./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30e01a73 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_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB --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 f36f5593156fc25b34b4c706b0d898a2d66ee8bab5f6d91cd69ff9cf3c129193 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-22 09:01:07,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 09:01:07,215 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2023-11-22 09:01:07,221 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 09:01:07,221 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 09:01:07,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 09:01:07,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 09:01:07,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 09:01:07,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 09:01:07,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 09:01:07,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 09:01:07,250 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 09:01:07,251 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 09:01:07,251 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 09:01:07,252 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 09:01:07,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 09:01:07,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 09:01:07,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 09:01:07,254 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-22 09:01:07,254 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-22 09:01:07,255 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-22 09:01:07,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 09:01:07,256 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-22 09:01:07,256 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-22 09:01:07,257 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 09:01:07,257 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 09:01:07,257 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 09:01:07,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 09:01:07,258 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 09:01:07,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 09:01:07,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 09:01:07,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 09:01:07,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 09:01:07,260 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 09:01:07,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 09:01:07,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 09:01:07,261 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-22 09:01:07,261 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-22 09:01:07,261 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-22 09:01:07,262 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-22 09:01:07,262 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_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f36f5593156fc25b34b4c706b0d898a2d66ee8bab5f6d91cd69ff9cf3c129193 [2023-11-22 09:01:07,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 09:01:07,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 09:01:07,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 09:01:07,649 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 09:01:07,649 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 09:01:07,651 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2023-11-22 09:01:10,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 09:01:10,961 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 09:01:10,962 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2023-11-22 09:01:10,974 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/data/8760ec98b/e41e18bb154249398029ca8bbe39b946/FLAG720cec60b [2023-11-22 09:01:10,991 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/data/8760ec98b/e41e18bb154249398029ca8bbe39b946 [2023-11-22 09:01:10,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 09:01:10,995 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 09:01:10,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 09:01:10,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 09:01:11,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 09:01:11,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:01:10" (1/1) ... [2023-11-22 09:01:11,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e65b100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:11, skipping insertion in model container [2023-11-22 09:01:11,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:01:10" (1/1) ... [2023-11-22 09:01:11,034 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 09:01:11,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 09:01:11,318 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-22 09:01:11,319 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@18bad728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:11, skipping insertion in model container [2023-11-22 09:01:11,319 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 09:01:11,320 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-22 09:01:11,322 INFO L158 Benchmark]: Toolchain (without parser) took 325.77ms. Allocated memory is still 159.4MB. Free memory was 120.2MB in the beginning and 127.3MB in the end (delta: -7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-22 09:01:11,323 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 09:01:11,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.94ms. Allocated memory is still 159.4MB. Free memory was 119.8MB in the beginning and 127.3MB in the end (delta: -7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-22 09:01:11,329 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.94ms. Allocated memory is still 159.4MB. Free memory was 119.8MB in the beginning and 127.3MB in the end (delta: -7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 118]: 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_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB --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 f36f5593156fc25b34b4c706b0d898a2d66ee8bab5f6d91cd69ff9cf3c129193 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-22 09:01:13,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 09:01:14,028 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2023-11-22 09:01:14,038 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 09:01:14,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 09:01:14,088 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 09:01:14,089 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 09:01:14,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 09:01:14,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 09:01:14,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 09:01:14,097 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 09:01:14,098 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 09:01:14,098 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 09:01:14,104 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 09:01:14,104 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 09:01:14,105 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 09:01:14,105 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 09:01:14,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 09:01:14,106 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-22 09:01:14,107 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-22 09:01:14,107 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-22 09:01:14,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 09:01:14,108 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-22 09:01:14,109 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-22 09:01:14,109 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-22 09:01:14,109 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-22 09:01:14,110 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 09:01:14,110 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 09:01:14,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 09:01:14,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 09:01:14,113 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 09:01:14,114 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 09:01:14,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 09:01:14,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 09:01:14,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 09:01:14,115 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-22 09:01:14,116 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-22 09:01:14,116 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 09:01:14,116 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-22 09:01:14,117 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-22 09:01:14,118 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-22 09:01:14,118 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-22 09:01:14,118 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 09:01:14,119 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_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f36f5593156fc25b34b4c706b0d898a2d66ee8bab5f6d91cd69ff9cf3c129193 [2023-11-22 09:01:14,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 09:01:14,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 09:01:14,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 09:01:14,630 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 09:01:14,630 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 09:01:14,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2023-11-22 09:01:17,945 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 09:01:18,247 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 09:01:18,247 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2023-11-22 09:01:18,256 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/data/6c4207894/4a651695c77a419ea9faad3a8ff66fc3/FLAG46dd71d1b [2023-11-22 09:01:18,277 