./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S --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 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:07:43,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:07:43,623 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2023-11-24 22:07:43,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:07:43,630 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:07:43,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:07:43,659 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:07:43,660 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:07:43,661 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:07:43,661 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:07:43,662 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:07:43,663 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:07:43,663 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:07:43,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:07:43,664 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:07:43,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:07:43,665 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:07:43,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:07:43,666 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:07:43,667 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:07:43,667 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 22:07:43,668 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:07:43,669 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:07:43,669 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:07:43,669 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:07:43,670 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:07:43,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:07:43,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:07:43,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 22:07:43,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:07:43,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:07:43,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:07:43,673 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:07:43,673 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 22:07:43,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:07:43,674 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:07:43,674 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-24 22:07:43,674 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 22:07:43,674 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 22:07:43,674 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 22:07:43,675 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 [2023-11-24 22:07:43,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:07:43,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:07:43,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:07:43,995 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:07:43,995 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:07:43,997 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2023-11-24 22:07:47,193 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:07:47,401 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:07:47,402 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2023-11-24 22:07:47,414 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/data/43dc8ee0e/ee74504aee7f41698afad73d0357c82e/FLAG85e7f2cdf [2023-11-24 22:07:47,430 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/data/43dc8ee0e/ee74504aee7f41698afad73d0357c82e [2023-11-24 22:07:47,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:07:47,434 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:07:47,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:07:47,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:07:47,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:07:47,456 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:07:47" (1/1) ... [2023-11-24 22:07:47,458 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fbd3c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:47, skipping insertion in model container [2023-11-24 22:07:47,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:07:47" (1/1) ... [2023-11-24 22:07:47,492 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:07:47,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:07:47,799 ERROR L324 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) [2023-11-24 22:07:47,799 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@312aa619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:47, skipping insertion in model container [2023-11-24 22:07:47,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:07:47,801 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 22:07:47,804 INFO L158 Benchmark]: Toolchain (without parser) took 368.12ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 53.6MB in the beginning and 155.1MB in the end (delta: -101.5MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-11-24 22:07:47,804 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 123.7MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:07:47,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.93ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 53.3MB in the beginning and 155.1MB in the end (delta: -101.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-11-24 22:07:47,809 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 123.7MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.93ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 53.3MB in the beginning and 155.1MB in the end (delta: -101.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 106]: 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: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S --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 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:07:50,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:07:50,561 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2023-11-24 22:07:50,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:07:50,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:07:50,629 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:07:50,630 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:07:50,631 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:07:50,632 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:07:50,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:07:50,638 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:07:50,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:07:50,639 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:07:50,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:07:50,641 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:07:50,642 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:07:50,642 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:07:50,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:07:50,643 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:07:50,644 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:07:50,644 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 22:07:50,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:07:50,645 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:07:50,646 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:07:50,646 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:07:50,646 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:07:50,647 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:07:50,647 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:07:50,648 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:07:50,649 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:07:50,650 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 22:07:50,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:07:50,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:07:50,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:07:50,652 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:07:50,652 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 22:07:50,652 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:07:50,653 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:07:50,653 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-24 22:07:50,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 22:07:50,654 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 22:07:50,655 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 22:07:50,655 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:07:50,655 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 [2023-11-24 22:07:51,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:07:51,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:07:51,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:07:51,083 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:07:51,084 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:07:51,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2023-11-24 22:07:54,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:07:54,631 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:07:54,632 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2023-11-24 22:07:54,645 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/data/ffcac1329/389df76d1522468f849dee36e04311a2/FLAG150e0cbb7 [2023-11-24 22:07:54,666 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/data/ffcac1329/389df76d1522468f849dee36e04311a2 [2023-11-24 22:07:54,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:07:54,674 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:07:54,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:07:54,678 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:07:54,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:07:54,686 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:07:54" (1/1) ... [2023-11-24 22:07:54,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70795c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:54, skipping insertion in model container [2023-11-24 22:07:54,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:07:54" (1/1) ... [2023-11-24 22:07:54,722 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:07:55,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:07:55,031 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 22:07:55,045 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:07:55,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:07:55,084 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:07:55,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:07:55,134 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:07:55,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:55 WrapperNode [2023-11-24 22:07:55,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:07:55,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:07:55,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:07:55,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:07:55,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:55" (1/1) ... [2023-11-24 22:07:55,158 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:55" (1/1) ... [2023-11-24 22:07:55,190 INFO L138 Inliner]: procedures = 27, calls = 47, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 202 [2023-11-24 22:07:55,191 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:07:55,192 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:07:55,192 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:07:55,192 