10-26 11:32:04,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 11:32:04,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603127672] [2024-10-26 11:32:04,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 11:32:04,747 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 11:32:04,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 11:32:04,749 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 11:32:04,750 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 11:32:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 11:32:05,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-26 11:32:05,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 11:32:05,368 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 1 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 11:32:05,369 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 11:32:05,470 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 1 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-26 11:32:05,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 11:32:05,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603127672] [2024-10-26 11:32:05,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603127672] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 11:32:05,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 11:32:05,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-10-26 11:32:05,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185693996] [2024-10-26 11:32:05,472 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 11:32:05,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-26 11:32:05,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 11:32:05,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-26 11:32:05,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-10-26 11:32:05,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:05,474 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 11:32:05,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-26 11:32:05,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:05,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:05,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:05,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:05,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:05,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:05,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:05,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:05,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:05,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-26 11:32:06,006 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 11:32:06,195 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 11:32:06,195 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-10-26 11:32:06,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 11:32:06,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1011656635, now seen corresponding path program 2 times [2024-10-26 11:32:06,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 11:32:06,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536514663] [2024-10-26 11:32:06,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-26 11:32:06,197 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 11:32:06,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 11:32:06,198 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 11:32:06,199 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 11:32:08,601 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-26 11:32:08,601 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 11:32:08,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 1746 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-26 11:32:08,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 11:32:08,777 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2024-10-26 11:32:08,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 11:32:08,931 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2024-10-26 11:32:08,932 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 11:32:08,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536514663] [2024-10-26 11:32:08,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536514663] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 11:32:08,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 11:32:08,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-10-26 11:32:08,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932176557] [2024-10-26 11:32:08,933 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 11:32:08,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-26 11:32:08,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 11:32:08,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-26 11:32:08,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-26 11:32:08,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:08,935 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 11:32:08,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 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 11:32:08,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:08,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:08,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:08,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:08,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-26 11:32:08,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:09,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:09,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:09,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:09,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:09,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-26 11:32:09,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:09,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-10-26 11:32:09,304 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 11:32:09,305 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-10-26 11:32:09,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 11:32:09,305 INFO L85 PathProgramCache]: Analyzing trace with hash 2016648028, now seen corresponding path program 3 times [2024-10-26 11:32:09,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 11:32:09,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156284638] [2024-10-26 11:32:09,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-26 11:32:09,308 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 11:32:09,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 11:32:09,309 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 11:32:09,310 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 11:32:10,514 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-26 11:32:10,514 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 11:32:10,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-26 11:32:10,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 11:32:11,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-26 11:32:11,231 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 18 treesize of output 13 [2024-10-26 11:32:11,248 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-26 11:32:11,248 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 11:32:11,429 INFO L134 CoverageAnalysis]: Checked inductivity of 7208 backedges. 2828 proven. 0 refuted. 0 times theorem prover too weak. 4380 trivial. 0 not checked. [2024-10-26 11:32:11,429 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-26 11:32:11,429 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 11:32:11,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156284638] [2024-10-26 11:32:11,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156284638] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-26 11:32:11,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-26 11:32:11,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-26 11:32:11,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753891081] [2024-10-26 11:32:11,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-26 11:32:11,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-26 11:32:11,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 11:32:11,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-26 11:32:11,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-26 11:32:11,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:11,435 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 11:32:11,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 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 11:32:11,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:11,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:11,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:11,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:11,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-26 11:32:11,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:11,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:12,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 12 treesize of output 3 [2024-10-26 11:32:12,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 12 treesize of output 3 [2024-10-26 11:32:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-26 11:32:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-26 11:32:12,622 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 11:32:12,814 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 11:32:12,814 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-10-26 11:32:12,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 11:32:12,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1297170501, now seen corresponding path program 1 times [2024-10-26 11:32:12,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 11:32:12,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583577647] [2024-10-26 11:32:12,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 11:32:12,817 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 11:32:12,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 11:32:12,818 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 11:32:12,819 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 11:32:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-26 11:32:17,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 5895 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-26 11:32:17,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 11:32:17,814 INFO L134 CoverageAnalysis]: Checked inductivity of 7208 backedges. 2773 proven. 415 refuted. 0 times theorem prover too weak. 4020 trivial. 0 not checked. [2024-10-26 11:32:17,814 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 11:32:18,138 INFO L134 CoverageAnalysis]: Checked inductivity of 7208 backedges. 2773 proven. 415 refuted. 0 times theorem prover too weak. 4020 trivial. 0 not checked. [2024-10-26 11:32:18,139 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 11:32:18,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583577647] [2024-10-26 11:32:18,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583577647] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 11:32:18,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 11:32:18,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-10-26 11:32:18,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337743920] [2024-10-26 11:32:18,139 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 11:32:18,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-26 11:32:18,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 11:32:18,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-26 11:32:18,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2024-10-26 11:32:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:18,141 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 11:32:18,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 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 11:32:18,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:18,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:18,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:18,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:18,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-26 11:32:18,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:18,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-26 11:32:18,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-26 11:32:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-26 11:32:19,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-26 11:32:19,940 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 11:32:20,052 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 11:32:20,052 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-10-26 11:32:20,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 11:32:20,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1163383109, now seen corresponding path program 2 times [2024-10-26 11:32:20,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 11:32:20,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364737566] [2024-10-26 11:32:20,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-26 11:32:20,057 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 11:32:20,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 11:32:20,060 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-26 11:32:20,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-10-26 11:32:38,636 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-26 11:32:38,636 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-26 11:32:39,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 12327 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-26 11:32:39,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-26 11:32:39,513 INFO L134 CoverageAnalysis]: Checked inductivity of 34832 backedges. 13213 proven. 2101 refuted. 0 times theorem prover too weak. 19518 trivial. 0 not checked. [2024-10-26 11:32:39,514 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-26 11:32:40,437 INFO L134 CoverageAnalysis]: Checked inductivity of 34832 backedges. 13213 proven. 2101 refuted. 0 times theorem prover too weak. 19518 trivial. 0 not checked. [2024-10-26 11:32:40,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-26 11:32:40,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364737566] [2024-10-26 11:32:40,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364737566] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-26 11:32:40,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-26 11:32:40,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 48 [2024-10-26 11:32:40,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155961806] [2024-10-26 11:32:40,438 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-26 11:32:40,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-10-26 11:32:40,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-26 11:32:40,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-10-26 11:32:40,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=1754, Unknown=0, NotChecked=0, Total=2256 [2024-10-26 11:32:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:40,442 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-26 11:32:40,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 9.083333333333334) internal successors, (436), 48 states have internal predecessors, (436), 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 11:32:40,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:40,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:40,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:40,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:40,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-26 11:32:40,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:40,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-26 11:32:40,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-26 11:32:40,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-26 11:32:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-26 11:32:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-26 11:32:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-26 11:32:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-26 11:32:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-26 11:32:44,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-26 11:32:44,455 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 (11)] Ended with exit code 0 [2024-10-26 11:32:44,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-26 11:32:44,491 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-10-26 11:32:44,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 11:32:44,492 INFO L85 PathProgramCache]: Analyzing trace with hash 654706501, now seen corresponding path program 3 times [2024-10-26 11:32:44,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-26 11:32:44,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918275368] [2024-10-26 11:32:44,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-26 11:32:44,498 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 11:32:44,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-26 11:32:44,499 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 11:32:44,500 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 Killed by 15