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/data/6c4207894/4a651695c77a419ea9faad3a8ff66fc3 [2023-11-22 09:01:18,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 09:01:18,290 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 09:01:18,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 09:01:18,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 09:01:18,302 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 09:01:18,302 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:01:18" (1/1) ... [2023-11-22 09:01:18,304 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37341de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:18, skipping insertion in model container [2023-11-22 09:01:18,304 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:01:18" (1/1) ... [2023-11-22 09:01:18,334 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 09:01:18,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 09:01:18,642 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-22 09:01:18,662 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 09:01:18,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 09:01:18,727 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 09:01:18,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 09:01:18,816 INFO L206 MainTranslator]: Completed translation [2023-11-22 09:01:18,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:18 WrapperNode [2023-11-22 09:01:18,817 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 09:01:18,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 09:01:18,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 09:01:18,820 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 09:01:18,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:18" (1/1) ... [2023-11-22 09:01:18,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:18" (1/1) ... [2023-11-22 09:01:18,920 INFO L138 Inliner]: procedures = 28, calls = 47, calls flagged for inlining = 17, calls inlined = 25, statements flattened = 278 [2023-11-22 09:01:18,920 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 09:01:18,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 09:01:18,925 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 09:01:18,925 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 09:01:18,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:18" (1/1) ... [2023-11-22 09:01:18,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:18" (1/1) ... [2023-11-22 09:01:18,951 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:18" (1/1) ... [2023-11-22 09:01:18,963 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:18" (1/1) ... [2023-11-22 09:01:18,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:18" (1/1) ... [2023-11-22 09:01:18,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:18" (1/1) ... [2023-11-22 09:01:19,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:18" (1/1) ... [2023-11-22 09:01:19,021 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:18" (1/1) ... [2023-11-22 09:01:19,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 09:01:19,027 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 09:01:19,028 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 09:01:19,028 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 09:01:19,029 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:18" (1/1) ... [2023-11-22 09:01:19,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 09:01:19,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/z3 [2023-11-22 09:01:19,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 09:01:19,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 09:01:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 09:01:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-22 09:01:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 09:01:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-22 09:01:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-22 09:01:19,163 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-22 09:01:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-22 09:01:19,163 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-22 09:01:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-22 09:01:19,166 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-22 09:01:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 09:01:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 09:01:19,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 09:01:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 09:01:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-22 09:01:19,170 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-22 09:01:19,346 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 09:01:19,348 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 09:01:20,291 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 09:01:20,821 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 09:01:20,822 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-22 09:01:20,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:01:20 BoogieIcfgContainer [2023-11-22 09:01:20,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 09:01:20,826 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 09:01:20,827 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 09:01:20,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 09:01:20,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:01:18" (1/3) ... [2023-11-22 09:01:20,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e9387ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:01:20, skipping insertion in model container [2023-11-22 09:01:20,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:18" (2/3) ... [2023-11-22 09:01:20,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e9387ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:01:20, skipping insertion in model container [2023-11-22 09:01:20,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:01:20" (3/3) ... [2023-11-22 09:01:20,838 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2023-11-22 09:01:20,862 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 09:01:20,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-22 09:01:20,863 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-22 09:01:20,998 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-22 09:01:21,044 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 09:01:21,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-22 09:01:21,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/z3 [2023-11-22 09:01:21,052 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-22 09:01:21,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-22 09:01:21,125 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-22 09:01:21,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork2 ======== [2023-11-22 09:01:21,147 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;@23ad1970, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 09:01:21,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-22 09:01:24,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:01:24,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:01:24,854 INFO L85 PathProgramCache]: Analyzing trace with hash 141027735, now seen corresponding path program 1 times [2023-11-22 09:01:24,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:01:24,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56190162] [2023-11-22 09:01:24,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:01:24,872 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:24,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:01:24,906 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 09:01:24,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-22 09:01:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:01:25,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-22 09:01:25,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:01:25,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 09:01:25,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 09:01:25,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:01:25,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [56190162] [2023-11-22 09:01:25,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [56190162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 09:01:25,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 09:01:25,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-22 09:01:25,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32786176] [2023-11-22 09:01:25,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 09:01:25,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 09:01:25,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:01:25,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 09:01:25,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 09:01:25,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:25,244 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:01:25,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:01:25,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:25,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:25,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-22 09:01:25,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:25,630 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:01:25,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:01:25,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1512364590, now seen corresponding path program 1 times [2023-11-22 09:01:25,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:01:25,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693883852] [2023-11-22 09:01:25,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:01:25,633 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:25,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:01:25,634 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 09:01:25,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-22 09:01:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:01:25,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-22 