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:07:55,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:55" (1/1) ... [2023-11-24 22:07:55,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:55" (1/1) ... [2023-11-24 22:07:55,209 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:55" (1/1) ... [2023-11-24 22:07:55,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:55" (1/1) ... [2023-11-24 22:07:55,263 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:55" (1/1) ... [2023-11-24 22:07:55,268 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:55" (1/1) ... [2023-11-24 22:07:55,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:55" (1/1) ... [2023-11-24 22:07:55,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:55" (1/1) ... [2023-11-24 22:07:55,278 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:07:55,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:07:55,304 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:07:55,304 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:07:55,305 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:55" (1/1) ... [2023-11-24 22:07:55,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:07:55,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:55,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 22:07:55,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 22:07:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:07:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:07:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:07:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 22:07:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-24 22:07:55,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-24 22:07:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-24 22:07:55,394 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-24 22:07:55,394 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-24 22:07:55,396 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-24 22:07:55,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 22:07:55,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:07:55,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:07:55,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:07:55,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 22:07:55,400 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 22:07:55,533 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:07:55,536 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:07:56,548 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:07:56,990 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:07:56,990 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-24 22:07:56,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:07:56 BoogieIcfgContainer [2023-11-24 22:07:56,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:07:56,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 22:07:56,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 22:07:56,999 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 22:07:56,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 10:07:54" (1/3) ... [2023-11-24 22:07:57,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78641a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:07:57, skipping insertion in model container [2023-11-24 22:07:57,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:55" (2/3) ... [2023-11-24 22:07:57,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78641a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:07:57, skipping insertion in model container [2023-11-24 22:07:57,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:07:56" (3/3) ... [2023-11-24 22:07:57,005 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2023-11-24 22:07:57,026 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 22:07:57,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-11-24 22:07:57,027 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 22:07:57,153 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-24 22:07:57,211 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:07:57,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 22:07:57,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:57,217 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 22:07:57,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-24 22:07:57,284 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 22:07:57,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork2 ======== [2023-11-24 22:07:57,305 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@cfb9d48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:07:57,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-24 22:07:57,697 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-11-24 22:07:57,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:57,702 INFO L85 PathProgramCache]: Analyzing trace with hash -511612121, now seen corresponding path program 1 times [2023-11-24 22:07:57,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:07:57,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937270443] [2023-11-24 22:07:57,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:57,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:57,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:07:57,771 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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) [2023-11-24 22:07:57,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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 [2023-11-24 22:07:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:57,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:07:57,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:57,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 22:07:58,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:58,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:58,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:07:58,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937270443] [2023-11-24 22:07:58,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937270443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:58,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:58,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:07:58,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316281935] [2023-11-24 22:07:58,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:58,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:07:58,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:07:58,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:07:58,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:07:58,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:58,085 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:58,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-24 22:07:58,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:58,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:07:58,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-24 22:07:58,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:07:58,668 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-11-24 22:07:58,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:58,669 INFO L85 PathProgramCache]: Analyzing trace with hash -511612120, now seen corresponding path program 1 times [2023-11-24 22:07:58,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:07:58,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659093786] [2023-11-24 22:07:58,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:58,670 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 [2023-11-24 22:07:58,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:07:58,671 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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) [2023-11-24 22:07:58,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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 [2023-11-24 22:07:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:58,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:07:58,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:58,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 22:07:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:59,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:59,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:07:59,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659093786] [2023-11-24 22:07:59,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659093786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:59,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:59,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 22:07:59,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015040493] [2023-11-24 22:07:59,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:59,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-24 22:07:59,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:07:59,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-24 22:07:59,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-24 22:07:59,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:59,314 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:59,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2023-11-24 22:07:59,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:07:59,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:00,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:00,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:00,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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 [2023-11-24 22:08:00,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:08:00,402 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-11-24 22:08:00,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:00,403 INFO L85 PathProgramCache]: Analyzing trace with hash 546975119, now seen corresponding path program 1 times [2023-11-24 22:08:00,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:08:00,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092035968] [2023-11-24 22:08:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:00,405 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 [2023-11-24 22:08:00,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:08:00,406 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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) [2023-11-24 22:08:00,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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 [2023-11-24 22:08:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:00,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-24 22:08:00,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:00,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 22:08:00,992 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:00,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:00,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:08:00,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092035968] [2023-11-24 22:08:00,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092035968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:00,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:00,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 22:08:00,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649303331] [2023-11-24 22:08:01,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:01,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 22:08:01,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:08:01,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 