./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-symm.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_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx --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 8a0558934008acf79b7e5b205fa256c568a1b783af274566f36b253458639325 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:16:34,518 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:16:34,584 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2023-12-02 20:16:34,589 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:16:34,590 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 20:16:34,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:16:34,616 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 20:16:34,616 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 20:16:34,617 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:16:34,617 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 20:16:34,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 20:16:34,619 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 20:16:34,619 INFO L153 SettingsManager]: * Use SBE=true [2023-12-02 20:16:34,620 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:16:34,620 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:16:34,621 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 20:16:34,621 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:16:34,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:16:34,622 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 20:16:34,623 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 20:16:34,623 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 20:16:34,624 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:16:34,624 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 20:16:34,625 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 20:16:34,625 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:16:34,625 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:16:34,626 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:16:34,626 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 20:16:34,627 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 20:16:34,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 20:16:34,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:16:34,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:16:34,629 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:16:34,629 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-02 20:16:34,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 20:16:34,630 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 20:16:34,630 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-12-02 20:16:34,630 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-12-02 20:16:34,630 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-12-02 20:16:34,631 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-12-02 20:16:34,631 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_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a0558934008acf79b7e5b205fa256c568a1b783af274566f36b253458639325 [2023-12-02 20:16:34,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:16:34,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:16:34,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:16:34,886 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:16:34,887 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:16:34,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2023-12-02 20:16:37,607 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:16:37,760 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:16:37,760 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2023-12-02 20:16:37,766 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/data/89300c190/d2eb3e728af744f0975879ed8d08293c/FLAG97a8f06cd [2023-12-02 20:16:37,778 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/data/89300c190/d2eb3e728af744f0975879ed8d08293c [2023-12-02 20:16:37,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:16:37,781 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:16:37,782 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:16:37,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:16:37,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:16:37,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:16:37" (1/1) ... [2023-12-02 20:16:37,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@375bfe93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:37, skipping insertion in model container [2023-12-02 20:16:37,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:16:37" (1/1) ... [2023-12-02 20:16:37,810 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:16:37,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:16:37,975 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) [2023-12-02 20:16:37,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@49ed6adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:37, skipping insertion in model container [2023-12-02 20:16:37,976 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:16:37,977 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-12-02 20:16:37,978 INFO L158 Benchmark]: Toolchain (without parser) took 195.93ms. Allocated memory is still 140.5MB. Free memory was 102.0MB in the beginning and 91.6MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 20:16:37,979 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 140.5MB. Free memory is still 111.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:16:37,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.25ms. Allocated memory is still 140.5MB. Free memory was 101.5MB in the beginning and 91.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 20:16:37,981 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 140.5MB. Free memory is still 111.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.25ms. Allocated memory is still 140.5MB. Free memory was 101.5MB in the beginning and 91.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 101]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx --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 8a0558934008acf79b7e5b205fa256c568a1b783af274566f36b253458639325 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:16:39,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:16:39,775 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2023-12-02 20:16:39,781 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:16:39,782 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 20:16:39,811 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:16:39,812 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 20:16:39,812 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 20:16:39,813 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:16:39,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 20:16:39,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 20:16:39,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 20:16:39,815 INFO L153 SettingsManager]: * Use SBE=true [2023-12-02 20:16:39,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:16:39,816 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:16:39,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 20:16:39,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:16:39,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:16:39,819 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 20:16:39,819 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 20:16:39,820 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 20:16:39,820 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:16:39,821 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 20:16:39,821 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 20:16:39,821 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 20:16:39,822 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 20:16:39,822 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:16:39,823 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:16:39,823 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:16:39,824 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 20:16:39,824 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 20:16:39,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 20:16:39,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:16:39,825 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:16:39,825 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:16:39,825 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-02 20:16:39,826 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 20:16:39,826 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 20:16:39,826 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-12-02 20:16:39,826 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-12-02 20:16:39,827 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-12-02 20:16:39,827 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-12-02 20:16:39,827 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 20:16:39,827 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_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a0558934008acf79b7e5b205fa256c568a1b783af274566f36b253458639325 [2023-12-02 20:16:40,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:16:40,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:16:40,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:16:40,164 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:16:40,164 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:16:40,166 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2023-12-02 20:16:42,941 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:16:43,147 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:16:43,148 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2023-12-02 20:16:43,155 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/data/640309acb/9074d3b76ea74f069a54b501f7a28932/FLAGe4c97af4c [2023-12-02 20:16:43,169 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/data/640309acb/9074d3b76ea74f069a54b501f7a28932 [2023-12-02 20:16:43,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:16:43,172 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:16:43,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:16:43,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:16:43,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:16:43,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:16:43" (1/1) ... [2023-12-02 20:16:43,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627b058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:43, skipping insertion in model container [2023-12-02 20:16:43,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:16:43" (1/1) ... [2023-12-02 20:16:43,201 