./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 1c6ecf58df9dd6f4f380af0d7ef563f293bde5430d47e04b9ba5ac44168fc198 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:09:27,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:09:27,590 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2023-11-24 22:09:27,594 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:09:27,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:09:27,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:09:27,647 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:09:27,648 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:09:27,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:09:27,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:09:27,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:09:27,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:09:27,651 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:09:27,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:09:27,652 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:09:27,653 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:09:27,654 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:09:27,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:09:27,655 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:09:27,655 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:09:27,656 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 22:09:27,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:09:27,663 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:09:27,663 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:09:27,663 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:09:27,664 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:09:27,664 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:09:27,665 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:09:27,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 22:09:27,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:09:27,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:09:27,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:09:27,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:09:27,667 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 22:09:27,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:09:27,670 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:09:27,670 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-24 22:09:27,670 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 22:09:27,671 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 22:09:27,671 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 22:09:27,672 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_9ee34993-f3df-4cae-8d8a-16ac710f1839/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c6ecf58df9dd6f4f380af0d7ef563f293bde5430d47e04b9ba5ac44168fc198 [2023-11-24 22:09:28,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:09:28,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:09:28,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:09:28,081 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:09:28,081 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:09:28,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2023-11-24 22:09:31,387 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:09:31,651 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:09:31,651 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2023-11-24 22:09:31,661 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/data/cd41a61ed/17a6a39ba0a74a2fb1415d308dac82ab/FLAGfb2aee708 [2023-11-24 22:09:31,677 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/data/cd41a61ed/17a6a39ba0a74a2fb1415d308dac82ab [2023-11-24 22:09:31,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:09:31,680 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:09:31,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:09:31,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:09:31,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:09:31,692 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:09:31" (1/1) ... [2023-11-24 22:09:31,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5740133e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:31, skipping insertion in model container [2023-11-24 22:09:31,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:09:31" (1/1) ... [2023-11-24 22:09:31,743 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:09:31,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:09:31,981 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 22:09:31,981 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@8a85924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:31, skipping insertion in model container [2023-11-24 22:09:31,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:09:31,982 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 22:09:31,984 INFO L158 Benchmark]: Toolchain (without parser) took 302.35ms. Allocated memory is still 159.4MB. Free memory was 118.6MB in the beginning and 108.7MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 22:09:31,984 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 159.4MB. Free memory is still 131.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:09:31,985 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.78ms. Allocated memory is still 159.4MB. Free memory was 118.6MB in the beginning and 108.7MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 22:09:31,987 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 159.4MB. Free memory is still 131.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.78ms. Allocated memory is still 159.4MB. Free memory was 118.6MB in the beginning and 108.7MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 138]: 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 1c6ecf58df9dd6f4f380af0d7ef563f293bde5430d47e04b9ba5ac44168fc198 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:09:34,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:09:34,750 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2023-11-24 22:09:34,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:09:34,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:09:34,824 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:09:34,825 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:09:34,826 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:09:34,828 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:09:34,834 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:09:34,835 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:09:34,835 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:09:34,836 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:09:34,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:09:34,839 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:09:34,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:09:34,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:09:34,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:09:34,840 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:09:34,841 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:09:34,841 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 22:09:34,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:09:34,843 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:09:34,843 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:09:34,843 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:09:34,844 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:09:34,844 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:09:34,845 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:09:34,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:09:34,847 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:09:34,848 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 22:09:34,848 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:09:34,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:09:34,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:09:34,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:09:34,850 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 22:09:34,850 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:09:34,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:09:34,851 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-24 22:09:34,852 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 22:09:34,853 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 22:09:34,853 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 22:09:34,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:09:34,854 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_9ee34993-f3df-4cae-8d8a-16ac710f1839/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c6ecf58df9dd6f4f380af0d7ef563f293bde5430d47e04b9ba5ac44168fc198 [2023-11-24 22:09:35,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:09:35,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:09:35,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:09:35,352 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:09:35,352 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:09:35,355 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2023-11-24 22:09:38,681 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:09:39,039 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:09:39,040 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2023-11-24 22:09:39,050 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/data/33da431ba/e052337d79ad410597d216ba71374bb9/FLAG02059406a [2023-11-24 22:09:39,069 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/data/33da431ba/e052337d79ad410597d216ba71374bb9 [2023-11-24 22:09:39,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:09:39,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:09:39,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:09:39,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:09:39,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:09:39,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:09:39" (1/1) ... [2023-11-24 22:09:39,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc26c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:39, skipping insertion in model container [2023-11-24 22:09:39,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:09:39" (1/1) ... [2023-11-24 22:09:39,118 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:09:39,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:09:39,458 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 22:09:39,477 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:09:39,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:09:39,550 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:09:39,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:09:39,615 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:09:39,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:39 WrapperNode [2023-11-24 22:09:39,616 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:09:39,618 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:09:39,618 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:09:39,618 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:09:39,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:39" (1/1) ... [2023-11-24 22:09:39,679 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:39" (1/1) ... [2023-11-24 22:09:39,748 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 180 [2023-11-24 22:09:39,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:09:39,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:09:39,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:09:39,751 