09:01:25,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:01:25,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-22 09:01:25,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:01:25,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-22 09:01:25,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:01:25,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693883852] [2023-11-22 09:01:25,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693883852] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:01:25,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:01:25,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-22 09:01:25,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894090818] [2023-11-22 09:01:25,942 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:01:25,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 09:01:25,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:01:25,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 09:01:25,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-22 09:01:25,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:25,946 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:01:25,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:01:25,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:25,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:26,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:26,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:26,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-22 09:01:26,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:26,596 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:01:26,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:01:26,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1022037107, now seen corresponding path program 2 times [2023-11-22 09:01:26,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:01:26,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350356201] [2023-11-22 09:01:26,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 09:01:26,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:26,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:01:26,602 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 09:01:26,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-22 09:01:26,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-22 09:01:26,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 09:01:26,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-22 09:01:26,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:01:26,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-22 09:01:26,952 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-22 09:01:26,953 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 09:01:26,953 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:01:26,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350356201] [2023-11-22 09:01:26,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350356201] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 09:01:26,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 09:01:26,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 09:01:26,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518409142] [2023-11-22 09:01:26,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 09:01:26,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 09:01:26,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:01:26,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 09:01:26,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 09:01:26,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:26,967 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:01:26,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:01:26,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:26,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:26,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:28,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:28,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-22 09:01:28,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:28,532 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:01:28,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:01:28,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1022037108, now seen corresponding path program 1 times [2023-11-22 09:01:28,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:01:28,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935611307] [2023-11-22 09:01:28,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:01:28,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:28,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:01:28,537 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 09:01:28,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-22 09:01:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:01:28,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-22 09:01:28,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:01:28,994 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-22 09:01:28,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:01:29,230 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-22 09:01:29,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:01:29,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935611307] [2023-11-22 09:01:29,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935611307] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:01:29,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:01:29,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-22 09:01:29,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261730266] [2023-11-22 09:01:29,232 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:01:29,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 09:01:29,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:01:29,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 09:01:29,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-22 09:01:29,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:29,235 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:01:29,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 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) [2023-11-22 09:01:29,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:29,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:29,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:29,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:29,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:29,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:29,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:29,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:29,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-22 09:01:30,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:30,093 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:01:30,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:01:30,094 INFO L85 PathProgramCache]: Analyzing trace with hash 423741451, now seen corresponding path program 2 times [2023-11-22 09:01:30,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:01:30,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015394056] [2023-11-22 09:01:30,095 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 09:01:30,096 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:30,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:01:30,097 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 09:01:30,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-22 09:01:30,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-22 09:01:30,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 09:01:30,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-22 09:01:30,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:01:30,350 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 5 [2023-11-22 09:01:30,534 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-22 09:01:30,534 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 09:01:30,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:01:30,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015394056] [2023-11-22 09:01:30,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015394056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 09:01:30,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 09:01:30,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 09:01:30,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621824071] [2023-11-22 09:01:30,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 09:01:30,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 09:01:30,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:01:30,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 09:01:30,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-22 09:01:30,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:30,542 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:01:30,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:01:30,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:30,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:30,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:30,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:30,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:32,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:32,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:32,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:32,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:01:32,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-22 09:01:32,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:32,892 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:01:32,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:01:32,892 INFO L85 PathProgramCache]: Analyzing trace with hash 773628209, now seen corresponding path program 1 times [2023-11-22 09:01:32,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:01:32,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006046741] [2023-11-22 09:01:32,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:01:32,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:32,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:01:32,899 