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:16:43,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:16:43,379 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 20:16:43,384 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:16:43,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:16:43,411 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:16:43,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:16:43,458 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:16:43,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:43 WrapperNode [2023-12-02 20:16:43,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:16:43,459 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:16:43,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:16:43,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:16:43,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:43" (1/1) ... [2023-12-02 20:16:43,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:43" (1/1) ... [2023-12-02 20:16:43,508 INFO L138 Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 14, calls inlined = 18, statements flattened = 201 [2023-12-02 20:16:43,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:16:43,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:16:43,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:16:43,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:16:43,516 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:43" (1/1) ... [2023-12-02 20:16:43,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:43" (1/1) ... [2023-12-02 20:16:43,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:43" (1/1) ... [2023-12-02 20:16:43,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:43" (1/1) ... [2023-12-02 20:16:43,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:43" (1/1) ... [2023-12-02 20:16:43,540 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:43" (1/1) ... [2023-12-02 20:16:43,543 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:43" (1/1) ... [2023-12-02 20:16:43,546 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:43" (1/1) ... [2023-12-02 20:16:43,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:16:43,551 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:16:43,551 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:16:43,551 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:16:43,552 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:43" (1/1) ... [2023-12-02 20:16:43,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:16:43,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:16:43,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 20:16:43,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 20:16:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 20:16:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 20:16:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 20:16:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 20:16:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-02 20:16:43,641 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-02 20:16:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-02 20:16:43,642 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-02 20:16:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 20:16:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:16:43,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:16:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 20:16:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 20:16:43,645 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 20:16:43,766 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:16:43,768 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:16:44,353 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:16:44,640 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 20:16:44,640 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-02 20:16:44,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:44 BoogieIcfgContainer [2023-12-02 20:16:44,640 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 20:16:44,642 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 20:16:44,643 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 20:16:44,645 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 20:16:44,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:16:43" (1/3) ... [2023-12-02 20:16:44,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e005b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:16:44, skipping insertion in model container [2023-12-02 20:16:44,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:43" (2/3) ... [2023-12-02 20:16:44,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e005b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:16:44, skipping insertion in model container [2023-12-02 20:16:44,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:44" (3/3) ... [2023-12-02 20:16:44,648 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-symm.wvr.c [2023-12-02 20:16:44,663 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 20:16:44,663 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-12-02 20:16:44,664 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 20:16:44,736 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-02 20:16:44,771 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:16:44,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-12-02 20:16:44,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:16:44,775 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-12-02 20:16:44,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-12-02 20:16:44,823 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-12-02 20:16:44,836 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork1 ======== [2023-12-02 20:16:44,842 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;@13c53dd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:16:44,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-12-02 20:16:45,193 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:16:45,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:16:45,198 INFO L85 PathProgramCache]: Analyzing trace with hash 195234169, now seen corresponding path program 1 times [2023-12-02 20:16:45,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:16:45,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456656348] [2023-12-02 20:16:45,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:16:45,222 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 [2023-12-02 20:16:45,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:16:45,236 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:16:45,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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 [2023-12-02 20:16:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:16:45,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 20:16:45,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:16:45,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:16:45,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:16:45,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:16:45,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456656348] [2023-12-02 20:16:45,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456656348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:16:45,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:16:45,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:16:45,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003349530] [2023-12-02 20:16:45,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:16:45,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:16:45,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:16:45,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:16:45,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:16:45,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:45,449 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:16:45,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:16:45,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:45,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:16:45,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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 [2023-12-02 20:16:45,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:16:45,925 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:16:45,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:16:45,926 INFO L85 PathProgramCache]: Analyzing trace with hash 195234170, now seen corresponding path program 1 times [2023-12-02 20:16:45,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:16:45,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999552327] [2023-12-02 20:16:45,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:16:45,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:16:45,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:16:45,928 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:16:45,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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 [2023-12-02 20:16:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:16:46,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 20:16:46,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:16:46,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:16:46,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:16:46,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:16:46,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999552327] [2023-12-02 20:16:46,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999552327] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:16:46,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:16:46,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:16:46,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032154897] [2023-12-02 20:16:46,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:16:46,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 20:16:46,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:16:46,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 20:16:46,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-02 20:16:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:46,170 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:16:46,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:16:46,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:16:46,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:46,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:16:46,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:46,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-02 20:16:46,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:16:46,676 