22:08:01,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-24 22:08:01,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:01,005 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:01,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:01,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:01,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:01,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:01,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:01,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:01,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:01,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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 [2023-11-24 22:08:01,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:08:01,737 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-11-24 22:08:01,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:01,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1717967772, now seen corresponding path program 1 times [2023-11-24 22:08:01,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:08:01,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995562613] [2023-11-24 22:08:01,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:01,739 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 [2023-11-24 22:08:01,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:08:01,740 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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) [2023-11-24 22:08:01,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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 [2023-11-24 22:08:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:01,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-24 22:08:01,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:02,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 22:08:02,696 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 22:08:02,696 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:03,905 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 22:08:03,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:08:03,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995562613] [2023-11-24 22:08:03,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995562613] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:03,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 22:08:03,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2023-11-24 22:08:03,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681973598] [2023-11-24 22:08:03,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:03,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-24 22:08:03,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:08:03,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-24 22:08:03,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-11-24 22:08:03,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:03,910 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:03,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 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) [2023-11-24 22:08:03,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:03,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:03,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:03,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:06,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:06,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:06,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:06,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:08:06,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:06,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:08:06,669 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-11-24 22:08:06,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:06,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1755869777, now seen corresponding path program 2 times [2023-11-24 22:08:06,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:08:06,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389495659] [2023-11-24 22:08:06,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 22:08:06,671 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 [2023-11-24 22:08:06,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:08:06,673 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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) [2023-11-24 22:08:06,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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 [2023-11-24 22:08:06,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-24 22:08:06,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:08:06,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-24 22:08:06,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:06,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 22:08:06,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 22:08:07,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:07,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-24 22:08:07,063 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 22:08:07,063 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 [2023-11-24 22:08:07,152 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2023-11-24 22:08:07,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 18 [2023-11-24 22:08:07,902 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-24 22:08:07,902 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:15,540 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:08:15,542 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-24 22:08:15,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:08:15,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389495659] [2023-11-24 22:08:15,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389495659] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:15,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 22:08:15,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-24 22:08:15,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176626197] [2023-11-24 22:08:15,544 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:15,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 22:08:15,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:08:15,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 22:08:15,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=105, Unknown=1, NotChecked=0, Total=132 [2023-11-24 22:08:15,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:15,547 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:15,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 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) [2023-11-24 22:08:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:15,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:15,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:15,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:08:15,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:17,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 22:08:20,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:20,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:20,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:20,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:08:20,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:20,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:20,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:08:20,986 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-11-24 22:08:20,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:20,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1580661588, now seen corresponding path program 1 times [2023-11-24 22:08:20,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:08:20,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349024595] [2023-11-24 22:08:20,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:20,988 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 [2023-11-24 22:08:20,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:08:20,990 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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) [2023-11-24 22:08:20,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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 [2023-11-24 22:08:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:21,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:08:21,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:21,303 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-24 22:08:21,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:21,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:08:21,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349024595] [2023-11-24 22:08:21,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349024595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:21,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:21,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:08:21,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984212833] [2023-11-24 22:08:21,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:21,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:21,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:08:21,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:21,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:08:21,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,307 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:21,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-11-24 22:08:21,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:21,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:21,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:21,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:08:21,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:21,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:21,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:21,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:21,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:08:21,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:21,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:21,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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 [2023-11-24 22:08:21,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:08:21,776 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-11-24 22:08:21,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:21,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1580661589, now seen corresponding path program 1 times [2023-11-24 22:08:21,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:08:21,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393107504] [2023-11-24 22:08:21,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:21,778 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 [2023-11-24 22:08:21,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:08:21,780 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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) [2023-11-24 22:08:21,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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 [2023-11-24 22:08:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:22,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-24 22:08:22,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:22,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 22:08:23,057 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:08:23,057 