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:09:39,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:39" (1/1) ... [2023-11-24 22:09:39,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:39" (1/1) ... [2023-11-24 22:09:39,793 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:39" (1/1) ... [2023-11-24 22:09:39,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:39" (1/1) ... [2023-11-24 22:09:39,815 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:39" (1/1) ... [2023-11-24 22:09:39,838 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:39" (1/1) ... [2023-11-24 22:09:39,841 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:39" (1/1) ... [2023-11-24 22:09:39,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:39" (1/1) ... [2023-11-24 22:09:39,853 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:09:39,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:09:39,860 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:09:39,860 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:09:39,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:39" (1/1) ... [2023-11-24 22:09:39,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:09:39,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:09:39,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 22:09:39,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 22:09:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:09:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:09:39,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:09:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 22:09:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-24 22:09:39,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-24 22:09:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-24 22:09:39,975 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-24 22:09:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-24 22:09:39,977 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-24 22:09:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 22:09:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:09:39,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:09:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:09:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 22:09:39,981 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 22:09:40,223 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:09:40,229 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:09:41,300 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:09:41,898 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:09:41,899 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-24 22:09:41,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:09:41 BoogieIcfgContainer [2023-11-24 22:09:41,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:09:41,904 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 22:09:41,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 22:09:41,910 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 22:09:41,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 10:09:39" (1/3) ... [2023-11-24 22:09:41,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9ba28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:09:41, skipping insertion in model container [2023-11-24 22:09:41,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:09:39" (2/3) ... [2023-11-24 22:09:41,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9ba28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:09:41, skipping insertion in model container [2023-11-24 22:09:41,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:09:41" (3/3) ... [2023-11-24 22:09:41,916 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-subst.wvr.c [2023-11-24 22:09:41,940 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 22:09:41,941 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-11-24 22:09:41,941 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 22:09:42,104 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-24 22:09:42,179 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:09:42,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 22:09:42,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:09:42,189 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 22:09:42,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-24 22:09:42,272 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 22:09:42,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork0 ======== [2023-11-24 22:09:42,296 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;@fb7e1f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:09:42,296 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-24 22:09:42,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-24 22:09:42,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:09:42,982 INFO L85 PathProgramCache]: Analyzing trace with hash -723904357, now seen corresponding path program 1 times [2023-11-24 22:09:43,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:09:43,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696675160] [2023-11-24 22:09:43,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:09:43,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:09:43,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:09:43,019 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:43,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:09:43,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:09:43,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:09:43,285 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 22:09:43,358 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 22:09:43,358 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:09:43,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:09:43,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696675160] [2023-11-24 22:09:43,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696675160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:09:43,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:09:43,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:09:43,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682771764] [2023-11-24 22:09:43,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:09:43,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:09:43,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:09:43,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:09:43,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:09:43,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:43,409 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:09:43,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 22:09:43,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:43,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:43,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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)] Forceful destruction successful, exit code 0 [2023-11-24 22:09:44,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:44,008 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-24 22:09:44,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:09:44,009 INFO L85 PathProgramCache]: Analyzing trace with hash -723904356, now seen corresponding path program 1 times [2023-11-24 22:09:44,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:09:44,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129030195] [2023-11-24 22:09:44,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:09:44,010 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 22:09:44,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:09:44,012 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:44,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:09:44,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 22:09:44,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:09:44,308 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 22:09:44,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:09:44,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:09:44,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1129030195] [2023-11-24 22:09:44,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1129030195] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:09:44,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:09:44,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 22:09:44,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033300925] [2023-11-24 22:09:44,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:09:44,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 22:09:44,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:09:44,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 22:09:44,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:09:44,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:44,315 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:09:44,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 22:09:44,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:44,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:44,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:44,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:44,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:44,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:44,913 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-24 22:09:44,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:09:44,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1085026876, now seen corresponding path program 1 times [2023-11-24 22:09:44,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:09:44,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892132732] [2023-11-24 22:09:44,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:09:44,915 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 22:09:44,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:09:44,918 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:44,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:09:45,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:09:45,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:09:45,086 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 22:09:45,087 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:09:45,087 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:09:45,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892132732] [2023-11-24 22:09:45,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892132732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:09:45,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:09:45,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:09:45,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87497812] [2023-11-24 22:09:45,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:09:45,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:09:45,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:09:45,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:09:45,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:09:45,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:45,093 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:09:45,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 22:09:45,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:45,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:45,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:45,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:45,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:45,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:09:45,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:45,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:45,538 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-24 