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 09:01:32,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-22 09:01:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:01:33,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-22 09:01:33,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:01:33,317 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 5 [2023-11-22 09:01:33,563 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-22 09:01:33,563 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:01:34,008 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-22 09:01:34,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:01:34,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006046741] [2023-11-22 09:01:34,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006046741] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:01:34,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:01:34,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-22 09:01:34,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102020070] [2023-11-22 09:01:34,013 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:01:34,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 09:01:34,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:01:34,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 09:01:34,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-22 09:01:34,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:34,018 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:01:34,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 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) [2023-11-22 09:01:34,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:34,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:34,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:34,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:34,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:01:34,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:34,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:34,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:34,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:34,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:34,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:01:34,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:34,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-22 09:01:35,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:35,004 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:01:35,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:01:35,005 INFO L85 PathProgramCache]: Analyzing trace with hash -441883509, now seen corresponding path program 2 times [2023-11-22 09:01:35,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:01:35,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507630937] [2023-11-22 09:01:35,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 09:01:35,006 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 [2023-11-22 09:01:35,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:01:35,007 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 09:01:35,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-22 09:01:35,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-22 09:01:35,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 09:01:35,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-22 09:01:35,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:01:35,248 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 5 [2023-11-22 09:01:35,363 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-11-22 09:01:35,364 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 12 treesize of output 14 [2023-11-22 09:01:35,958 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-22 09:01:35,959 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:01:40,899 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_264| (_ BitVec 32)) (|thread2Thread1of1ForFork2_~i~1#1| (_ BitVec 32))) (let ((.cse0 (bvmul (_ bv4 32) |thread2Thread1of1ForFork2_~i~1#1|))) (let ((.cse1 (bvadd |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| .cse0 (_ bv4 32)))) (or (bvule .cse0 (bvadd .cse0 (_ bv4 32))) (not (bvule (bvadd |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| .cse0) .cse1)) (not (bvule .cse1 (select (store |c_#length| |v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_264| (_ bv20 32)) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))))))) (forall ((|v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_264| (_ BitVec 32)) (|thread2Thread1of1ForFork2_~i~1#1| (_ BitVec 32))) (let ((.cse2 (bvmul (_ bv4 32) |thread2Thread1of1ForFork2_~i~1#1|))) (let ((.cse3 (bvadd |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| .cse2 (_ bv4 32)))) (or (not (bvule (bvadd |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| .cse2) .cse3)) (bvule (bvadd .cse2 (_ bv4 32)) (_ bv20 32)) (not (bvule .cse3 (select (store |c_#length| |v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_264| (_ bv20 32)) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|)))))))) is different from false [2023-11-22 09:01:41,810 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-22 09:01:41,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:01:41,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507630937] [2023-11-22 09:01:41,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507630937] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:01:41,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:01:41,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-22 09:01:41,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262182306] [2023-11-22 09:01:41,812 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:01:41,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 09:01:41,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:01:41,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 09:01:41,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=54, Unknown=1, NotChecked=14, Total=90 [2023-11-22 09:01:41,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:41,815 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:01:41,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:01:41,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:41,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:41,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:41,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:41,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:01:41,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:41,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:44,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:44,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:01:44,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:44,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 09:01:44,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-22 09:01:44,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:44,635 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:01:44,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:01:44,636 INFO L85 PathProgramCache]: Analyzing trace with hash 678482325, now seen corresponding path program 1 times [2023-11-22 09:01:44,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:01:44,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731845943] [2023-11-22 09:01:44,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:01:44,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:44,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:01:44,639 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 09:01:44,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-22 09:01:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:01:45,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-22 09:01:45,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:01:45,188 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-22 09:01:45,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 09:01:45,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:01:45,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731845943] [2023-11-22 09:01:45,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731845943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 09:01:45,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 09:01:45,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-22 09:01:45,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196601303] [2023-11-22 09:01:45,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 09:01:45,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 09:01:45,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:01:45,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 09:01:45,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 09:01:45,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:45,193 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:01:45,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:01:45,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:45,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:45,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:45,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:45,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:01:45,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:45,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-22 09:01:45,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:45,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:45,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:45,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:45,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:45,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:01:45,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:45,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 09:01:45,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:45,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-22 09:01:45,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:45,637 