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:16:46,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:16:46,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1391771176, now seen corresponding path program 1 times [2023-12-02 20:16:46,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:16:46,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273350259] [2023-12-02 20:16:46,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:16:46,678 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 [2023-12-02 20:16:46,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:16:46,680 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:16:46,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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 [2023-12-02 20:16:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:16:46,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 20:16:46,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:16:46,798 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 [2023-12-02 20:16:46,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:16:46,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:16:46,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:16:46,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273350259] [2023-12-02 20:16:46,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273350259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:16:46,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:16:46,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 20:16:46,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844673764] [2023-12-02 20:16:46,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:16:46,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:16:46,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:16:46,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:16:46,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:16:46,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:46,839 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:16:46,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:16:46,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:16:46,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:46,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:47,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:16:47,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:47,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:16:47,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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)] Ended with exit code 0 [2023-12-02 20:16:47,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:16:47,258 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:16:47,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:16:47,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1391771177, now seen corresponding path program 1 times [2023-12-02 20:16:47,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:16:47,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983430413] [2023-12-02 20:16:47,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:16:47,260 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 [2023-12-02 20:16:47,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:16:47,261 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:16:47,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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 [2023-12-02 20:16:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:16:47,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 20:16:47,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:16:47,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:16:47,452 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:16:47,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:16:47,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983430413] [2023-12-02 20:16:47,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983430413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:16:47,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:16:47,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 20:16:47,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681365687] [2023-12-02 20:16:47,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:16:47,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 20:16:47,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:16:47,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 20:16:47,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-02 20:16:47,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:47,456 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:16:47,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:16:47,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:16:47,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:47,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:16:47,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:16:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:16:47,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:47,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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 [2023-12-02 20:16:48,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:16:48,004 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:16:48,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:16:48,005 INFO L85 PathProgramCache]: Analyzing trace with hash 710832448, now seen corresponding path program 1 times [2023-12-02 20:16:48,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:16:48,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146878756] [2023-12-02 20:16:48,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:16:48,006 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 [2023-12-02 20:16:48,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:16:48,007 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:16:48,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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 [2023-12-02 20:16:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:16:48,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 20:16:48,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:16:48,227 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:16:48,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:16:48,356 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 [2023-12-02 20:16:48,581 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:16:48,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:16:48,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146878756] [2023-12-02 20:16:48,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146878756] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:16:48,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:16:48,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2023-12-02 20:16:48,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435127622] [2023-12-02 20:16:48,583 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:16:48,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 20:16:48,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:16:48,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 20:16:48,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-02 20:16:48,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:48,586 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:16:48,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:16:48,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:16:48,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:48,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:16:48,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:48,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:16:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:16:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:49,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:16:49,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-02 20:16:49,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:16:49,317 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:16:49,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:16:49,318 INFO L85 PathProgramCache]: Analyzing trace with hash 854214051, now seen corresponding path program 1 times [2023-12-02 20:16:49,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:16:49,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350729396] [2023-12-02 20:16:49,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:16:49,319 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 [2023-12-02 20:16:49,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:16:49,320 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:16:49,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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 [2023-12-02 20:16:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:16:49,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 20:16:49,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:16:49,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:16:49,533 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:16:49,624 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 [2023-12-02 20:16:49,832 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:16:49,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:16:49,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350729396] [2023-12-02 20:16:49,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350729396] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:16:49,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:16:49,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-12-02 20:16:49,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351195072] [2023-12-02 20:16:49,833 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:16:49,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 20:16:49,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:16:49,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 20:16:49,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-02 20:16:49,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:49,836 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:16:49,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 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) [2023-12-02 20:16:49,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:16:49,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:49,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:16:49,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:49,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:16:49,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:50,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:16:50,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:50,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:16:50,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:50,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:16:50,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:16:50,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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 [2023-12-02 20:16:51,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:16:51,176 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:16:51,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:16:51,176 INFO L85 PathProgramCache]: Analyzing trace with hash -711819793, now seen corresponding path program 1 times [2023-12-02 20:16:51,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:16:51,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404738788] [2023-12-02 20:16:51,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:16:51,177 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 [2023-12-02 20:16:51,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:16:51,178 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:16:51,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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 [2023-12-02 20:16:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:16:51,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 20:16:51,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:16:51,307 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 [2023-12-02 20:16:51,812 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:16:51,812 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:16:53,025 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:16:53,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:16:53,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404738788] [2023-12-02 20:16:53,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [404738788] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:16:53,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:16:53,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2023-12-02 20:16:53,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674071734] [2023-12-02 20:16:53,027 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:16:53,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-02 20:16:53,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:16:53,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-02 20:16:53,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-12-02 20:16:53,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:53,029 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:16:53,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 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) [2023-12-02 20:16:53,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:16:53,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:53,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:16:53,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:53,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:16:53,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:16:53,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:54,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:16:54,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:54,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:16:54,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:54,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:16:54,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:16:54,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:16:54,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-02 20:16:54,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:16:54,503 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:16:54,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:16:54,503 INFO L85 PathProgramCache]: Analyzing trace with hash -59064401, now seen corresponding path program 1 times [2023-12-02 20:16:54,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:16:54,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837158278] [2023-12-02 20:16:54,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:16:54,504 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 [2023-12-02 20:16:54,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:16:54,505 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:16:54,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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 [2023-12-02 20:16:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:16:54,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 20:16:54,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:16:54,674 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 [2023-12-02 20:16:55,262 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 20:16:55,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:16:57,076 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 20:16:57,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:16:57,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837158278] [2023-12-02 20:16:57,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837158278] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:16:57,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:16:57,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2023-12-02 20:16:57,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164441816] [2023-12-02 20:16:57,077 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:16:57,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 20:16:57,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:16:57,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 20:16:57,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2023-12-02 20:16:57,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:57,080 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:16:57,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.25) internal successors, (65), 20 states have internal predecessors, (65), 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) [2023-12-02 20:16:57,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:16:57,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:57,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:16:57,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:57,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:16:57,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:16:57,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:16:57,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:16:59,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:16:59,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:59,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:16:59,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:16:59,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:16:59,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:16:59,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:16:59,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:16:59,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-02 20:16:59,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:16:59,358 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:16:59,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:16:59,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1906871663, now seen corresponding path program 2 times [2023-12-02 20:16:59,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:16:59,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450587325] [2023-12-02 20:16:59,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 20:16:59,359 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 [2023-12-02 20:16:59,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:16:59,360 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:16:59,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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 [2023-12-02 20:16:59,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 20:16:59,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:16:59,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 20:16:59,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:16:59,624 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 [2023-12-02 20:17:00,121 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 20:17:00,129 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:17:01,827 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 20:17:01,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:17:01,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450587325] [2023-12-02 20:17:01,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450587325] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:17:01,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:17:01,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-12-02 20:17:01,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180669888] [2023-12-02 20:17:01,828 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:17:01,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 20:17:01,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:17:01,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 20:17:01,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2023-12-02 20:17:01,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:17:01,831 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:17:01,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.210526315789474) internal successors, (61), 20 states have internal predecessors, (61), 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) [2023-12-02 20:17:01,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:17:01,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:17:01,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:17:01,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:17:01,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:17:01,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:17:01,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:17:01,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:17:01,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:17:11,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:17:11,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:17:11,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:17:11,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:17:11,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:17:11,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:17:11,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:17:11,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:17:11,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:17:11,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-12-02 