22:09:45,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:09:45,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1085026877, now seen corresponding path program 1 times [2023-11-24 22:09:45,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:09:45,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [764572818] [2023-11-24 22:09:45,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:09:45,539 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 22:09:45,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:09:45,542 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:45,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:09:45,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:09:45,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:09:45,806 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 22:09:45,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:09:45,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:09:45,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [764572818] [2023-11-24 22:09:45,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [764572818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:09:45,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:09:45,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 22:09:45,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526841797] [2023-11-24 22:09:45,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:09:45,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 22:09:45,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:09:45,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 22:09:45,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:09:45,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:45,813 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:09:45,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 22:09:45,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:45,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:45,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:09:45,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:46,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:46,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:46,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:09:46,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:46,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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)] Ended with exit code 0 [2023-11-24 22:09:46,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:46,557 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-24 22:09:46,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:09:46,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1408615491, now seen corresponding path program 1 times [2023-11-24 22:09:46,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:09:46,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940077711] [2023-11-24 22:09:46,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:09:46,570 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 22:09:46,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:09:46,573 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:46,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:09:46,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 22:09:46,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:09:46,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:09:46,915 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:09:47,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-11-24 22:09:47,364 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:09:47,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:09:47,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940077711] [2023-11-24 22:09:47,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940077711] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:09:47,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 22:09:47,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-24 22:09:47,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496748598] [2023-11-24 22:09:47,366 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 22:09:47,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 22:09:47,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:09:47,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 22:09:47,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-24 22:09:47,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:47,370 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:09:47,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:09:47,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:47,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:47,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:09:47,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:47,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:09:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:48,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:09:48,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:48,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:48,306 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-24 22:09:48,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:09:48,306 INFO L85 PathProgramCache]: Analyzing trace with hash -785844810, now seen corresponding path program 1 times [2023-11-24 22:09:48,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:09:48,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629907592] [2023-11-24 22:09:48,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:09:48,307 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 22:09:48,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:09:48,309 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:48,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:09:48,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 22:09:48,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:09:48,625 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:09:48,626 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:09:48,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-11-24 22:09:48,992 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:09:48,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:09:48,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629907592] [2023-11-24 22:09:48,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629907592] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:09:48,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 22:09:48,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2023-11-24 22:09:48,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402354810] [2023-11-24 22:09:48,993 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 22:09:48,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 22:09:48,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:09:48,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 22:09:48,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-24 22:09:48,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:48,996 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:09:48,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:09:48,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:48,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:48,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:09:48,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:48,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:09:48,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:50,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:50,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:50,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:09:50,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:50,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:09:50,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:09:50,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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)] Ended with exit code 0 [2023-11-24 22:09:50,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:50,512 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-24 22:09:50,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:09:50,513 INFO L85 PathProgramCache]: Analyzing trace with hash -2014244289, now seen corresponding path program 1 times [2023-11-24 22:09:50,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:09:50,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594341492] [2023-11-24 22:09:50,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:09:50,514 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 22:09:50,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:09:50,515 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:50,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:09:50,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:09:50,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:09:50,752 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 22:09:51,508 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:09:51,508 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:09:53,366 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:09:53,367 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:09:53,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594341492] [2023-11-24 22:09:53,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594341492] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:09:53,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 22:09:53,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2023-11-24 22:09:53,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655486908] [2023-11-24 22:09:53,367 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 22:09:53,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-24 22:09:53,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:09:53,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-24 22:09:53,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-11-24 22:09:53,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:53,370 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:09:53,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:09:53,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:53,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:53,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:09:53,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:53,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:09:53,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:09:53,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:55,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:55,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:09:55,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:55,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:09:55,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:09:55,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:09:55,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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)] Forceful destruction successful, exit code 0 [2023-11-24 22:09:55,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:55,850 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-24 22:09:55,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:09:55,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1974591949, now seen corresponding path program 1 times [2023-11-24 22:09:55,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:09:55,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532188432] [2023-11-24 22:09:55,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:09:55,853 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 22:09:55,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:09:55,854 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:55,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:09:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:09:56,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-24 22:09:56,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:09:56,127 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 22:09:56,953 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 15 proven. 