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:01:45,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:01:45,638 INFO L85 PathProgramCache]: Analyzing trace with hash 678482326, now seen corresponding path program 1 times [2023-11-22 09:01:45,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:01:45,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228194597] [2023-11-22 09:01:45,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:01:45,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:45,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:01:45,640 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 09:01:45,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-22 09:01:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:01:46,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-22 09:01:46,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:01:46,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-22 09:01:46,325 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 5 [2023-11-22 09:01:46,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:01:46,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-22 09:01:46,604 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-22 09:01:46,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-22 09:01:47,194 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-22 09:01:47,194 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:01:48,884 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-22 09:01:48,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:01:48,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228194597] [2023-11-22 09:01:48,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228194597] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:01:48,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:01:48,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-22 09:01:48,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591442970] [2023-11-22 09:01:48,885 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:01:48,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-22 09:01:48,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:01:48,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-22 09:01:48,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-11-22 09:01:48,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:48,889 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:01:48,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.8) internal successors, (57), 16 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:01:48,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:48,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:48,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:48,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:48,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:01:48,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:48,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-22 09:01:48,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:48,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:50,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:50,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:50,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:50,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:01:50,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:50,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 09:01:50,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:50,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-22 09:01:50,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-22 09:01:51,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:51,190 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:01:51,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:01:51,191 INFO L85 PathProgramCache]: Analyzing trace with hash 551740592, now seen corresponding path program 2 times [2023-11-22 09:01:51,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:01:51,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131088841] [2023-11-22 09:01:51,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 09:01:51,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:51,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:01:51,193 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 09:01:51,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-22 09:01:51,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 09:01:51,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 09:01:51,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-22 09:01:51,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:01:51,765 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 5 [2023-11-22 09:01:51,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-22 09:01:51,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 09:01:51,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-22 09:01:52,013 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-22 09:01:52,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-22 09:01:52,750 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 5 proven. 35 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-22 09:01:52,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:01:53,999 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-22 09:01:53,999 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:01:53,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131088841] [2023-11-22 09:01:54,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131088841] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:01:54,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:01:54,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2023-11-22 09:01:54,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703719979] [2023-11-22 09:01:54,000 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:01:54,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-22 09:01:54,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:01:54,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-22 09:01:54,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-11-22 09:01:54,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:54,004 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:01:54,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:01:54,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:54,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:54,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:54,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:54,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:01:54,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:54,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-22 09:01:54,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:54,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-22 09:01:54,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:55,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:55,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:55,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:55,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:55,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:01:55,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:55,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 09:01:55,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:55,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-22 09:01:55,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-22 09:01:55,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-22 09:01:55,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:55,988 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:01:55,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:01:55,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1233256939, now seen corresponding path program 1 times [2023-11-22 09:01:55,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:01:55,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658922432] [2023-11-22 09:01:55,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:01:55,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:55,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:01:55,989 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 09:01:55,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -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 [2023-11-22 09:01:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:01:56,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-22 09:01:56,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:01:56,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-22 09:01:56,544 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-11-22 09:01:56,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2023-11-22 09:01:56,654 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-22 09:01:56,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 09:01:56,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:01:56,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658922432] [2023-11-22 09:01:56,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658922432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 09:01:56,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 09:01:56,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 09:01:56,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743315668] [2023-11-22 09:01:56,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 09:01:56,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 09:01:56,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:01:56,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 09:01:56,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 09:01:56,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:56,658 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:01:56,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:01:56,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:56,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:56,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:56,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:56,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:01:56,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:56,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-22 