20:17:11,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:17:11,290 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:17:11,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:17:11,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1397245515, now seen corresponding path program 3 times [2023-12-02 20:17:11,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:17:11,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659772089] [2023-12-02 20:17:11,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 20:17:11,292 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 [2023-12-02 20:17:11,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:17:11,292 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:17:11,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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 [2023-12-02 20:17:11,733 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-12-02 20:17:11,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:17:11,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 20:17:11,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:17:11,769 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 [2023-12-02 20:17:11,775 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 [2023-12-02 20:17:11,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:17:11,797 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 [2023-12-02 20:17:11,805 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 [2023-12-02 20:17:11,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:17:11,814 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 8 treesize of output 1 [2023-12-02 20:17:11,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:17:11,823 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 [2023-12-02 20:17:11,831 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 [2023-12-02 20:17:11,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:17:11,839 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 8 treesize of output 1 [2023-12-02 20:17:11,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:17:11,851 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 [2023-12-02 20:17:12,149 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 20:17:12,149 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 18 [2023-12-02 20:17:12,179 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-12-02 20:17:12,179 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 [2023-12-02 20:17:15,830 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 101 proven. 43 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-12-02 20:17:15,831 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:17:55,076 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 4 proven. 140 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-12-02 20:17:55,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:17:55,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659772089] [2023-12-02 20:17:55,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659772089] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:17:55,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:17:55,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 38 [2023-12-02 20:17:55,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595985809] [2023-12-02 20:17:55,077 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:17:55,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-02 20:17:55,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:17:55,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-02 20:17:55,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1367, Unknown=4, NotChecked=0, Total=1560 [2023-12-02 20:17:55,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:17:55,080 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:17:55,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.2051282051282053) internal successors, (86), 39 states have internal predecessors, (86), 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) [2023-12-02 20:17:55,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:17:55,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:17:55,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:17:55,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:17:55,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:17:55,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:17:55,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:17:55,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:17:55,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:17:55,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:55,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:18:55,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:18:55,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:18:55,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:18:55,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:18:55,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:18:55,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:18:55,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:18:55,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:18:55,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:18:55,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-02 20:18:55,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:18:55,398 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:18:55,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:18:55,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2078376363, now seen corresponding path program 4 times [2023-12-02 20:18:55,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:18:55,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875820590] [2023-12-02 20:18:55,399 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 20:18:55,400 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 [2023-12-02 20:18:55,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:18:55,400 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:18:55,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-02 20:18:55,685 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 20:18:55,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:18:55,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 20:18:55,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:18:55,718 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 [2023-12-02 20:18:58,097 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 93 proven. 130 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-02 20:18:58,097 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:19:05,219 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 20:19:05,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:19:05,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [875820590] [2023-12-02 20:19:05,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [875820590] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:19:05,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:19:05,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20] total 36 [2023-12-02 20:19:05,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137326425] [2023-12-02 20:19:05,220 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:19:05,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-02 20:19:05,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:19:05,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-02 20:19:05,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1094, Unknown=0, NotChecked=0, Total=1260 [2023-12-02 20:19:05,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:19:05,223 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:19:05,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.2777777777777777) internal successors, (118), 36 states have internal predecessors, (118), 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) [2023-12-02 20:19:05,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:19:05,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:19:05,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:19:05,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:19:05,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:19:05,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:19:05,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:19:05,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:19:05,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:19:05,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:19:05,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:19:12,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:19:12,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:19:12,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:19:12,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:19:12,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:19:12,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:19:12,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:19:12,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:19:12,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:19:12,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:19:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 20:19:12,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-02 20:19:12,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:19:12,860 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:19:12,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:19:12,861 INFO L85 PathProgramCache]: Analyzing trace with hash 289801675, now seen corresponding path program 5 times [2023-12-02 20:19:12,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:19:12,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750910504] [2023-12-02 20:19:12,861 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-02 20:19:12,861 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 [2023-12-02 20:19:12,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:19:12,862 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:19:12,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-02 20:19:14,279 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2023-12-02 20:19:14,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:19:14,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 20:19:14,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:19:14,334 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 [2023-12-02 20:19:18,328 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 39 proven. 