25 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-24 22:09:56,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:09:59,407 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-24 22:09:59,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:09:59,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532188432] [2023-11-24 22:09:59,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532188432] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:09:59,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 22:09:59,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2023-11-24 22:09:59,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285952616] [2023-11-24 22:09:59,409 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 22:09:59,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-24 22:09:59,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:09:59,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-24 22:09:59,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2023-11-24 22:09:59,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:59,413 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:09:59,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 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 22:09:59,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:59,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:59,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:09:59,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:59,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:09:59,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:09:59,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:09:59,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:10:03,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:10:03,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:10:03,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:10:03,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:10:03,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:10:03,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:10:03,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:10:03,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:10:03,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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)] Forceful destruction successful, exit code 0 [2023-11-24 22:10:03,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:10:03,730 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-24 22:10:03,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:10:03,730 INFO L85 PathProgramCache]: Analyzing trace with hash -788413349, now seen corresponding path program 2 times [2023-11-24 22:10:03,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:10:03,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802021390] [2023-11-24 22:10:03,731 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 22:10:03,731 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 22:10:03,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:10:03,732 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:10:03,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 (11)] Waiting until timeout for monitored process [2023-11-24 22:10:04,135 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-24 22:10:04,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:10:04,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-24 22:10:04,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:10:04,174 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 22:10:04,932 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-24 22:10:04,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:10:07,393 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-24 22:10:07,394 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:10:07,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802021390] [2023-11-24 22:10:07,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802021390] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:10:07,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 22:10:07,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-24 22:10:07,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85363768] [2023-11-24 22:10:07,396 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 22:10:07,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-24 22:10:07,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:10:07,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-24 22:10:07,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2023-11-24 22:10:07,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:10:07,406 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:10:07,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 20 states have internal predecessors, (66), 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 22:10:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:10:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:10:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:10:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:10:07,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:10:07,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:10:07,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:10:07,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:10:07,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:10:19,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:10:19,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:10:19,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:10:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:10:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:10:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:10:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:10:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:10:19,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-24 22:10:19,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 (11)] Forceful destruction successful, exit code 0 [2023-11-24 22:10:19,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:10:19,721 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-24 22:10:19,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:10:19,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1219744561, now seen corresponding path program 3 times [2023-11-24 22:10:19,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:10:19,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194615977] [2023-11-24 22:10:19,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-24 22:10:19,723 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 22:10:19,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/bin/ugemcutter-verify-oI9GxRtH0S/mathsat [2023-11-24 22:10:19,725 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 22:10:19,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ee34993-f3df-4cae-8d8a-16ac710f1839/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 (12)] Waiting until timeout for monitored process [2023-11-24 22:10:20,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-24 22:10:20,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:10:20,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-24 22:10:20,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:10:20,693 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 13 treesize of output 7 [2023-11-24 22:10:20,700 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 11 treesize of output 7 [2023-11-24 22:10:20,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:20,730 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 22:10:20,740 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 22:10:20,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:20,754 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 22:10:20,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:20,767 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 22:10:20,777 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 22:10:20,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:20,788 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 22:10:20,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:20,804 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 22:10:20,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:20,831 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 22:10:20,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:20,861 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 22:10:20,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:20,919 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 22:10:20,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:20,946 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 22:10:20,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:20,965 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 22:10:20,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:21,000 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 22:10:21,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:21,023 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 22:10:21,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:21,046 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 22:10:21,063 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 22:10:21,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:21,077 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 22:10:21,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:21,091 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 22:10:21,102 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 22:10:21,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:21,115 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 22:10:21,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:21,130 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 22:10:21,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:21,173 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 22:10:21,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:21,199 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 22:10:21,210 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 22:10:21,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:21,222 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 22:10:21,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:21,242 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 22:10:21,252 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 22:10:21,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:21,265 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 22:10:21,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:21,278 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 22:10:21,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:10:21,635 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 21 treesize of output 14 [2023-11-24 22:10:21,683 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 22:10:21,684 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 22:10:21,933 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-24 22:10:21,933 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 21 treesize of output 25