09:01:56,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:56,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-22 09:01:56,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-22 09:01:56,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:01:58,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:58,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:01:58,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 09:01:58,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:58,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:01:58,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 09:01:58,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 09:01:58,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:01:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-22 09:01:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-22 09:01:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 09:01:58,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 4 remaining) [2023-11-22 09:01:58,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 4 remaining) [2023-11-22 09:01:58,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 4 remaining) [2023-11-22 09:01:58,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 4 remaining) [2023-11-22 09:01:58,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-22 09:01:58,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:01:58,808 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1] [2023-11-22 09:01:58,810 INFO L307 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork2 was SAFE,SAFE,SAFE,SAFE (1/4) [2023-11-22 09:01:58,814 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 09:01:58,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-22 09:01:58,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/z3 [2023-11-22 09:01:58,815 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-22 09:01:58,822 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-22 09:01:58,822 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork0 ======== [2023-11-22 09:01:58,822 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;@23ad1970, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 09:01:58,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-22 09:01:58,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2023-11-22 09:02:00,979 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:02:00,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:02:00,979 INFO L85 PathProgramCache]: Analyzing trace with hash 595643606, now seen corresponding path program 1 times [2023-11-22 09:02:00,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:02:00,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588408553] [2023-11-22 09:02:00,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:02:00,980 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:02:00,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:02:00,981 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 09:02:00,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -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 [2023-11-22 09:02:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:02:01,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-22 09:02:01,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:02:01,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 09:02:01,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 09:02:01,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:02:01,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588408553] [2023-11-22 09:02:01,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588408553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 09:02:01,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 09:02:01,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-22 09:02:01,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083604954] [2023-11-22 09:02:01,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 09:02:01,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 09:02:01,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:02:01,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 09:02:01,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 09:02:01,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:02:01,131 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:02:01,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:02:01,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:02:01,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:02:01,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-22 09:02:01,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:02:01,505 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:02:01,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:02:01,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1842903967, now seen corresponding path program 1 times [2023-11-22 09:02:01,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:02:01,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525022789] [2023-11-22 09:02:01,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 09:02:01,506 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:02:01,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:02:01,507 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 09:02:01,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -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 [2023-11-22 09:02:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 09:02:01,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-22 09:02:01,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:02:01,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-22 09:02:01,747 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 09:02:01,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-22 09:02:01,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:02:01,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525022789] [2023-11-22 09:02:01,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1525022789] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 09:02:01,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 09:02:01,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-22 09:02:01,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206262400] [2023-11-22 09:02:01,813 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 09:02:01,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 09:02:01,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:02:01,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 09:02:01,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-22 09:02:01,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:02:01,816 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:02:01,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:02:01,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:02:01,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:02:02,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:02:02,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:02:02,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-11-22 09:02:02,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:02:02,431 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1 more)] === [2023-11-22 09:02:02,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 09:02:02,431 INFO L85 PathProgramCache]: Analyzing trace with hash 2113927034, now seen corresponding path program 2 times [2023-11-22 09:02:02,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 09:02:02,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382219556] [2023-11-22 09:02:02,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 09:02:02,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-22 09:02:02,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat [2023-11-22 09:02:02,433 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-22 09:02:02,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a24c81-eb0a-4c92-be69-eddf6d1e40af/bin/ugemcutter-verify-ybdnMwjCTB/mathsat -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 [2023-11-22 09:02:02,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-22 09:02:02,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 09:02:02,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-22 09:02:02,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 09:02:02,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-22 09:02:02,750 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-22 09:02:02,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-22 09:02:02,961 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-22 09:02:02,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 09:02:02,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 09:02:02,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382219556] [2023-11-22 09:02:02,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382219556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 09:02:02,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 09:02:02,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 09:02:02,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628022704] [2023-11-22 09:02:02,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 09:02:02,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 09:02:02,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 09:02:02,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 09:02:02,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 09:02:02,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 09:02:02,966 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-22 09:02:02,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 09:02:02,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-22 09:02:02,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-22 09:02:02,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.