235 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 20:19:18,329 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:19:31,396 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 274 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 20:19:31,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:19:31,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750910504] [2023-12-02 20:19:31,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [750910504] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:19:31,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:19:31,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 25] total 48 [2023-12-02 20:19:31,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507492092] [2023-12-02 20:19:31,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:19:31,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-12-02 20:19:31,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:19:31,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-12-02 20:19:31,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=1990, Unknown=0, NotChecked=0, Total=2256 [2023-12-02 20:19:31,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:19:31,400 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:19:31,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.8541666666666665) internal successors, (137), 48 states have internal predecessors, (137), 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) [2023-12-02 20:19:31,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:19:31,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:19:31,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:19:31,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:19:31,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:19:31,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:19:31,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:19:31,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:19:31,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:19:31,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:19:31,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-12-02 20:19:31,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:19:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:19:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:19:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:19:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:19:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:19:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:19:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:19:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:19:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:19:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:19:45,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 20:19:45,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 20:19:45,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-02 20:19:46,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:19:46,169 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:19:46,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:19:46,169 INFO L85 PathProgramCache]: Analyzing trace with hash -191940725, now seen corresponding path program 6 times [2023-12-02 20:19:46,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:19:46,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244528791] [2023-12-02 20:19:46,169 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-02 20:19:46,170 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 [2023-12-02 20:19:46,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:19:46,170 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:19:46,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-02 20:19:47,469 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2023-12-02 20:19:47,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:19:47,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 20:19:47,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:19:47,510 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 [2023-12-02 20:19:49,875 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-12-02 20:19:49,875 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:19:56,210 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-12-02 20:19:56,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:19:56,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244528791] [2023-12-02 20:19:56,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244528791] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:19:56,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:19:56,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2023-12-02 20:19:56,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664443159] [2023-12-02 20:19:56,210 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:19:56,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 20:19:56,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:19:56,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 20:19:56,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2023-12-02 20:19:56,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:19:56,212 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:19:56,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.5161290322580645) internal successors, (109), 32 states have internal predecessors, (109), 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) [2023-12-02 20:19:56,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:19:56,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:19:56,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:19:56,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:19:56,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:19:56,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:19:56,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:19:56,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:19:56,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:19:56,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:19:56,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-12-02 20:19:56,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-12-02 20:19:56,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:22:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:22:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:22:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:22:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:22:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:22:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:22:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:22:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:22:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:22:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:22:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 20:22:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 20:22:14,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-02 20:22:14,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-02 20:22:14,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:22:14,201 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:22:14,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:22:14,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1963348669, now seen corresponding path program 7 times [2023-12-02 20:22:14,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:22:14,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876938058] [2023-12-02 20:22:14,202 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 20:22:14,202 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 [2023-12-02 20:22:14,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:22:14,203 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:22:14,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-02 20:22:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:22:14,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-02 20:22:14,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:22:14,845 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 [2023-12-02 20:22:20,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 441 proven. 565 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-12-02 20:22:20,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:22:42,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1090 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-02 20:22:42,800 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:22:42,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876938058] [2023-12-02 20:22:42,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1876938058] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:22:42,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:22:42,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 37] total 66 [2023-12-02 20:22:42,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757237497] [2023-12-02 20:22:42,801 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:22:42,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2023-12-02 20:22:42,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:22:42,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2023-12-02 20:22:42,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=3820, Unknown=0, NotChecked=0, Total=4290 [2023-12-02 20:22:42,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:22:42,805 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:22:42,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 3.303030303030303) internal successors, (218), 66 states have internal predecessors, (218), 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) [2023-12-02 20:22:42,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:22:42,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:22:42,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:22:42,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:22:42,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:22:42,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:22:42,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:22:42,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:22:42,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:22:42,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:22:42,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-12-02 20:22:42,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-12-02 20:22:42,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2023-12-02 20:22:42,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:23:04,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:23:04,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:23:04,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:23:04,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:23:04,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:23:04,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:23:04,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:23:04,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:23:04,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:23:04,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:23:04,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 