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:23,616 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-24 22:08:23,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:08:23,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393107504] [2023-11-24 22:08:23,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393107504] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:23,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 22:08:23,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 15 [2023-11-24 22:08:23,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097772997] [2023-11-24 22:08:23,618 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:23,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-24 22:08:23,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:08:23,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-24 22:08:23,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-11-24 22:08:23,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:23,621 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:23,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.933333333333333) internal successors, (59), 15 states have internal predecessors, (59), 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) [2023-11-24 22:08:23,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:23,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:23,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:23,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:08:23,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:23,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:25,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:25,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:25,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:08:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:25,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:25,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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 [2023-11-24 22:08:25,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:08:25,559 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-11-24 22:08:25,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:25,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1660312216, now seen corresponding path program 2 times [2023-11-24 22:08:25,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:08:25,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529916258] [2023-11-24 22:08:25,560 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 22:08:25,560 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 [2023-11-24 22:08:25,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:08:25,561 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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) [2023-11-24 22:08:25,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a2b4cd-cb38-4222-9cbe-f1eba3b6ad0b/bin/ugemcutter-verify-oI9GxRtH0S/mathsat -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 [2023-11-24 22:08:25,804 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-24 22:08:25,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:08:25,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-24 22:08:25,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:25,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-11-24 22:08:25,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2023-11-24 22:08:25,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:25,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-24 22:08:25,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:25,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-24 22:08:25,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 22:08:25,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:25,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-24 22:08:25,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:25,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-24 22:08:25,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 22:08:25,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:25,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-24 22:08:25,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:25,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-24 22:08:26,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-11-24 22:08:26,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-24 22:08:26,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-24 22:08:26,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-24 22:08:26,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-24 22:08:26,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-24 22:08:26,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-24 22:08:26,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-24 22:08:26,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 22:08:26,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-24 22:08:26,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-24 22:08:26,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 22:08:26,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-24 22:08:26,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-24 22:08:26,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-24 22:08:26,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-24 22:08:26,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 22:08:26,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-24 22:08:26,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-24 22:08:26,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-24 22:08:26,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-24 22:08:26,504 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2023-11-24 22:08:26,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 18 [2023-11-24 22:08:26,539 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-24 22:08:26,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-24 22:08:26,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,810 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-24 22:08:26,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 21 [2023-11-24 22:08:26,881 INFO L349 Elim1Store]: treesize reduction 58, result has 28.4 percent of original size [2023-11-24 22:08:26,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 36 [2023-11-24 22:08:27,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:27,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:27,137 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-24 22:08:27,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 28 [2023-11-24 22:08:27,197 INFO L349 Elim1Store]: treesize reduction 22, result has 29.0 percent of original size [2023-11-24 22:08:27,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2023-11-24 22:08:29,084 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-24 22:08:29,084 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:39,773 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (bvmul c_~N~0 (_ bv4 32)))) (and (forall ((|v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_307| (_ BitVec 32)) (|v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_306| (_ BitVec 32))) (let ((.cse0 (store |c_#valid| |v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_307| (_ bv1 1)))) (or (forall ((v_ArrVal_423 (_ BitVec 1)) (|v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_305| (_ BitVec 32)) (v_ArrVal_422 (_ BitVec 32))) (or (not (= (_ bv0 1) (select (store .cse0 |v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_306| v_ArrVal_423) |v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_305|))) (forall ((thread2Thread1of1ForFork2_~i~1 (_ BitVec 32))) (let ((.cse3 (bvmul thread2Thread1of1ForFork2_~i~1 (_ bv4 32)))) (let ((.cse2 (store (store (store |c_#length| |v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_307| .cse4) |v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_306| v_ArrVal_422) |v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_305| .cse4)) (.cse1 (bvadd (_ bv4 32) |c_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.offset| .cse3))) (or (not (bvule .cse1 (select .cse2 |c_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base|))) (bvule (bvadd (_ bv4 32) .cse3) (select .cse2 |v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_307|)) (not (bvule (bvadd |c_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.offset| .cse3) .cse1)))))))) (not (= (_ bv0 1) (select .cse0 |v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_306|)))))) (forall ((|v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_307| (_ BitVec 32)) (|v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_306| (_ BitVec 32))) (let ((.cse5 (store |c_#valid| |v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_307| (_ bv1 1)))) (or (forall ((v_ArrVal_423 (_ BitVec 1)) (|v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_305| (_ BitVec 32)) (v_ArrVal_422 (_ BitVec 32))) (or (not (= (_ bv0 1) (select (store .cse5 |v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_306| v_ArrVal_423) |v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_305|))) (forall ((thread2Thread1of1ForFork2_~i~1 (_ BitVec 32))) (let ((.cse6 (bvmul thread2Thread1of1ForFork2_~i~1 (_ bv4 32)))) (let ((.cse7 (bvadd (_ bv4 32) |c_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.offset| .cse6))) (or (bvule .cse6 (bvadd (_ bv4 32) .cse6)) (not (bvule .cse7 (select (store (store (store |c_#length| |v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_307| .cse4) |v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_306| v_ArrVal_422) |v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_305| .cse4) |c_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base|))) (not (bvule (bvadd |c_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.offset| .cse6) .cse7)))))))) (not (= (_ bv0 1) (select .cse5 |v_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base_306|)))))))) is different from false [2023-11-24 22:08:40,426 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-24 22:08:40,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:08:40,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529916258] [2023-11-24 22:08:40,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529916258] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:40,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 22:08:40,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2023-11-24 22:08:40,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725906093] [2023-11-24 22:08:40,427 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:40,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 22:08:40,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:08:40,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 22:08:40,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=84, Unknown=3, NotChecked=18, Total=132 [2023-11-24 22:08:40,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:40,429 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:40,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 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) [2023-11-24 22:08:40,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:40,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:40,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:40,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:08:40,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:40,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:40,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:40,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.