20:23:04,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 20:23:04,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-02 20:23:04,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:23:04,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-12-02 20:23:04,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:23:04,760 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:23:04,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:23:04,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1283519869, now seen corresponding path program 8 times [2023-12-02 20:23:04,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:23:04,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [492136380] [2023-12-02 20:23:04,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 20:23:04,761 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 [2023-12-02 20:23:04,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:23:04,762 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:23:04,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-02 20:23:05,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 20:23:05,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:23:05,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 53 conjunts are in the unsatisfiable core [2023-12-02 20:23:05,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:23:05,784 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 [2023-12-02 20:23:14,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1502 backedges. 237 proven. 997 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-12-02 20:23:14,088 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:23:48,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1502 backedges. 0 proven. 1246 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-12-02 20:23:48,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:23:48,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [492136380] [2023-12-02 20:23:48,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [492136380] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:23:48,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:23:48,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 44] total 84 [2023-12-02 20:23:48,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848624967] [2023-12-02 20:23:48,319 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:23:48,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2023-12-02 20:23:48,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:23:48,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2023-12-02 20:23:48,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=702, Invalid=6270, Unknown=0, NotChecked=0, Total=6972 [2023-12-02 20:23:48,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:23:48,324 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:23:48,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 3.0714285714285716) internal successors, (258), 84 states have internal predecessors, (258), 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) [2023-12-02 20:23:48,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:23:48,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:23:48,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:23:48,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:23:48,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:23:48,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:23:48,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:23:48,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:23:48,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:23:48,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:23:48,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-12-02 20:23:48,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-12-02 20:23:48,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2023-12-02 20:23:48,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:23:48,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:24:23,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:24:23,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:24:23,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:24:23,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:24:23,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:24:23,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:24:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:24:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:24:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:24:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:24:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 20:24:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 20:24:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-02 20:24:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:24:23,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:24:23,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-02 20:24:23,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 20:24:23,732 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 20:24:23,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:24:23,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1557505533, now seen corresponding path program 9 times [2023-12-02 20:24:23,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-02 20:24:23,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761094246] [2023-12-02 20:24:23,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 20:24:23,733 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 [2023-12-02 20:24:23,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat [2023-12-02 20:24:23,734 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -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) [2023-12-02 20:24:23,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3491fe81-236f-4c03-afc9-cc176e9e6ba0/bin/ugemcutter-verify-Bi2udmvEmx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-02 20:24:30,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2023-12-02 20:24:30,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:24:30,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 72 conjunts are in the unsatisfiable core [2023-12-02 20:24:30,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:24:30,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 20:24:30,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2023-12-02 20:24:30,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:24:30,754 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 [2023-12-02 20:24:30,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:24:30,773 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 [2023-12-02 20:24:30,785 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 [2023-12-02 20:24:30,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:24:30,802 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 8 treesize of output 1 [2023-12-02 20:24:30,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:24:30,819 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 [2023-12-02 20:24:30,830 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 [2023-12-02 20:24:30,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:24:30,846 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 8 treesize of output 1 [2023-12-02 20:24:33,830 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 20:24:33,830 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 [2023-12-02 20:24:33,903 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-12-02 20:24:33,904 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 [2023-12-02 20:24:50,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 65 proven. 822 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-12-02 20:24:50,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:27:47,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 0 proven. 887 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-12-02 20:27:47,516 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-02 20:27:47,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761094246] [2023-12-02 20:27:47,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761094246] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:27:47,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 20:27:47,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 92 [2023-12-02 20:27:47,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28378128] [2023-12-02 20:27:47,517 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 20:27:47,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2023-12-02 20:27:47,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-02 20:27:47,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2023-12-02 20:27:47,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=892, Invalid=7841, Unknown=9, NotChecked=0, Total=8742 [2023-12-02 20:27:47,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:27:47,523 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:27:47,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.10752688172043) internal successors, (196), 93 states have internal predecessors, (196), 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) [2023-12-02 20:27:47,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:27:47,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:27:47,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:27:47,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:27:47,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:27:47,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:27:47,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:27:47,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:27:47,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:27:47,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-12-02 20:27:47,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-12-02 20:27:47,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-12-02 20:27:47,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2023-12-02 20:27:47,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:27:47,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:27:47,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:29:05,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 20:29:44,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 20:30:10,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 20:30:59,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 20:31:02,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]